Quick disconnecting type disconnecting device for rigid contact network

Abstract

The utility model discloses a quick disconnecting type disconnecting device for a rigid contact network. The quick disconnecting type disconnecting device comprises a first fixed busbar, a second fixed busbar and a movable busbar, an electric connection device is arranged between the first fixed busbar and the movable busbar, and an electric connection device is arranged between the movable busbar and the second fixed busbar; the first fixed busbar is hinged with the movable busbar; the movable busbar is provided with a movable busbar second wire clamp, the movable busbar second wire clamp is provided with a lower connecting part, the upper portion of the lower connecting part is in threaded connection with an upper connecting part, the upper connecting part is rotatably connected with the busbar suspension supporting structure, and the upper connecting part is connected with a driving motor. The rotating axis of the upper connecting part coincides with the axes of the threads of the upper connecting part and the lower connecting part. According to the scheme, the motor is adopted to drive the threads to be screwed in and screwed out, the structure stability under normal conditions can be guaranteed, rapid triggering under emergency conditions can be guaranteed, and the recovery process is easy to operate.

Description

A quick-disconnection device for rigid contact wires Technical Field

[0001] This utility model belongs to the technical field of rigid contact wire switching devices, specifically relating to a rapid disconnection device for rigid contact wires. Background Technology

[0002] Currently, for example, 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 have two closing mechanisms: drop-down and swing-top. These doors are normally open and have a rigid contact wire busbar passing through them. When an emergency occurs requiring the closure of the blast door or blast door, the rigid contact wire busbar will cause mechanical interference.

[0003] Currently, the rigid automatic disconnectable connector structures used under floodgates or air-raid shelters are quite complex. Their operation, for example, involves horizontal release followed by a vertical drop. After use, specialized personnel must be on-site to restore them, and the electrical connection components must be precisely aligned during the restoration process. This method is not conducive to the rapid and smooth closing of air-raid shelters or floodgates in emergencies, nor to routine maintenance, inspection, and trial operation. The reliability of the equipment cannot be guaranteed in critical moments. Furthermore, the electric equipment itself is heavy, and the disconnectable section lacks suspension support, easily causing hard spots. Uneven transitions between the fixed and disconnectable sections can lead to arcing when the pantograph passes at high speed. The arcing effect can easily damage and corrode the equipment, reducing its reliability and causing abnormal electrical wear on the pantograph's carbon contact plate. Additionally, some existing structures, when used in larger swing-type air-raid shelters or floodgates, cannot completely avoid the radius of the swing-turn structure, or may damage the through-type electrical connection components. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a rigid contact wire quick disconnection device, which solves the problems of complex structure and insufficient speed of disconnection and reset process of existing devices, and achieves the beneficial technical effects of quick disconnection in emergency situations and simple operation of the reset process.

[0005] According to the technical solution of this utility model, this utility model provides a rigid contact wire quick disconnection device, including a first fixed busbar, a second fixed busbar, and a movable busbar located between the first fixed busbar and the second fixed busbar; electrical connection devices are provided between the first fixed busbar and the movable busbar, and between the movable busbar and the second fixed busbar, each electrical connection device including a matching stationary contact and a moving contact, the stationary contact and the moving contact being able to slide relative to each other in the vertical direction to make contact for conduction or to separate and disconnect; the first fixed busbar and the movable busbar are hinged; the movable busbar is provided with a movable busbar second clamp, the movable busbar second clamp having a lower connecting part, and an upper connecting part being threadedly connected to the upper connecting part, the upper connecting part being rotatably connected to the busbar suspension support structure, the upper connecting part being connected to a drive motor, and the rotation axis of the upper connecting part coinciding with the axis of the threads of the upper connecting part and the lower connecting part.

[0006] Furthermore, the first fixed busbar is provided with a support device at one end near the movable busbar, and the support device is hinged to the first clamp of the movable busbar, which is connected to the end of the movable busbar near the first fixed busbar.

[0007] Furthermore, the support device has a side arm extending toward the movable busbar, the end of which is pivotally connected to the first clamp of the movable busbar via a transverse pin.

[0008] Furthermore, the second clamp of the movable bus is located at one end of the movable bus near the second fixed bus, and the support device has a vertical clearance space that allows the electrical connection device at the end of the movable bus to pass through.

[0009] Furthermore, a motor mounting base is provided on the busbar suspension support structure, and the drive motor is mounted on the motor mounting base and is connected to the upper connecting part for transmission.

[0010] Furthermore, an insulator is provided between the second clamp of the movable busbar and the busbar suspension support structure;

[0011] In some embodiments, the insulator is fixedly connected above the second clamp of the movable busbar, the upper end of the insulator has a screw, the screw is the lower connecting part, and the lower end of the output shaft of the drive motor has a threaded hole, the threaded hole is the upper connecting part;

[0012] Alternatively, in some other embodiments, the insulator is fixedly connected to the lower end of the output shaft of the drive motor, the lower end of the insulator has a screw, the screw is the upper connecting part, and the upper end of the second clamp of the movable busbar has a threaded hole, the threaded hole is the lower connecting part.

[0013] Furthermore, the electrical connection device includes a first contact and a second contact; in a matching set of stationary and moving contacts, one of the first and second contact is a stationary contact and the other is a moving contact; the first contact includes two elastic conductive plates, which are arranged opposite each other with a gap between them, and the two conductive plates are bent outward at one side to form a plug-in guide opening; the second contact is a conductive plate, which can enter and exit the gap of the first contact through the plug-in guide opening to make contact with the first contact for conduction or to separate and disconnect.

[0014] Furthermore, the electrical connection device also includes a curved transition element, which is disposed at the end of the first fixed bus, the movable bus, and the second fixed bus, forming an overlap area between the first fixed bus and the movable bus, and between the movable bus and the second fixed bus, and the adjacent transition elements are staggered; the bottom of the transition element has a clamp for holding the contact wire, and the end of the transition element has an upturned structure.

[0015] Furthermore, a matching set of stationary and moving contacts are connected to two adjacent transition elements respectively.

[0016] Furthermore, the first fixed busbar is connected to the first busbar suspension support structure via a first fixed busbar clamp, and the second fixed busbar is connected to the second busbar suspension support structure via a second fixed busbar clamp; under normal power-on conditions, the first fixed busbar, the movable busbar, and the second fixed busbar are located in the same straight line.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] 1. The rigid contact wire quick-disconnection device of this utility model adopts a motor-driven threaded connection method, which can ensure structural stability under normal power supply and can be quickly triggered in emergency situations. The motor-driven rotation separates the support structure at the suspension point of the movable busbar from the clamp, enabling rapid disconnection of the mobile contact wire at the air-raid shelter door or floodproof door through remote and local operation. Disconnecting the contact wire at the air-raid shelter door or floodproof door disconnects the busbar connection, allowing the closing gap of the floodproof door or air-raid shelter door to keep the tunnel closed. This meets the closing radius requirements of the drop-type and swing-type air-raid shelter door or floodproof door, and more timely and effectively avoids large-scale personal injury and property damage caused by floods entering the tunnel and station due to accidents at the subway floodproof door or air-raid shelter door, protecting the safety of underground equipment and personnel.

[0019] 2. The rigid contact wire quick disconnection device of this utility model has a simple structure and adopts a drop-down structure with the wire clamp and the connecting busbar, which makes the restoration process simple to operate and only requires simple training for operators to learn how to operate.

[0020] 3. In the rigid contact wire quick disconnection device of this utility model, the drive motor structure is designed to be fixed through the tunnel wall, avoiding the self-weight of this positioning point and avoiding the generation of hard points.

[0021] 4. In the rigid contact network quick disconnection device of this utility model, the through-type electrical connection device adopts a busbar terminal structure, but it is a special product with a length and volume much smaller than the busbar terminal. It has two transition elements, which can ensure that the train pantograph passes smoothly through the rigid contact network quick disconnection device without arcing.

[0022] 5. In the electrical connection device of the rigid contact wire quick disconnection device of this utility model, the first contact piece adopts an elastic conductive plate to form a spring structure, which can be adapted to the insertion of second contact pieces (inserts) of different thicknesses. At the same time, when the moving contact and the stationary contact are combined together, the contact surface is more tightly combined, which is more suitable for the passage of current and is less likely to cause adverse effects such as electric arc due to improper setting. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of the device provided by this utility model.

[0024] Figure 2 is a structural schematic diagram of the right side of the structure shown in Figure 1 from another angle.

[0025] Figure 3 is a structural schematic diagram of some components in the structure shown in Figure 2 from another angle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. First fixed busbar; 11. Support device; 2. Second fixed busbar; 3. Movable busbar; 31. First clamp of movable busbar; 32. Second clamp of movable busbar; 4. Busbar suspension support structure; 41. Drive motor; 42. Insulator; 43. Output shaft; 51. First contact element; 52. Second contact element; 53. Transition element. Detailed Implementation

[0028] This utility model provides a rigid contact wire quick disconnection device, which solves the problems of complex structure and slow disconnection and reset process of existing devices, and achieves the beneficial technical effects of quick disconnection in emergency situations and simple operation of the reset process.

[0029] Please refer to Figures 1 to 3. This utility model discloses a quick-disconnection device for rigid contact wires, similar to existing technologies, comprising a first fixed busbar 1, a second fixed busbar 2, and a movable busbar 3 located between the first fixed busbar 1 and the second fixed busbar 2. The two ends of the first fixed busbar 1 and the second fixed busbar 2 are further connected to other busbars to form an integral contact wire. Taking its application in a tunnel's air-raid shelter or flood-proof door as an example, the first fixed busbar 1 and the second fixed busbar 2 are located on the front and rear sides of the door, respectively. Under normal circumstances, the air-raid shelter or flood-proof door is always open, and the first fixed busbar 1 and the second fixed busbar 2 are connected by the movable busbar 3. In an emergency, the movable busbar 3 can disconnect and move to create sufficient space for the door to close.

[0030] In this scheme, electrical connection devices are provided between the first fixed busbar 1 and the movable busbar 3, and between the movable busbar 3 and the second fixed busbar 2. Each electrical connection device includes a matching pair of stationary contacts and moving contacts. The stationary contacts and moving contacts can slide relative to each other in the vertical direction to make contact and conduct electricity or to separate and disconnect. For example, one of the stationary contacts and moving contacts is an elastic structure and the stationary contacts and moving contacts can be plugged into each other.

[0031] The first fixed busbar 1 and the movable busbar 3 are hinged together. The movable busbar 3 and the second fixed busbar 2 can be disconnected. Under normal circumstances, the movable busbar 3 is flush with and connected to the first fixed busbar 1 and the second fixed busbar 2. In an emergency, the movable busbar 3 and the second fixed busbar 2 are disconnected. Under its own weight, the movable busbar 3 rotates and droops around the hinged position with the first fixed busbar 1.

[0032] The movable busbar 3 has a second clamp 32 at a location different from the hinged position. The second clamp 32 has a lower connecting part, and an upper connecting part is threadedly connected above the lower connecting part. The upper connecting part is rotatably connected to the busbar suspension support structure 4, such as a suspension column in a tunnel. The upper connecting part is connected to a drive motor 41. The rotation axis of the upper connecting part coincides with the axis of the threads of the upper and lower connecting parts, for example, both are vertical and collinear. Thus, under normal circumstances, the movable busbar 3 is suspended and fixed by this threaded connection structure, which can be regarded as a suspension support device, and together with the hinged position, it achieves stable support for the movable busbar 3. In an emergency, the drive motor 41 drives the threaded structure to unscrew and separate, and the movable busbar 3 will disconnect from the second fixed busbar 2 and droop under the action of gravity.

[0033] This single-sided hinged structure is well-suited for various types of air-raid shelter doors or flood-proof doors. Sufficient closing space is ensured by adjusting the length of the movable busbar 3 and the position of the disconnecting device relative to the door. Furthermore, existing solutions employ relatively complex structures for stable connection and drive disconnection, hindering rapid disconnection and reset operations. This solution features simpler electrical and threaded connection structures, effectively improving the efficiency of disconnection and reset.

[0034] More specifically, the first fixed busbar 1 has a support device 11 at one end near the movable busbar 3. The support device 11 is hinged to a first clamp 31 of the movable busbar, which is connected to the end of the movable busbar 3 near the first fixed busbar 1. A second clamp 32 of the movable busbar is located on the movable busbar 3 near the second fixed busbar 2. The support device 11 has a vertically penetrating clearance space that allows electrical connection devices at the end of the movable busbar 3 to pass through. For example, the support device 11 is made of channel steel with holes. The support device 11 is fixed to the end of the busbar by a clamping plate. The support device 11 has a side arm (side plate of the channel steel) extending toward the movable busbar 3. The end of the side arm has a transverse through hole, which is pivotally connected to the first clamp 31 of the movable busbar by a transverse pin to achieve the aforementioned rotation function. The movable busbar first clamp 31, which can form a hinged connection with the pin, is prior art, for example, the rotatable positioning clamp structure shown in Chinese Utility Model Patent No. CN217544963U.

[0035] The busbar suspension support structure 4 is equipped with a motor mounting base, and the drive motor 41 is mounted on the motor mounting base. The drive motor 41 is connected to the upper connecting part for transmission. The drive motor 41 has, for example, a gearbox and an output shaft. The busbar suspension support structure 4 is a structure that is directly fixed to fixed components such as tunnel walls or supports. The weight of the drive motor 41, etc., is borne by the busbar suspension support structure 4, which will not cause hard points to be generated in the contact wire busbar.

[0036] An insulator 42 is typically also provided between the movable busbar second clamp 32 and the busbar suspension support structure 4. In some embodiments, the insulator 42 is fixedly connected above the movable busbar second clamp 32, and the upper end of the insulator 42 has a screw, which serves as the lower connecting part. The lower end of the output shaft 43 of the drive motor 41 has a threaded hole (e.g., a blind hole), which serves as the upper connecting part. Thus, during operation, the insulator 42, the movable busbar 3, and the movable busbar second clamp 32 are essentially connected as a whole, and fall together during disconnection.

[0037] Alternatively, in some embodiments, the insulator 42 is fixedly connected to the lower end of the output shaft 43 of the drive motor 41. The lower end of the insulator 42 has a screw, which is the upper connecting part. The upper end of the movable busbar second clamp 32 has a threaded hole, which is the lower connecting part. Unlike the previous embodiments, in this embodiment, the insulator 42 is always located at the output end of the drive motor 41 and does not fall. Only the movable busbar 3 and the movable busbar second clamp 32 fall and separate. It is understood that the upper and lower connecting parts can also be implemented in various other ways.

[0038] More specifically, in the embodiment shown in Figure 3, the upper part of the second clamp 32 of the movable busbar is a thin plate with threaded holes for connecting the screw at the lower end of the insulator 42. The stroke of this threaded connection is short, and the requirements for the hinge structure of the movable busbar 3 are low. It can be selected as a clearance fit with a certain amount of movement. Therefore, the threaded fit will not be difficult to screw in or out due to the arc displacement of the lower connecting part. Alternatively, the second clamp 32 of the movable busbar can be rotatable and connected to the lower connecting part (such as a hinge) to form a sufficient range of movement, thereby ensuring the smooth screwing in and out of the threaded fit.

[0039] The stationary and moving contacts of the electrical connection device are preferably made of copper, which has good conductivity and elasticity, enabling a quick-connection electrical connection of the contact network disconnection device by inserting the elastic end into the other end. Referring to Figures 2 and 3, in a preferred embodiment, the electrical connection device includes a first contact member 51 and a second contact member 52. In a matching set of stationary and moving contacts, one of the first contact member 51 and the other of the second contact member 52 is a stationary contact and the other is a moving contact. The first contact member 51 includes two elastic conductive plates, which are arranged opposite each other with a gap between them. The two conductive plates are bent outwards at one side to form a insertion guide opening. The second contact member 52 is a conductive plate that can enter and exit the gap of the first contact member 51 through the insertion guide opening to make contact with the first contact member 51 for conduction or to separate and disconnect. More specifically, the gap of the first contact member 51 is smaller than the thickness of the second contact member 52, thereby ensuring contact effectiveness through elasticity. The second contact 52 has a gradually decreasing thickness on one side facing the insertion guide, which makes the insertion process easier.

[0040] For the electrical connection device between the movable busbar 3 and the second fixed busbar 2, the moving contact is located on the movable busbar 3 and is the upward-facing second contact 52; the stationary contact is located on the second fixed busbar 2 and is the downward-facing first contact 51 with the insertion guide opening facing downward. The positional relationship between the first contact 51 and the second contact 52 satisfies the requirement that they can make contact and conduct electricity when the movable busbar 3 and the second fixed busbar 2 are flush. Preferably, when the upper and lower connecting parts are about to separate, the second contact 52 and the first contact 51 have already separated or are in contact with minimal or no pressure. In other words, when disconnecting, the second contact 52 is first pushed downward to move away from or about to leave the first contact 51 through the threaded engagement, and then the threads are completely separated (and optionally, the upper connecting part is configured to continue rotating for a period of time after the threads have theoretically separated, so as to ensure complete separation between the upper and lower connecting parts). Therefore, even if the elastic clamping force of the first contact 51 is large, it will not affect the smooth separation of the movable busbar 3.

[0041] For the electrical connection device between the movable busbar 3 and the first fixed busbar 1, the moving contact is located on the movable busbar 3 and is a first contact member 51 with the insertion guide facing downwards; the stationary contact is located on the second fixed busbar 2 and is a second contact member 52 with the direction facing upwards; during the disconnection process, the end where the moving contact is located rotates upwards, passes through the clearance space of the support device 11, and completes the separation from the stationary contact. Other optional specific settings are the same as or similar to the above. It is understood that there are multiple options for the setting of the stationary and moving contacts, as long as they do not obstruct the rotation and drooping of the movable busbar 3.

[0042] In a preferred embodiment, the electrical connection device further includes curved transition elements 53, which are also arranged in pairs, matching each other front and back, or can be described as forming transition joints at the electrical connection device. Specifically, each transition joint consists of two aluminum alloy transition elements. The transition elements 53 are located at the ends of the first fixed busbar 1, the movable busbar 3, and the second fixed busbar 2, for example, they are matched and inserted into the cavity of the busbar profile and fixed to the busbar profile by bolts, ensuring tight contact. The transition elements 53 form overlapping areas between the first fixed busbar 1 and the movable busbar 3, and between the movable busbar 3 and the second fixed busbar 2, and because the transition elements 53 have a curved structure, adjacent transition elements 53 are staggered. The bottom of the transition element 53 has a clamp for holding the contact wire (the clamp is not shown in the figure, only the bolt holes for fixing the clamp are shown), and the end of the transition element 53 has an upward-curved structure, hence it can also be called an arc-angle contact. This forms a compact anchor joint, achieving a smooth transition of the pantograph.

[0043] The transition element 53 in this solution is similar to the structure and function of existing busbar anchor joints or expansion joints, and has the ability to make a smooth transition, thereby avoiding arcing problems. However, it is much smaller in length and volume than existing busbar terminals. It is a specially made product that matches the first fixed busbar 1, the movable busbar 3, and the second fixed busbar 2.

[0044] Furthermore, a matching set of stationary and moving contacts are respectively connected to two adjacent transition elements 53. More specifically, in order to ensure the positional relationship between the stationary and moving contacts, in the illustrated embodiment, the first contact element 51 also has an inverted L-shaped conductive connection structure to achieve the insertion guide opening facing downward and corresponding to the second contact element 52.

[0045] As a further explanation, the first fixed busbar 1 is connected to the first busbar suspension support structure via a first fixed busbar clamp, and the second fixed busbar 2 is connected to the second busbar suspension support structure via a second fixed busbar clamp. The busbar suspension support structure 4, the first busbar suspension support structure, and the second busbar suspension support structure are fixed to the tunnel wall or other fixed structures around the contact network. Under normal power-on conditions, the first fixed busbar 1, the movable busbar 3, and the second fixed busbar 2 are located on the same straight line. In other words, the quick-disconnect contact network device is at the same height as the contact network.

[0046] Optionally, the control system of this device has mechanical and electrical safety measures, such as reliable deceleration measures (e.g., buffer structure) to prevent the busbar from swinging after it disconnects and droops, electrical measures including the ability of the motor and control device to quickly cut off power and stop in an emergency, and reliable logic interlocking with the air-raid shelter or flood door.

[0047] In summary, the rigid contact wire quick-disconnection device of this utility model adopts a motor-driven threaded connection method, which ensures structural stability under normal power supply and allows for rapid triggering in emergencies. The motor-driven rotation separates the support structure at the suspension point of the movable busbar from the clamp, enabling rapid disconnection of the mobile contact wire at the air-raid shelter or flood-proof door via remote or local operation. Disconnecting the contact wire at the air-raid shelter or flood-proof door disconnects the busbar connection, creating a closing gap for the flood-proof door or air-raid shelter, keeping the tunnel closed. This meets the closing radius requirements for drop-type and swing-type air-raid shelter or flood-proof doors, and more promptly and effectively prevents floodwater from entering the tunnel and station at the subway flood-proof door or air-raid shelter due to accidents, thus protecting underground equipment and personnel. The solution is comprehensive; its structure is streamlined and adopts a drop-down structure where the wire clamp and busbar are connected, making the restoration process simple and requiring only basic training for operators. The drive motor structure is designed to be fixed through the tunnel wall, avoiding the self-weight of this positioning point and preventing the formation of hard spots. The through-type electrical connection device adopts a busbar-like terminal structure with two transition elements, ensuring that the train pantograph passes smoothly through the rigid contact network and the quick disconnection device does not cause arcing. In the electrical connection device, the first contact piece uses an elastic conductive plate to form a spring structure, which can accommodate the insertion of second contact pieces (inserts) of different thicknesses. At the same time, when the moving and stationary contacts are combined, the contact surface is more tightly joined, which is more suitable for current flow and less likely to cause arcing or other adverse effects due to improper setting.

Claims

1. A quick-disconnection device for rigid contact wires, characterized in that, It includes a first fixed busbar (1), a second fixed busbar (2), and a movable busbar (3) located between the first fixed busbar (1) and the second fixed busbar (2); electrical connection devices are provided between the first fixed busbar (1) and the movable busbar (3), and between the movable busbar (3) and the second fixed busbar (2), and each electrical connection device includes a matching stationary contact and a moving contact, the stationary contact and the moving contact being able to slide relative to each other in the vertical direction to make contact with the conductor. Electrical or phase separation disconnection; the first fixed busbar (1) and the movable busbar (3) are hinged; the movable busbar (3) is provided with a movable busbar second clamp (32), the movable busbar second clamp (32) has a lower connecting part, the upper connecting part is threadedly connected to the upper connecting part, the upper connecting part is rotatably connected to the busbar suspension support structure (4), the upper connecting part is connected to a drive motor (41), and the rotation axis of the upper connecting part coincides with the axis of the threads of the upper connecting part and the lower connecting part.

2. The rigid contact wire quick-disconnection device according to claim 1, characterized in that, The first fixed busbar (1) has a support device (11) at one end near the movable busbar (3). The support device (11) is hinged to the first clamp (31) of the movable busbar. The first clamp (31) of the movable busbar is connected to the end of the movable busbar (3) near the first fixed busbar (1).

3. The rigid contact wire quick-disconnection device according to claim 2, characterized in that, The support device (11) has a side arm extending toward the movable busbar (3), the end of which is pivotally connected to the first clamp (31) of the movable busbar via a transverse pin.

4. The rigid contact wire quick-disconnection device according to claim 2, characterized in that, The second clamp (32) of the movable bus is located on one end of the movable bus (3) near the second fixed bus (2), and the support device (11) has a vertical clearance space that allows the electrical connection device at the end of the movable bus (3) to pass through.

5. The rigid contact wire quick-disconnection device according to claim 1, characterized in that, A motor mounting base is provided on the busbar suspension support structure (4), and the drive motor (41) is mounted on the motor mounting base. The drive motor (41) is connected to the upper connecting part for transmission.

6. The rigid contact wire quick-disconnection device according to claim 1, characterized in that, An insulator (42) is provided between the second clamp (32) of the movable busbar and the busbar suspension support structure (4); the insulator (42) is fixedly connected above the second clamp (32) of the movable busbar, and the upper end of the insulator (42) has a screw, which is the lower connecting part, and the lower end of the output shaft (43) of the drive motor (41) has a threaded hole, which is the upper connecting part; or, the insulator (42) is fixedly connected to the lower end of the output shaft (43) of the drive motor (41), and the lower end of the insulator (42) has a screw, which is the upper connecting part, and the upper end of the second clamp (32) of the movable busbar has a threaded hole, which is the lower connecting part.

7. The rigid contact wire quick-disconnection device according to any one of claims 1-6, characterized in that, The electrical connection device includes a first contact (51) and a second contact (52); in a matching set of stationary and moving contacts, one of the first contact (51) and the other of the second contact (52) is a stationary contact and the other is a moving contact; the first contact (51) includes two elastic conductive plates, which are arranged opposite each other and have a gap between them, and the two conductive plates are bent outward at one side to form a plug-in guide; the second contact (52) is a conductive plate, and the second contact (52) can enter and exit the gap of the first contact (51) through the plug-in guide to make contact with the first contact (51) for conduction or to separate and disconnect.

8. The rigid contact wire quick-disconnection device according to any one of claims 1-6, characterized in that, The electrical connection device also includes a curved transition element (53), which is disposed at the ends of the first fixed bus (1), the movable bus (3), and the second fixed bus (2), forming an overlapping area between the first fixed bus (1) and the movable bus (3) and between the movable bus (3) and the second fixed bus (2), and the adjacent transition elements (53) are staggered; the bottom of the transition element (53) has a clamp for holding the contact wire, and the end of the transition element (53) has an upturned structure.

9. The rigid contact wire quick-disconnection device according to claim 8, characterized in that, A matching set of stationary and moving contacts are connected to two adjacent transition elements (53).

10. The rigid contact wire quick-disconnection device according to any one of claims 1-6, characterized in that, The first fixed bus (1) is connected to the first bus suspension support structure through the first fixed bus clamp, and the second fixed bus (2) is connected to the second bus suspension support structure through the second fixed bus clamp; under normal power-on state, the first fixed bus (1), the movable bus (3), and the second fixed bus (2) are located on the same straight line.

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