Rotary disconnecting device for rigid contact network

Abstract

The utility model discloses a rotary disconnecting device for a rigid contact network, which comprises a movable busbar, and fixed busbars are respectively arranged at two ends of the movable busbar; the movable busbar is rotationally connected with the cantilever, and the end, away from the movable busbar, of the cantilever is rotationally connected with a cantilever base through a vertical rotating shaft. The rotating shaft of at least one cantilever is in transmission connection with a driving motor; electric connection devices are arranged between the two ends of the movable busbar and the fixed busbar; each electric connection device comprises two matched transition elements, the bottom of each transition element is provided with a transition element wire clamp used for clamping a contact wire, and the tail end of the bottom of each transition element is warped upwards, so that the contact wire is warped upwards at the tail end of the corresponding transition element; and each electric connection device also comprises an elastic slot piece and an insertion piece which are matched with each other. According to the scheme, electric control such as remote operation of disconnection and recovery of the contact network can be realized, and smooth passing of the pantograph is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of rigid contact wire switching devices, and specifically relates to a rigid contact wire rotary disconnection device. Background Technology

[0002] In subway tunnels, blast doors or floodgates are typically installed on the platform side or at river crossings. These are primarily used to prevent flooding caused by water rushing into the tunnel or station due to tunnel ruptures, serving to facilitate emergency rescue or block water flow. Blitz doors or blast doors come in two closing mechanisms: swing type and swing-rotor type. When such an emergency occurs and the blast door needs to be closed, the rigid contact wire busbar will cause mechanical interference. Therefore, a disconnection device is required to disconnect the rigid contact wire, creating the space needed for the door to close.

[0003] Currently, the rigid automatic disconnectable connectors used under floodgates or air-raid shelters operate by horizontally tripping and then falling vertically. After use, specialized personnel must be on-site to restore them, ensuring accurate alignment of conductive components at the electrical connection points. This method is inconvenient for routine maintenance, repairs, and trial operations, compromising equipment reliability in critical situations. Furthermore, the heavy weight of the electric equipment and the lack of suspension points on the disconnectable section make it prone to hardening; uneven transitions between the fixed and disconnectable sections can cause arcing when the pantograph passes at high speeds. This arcing effect can damage and corrode the equipment, reducing its reliability and causing abnormal electrical wear on the locomotive's pantograph carbon contact plate.

[0004] Furthermore, in current electrified railway sections, train loading and unloading at freight loading and unloading lines are primarily done manually; maintenance in depots is mainly completed using diesel locomotives. While some loading / unloading lines or maintenance depots have been electrified, their overhead contact lines are mostly statically suspended, affecting freight loading and unloading and vehicle maintenance. Existing rigid, movable overhead contact line systems are complex in structure, inconvenient to install, have limited applicability, and impose high requirements on line operating conditions. Therefore, a disconnecting device could be considered as a replacement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a rigid contact wire rotary disconnection device, which solves the problems of existing technical solutions such as the need for manual connection and restoration after disconnection, hard points caused by the device, easy arcing, and complex structure. It achieves the beneficial effects of electric control of disconnection and restoration, simple structure, light electrical connection device, and ensuring smooth passage of pantograph.

[0006] According to the technical solution of this utility model, this utility model provides a rigid contact wire rotary disconnection device, including a movable busbar and fixed busbars at both ends of the movable busbar; the movable busbar is rotatably connected to a cantilever via a positioning clamp, and multiple cantilever arms are distributed along the length of the movable busbar, with a cantilever base rotatably connected to the end of the cantilever arm away from the movable busbar via a vertical rotating shaft; at least one cantilever arm's rotating shaft is driven by a drive motor; electrical connection devices are provided between both ends of the movable busbar and the fixed busbars; each electrical connection device includes two matching transition elements. Two transition elements are connected to a movable bus and a fixed bus, respectively. The two transition elements are bent in opposite directions in the horizontal direction to be misaligned. The bottom of the transition element is provided with a transition element clamp for holding the contact wire, and the bottom end of the transition element is upturned so that the contact wire is upturned at the end of the transition element. In each electrical connection device, there are also matching elastic slot pieces and plugs. The elastic slot pieces and plugs can move relative to each other in the horizontal direction to make contact and conduct electricity or to separate and disconnect. One of the elastic slot pieces and plugs is connected to the transition element of the movable bus, and the other is connected to the transition element of the fixed bus.

[0007] In some embodiments, the resilient slot member includes a first conductive plate and a second conductive plate that are resilient, the first conductive plate and the second conductive plate being disposed opposite each other and having a gap between them, the first conductive plate and the second conductive plate being bent away from each other on one side to form a insertion guide; the plug can enter and exit the gap between the first conductive plate and the second conductive plate through the insertion guide to contact the resilient slot member for conduction or to separate and disconnect.

[0008] In some embodiments, the first conductive plate is located above the second conductive plate, and both the first and second conductive plates have a vertically bent section at the end away from the insertion guide port. The vertically bent sections of the first and second conductive plates are adjustablely connected by bolts.

[0009] In some embodiments, a first connecting post extends upward from the first conductive plate, and a second connecting post extends downward from below the second conductive plate; a C-shaped structural member and an L-shaped structural member are provided on the transition element where the elastic slot member is located. The opening of the C-shaped structural member faces the insertion side, and mounting connection holes are provided on the upper and lower side walls of the C-shaped structural member. The first connecting post and the second connecting post are connected to the mounting connection holes correspondingly. The lower side wall of the C-shaped structural member is connected to the transition element; the vertical section of the L-shaped structural member is adjustablely connected to the vertical bending section of the first conductive plate by bolts, and the horizontal section of the L-shaped structural member is connected to the transition element.

[0010] In some implementations, the resilient slot is connected to the transition element of the fixed bus, and the plug is connected to the transition element of the movable bus.

[0011] In some embodiments, an insulator and a positioning clamp connecting plate are sequentially provided at the end of the cantilever away from the cantilever base, and the positioning clamp connecting plate is rotatably connected to the positioning clamp.

[0012] In some implementations, a ground wire clamp is also provided next to the positioning clamp on the mobile bus, and the ground wire clamp is grounded.

[0013] In some implementations, anti-collision devices are provided on the cantilever and / or cantilever base.

[0014] In some implementations, limit switches are provided on the cantilever, shaft, and / or cantilever base.

[0015] In some embodiments, the two fixed busbars at both ends of the movable busbar are located on both sides of the door, which is a flood-proof door or a civil defense door; the first position of the limit switch corresponds to the state after the cantilever rotates to the point where the movable busbar is disconnected from the fixed busbar and the movable busbar leaves enough space for the door to close; the second position of the limit switch corresponds to the state after the cantilever rotates to the point where the movable busbar is electrically connected to the fixed busbar; it also includes a control system, which is connected to the limit switch and the door drive system.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] This utility model's rigid contact wire rotary disconnection device enables electrically controlled, for example, remote operation of contact wire disconnection and restoration at personnel-proof or flood-proof doors. Similar products can only remotely disconnect mobile contact wires at personnel-proof or flood-proof doors. Restoring mobile contact wires requires professional technicians to perform on-site restoration after a disaster or when the mobile contact wire is de-energized, demanding a high level of operator skill. When the busbar is severely corroded, it can easily lead to pantograph-contact wire accidents. Common disconnectable connector devices are inherently heavy and prone to sagging and hard spots. The electrical connection device in this solution adopts a through-type, busbar-like terminal structure, including two transition elements, preferably aluminum alloy transition elements, which allow the pantograph to pass smoothly and avoid arcing. It also adopts an arc-angle contact method, similar to an intermediate connector design, with a specific angle arc design at the front end, which can form a small anchor joint structure during use, further ensuring the smooth passage of the pantograph. It also includes elastic slots and plugs, using elasticity to ensure contact effect, and is relatively lightweight, avoiding the formation of hard spots. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device provided by this utility model.

[0019] Figure 2 yes Figure 1 A partial structural diagram of the rightmost part.

[0020] Figure 3 yes Figure 1 A partial structural diagram of the driven cantilever in the diagram.

[0021] Figure 4 This is a three-dimensional structural diagram of the electrical connection device provided by this utility model.

[0022] Figure 5 This is a top view of the electrical connection device provided by this utility model.

[0023] Figure 6 This is a schematic diagram of the main structure of the electrical connection device provided by this utility model.

[0024] Figure 7 This is a partial structural diagram of the active cantilever provided by this utility model from another angle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Movable busbar; 2. Fixed busbar; 3. Positioning clamp; 4. Cantilever; 5. Rotating shaft; 6. Cantilever base; 7. Drive motor; 8. Transition element; 9. Transition element clamp; 10. Flexible slot component; 11. First conductive plate; 12. Second conductive plate; 13. Insertion guide port; 14. Insert; 15. First connecting post; 16. Second connecting post; 17. C-shaped structural component; 18. L-shaped structural component; 19. Insulator; 20. Positioning clamp connecting plate; 21. Ground wire clamp; 22. Anti-collision device; 23. Limit switch. Detailed Implementation

[0027] This invention provides a rotary disconnection device for rigid contact networks, addressing the need to release space above the track in special circumstances, such as maintenance depots, openable bridges, loading and unloading yards, subway floodgates, or air-raid shelter doors. It solves problems associated with existing solutions, such as the need for manual reconnection after disconnection, hard points in the device, susceptibility to arcing, and complex structures. A typical solution of this invention includes a through-type arc-angle contact connecting a fixed busbar and a movable busbar. An active cantilever and a driven cantilever are located on the movable busbar. The active cantilever, driven by a motor, rotates the driven cantilever, thereby moving the movable busbar closer to the tunnel wall, releasing space above the track to achieve the intended use. This solution achieves advantages such as electrically controlled disconnection and reconnection, simple structure, lightweight electrical connection device, and smooth pantograph passage. This solution can be used in various scenarios, including vehicle roof maintenance, ferry passage, overhead crane use, and rapid closure of floodgates or air-raid shelter doors.

[0028] Please see Figures 1 to 6 This utility model discloses a rigid contact wire rotary disconnection device, comprising a movable busbar 1, with fixed busbars 2 at both ends of the movable busbar 1. The movable busbar 1 is rotatably connected to a cantilever 4 via a positioning clamp 3, and the movable busbar 1 and the cantilever 4 can rotate relative to each other about a vertical axis. Multiple cantilever 4s are distributed along the length of the movable busbar 1, with the same length and parallel arrangement. At the end of each cantilever 4 furthest from the movable busbar 1, a cantilever base 6 is rotatably connected via a vertical pivot 5. The cantilever base 6 is connected to other fixed components, such as tunnel barriers or columns. At least one cantilever 4 has its pivot 5 connected to a drive motor 7, making this one or more cantilever 4 the active cantilever, capable of horizontal rotation under the drive of the drive motor 7. The remaining cantilever 4s (if any) without drive motors 7 are driven cantilever 4s, serving to assist in positioning and ensure the stability of the busbar and contact wire. The driven cantilever 4s rotate with the active cantilever 4.

[0029] The positions and number of active and driven cantilever arms are determined based on specific factors such as the length of the moving busbar 1. Figure 1 In the embodiment shown, three active cantilever arms are provided at both ends and the middle, and the rest are driven cantilever arms; for a shorter moving busbar 1, it may be selected to have only two active cantilever arms, or one active cantilever arm and one driven cantilever arm; for a longer moving busbar 1, it may be selected to have more active cantilever arms and / or driven cantilever arms.

[0030] Understandable, Figure 1 Only a portion of the fixed busbar 2 is shown. The fixed busbar 2 is also connected to the fixed structure via clamps, cantilever, or other means. The difference between the fixed busbar 2 and the movable busbar 1 is that the fixed busbar 2 remains fixed in both the conductive connection and disconnection states of the contact network. Furthermore, both the fixed busbar 2 and the movable busbar 1 have contact wires at their bottoms. Generally, when the contact network is conductively connected, the movable busbar 1 and the fixed busbar 2 are positioned along a continuous line.

[0031] Please see Figures 4 to 6Electrical connection devices are provided at both ends of the movable busbar 1 and between it and the fixed busbar 2. Each electrical connection device includes two matching transition elements 8, which are connected to the movable busbar 1 and the fixed busbar 2 respectively. The two transition elements 8 are bent in opposite directions in the horizontal direction to create a misalignment. This misalignment means that the two transition elements 8 are side-by-side, forming an overlap area between the movable busbar 1 and the fixed busbar 2, and that the two transition elements 8 deflect in opposite directions relative to the length of the busbar, and are spaced apart but not in contact. More specifically, the transition elements 8 are aluminum alloy transition elements, the busbar is a profile with a cavity in the middle, and the transition elements 8 are inserted into and fixed within the cavity of the busbar, forming an extension at the end of the busbar. More preferably, the transition elements 8 are horizontally placed in a U-shape with a hollow middle section, thereby effectively reducing weight and facilitating the installation of different structures at the top and bottom of the transition elements 8. The bottom of the transition element 8 is provided with a transition element clamp 9 for holding the contact wire. There are usually multiple transition element clamps 9. The position of the transition element clamp 9 corresponds to the part of the busbar bottom used to hold the contact wire. The end of the bottom of the transition element 8 is curved upward at a set angle so that the contact wire is curved upward at the end of the transition element 8, thus forming a compact anchor joint and realizing the function of smooth transition of the pantograph.

[0032] Each electrical connection device also includes a matching flexible slot 10 and plug 14. The flexible slot 10 and plug 14 are capable of moving relative to each other in the horizontal direction to make contact for conduction or to separate and disconnect. The on / off of the contact network electrical connection is achieved by inserting the flexible end into the other end. One of the flexible slot 10 and plug 14 is connected to the transition element 8 of the movable bus 1, and the other is connected to the transition element 8 of the fixed bus 2.

[0033] More specifically, the resilient slot member 10 includes a first conductive plate 11 and a second conductive plate 12 with elasticity. The first conductive plate 11 and the second conductive plate 12 are disposed opposite each other with a gap between them. The first conductive plate 11 and the second conductive plate 12 are bent opposite each other on one side to form a insertion guide opening 13. In other words, the ends of the first conductive plate 11 and the second conductive plate 12 are expanded outward to facilitate the insertion of the plug 14. The plug 14 can enter and exit the gap between the first conductive plate 11 and the second conductive plate 12 through the insertion guide opening 13 to make contact with the resilient slot member 10 for conduction or to separate and disconnect.

[0034] More preferably, the first conductive plate 11 is located above the second conductive plate 12. Both the first conductive plate 11 and the second conductive plate 12 have a vertically bent section at the end away from the insertion guide port 13. The vertically bent sections of the first conductive plate 11 and the second conductive plate 12 are adjustablely connected by bolts. For example, the vertically bent sections of the first conductive plate 11 and the second conductive plate 12 may have vertically oriented slots or multiple vertically distributed holes. After adjusting and determining the relative position of the first conductive plate 11 and the second conductive plate 12 (i.e., the size of the gap between them), bolts are inserted into the vertically bent sections and tightened with nuts at the ends of the bolts (wavers may also be provided if necessary), thus achieving positioning. This solution adopts an adjustable configuration, has a simple structure, and is easy to produce and apply.

[0035] Preferably, a first connecting post 15 extends upward from the first conductive plate 11, and in the illustrated embodiment, there are two first connecting posts 15; a second connecting post 16 extends downward from below the second conductive plate 12, and in the illustrated embodiment, there are two second connecting posts 16. A C-shaped structure 17 and an L-shaped structure 18 are provided on the transition element 8 where the elastic slot member 10 is located. The opening of the C-shaped structure 17 faces the plug-in 14, and mounting connection holes are provided on the upper and lower side walls of the C-shaped structure 17. The first connecting post 15 and the second connecting post 16 are connected to the mounting connection holes correspondingly, and the lower side wall of the C-shaped structure 17 is connected and fixed to the transition element 8. The vertical section of the L-shaped structural component 18 is adjustablely connected to the vertical bending section of the first conductive plate 11 by bolts, and the horizontal section of the L-shaped structural component 18 is connected to the transition element 8. In this way, the first conductive plate 11 and the second conductive plate 12 are fixed as a whole, and the overall height of the first conductive plate 11 and the second conductive plate 12 can be adjusted so that the gap corresponds to the height position of the plug-in 14.

[0036] Specifically, for example, in some embodiments, the first connecting post 15 and the second connecting post 16 have external threads, thereby enabling an adjustable fixed connection or limiting connection (limiting the maximum and / or minimum size of the gap) between the first conductive plate 11, the second conductive plate 12, and the C-shaped structural member 17 by setting nuts; as another example, in other embodiments, the first connecting post 15 and the second connecting post 16 are only inserted into the mounting connection hole, serving as an auxiliary positioning function for the first conductive plate 11 and the second conductive plate 12 during the insertion and removal of the plug 14. In some embodiments, the vertical bending sections of the first conductive plate 11 and the second conductive plate 12 and the vertical section of the L-shaped structural member 18 are fixed by the same set of bolts. The plug 14 is, for example, a conductive plate-like structure, preferably with chamfered edges to facilitate sliding into the gap between the first conductive plate 11 and the second conductive plate 12. The thickness of the plug 14 is equal to or slightly greater than the gap size. In the illustrated embodiment, the plug-in 14, the C-shaped structural member 17, and the L-shaped structural member 18 are connected and fixed to the corresponding transition element 8 via corresponding positioning blocks, so that the plug-in 14 and the elastic slot member 10 are positioned at a certain height above the transition element 8. Of course, the positioning blocks do not contact each other. In the conductive connection state, only the plug-in 14 and the elastic slot member 10 are connected, so that the movable busbar 1 and the fixed busbar 2 are electrically connected.

[0037] More specifically, in the illustrated embodiment, the resilient slot 10 is connected to the transition element 8 of the fixed busbar 2, and the plug 14 is connected to the transition element 8 of the movable busbar 1. The plug 14 has a relatively simpler and lighter structure, making it more suitable for installation on moving parts. The direction of the insertion guide 13 corresponds to the overall operation of the device, for example... Figure 1 , Figure 2 When the connection is disconnected, the cantilever 4 rotates to the right, and the plug-in 14 moves out of the elastic slot 10 to the right. When the connection is restored, the process is reversed, and the plug-in 14 moves into the elastic slot 10 to the left. Therefore, the insertion guide 13 faces to the right, corresponding to the position where the plug-in 14 enters.

[0038] Please see Figure 2 , Figure 3At the end of the cantilever 4 furthest from the cantilever base 6, an insulator 19 and a positioning clamp connecting plate 20 are sequentially arranged, with the positioning clamp connecting plate 20 rotatably connected to the positioning clamp 3. More specifically, for example, a column is connected above the positioning clamp 3, and the positioning clamp connecting plate 20 has a through hole through which the column passes, with a nut on the column for limiting its position, thus forming a rotatable connection; the positioning clamp can also be rotatable using other existing technologies or other feasible methods. Both the active and driven cantilever have the same or similar structures described above. In this embodiment, the active cantilever is equipped with a drive motor 7 and a rotating shaft 5 fixedly connected above it. The rotating shaft 5 is fixedly connected to the cantilever 4. When the drive motor 7 rotates, it drives the rotating shaft 5 to rotate the cantilever 4, the insulator 19, the positioning clamp connecting plate 20, the positioning clamp 3, and the moving busbar 1. The driven cantilever does not require a drive device. It mainly rotates by applying a horizontal rotational force to the moving busbar 1 when the active cantilever rotates, thereby driving the driven cantilever to rotate. The active cantilever and the driven cantilever together realize the smooth movement of the moving busbar 1.

[0039] Preferably, please refer to Figure 2 On the mobile busbar 1, a grounding clamp 21 is also installed next to the positioning clamp 3, and the grounding clamp 21 is grounded. More specifically, a grounding clamp 21 is installed on both sides of each positioning clamp 3, and the grounding clamp 21 is installed and connected to the mobile busbar 1. The grounding clamp 21 forms a strong grounding device on the movable contact network. Its design is simple, can be adjusted according to the conductor height, and can realize the discharge of the contact network to avoid residual electricity.

[0040] Preferably, the cantilever 4 and / or the cantilever base 6 are provided with anti-collision devices 22 to buffer the impact after rotation into position, preventing the cantilever 4 from colliding with other components or the tunnel wall and causing damage. For example Figure 2 , Figure 3 As shown, the anti-collision device 22 is a buffer pad installed on the cantilever base 6, and its position is close to the end of the cantilever base 6. In this embodiment, in the conductive connection state, the cantilever 4 is perpendicular to the tunnel wall. When disconnecting, the cantilever 4 rotates approximately 90° to the right in the figure. The anti-collision device 22 corresponds to this rotated position and buffers and limits the cantilever 4, which helps to facilitate a faster disconnection process. More preferably, as shown in the figure... Figure 7 As shown, a collision avoidance device 22 is also provided at the corresponding position on the other side of the cantilever 4 in the conductive connection state, so as to provide a buffering and limiting effect during the restoration process.

[0041] Preferably, limit switches 23 are provided on the cantilever 4, the rotating shaft 5, and / or the cantilever base 6. The limit switches 23 are connected to the drive motor 7 or the overall control system of the device to stop the drive motor 7 after it has rotated to a set position. For example… Figure 2 , Figure 7As shown, limit switches 23 are mounted on the cantilever bases 6 on both sides of the active cantilever. Limit switches 23 have trigger rods corresponding to the connected and disconnected states. When the cantilever 4 moves to the corresponding position, the cantilever 4 touches the trigger rod of the limit switch 23, indicating that it has rotated to the correct position. The limit switch 23 then sends a signal to de-energize the drive motor 7, thus controlling the rotation angle of the cantilever 4. It is conceivable that in some other embodiments, the limit switch 23 may also be selected as other types of sensors.

[0042] In one specific embodiment, the two fixed busbars 2 at both ends of the movable busbar 1 are located on both sides of a door, which is a flood-proof door or a civil defense door. The first position of the limit switch 23 corresponds to the state after the cantilever 4 rotates to the point where the movable busbar 1 is disconnected from the fixed busbar 2, and the movable busbar 1 provides sufficient space for the door to close. The second position of the limit switch 23 corresponds to the state after the cantilever 4 rotates to the point where the movable busbar 1 and the fixed busbar 2 are electrically connected. A control system is also included, connected to the limit switch 23 and the door's drive system. The control system, for example, mainly consists of a PLC programmable controller or relays and related devices. The control system is used to control the operation of this device and to achieve a safety interlock between the door and the movable busbar. When disconnecting, first ensure that the movable busbar and other contact network equipment have been rotated and moved to the required position, then start the door and close it. The restoration process is similar: first ensure that the door is open, then rotate and move the movable busbar to reconnect. This solution enables remote and local operation, ensuring that the movable contact network does not malfunction and avoiding interference with train operation.

[0043] In summary, the rigid contact wire rotary disconnection device of this utility model can realize the disconnection and restoration of the contact wire at the personnel protection door or flood protection door through electric control, such as remote operation. Similar products can only realize the disconnection of the mobile contact wire at the personnel protection door or flood protection door through remote operation. The restoration of the mobile contact wire requires professional technicians to restore it on-site after a disaster or after the mobile contact wire is de-energized. This requires a high level of skill from the operators. When the busbar is severely corroded, it can easily cause pantograph-contact wire accidents. Common disconnectable joint devices are heavy and prone to sagging and hard spots. The electrical connection device in this solution adopts a through-type, busbar-like terminal structure, including two transition elements, preferably aluminum alloy transition elements, which can realize the smooth passage of the pantograph and avoid arcing. It also adopts an arc-angle contact method, similar to the design of an intermediate joint, with a specific angle arc design at the front end, which can form a small anchor joint structure during use, further ensuring the smooth passage of the pantograph. It also includes elastic slot parts and plugs, which use elasticity to ensure contact effect and are relatively lightweight, avoiding the formation of hard spots.

Claims

1. A rigid catenary rotating disconnecting device, characterized in that, It includes a movable busbar (1), and fixed busbars (2) are respectively provided at both ends of the movable busbar (1); the movable busbar (1) is rotatably connected to the cantilever (4) through the positioning clamp (3), and the cantilever (4) consists of multiple cantilevers distributed along the length of the movable busbar (1). At the end of the cantilever (4) away from the movable busbar (1), a cantilever base (6) is rotatably connected to it through a vertical rotating shaft (5); at least one of the cantilever (4) has a drive motor (7) connected to the rotating shaft (5). Electrical connection devices are provided at both ends of the movable bus (1) and the fixed bus (2); each electrical connection device includes two matching transition elements (8), which are connected to the movable bus (1) and the fixed bus (2) respectively. The two transition elements (8) are bent in opposite directions in the horizontal direction to be misaligned. A transition element clamp (9) for holding the contact wire is provided at the bottom of the transition element (8), and the end of the bottom of the transition element (8) is raised so that the contact wire is raised at the end of the transition element (8). Each electrical connection device also includes matching elastic slot pieces (10) and plugs (14). The elastic slot pieces (10) and plugs (14) can move relative to each other in the horizontal direction to make contact and conduct electricity or to separate and disconnect. One of the elastic slot pieces (10) and plugs (14) is connected to the transition element (8) of the movable bus (1), and the other is connected to the transition element (8) of the fixed bus (2).

2. The rigid catenary rotating disconnect device of claim 1, wherein, The elastic slot member (10) includes a first conductive plate (11) and a second conductive plate (12) that are elastic. The first conductive plate (11) and the second conductive plate (12) are arranged opposite each other and have a gap between them. The first conductive plate (11) and the second conductive plate (12) are bent opposite each other on one side to form a plug guide (13). The plug (14) can enter and exit the gap between the first conductive plate (11) and the second conductive plate (12) through the plug guide (13) to contact the elastic slot member (10) for conduction or to separate and disconnect.

3. The rigid catenary rotating disconnect device of claim 2, wherein, The first conductive plate (11) is located above the second conductive plate (12). Both the first conductive plate (11) and the second conductive plate (12) have a vertically bent section at the end away from the insertion guide (13). The vertically bent section of the first conductive plate (11) and the vertically bent section of the second conductive plate (12) are connected to each other in an adjustable manner by bolts.

4. The rigid catenary rotating disconnect device of claim 3, wherein, A first connecting post (15) extends upward above the first conductive plate (11), and a second connecting post (16) extends downward below the second conductive plate (12). A C-shaped structural member (17) and an L-shaped structural member (18) are provided on the transition element (8) where the elastic slot member (10) is located. The opening of the C-shaped structural member (17) faces the plug-in (14). Mounting connection holes are provided on the upper and lower side walls of the C-shaped structural member (17). The first connecting post (15) and the second connecting post (16) are connected to the mounting connection holes respectively. The lower side wall of the C-shaped structural member (17) is connected to the transition element (8). The vertical section of the L-shaped structural member (18) is adjustablely connected to the vertical bending section of the first conductive plate (11) by bolts. The horizontal section of the L-shaped structural member (18) is connected to the transition element (8).

5. Rigid catenary rotating disconnecting device according to any of claims 1-4, characterized in that The flexible slot piece (10) is connected to the transition element (8) of the fixed bus (2), and the plug (14) is connected to the transition element (8) of the movable bus (1).

6. Rigid catenary rotating disconnecting device according to any of claims 1-4, characterized in that An insulator (19) and a positioning clamp connecting plate (20) are sequentially provided at the end of the cantilever (4) away from the cantilever base (6). The positioning clamp connecting plate (20) is rotatably connected to the positioning clamp (3).

7. Rigid catenary rotating disconnecting device according to any of claims 1-4, characterized in that On the mobile busbar (1), a ground wire clamp (21) is also provided next to the positioning clamp (3), and the ground wire clamp (21) is grounded.

8. Rigid catenary rotating disconnecting device according to any of claims 1-4, characterized in that Anti-collision devices (22) are provided on the cantilever (4) and / or the cantilever base (6).

9. Rigid catenary rotating disconnecting device according to any of claims 1-4, characterized in that Limit switches (23) are provided on the cantilever (4), the pivot (5) and / or the cantilever base (6).

10. The rigid catenary rotating disconnect device of claim 9, wherein, The two fixed busbars (2) at both ends of the movable busbar (1) are located on both sides of the door, which is a flood-proof door or a civil defense door; the first position of the limit switch (23) corresponds to the state after the cantilever (4) rotates to the point where the movable busbar (1) is disconnected from the fixed busbar (2) and the movable busbar (1) leaves enough space for the door to close; the second position of the limit switch (23) corresponds to the state after the cantilever (4) rotates to the point where the movable busbar (1) is electrically connected to the fixed busbar (2); it also includes a control system, which is connected to the limit switch (23) and the door drive system.

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