A fixed support and pole disconnecting switch

Abstract

This application relates to a fixed bracket and a pole-mounted disconnect switch, belonging to the technical field of smart grids. It includes a connecting plate and a locking component. An upper fixing rod and a lower fixing rod are rotatably mounted on the same side at both ends of the connecting plate. The length directions of the upper and lower fixing rods are perpendicular to the length direction of the connecting plate, and both the upper and lower fixing rods can be adjusted by rotating around their own axes. Several movable wheels are fixed to the sides of the upper and lower fixing rods that are close to each other, and several fixing clamps are fixed to the side of the connecting plate away from the upper fixing rod. In this application, the bracket can be easily transported by a single person using the movable wheels, replacing the traditional heavy crossbeam, significantly reducing labor costs and avoiding deformation during transport.

Description

Technical Field

[0001] This application relates to the technical field of smart grids, and in particular to a fixed bracket and a pole-mounted disconnect switch. Background Technology

[0002] In the construction and operation and maintenance system of smart grid distribution networks, pole-mounted disconnect switches are core switching equipment for line segmentation, fault isolation, and maintenance disconnection, and are widely used in scenarios such as branch nodes of overhead distribution lines and user incoming lines. Their core function is to realize the connection and disconnection of distribution lines through the opening and closing of contacts, ensuring the safety of grid maintenance operations while improving the flexible dispatching capability of the distribution network. With the increasing demands for equipment reliability and ease of installation in smart grids, the structural design and installation process of traditional pole-mounted disconnect switches have gradually become key areas for optimization and upgrading. The rationality of their installation process directly affects the construction efficiency and operation and maintenance costs of the power grid.

[0003] The pole-mounted disconnector disclosed in related technologies mainly consists of a base, a main blade plate, a first insulator, and a second insulator. The first and second insulators are fixedly mounted side-by-side on one side of the base. A first conductive plate is fixedly connected to the end face of the first insulator furthest from the base, and a second conductive plate is fixedly connected to the corresponding end face of the second insulator, with a stationary contact mounted on the second conductive plate. One end of the main blade plate is rotatably connected to the first conductive plate, and the other end is fixedly fitted with a moving contact. The pole-mounted installation process for this disconnector is as follows: first, multiple crossarms are assembled into a crossarm frame on the ground and fixed to the pole; then, the bottom surface of the disconnector base is fastened to the crossarm frame with screws; finally, the two cables are connected to the first and second conductive plates respectively. By rotating the main blade plate, the moving and stationary contacts are opened and closed, thus completing the line switching control.

[0004] Since the disconnecting switch needs to be fixed on the pole by a pre-assembled crossbeam, and the assembled crossbeam is large and rigid, multiple construction workers are required to lift it together when it is transported a short distance on the ground to the pole installation position. This not only greatly increases the labor cost, but also makes the crossbeam prone to deformation due to uneven force during transportation, which affects the installation accuracy of the disconnecting switch. There is room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a fixed support to solve the problems in the above-mentioned related technologies, such as the large size and high rigidity of the crossbeam, the need for multiple people to work together for short-distance ground transportation, high labor costs, and easy deformation, which affect the installation accuracy.

[0006] Firstly, the fixed bracket provided in this application adopts the following technical solution: A fixed bracket includes a connecting plate and a locking element. An upper fixing rod and a lower fixing rod are rotatably mounted on the same side at both ends of the connecting plate. The length directions of the upper and lower fixing rods are perpendicular to the length direction of the connecting plate, and both rods are adjustable by rotating around their own axes. A plurality of movable wheels are fixed to the sides of the upper and lower fixing rods that are close to each other, and a plurality of fixing clamps are fixed to the side of the connecting plate away from the upper fixing rod. When the bracket is temporarily moved, the upper and lower fixing rods can rotate to a moving state where the movable wheels face the bottom, and when installed on a support column, they can rotate to an installation state where the movable wheels are close to each other. The locking element can fix and limit the upper and lower fixing rods in both the moving and installation states. When the bracket is in the installation state, the connecting plate is fixed vertically to the column by the fixing clamps, and the upper fixing rod is positioned above the lower fixing rod.

[0007] By adopting the above technical solution, the fixed bracket can be flexibly switched between "movement" and "installation" states, with significant core advantages: First, during temporary movement, the upper and lower fixed rods are rotated to the position where the moving wheels face downwards and are limited by locking components. The bracket can be easily transported by the rolling of the moving wheels, eliminating the need for multiple people to lift it, greatly reducing labor costs, and avoiding the deformation problem caused by uneven force during the handling of traditional cross-stretchers. Second, during column installation, the two fixed rods are rotated to the position where the moving wheels face each other and locked. The bracket can be quickly and vertically fixed to the column by the fixing clamps of the connecting plate, ensuring accurate positioning and stable installation. The overall structure is compact and easy to operate, which not only improves the efficiency of bracket transportation and installation but also ensures the installation accuracy of subsequent disconnect switches, effectively solving the pain points of inconvenient transportation and easy deformation of cross-stretchers that affect installation quality in related technologies.

[0008] Optionally, the locking component includes a locking rod and locking blocks vertically fixed to both ends of the locking rod. The upper and lower fixing rods have locking slots on their sides away from the connecting plate for the locking blocks to be inserted into.

[0009] By adopting the above technical solution, the locking blocks at both ends of the locking rod engage with the locking slots of the upper and lower fixing rods, which can quickly achieve the limiting and fixing of the two fixing rods in the moving and installed states. The locking method is stable and reliable, which can effectively prevent the fixing rods from rotating or shifting unexpectedly during the transportation or installation of the bracket, and ensure the stability of the bracket. At the same time, the cooperation between the blocks and slots does not require complicated operations, which makes it easy for construction personnel to quickly complete locking and unlocking, further improving the overall efficiency of bracket transportation and installation, and meeting the convenience requirements of on-site construction.

[0010] Optionally, when the support is in a moving state, the upper fixed rod has two traction rods rotatably connected side by side on its top surfaces at both ends, and a positioning component is provided to limit the rotation of the two traction rods. The rotation surface of the traction rod is parallel to the side of the connecting plate away from the upper fixed rod. An intermediate rod is provided on the outer periphery of the upper fixed rod, and the two ends of the intermediate rod are respectively fixedly connected to the end faces of the two traction rods away from the upper fixed rod. When the support is in a moving state, the two traction rods can rotate to a vertically upward traction state and are limited by the positioning component.

[0011] By adopting the above technical solution, the traction rod rotates vertically upwards during movement and is limited by the positioning component. Together with the intermediate rods fixed to the traction rods at both ends, it forms an integrated handle structure, providing operators with a stable grip point and facilitating precise force application to pull the support. The design of the traction rod's rotating surface being parallel to the side of the connecting plate ensures smooth and interference-free rotation. Furthermore, the symmetrical arrangement of the two traction rods ensures balanced force distribution, preventing support displacement caused by single-rod traction. The overall structure has a high degree of integration, eliminating the need to carry additional traction tools, further improving on-site transportation efficiency, and adapting to the flexible needs of construction scenarios.

[0012] Optionally, the positioning component includes a positioning rod slidably mounted on the side of the upper fixed rod facing the traction rod, and an elastic pressing member mounted on the positioning rod. The positioning rod is parallel to the length direction of the upper fixed rod and is located on the side of the traction rod away from the lower fixed rod. Positioning blocks are vertically fixed on both ends of the positioning rod. When the traction rod is in the traction state, a first slot is opened on the side facing the positioning rod. The elastic pressing member is used to drive the positioning rod to slide in a direction close to the traction rod, so that the positioning blocks are engaged in the first slot.

[0013] By adopting the above technical solution, the positioning rod is driven to slide by the elastic compression component, so that the positioning block automatically engages with the first slot of the traction rod, realizing rapid and accurate positioning of the traction rod in the traction state without the need for manual tightening, thus improving operational efficiency. The positioning rod is arranged parallel to the upper fixed rod and located on a specific side of the traction rod, which can ensure balanced positioning force and effectively prevent the traction rod from deflecting or loosening during traction. The continuous force of the elastic compression component can compensate for the assembly gap, enhance positioning stability, adapt to the vibration environment during the movement of the bracket, and further ensure transportation safety.

[0014] Optionally, the elastic compression member includes an elastic telescopic rod with one end fixedly connected to the upper fixed rod facing the side of the traction rod and located on the side of the positioning rod away from the traction rod. The other end of the elastic telescopic rod is fixedly connected to the side of the positioning rod away from the traction rod. The elastic telescopic rod has the property of active elastic elongation.

[0015] By adopting the above technical solution, the elastic telescopic rod has active elastic elongation performance, which can continuously push the positioning rod to slide, so that the positioning block is tightly locked into the slot, realizing the automatic locking of the traction rod state; the structure is simple and compact, requiring no additional operation, effectively compensating for assembly gaps, resisting vibration and impact during movement, and ensuring positioning stability.

[0016] Optionally, a placement groove is provided on the side of the two traction rods that are close to each other. A flexible protective curtain is provided on the outer periphery of the traction rod, with one edge fixedly connected to the inner wall of the placement groove. A sealing plate is fixed on the other edge of the flexible protective curtain. A support member is provided on the side of the positioning rod away from the upper fixed rod. When the bracket is in the moving state, the flexible protective curtain is folded and placed into the placement groove. The sealing plate is detachably installed at the opening edge of the placement groove. When the bracket is in the installed state, the two traction rods can be rotated to a horizontal state in the direction away from the positioning rod. A second slot for the positioning block is provided on the side of the traction rod facing the positioning block. When the bracket is in the installed state and the traction rod is in the horizontal state, the two flexible protective curtains can be unfolded from the placement groove in an inclined upward direction. The support member is used to support and limit the state of the two sealing plates at this time.

[0017] By adopting the above technical solution, in the mobile state, the flexible protective curtain is folded and stored in the slot of the traction rod, and the sealing plate closes the slot, which can prevent the protective curtain from being scratched and damaged during transportation, while not affecting the gripping operation of the traction rod. In the installed state, the traction rod is turned to a horizontal position and locked by the positioning block, and the protective curtain can be unfolded in an inclined upward direction. With the help of the support component to limit the sealing plate, a protective structure covering the upper part of the disconnect switch is formed, which can guide the nesting branches to slide down and reduce the risk of short circuits caused by birds nesting. The overall structure is compact, requiring no additional protective components, and takes into account both the convenience of bracket transportation and the operational safety of the disconnect switch, greatly improving the overall adaptability of the equipment.

[0018] Optionally, the positioning rod has a receiving groove along its length on the side away from the upper fixed rod. The support member includes two support rods arranged side by side in the receiving groove, and the sides of the two support rods that are close to each other are rotatably connected to the inner wall of the receiving groove. The two support rods can rotate in opposite directions to a stored state in the receiving groove and in opposite directions to a supported state perpendicular to the positioning rod. The upper fixed rod is provided with a fixing member that limits the two states of the support rod. When the support rod is in the supported state, a support notch is provided on the top surface away from the upper fixed rod. When the sealing plate is tilted upward when the flexible protective curtain is unfolded, a sealing notch is provided on the bottom surface that engages with and is fixed to the support notch.

[0019] By adopting the above technical solution, the support rod can be rotated and stored in the positioning rod receiving groove, without occupying extra space in the moving state and avoiding interference with other components; when the protective curtain is unfolded, the support rod can be rotated to the support state of the vertical positioning rod and limited by the fixing parts, and its support notch is precisely engaged with the sealing notch of the sealing plate to form a stable support structure, ensuring the stability of the flexible protective curtain after it is tilted and unfolded, and effectively playing the protective role of preventing birds from nesting; the overall structure has a high degree of integration and is easy to operate, further improving the practicality and reliability of the bracket.

[0020] Optionally, the fixing member includes a fixing plate fixed on the side of the upper fixing rod facing the traction rod and located on the side of the positioning rod facing the traction rod. A bent plate facing the positioning rod is vertically fixed on the side of the fixing plate away from the upper fixing rod. A fixing notch is provided on the bent plate. When the two support rods are in the retracted state, the positioning rod slides to abut against the bottom surface of the bent plate. At this time, the bent plate limits the two support rods in the receiving groove. When the two support rods are in the supported state, their outer periphery is inserted into the fixing notch under the action of the elastic extrusion member.

[0021] By adopting the above technical solution, in the folded state, the positioning rod slides to abut against the bottom surface of the bending plate, and the bending plate can effectively limit the support rod in the receiving groove, preventing it from accidentally rotating out during the movement of the bracket; in the supported state, with the help of the elastic pressing force, the outer periphery of the support rod can automatically engage with the fixing notch of the bending plate, and locking can be completed without additional operation, ensuring the stability of the support structure; the overall structure is ingeniously designed and highly integrated, realizing the limiting function of two states through the same set of components, simplifying the operation process and improving the convenience of the bracket in the field.

[0022] Optionally, a guide slope is provided at the opening edge of the fixed notch.

[0023] By adopting the above technical solution, the guide slope can be set so that the outer periphery of the support rod can quickly slide into the fixed notch, reducing the difficulty of snap-fit ​​alignment, improving the efficiency of support state locking, and ensuring the stability of limit position.

[0024] Secondly, the pole-mounted disconnect switch provided in this application adopts the following technical solution: A pole-mounted disconnect switch includes a base, a main blade plate, and a fixed bracket as described above. A first insulator and a second insulator are fixedly mounted side by side on one side of the base. A first conductive plate, rotatably connected to one end of the main blade plate, is fixedly mounted on the end face of the first insulator away from the base. A second conductive plate is fixedly mounted on the end face of the second insulator away from the base, and a stationary contact plate is fixedly mounted on the second conductive plate. A movable contact plate is fixedly mounted on the other end of the main blade plate. When the bracket is in the installation state, the base is detachably mounted vertically on the vertical side of the upper and lower fixed rods facing the traction rod.

[0025] By adopting the above technical solution, firstly, relying on the dual-state switching function of the support frame for movement and installation, the disconnector switch and support frame can be pre-installed and debugged on the ground, and then conveniently transported to the pole using the support frame's wheels, eliminating the need for multiple people to carry the traditional crossbeam, significantly reducing labor costs and avoiding deformation during transport that could affect installation accuracy; secondly, after the support frame is vertically fixed to the pole with fixing clamps, the disconnector switch base can be directly installed vertically on the sides of the upper and lower fixing rods, ensuring precise installation positioning and strong stability, eliminating the crossbeam assembly process and shortening the on-site construction cycle; thirdly, the support frame also has a bird nesting protection function, which can simultaneously ensure the operational safety of the disconnector switch without the need for additional protective devices, achieving integrated installation and maintenance. The overall structure is compact and highly adaptable, effectively improving the installation efficiency and operational reliability of the pole-mounted disconnector switch.

[0026] In summary, this application includes the following beneficial technical effects: The support frame allows for convenient single-person transport using casters, replacing the traditional bulky crossbeam, significantly reducing labor costs and preventing deformation during transport. Locking and positioning components ensure stable positioning of all parts, guaranteeing stability during transport and installation. Simultaneously, the pull rod integrates a flexible protective curtain and support components, which can be unfolded after installation to form a bird-proof structure, reducing the risk of short circuits without requiring additional protective devices. The disconnect switch and support frame can be pre-assembled and directly vertically fixed to the column, eliminating the need for crossbeam assembly, improving installation accuracy and efficiency, and achieving integrated equipment installation, transport, and protection, significantly optimizing the construction and maintenance experience of pole-mounted switchgear. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the structure of the fixed bracket in a movable state according to an embodiment of this application; Figure 2 This is an exploded structural diagram illustrating the installation distribution of the connecting plate and locking components in an embodiment of this application; Figure 3 This is a schematic diagram illustrating the structure of the fixed bracket in the installation state according to an embodiment of this application; Figure 4 This is a partial structural diagram illustrating the installation and mating of the positioning component in an embodiment of this application; Figure 5 This is a partial structural diagram illustrating the installation and cooperation of the positioning rod and the elastic telescopic rod in an embodiment of this application; Figure 6 This is a partial cross-sectional view of the installation and fitting of the positioning component in an embodiment of this application; Figure 7 This is a schematic diagram illustrating the installation and assembly of the base and the main blade plate in an embodiment of this application; Figure 8This is a schematic diagram illustrating the installation and cooperation of the fixed bracket and the disconnecting switch in an embodiment of this application; Figure 9 This is a partial structural diagram illustrating the installation and mating of the fasteners in an embodiment of this application; Figure 10 This is a schematic diagram illustrating the installation distribution of the support rod and positioning rod in an embodiment of this application; Figure 11 This is a partial structural diagram illustrating the installation and assembly of the support rod in an embodiment of this application; Figure 12 yes Figure 11 An enlarged schematic diagram of part A in the middle.

[0028] In the diagram, 1. Connecting plate; 11. Upper fixing rod; 111. Locking slot; 12. Lower fixing rod; 13. Moving wheel; 14. Fixing clamp; 2. Locking component; 21. Locking rod; 22. Locking block; 3. Traction component; 31. Traction rod; 311. First slot; 312. Second slot; 313. Placement slot; 32. Intermediate rod; 33. Flexible protective curtain; 34. Sealing plate; 341. Sealing gap; 4. Positioning component; 41. Positioning rod; 4 11. Positioning insert; 412. Receiving groove; 42. Elastic extrusion component; 421. Elastic telescopic rod; 5. Support component; 51. Support rod; 511. Support notch; 6. Fixing component; 61. Fixing plate; 62. Bending plate; 621. Fixing notch; 622. Guide slope; 7. Main blade plate; 71. Moving contact piece; 8. Base; 81. First insulator; 82. Second insulator; 83. First conductive piece; 84. Second conductive piece; 85. Stationary contact piece. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings.

[0030] Example: Reference Figure 1 , Figure 2 and Figure 3 A fixed bracket includes a connecting plate 1 and a locking member 2. An upper fixing rod 11 and a lower fixing rod 12 are rotatably mounted on the same side at both ends of the connecting plate 1. The length directions of the upper fixing rod 11 and the lower fixing rod 12 are perpendicular to the length direction of the connecting plate 1. The upper fixing rod 11 and the lower fixing rod 12 can be adjusted by rotating around their own axis. Two movable wheels 13 are fixed on the sides of the upper fixing rod 11 and the lower fixing rod 12 that are close to each other. Two fixing clamps 14 are fixed on the side of the connecting plate 1 away from the upper fixing rod 11. The fixing clamps 14 are conventional fixing structures that are fastened with bolts and are used to help fix the connecting plate 1 to the column. They will not be described in detail here. When the bracket is temporarily moved, the upper fixing rod 11 and the lower fixing rod 12 can be rotated to the moving wheel 13 facing the bottom surface and locked by the locking member 2. When installed on the support column, the upper fixing rod 11 and the lower fixing rod 12 can be rotated to the installation state where the moving wheel 13 is close to each other, and locked by the locking part 2. At this time, the connecting plate 1 is fixed to the column in the vertical direction by the fixing clamp 14, and the upper fixing rod 11 is located above the lower fixing rod 12.

[0031] Reference Figure 2 and Figure 3 The locking component 2 includes a locking rod 21 and locking blocks 22 vertically fixed to both ends of the locking rod 21. The upper fixing rod 11 and the lower fixing rod 12 are provided with locking slots 111 on their sides away from the connecting plate 1. When the upper fixing rod 11 and the lower fixing rod 12 are in a moving state or an installed state, both locking blocks 22 can be embedded into the corresponding locking slots 111 for fixation.

[0032] Reference Figure 4 and Figure 5 The upper fixed rod 11 is provided with a traction member 3 on the outside; when the bracket is in the moving state, the traction member 3 includes two traction rods 31 that are rotatably connected to the top surfaces of both ends of the upper fixed rod 11. The upper fixed rod 11 is also provided with a positioning member 4 that limits the rotation state of the two traction rods 31. The rotation surface of the traction rods 31 is parallel to the side of the connecting plate 1 away from the upper fixed rod 11. An intermediate rod 32 is provided on the outer periphery of the upper fixed rod 11. The two ends of the intermediate rod 32 are fixedly connected to the end faces of the two traction rods 31 away from the upper fixed rod 11. When the bracket is in the moving state, the two traction rods 31 can rotate to the vertical upward traction state and be limited by the positioning member 4. At this time, the intermediate rod 32 and the two traction rods 31 are used as "handles" to facilitate the movement of the bracket. When the bracket is in the installation state, the two traction rods 31 can rotate to the horizontal state in the direction away from the positioning rod 41.

[0033] Reference Figure 5 and Figure 6 The positioning component 4 includes a positioning rod 41 slidably mounted on the side of the upper fixed rod 11 facing the traction rod 31, and an elastic pressing component 42 mounted on the positioning rod 41. The positioning rod 41 is parallel to the length direction of the upper fixed rod 11 and is located on the side of the traction rod 31 away from the lower fixed rod 12. Positioning blocks 411 are vertically fixed on both ends of the positioning rod 41. When the traction rod 31 is in the traction state, a first slot 311 is opened on the side facing the positioning rod 41. When the bracket is in the installation state, the two traction rods 31 can be rotated to a horizontal state in the direction away from the positioning rod 41. At this time, the traction rod 31 has a second slot 312 on the side facing the positioning block 411. When the traction rod 31 is in the traction state, the elastic pressing member 42 is used to drive the positioning rod 41 to slide in the direction close to the traction rod 31, so that the positioning block 411 is inserted into the first slot 311.

[0034] Reference Figure 6 The elastic compression member 42 includes an elastic telescopic rod 421, one end of which is fixedly connected to the side of the upper fixed rod 11 facing the traction rod 31 and located on the side of the positioning rod 41 away from the traction rod 31. The other end of the elastic telescopic rod 421 is fixedly connected to the side of the positioning rod 41 away from the traction rod 31. The elastic telescopic rod 421 has the property of active elastic extension. This is a conventional elastic telescopic structure with an internal spring, which will not be described in detail here.

[0035] Reference Figure 7 and Figure 8 A pole-mounted disconnect switch includes a base 8, a main blade plate 7 and the aforementioned fixed bracket, wherein a first insulator 81 and a second insulator 82 are fixedly arranged side by side on one side of the base 8, and a first conductive sheet 83 that is rotatably connected to one end of the main blade plate 7 is fixedly arranged on the end face of the first insulator 81 away from the base 8. A second conductive sheet 84 is fixed on the end face of the second insulator 82 away from the base 8, and a stationary contact sheet 85 is fixed on the second conductive sheet 84; a movable contact sheet 71 is fixed on the other end of the main blade plate 7; when the bracket is in the installation state, the base 8 is detachably installed vertically on the vertical side of the upper fixed rod 11 and the lower fixed rod 12 facing the traction rod 31 by screws.

[0036] Reference Figure 9 , Figure 10 and Figure 11 A placement groove 313 is provided on the side of the two traction rods 31 that are close to each other. A flexible protective curtain 33 is provided on the outer periphery of the traction rod 31, with one side edge fixedly connected to the inner wall of the placement groove 313. A sealing plate 34 is fixed on the other side edge of the flexible protective curtain 33. A support member 5 is provided on the side of the positioning rod 41 away from the upper fixed rod 11. When the bracket is in the moving state, the flexible protective curtain 33 is folded and placed into the placement groove 313. At this time, the sealing plate 34 can be detached and installed at the opening edge of the placement groove 313. When the bracket is fixed to the column and the disconnect switch is installed on the disconnect switch, the bracket is in the installed state, the traction rod 31 is in the horizontal state, the elastic compression member 42 drives the positioning plug 411 to be inserted into the second slot 312, and the two flexible protective curtains 33 can be unfolded from the placement slot 313 in the inclined upward direction, and the support member 5 supports and limits the two sealing plates 34 in this state. At this time, the flexible protective curtains 33 protect the upper part of the disconnect switch, and the nesting branches will slide directly down the inclined flexible protective curtains 33, reducing the possibility of birds nesting above the disconnect switch.

[0037] Reference Figure 9 , Figure 10 and Figure 11 The positioning rod 41 has a receiving groove 412 on its side away from the upper fixed rod 11 along its own length direction. The support member 5 includes two support rods 51 arranged side by side in the receiving groove 412. The sides of the two support rods 51 that are close to each other are rotatably connected to the inner wall of the receiving groove 412. The two support rods 51 can rotate in opposite directions to be stored in the receiving groove 412, and rotate in opposite directions to be supported perpendicular to the positioning rod 41. The upper fixing rod 11 is provided with a fixing member 6 that limits the two states of the support rod 51. When the support rod 51 is in the supported state, a support notch 511 is opened on the top surface away from the upper fixing rod 11, and a sealing notch 341 is opened on the bottom surface of the sealing plate 34. When the flexible protective curtain 33 is tilted upwards and the two support rods 51 are in a supported state, the sealing notch 341 on the sealing plate 34 and the support notch 511 on the top surface of the support rod 51 interlock and are further fixed with screws. At this time, the flexible protective curtain 33 can protect the upper part of the disconnecting switch. Reference Figure 11 and Figure 12 The fixing member 6 includes a fixing plate 61 fixed on the side of the upper fixing rod 11 facing the traction rod 31 and located on the side of the positioning rod 41 facing the traction rod 31. A bent plate 62 facing the positioning rod 41 is vertically fixed on the side of the fixing plate 61 away from the upper fixing rod 11. A fixing notch 621 is provided on the bent plate 62, and a guide slope 622 is provided at the opening edge of the fixing notch 621. When the two support rods 51 are in the retracted state, the positioning rod 41 slides to abut against the bottom surface of the bending plate 62, and the bending plate 62 limits the two support rods 51 in the receiving groove 412 at this time; when the two support rods 51 are in the supported state, due to the action of the elastic extrusion member 42, the outer periphery of the two support rods 51 is inserted into the fixing notch 621 for limiting and fixing.

[0038] The implementation principle of this application embodiment is as follows: Moving state: When both the upper fixed rod 11 and the lower fixed rod 12 are rotated to the moving state with the moving wheel 13 facing downward, the locking block 22 is inserted into the locking slot 111 to limit the rotation of the two rods; then the traction rod 31 is rotated to the vertical upward state, the elastic pressing member 42 pushes the positioning rod 41 to slide, and the positioning block 411 is inserted into the first slot 311 to fix the state of the traction rod 31, forming a traction structure with the middle rod 32 and the two traction rods 31 as handles, which can be pulled to realize the convenient movement of the bracket; at this time, the flexible protective curtain 33 is folded and placed into the placement slot 313, and the sealing plate 34 closes the opening of the placement slot 313.

[0039] Installation of protective configuration: Rotate the upper fixing rod 11 and lower fixing rod 12 to a position where the moving wheels 13 are close to each other. After the locking piece 2 is in position, fix the connecting plate 1 vertically to the column using the fixing clamp 14. Then rotate the traction rod 31 to a horizontal position and use the positioning insert 411 to engage with the second slot 312 for fixation. Rotate the support rod 51 to a support position of the vertical positioning rod 41. The elastic pressing piece 42 drives the positioning rod 41 to move, so that the two support rods 51 engage with the fixing notch 621 on the bending plate 62. Then, tilt and unfold the flexible protective curtain 33 so that the sealing notch 341 on the sealing plate 34 engages with the support notch 511 on the support rod 51 and is tightened with screws to form a protective structure for the upper part of the disconnect switch. Finally, install the disconnect switch base 8 on the side of the upper and lower fixing rods 12 with screws to complete the overall assembly.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pole-mounted disconnector, characterized in that The device includes a base (8), a main blade plate (7), and a fixed bracket. The fixed bracket includes a connecting plate (1) and a locking element (2). An upper fixed rod (11) and a lower fixed rod (12) are rotatably mounted on the same side at both ends of the connecting plate (1). The length directions of the upper fixed rod (11) and the lower fixed rod (12) are perpendicular to the length direction of the connecting plate (1). The upper fixed rod (11) and the lower fixed rod (12) can be adjusted by rotating around their own axis. Several moving wheels (13) are fixed on the sides of the upper fixed rod (11) and the lower fixed rod (12) that are close to each other. Several fixing clamps (14) are fixed on the side of the connecting plate (1) that is away from the upper fixed rod (11). The upper fixing rod (11) and the lower fixing rod (12) can be rotated to a moving state with the moving wheel (13) facing the bottom when the bracket is temporarily moved, and can be rotated to an installation state with the moving wheels (13) close to each other when the bracket is installed on the column; the locking member (2) can fix and limit the upper fixing rod (11) and the lower fixing rod (12) in the moving state and the installation state; the connecting plate (1) is fixed to the column in the vertical direction by the fixing clamp (14) when the bracket is in the installation state, and the upper fixing rod (11) is located above the lower fixing rod (12) at this time; The upper fixed rod (11) has two traction rods (31) rotatably connected side by side on the top surface of both ends when the bracket is in the moving state. A positioning component (4) is provided to limit the rotation state of the two traction rods (31). The rotation surface of the traction rod (31) is parallel to the side of the connecting plate (1) away from the upper fixed rod (11). The upper fixed rod (11) is provided with an intermediate rod (32) on its outer periphery. The two ends of the intermediate rod (32) are respectively fixedly connected to the end faces of the two traction rods (31) away from the upper fixed rod (11). When the bracket is in a moving state, the two traction rods (31) can be rotated to a vertically upward traction state and limited by the positioning member (4). Placement slots (313) are provided on the sides of the two traction rods (31) that are close to each other. A flexible protective curtain (33) is provided on the outer periphery of the traction rod (31) and is fixedly connected to the inner wall of the placement slot (313) on one side. A sealing plate (34) is fixed on the other side of the flexible protective curtain (33). A support member (5) is provided on the side of the positioning member (4) away from the upper fixed rod (11). When the bracket is in a moving state, the flexible protective curtain (33) is folded and placed into the placement slot (313). The sealing plate (34) can be detachably installed at the opening edge of the placement slot (313). When the bracket is in the installation state, the two traction rods (31) can be rotated to a horizontal state in a direction away from the positioning member (4); when the bracket is in the installation state and the traction rods (31) are in a horizontal state, the two flexible protective curtains (33) can be unfolded from the placement slot (313) in an inclined upward direction, and the support member (5) is used to support and limit the state of the two sealing plates (34) at this time.

2. A pole-mounted disconnector according to claim 1, characterised in that The locking component (2) includes a locking rod (21) and locking blocks (22) vertically fixed on both ends of the locking rod (21). The upper fixing rod (11) and the lower fixing rod (12) have locking slots (111) on their sides away from the connecting plate (1) for the locking blocks (22) to be inserted.

3. A pole-mounted disconnector according to claim 1, characterised in that The positioning member (4) includes a positioning rod (41) slidably disposed on the side of the upper fixed rod (11) facing the traction rod (31) and an elastic compression member (42) disposed on the positioning rod (41). The positioning rod (41) is parallel to the length direction of the upper fixed rod (11) and the positioning rod (41) is located on the side of the traction rod (31) away from the lower fixed rod (12). The positioning rod (41) has a positioning insert (411) fixed vertically on both ends. When the traction rod (31) is in the traction state, a first slot (311) is opened on the side facing the positioning rod (41). The elastic extrusion member (42) is used to drive the positioning rod (41) to slide in the direction close to the traction rod (31), so that the positioning insert (411) is inserted into the first slot (311).

4. A pole-mounted disconnector according to claim 3, characterised in that The elastic compression member (42) includes an elastic telescopic rod (421) with one end fixedly connected to the side of the upper fixed rod (11) facing the traction rod (31) and located on the side of the positioning rod (41) away from the traction rod (31). The other end of the elastic telescopic rod (421) is fixedly connected to the side of the positioning rod (41) away from the traction rod (31). The elastic telescopic rod (421) has the property of active elastic elongation.

5. A pole-mounted disconnector according to claim 3, characterised in that When the bracket is in the installation state, the two traction rods (31) have a second slot (312) on the side facing the positioning block (411) for the positioning block (411) to be inserted.

6. A pole-mounted disconnector according to claim 5, characterised in that The positioning rod (41) has a receiving groove (412) on its side away from the upper fixing rod (11) along its own length direction. The support member (5) includes two support rods (51) arranged side by side in the receiving groove (412). The sides of the two support rods (51) that are close to each other are rotatably connected to the inner wall of the receiving groove (412). The two support rods (51) can be rotated in opposite directions to be stored in the receiving groove (412) and rotated in opposite directions to be supported perpendicular to the positioning rod (41). The upper fixing rod (11) is provided with a fixing member (6) that limits the two states of the support rod (51); when the support rod (51) is in the supporting state, a support notch (511) is opened on the top surface away from the upper fixing rod (11); when the sealing plate (34) is tilted upward and unfolded, a sealing notch (341) is opened on the bottom surface that is engaged and fixed with the support notch (511).

7. A pole-mounted disconnector according to claim 6, characterised in that The fixing member (6) includes a fixing plate (61) fixed on the side of the upper fixing rod (11) facing the traction rod (31) and located on the side of the positioning rod (41) facing the traction rod (31). A bent plate (62) facing the positioning rod (41) is vertically fixed on the side of the fixing plate (61) away from the upper fixing rod (11). A fixing notch (621) is provided on the bent plate (62). When the two support rods (51) are in the retracted state, the positioning rod (41) slides to the bottom surface of the bending plate (62), and the bending plate (62) limits the two support rods (51) in the receiving groove (412) at this time; when the two support rods (51) are in the supporting state, their outer periphery is inserted into the fixing notch (621) under the action of the elastic extruder (42).

8. A pole-mounted disconnector according to claim 7, characterised in that A guide slope (622) is provided at the opening edge of the fixed notch (621).

9. A pole-mounted disconnector according to claim 1, characterised in that A first insulator (81) and a second insulator (82) are fixed side by side on one side of the base (8). A first conductive sheet (83) that is rotatably connected to one end of the main blade plate (7) is fixed on the end face of the first insulator (81) away from the base (8). The second insulator (82) has a second conductive sheet (84) fixed on the end face away from the base (8), and a stationary contact sheet (85) is fixed on the second conductive sheet (84); the other end of the main blade plate (7) has a moving contact sheet (71); the base (8) is detachably mounted vertically on the vertical side of the upper fixed rod (11) and the lower fixed rod (12) facing the traction rod (31) when the bracket is in the installation state.

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