JP6982193B2 - Rigid contact network automatic cutoff recovery device - Google Patents

Description

The present invention relates to a rigid contact network automatic cutoff / return device used in the field of subway air defense construction, and in particular, an automatic rigid contact network used for an upright rotary water-proof water-proof door or a cut-off door, an elevating type water-proof door or a cut-off door in a subway tunnel. Regarding the cutoff / recovery device.

In the track traffic of the subway in Japan, the track vehicle power supply system of the rigid contact network is widely adopted, and it is a power supply system formed by inserting the contact line into the bus bar connected to the head and tail. On the other hand, in order to ensure subway construction equipment and personal safety, it is necessary to prevent floods from entering tunnels and stations due to unexpected sudden flood disasters, and to avoid large-scale personnel injuries and property loss. It is necessary to install a flood-proof door when passing through a river and a blocking door when passing through a section tunnel. There are mainly two types of conventional water-proof doors and blocking doors, an elevating type and an upright rotation type. The elevating type water-proof door or the blocking door is a flat girder welded steel structure, respectively, and both sides are engaged with the door groove by using a guide ring, a pressing ring, and a slide guide block to enter the inside of the door groove. It slides up and down, and the water-proof door opens and closes in the tunnel to allow water to flow or shut off. Upright rotary water-proof doors and blocking doors are integrated according to the dimensions of the tunnel internal structure, and a drive mechanism holder that attaches the door body is connected to the earthen foundation on one side and is always stored on one side of the tunnel. During operation, the door body is closed by the drive of the hydraulic element, and the water-proof door opens and closes in the tunnel to allow water to flow or shut off.

Conventionally, a one-stage bus bar in a rigid contact network is attached to the operation locus of opening and closing the door body, and when closing the water-proof door or the blocking door, the bus bar of this stage is manually removed to open the door body. Ensure that it closes normally. After opening the flood-proof and shut-off doors, the busbar at this stage must be manually installed to ensure proper subway power supply. For this reason, the existence of the rigid contact network makes it impossible to close the water-proof door and the blocking door efficiently in real time, and in an emergency, it is very safe for personnel to manually cut the rigid contact network. There is a concern.

The present invention automatically interlocks with a flood-proof door or a blocking door for the purpose of improving and creating a defect or a problem existing in the background technology, and the flood-proof door or the blocking door is efficiently closed in real time. Provided is a rigid contact network automatic cutoff / return device for ensuring that the door is closed.

In order to realize the above invention, the present invention provides the following technical ideas.

Rigid contact network automatic shutoff return device, which adopts a three-stage bus bar and contact line structure, of which the two-stage bus bar and contact line are fixed to both sides of the water-proof door or the opening / closing locus of the cutoff door, respectively. The fixed bus bar is provided with a bus bar fixed end I suspension-mounted on both side tunnel walls, a bus bar fixed end II, a sliding bus bar joint, and a hinged bus bar joint. A sliding busbar joint is connected to form a one-stage fixed busbar, and a hinged busbar joint is connected to the busbar fixed end II to form another one-stage fixed busbar. The bus bar is a movable bus bar, and the movable bus bar is connected to a two-stage fixed bus bar via a sliding bus bar joint and a hinged bus bar joint, respectively. The movable bus bar can rotate up and down along a hinged bus bar joint to switch between a connected state and a disconnected state of the bus bar, and the sliding bus bar joint has the movable bus bar fixed when the bus bar is in the connected position. The movable busbar can be meshed and released so that the movable busbar is released when the busbar is in the cutoff position.

Further, the movable bus bar is provided with a strut holder, a bus bar deflection control strut, and a conductive copper cable. One end of the bus bar deflection control strut is attached to the movable bus bar by a strut holder, and the other end is a hinged bus bar joint. Movably connected to, the length can be adjusted according to the vertical deformation due to its own weight when the movable bus bar is placed horizontally, and the deflection of the movable bus bar is controlled.

Further, the sliding bus bar joint includes a first lid plate, a first conductive arm, a high-voltage insulating holder, a first pusher mechanism, a slider, a slider pin, a first fixing block, and a first. The bus bar cutoff position sensor and the first bus bar connection position sensor are provided.

Further, the outside of the sliding bus bar joint constitutes a rigid member in which two lid plates and two first conductive arms are connected via bolts and the side surfaces are closed, and the first fixing block is formed. A concave groove matching the cross section of the bus bar fixing end I is provided inside, and the first lid plate and the first conductive arm are bolted to the bus bar fixing end I via the first fixing block. , The slider is attached to the first conductive arm by a slider pin, a slide groove is opened on the side surface of the first conductive arm so as to slide the slider in the slide groove direction, and the sliders are attached to each other on the cross section of the movable bus bar. When a matching concave groove is opened and slid to the limit position once, the internal concave groove meshes with the movable bus bar and is structurally connected to the sliding bus bar joint. At this time, the three-stage bus bar is electrically operated. Maintain the connection status.

Further, the movement of the slider along the slide groove is realized by the first pusher mechanism, in which one end is connected to the slider and the other end is hinged to the high voltage insulating holder. The pusher mechanism has a worm gear structure, and a pulling operation is performed by a manual drive method or a method driven by a first drive motor.

Further, a first bus bar cutoff position sensor and a first bus bar connection position sensor are attached to the sliding bus bar joint, and the first bus bar cutoff position sensor and the first bus bar connection position sensor are guided respectively. It is a formula sensor, the receiving end of which is attached to the first fixing block and the first lid plate via the insulating bracket, respectively, and the guiding end thereof is attached to the slider on the slider via the insulating bracket. The bus bar cutoff position sensor 1 and the first bus bar connection position sensor can detect the position of the slider with respect to the first conductive arm, and can recognize the connection cutoff state between the movable bus bar and the sliding bus bar joint.

Further, the hinge type bus bar joint includes a second conductive arm, a hinge pin, a rotating block, a second fixing block, a second lid plate, a first holder, a second pusher mechanism, and the like. It includes a second holder, a second bus bar cutoff position sensor, and a second bus bar connection position sensor.

Further, the outside of the hinge type bus bar joint constitutes a rigid member in which two second lid plates and two second conductive arms are connected via bolts and the side surfaces are closed, and the hinge type bus bar is formed. Inside the second fixing block of the joint, a concave groove matching the cross section of the bus bar fixing end II is opened, and the second lid plate and the second conductive arm are connected to the bus bar via the second fixing block. It is fixed to the fixed end II with a bolt, and the inside of the rotating block is provided with a concave groove matching the cross section of the movable bus bar, and is fixedly connected to the movable bus bar via the bolt. The rotating block is hinged to the second conductive arm via a hinge pin.

Further, the rotation of the rotating block is realized by the second pusher mechanism, in which one end is hinged to the first holder in the rotating block and the other end is hinged to the second holder. The second pusher mechanism has a worm gear structure, and a pulling operation is performed by a manual drive method or a method driven by a second drive motor.

Further, a second bus bar cutoff position sensor and a second bus bar connection position sensor are attached to the hinge type bus bar joint. The second bus bar cutoff position sensor and the second bus bar connection position sensor are inductive sensors, respectively, and the receiving end thereof is attached to the second conductive arm via an insulating bracket, and the guiding end is attached to the second conductive arm via an insulating bracket. Mounted on top of the first holder, the second busbar cutoff position sensor and the second busbar connection position sensor are capable of sensing the position of the rotating block with respect to the second conductive arm, and are movable and slideable. Recognize the connection disconnection state of the bus bar joint.

Further, the second pusher mechanism is attached with an insulating joint capable of holding electrical insulation between the second pusher mechanism and the bus bar, and the second holder is a second drive motor, a second. Use a high-voltage resistant insulating material that can guarantee electrical insulation between the pusher mechanism and the bus bar. At the same time, in order to improve the electrical conductivity between the movable bus bar and the bus bar fixed end II, a conductive copper cable is further provided, one end of which is connected to the bus bar fixed end II and the other end of which is connected to the movable bus bar. In order to avoid the ignition phenomenon due to a large current, an appropriate connection point is selected for the connection point according to the actual potential characteristics, and the potential difference that cuts off the bus bar is eliminated.

The application of the rigid contact network automatic shutoff / return device to an upright rotary flood-proof / shut-off door or an elevating type flood-proof door / cut-off door, the rigid contact network automatic shut-off / return device further includes a control system and a control system. Is connected to the open / close control system of the flood-proof door or the shut-off door, and can efficiently match the open / close operation of the flood-proof door or the shut-off door, realizes fully automated operation, and reduces the risk of personnel operation. The opening and closing time of the flood-proof door or the blocking door is also shortened.

The operating principle is as follows. When the system receives a signal that requires closing the flood-proof or shut-off door, the first drive motor of the sliding busbar joint drives the first pusher mechanism to move the slider inside it to the cutting limit position. At that time, the intermediate movable bus bar comes out of this fixed end bus bar. At the same time, the second drive motor of the hinged busbar joint drives the second pusher mechanism down the intermediate movable busbar along the other fixed end busbar until the intermediate movable busbar descends to the design limit position. Rotate to. At this time, the intermediate stage movable bus bar is completely outside the door body operation locus. After the sensor in the hinged bus bar joint detects the bus bar cutoff signal, it sends a door opening signal to the door opening / closing system, which drives the door to close until the door closing operation is completed. ..

When the system receives a full-open signal for the flood-proof or shut-off door, the second drive motor of the hinged busbar fitting drives the second pusher mechanism to move in the middle until it operates in the sliding busbar fitting device. Move the bus bar up around one fixed end bus bar. At this time, the first drive motor of the sliding bus bar joint drives the first pusher mechanism to slide the slider to the limit position and lock the intermediate stage movable bus bar. At this time, the three-stage bus bar is completely connected.

The present invention has the following technical effects on the prior art.

Compared with the prior art, the present invention can completely control the operation locus of the intermediate stage bus bar of the subway construction contact network cutting method for supplying power to the rigid contact network, and mechanically adjusts the opening / closing range of the water-proof door and the cutoff door. Don't let it fall (not free). In addition, since it is not necessary to provide a door body with different sizes due to the bus bar over-gate hole or a complicated mechanism by sealing other bus bars, the flood-proof door and the shut-off door are designed. It is simple and has good construction sealing. It has the features that the work time for shutting off the bus bar and connecting is short, no human on-site operation is required, the configuration is simple, and the safety and reliability are high.

It is a schematic diagram of the bus bar connection state of this invention. It is a schematic diagram of the bus bar fixed end I in the bus bar cutoff state of FIG. It is a schematic diagram of the bus bar fixed end II in the bus bar cutoff state of FIG. It is a sliding bus bar joint connection state at the bus bar fixed end I. It is a sliding bus bar joint cutoff state at the bus bar fixed end I. It is a vertical sectional view of FIG. FIG. 6 is a cross-sectional view taken along the line AA of FIG. FIG. 6 is a cross-sectional view taken along the line BB of FIG. It is a hinged bus bar joint connection state at the bus bar fixed end II. It is a hinged bus bar joint cutoff state at the bus bar fixed end II. 9 is a vertical cross-sectional view of FIG. 11 is a cross-sectional view taken along the line BB of FIG. 11 is a cross-sectional view taken along the line CC of FIG. It is a schematic diagram of the corresponding position in the fully closed state of the rigid contact net automatic cutoff return device by this invention, and the door body width 800 to 6500 mm (a movable bus bar with a bending control strut). It is a schematic diagram of the corresponding position when the door body width is 800 to 1000 mm and the rigid contact net automatic cutoff return apparatus by this invention is fully opened (a movable bus bar without a bending control strut). It is a schematic diagram of a rigid contact network automatic cutoff return device cutoff state in a state where a lift door is closed. It is a schematic diagram of the rigid contact net automatic cutoff return device in the fully open state in the elevating door open state.

Hereinafter, the present invention will be described in more detail based on the specific embodiments of FIGS. 1 to 17.

As shown in FIGS. 1 to 3, the rigid contact network automatic shutoff / return device employs a three-stage bus bar structure, of which the two-stage bus bars are located on both sides of the water-proof door or the opening / closing locus of the cutoff door 9. Each is a fixed bus bar to be fixed, and includes a bus bar fixed end I1 suspension-mounted on both side tunnel walls 10, a bus bar fixed end II2, a sliding bus bar joint 3, and a hinge type bus bar joint 4. A sliding bus bar joint 3 is connected to the bus bar fixed end I1 to form a one-stage fixed bus bar. A hinged bus bar joint 4 is connected to the bus bar fixed end II2 to form another one-stage fixed bus bar. The third-stage bus bar is a movable bus bar 5, and the movable bus bar 5 is connected to each of the two-stage fixed bus bars via a slide-type bus bar joint 3 and a hinge-type bus bar joint 4. The movable bus bar 5 can rotate up and down along the hinged bus bar joint 4, and switches between a connected state and a disconnected state of the bus bar. The sliding bus bar joint 3 can engage and release the movable bus bar 5 so that the movable bus bar 5 is fixed at the bus bar connection position and the movable bus bar 5 is released at the bus bar cutoff position.

Further, the movable bus bar 5 is provided with a strut holder 6, a bus bar deflection control strut 7, and a conductive copper cable 8, and one end of the bus bar deflection control strut 7 is attached on the movable bus bar 5 by the strut holder 6. The other end is movably connected to the hinged bus bar joint 4, and its length can be adjusted according to the vertical deformation due to its own weight when the movable bus bar 5 is placed horizontally, achieving the purpose of controlling the deflection of the movable bus bar 5. do.

As shown in FIGS. 4 to 8, the sliding bus bar joint 3 includes a first lid plate 3-1, a first conductive arm 3-2, a high-voltage insulating holder 3-3, and a first pusher mechanism 3. -5, slider 3-6, slider pin 3-7, first fixed block 3-8, first bus bar cutoff position sensor 3-9, first bus bar connection position sensor 3-10. , Is equipped. The outside of the sliding bus bar joint 3 is a rigid member in which two lid plates 3-1 and two first conductive arms 3-2 are connected via bolts to close the side surfaces, and the first fixing is performed. Inside the block 3-8, a concave groove matching the cross section of the bus bar fixed end I1 is provided. The first lid plate 3-1 and the first conductive arm 3-2 are bolted to the bus bar fixing end I1 via the first fixing block 3-8, and the cross section thereof is the cross section of FIG. As shown in FIGS. BB, the slider 3-6 is attached to the first conductive arm 3-2 by the slider pin 3-7. A slide groove is provided on the side surface of the first conductive arm 3-2 so as to slide the slider 3-6 in the slide groove direction. The slider 3-6 is provided with a concave groove that matches the cross section of the movable bus bar 5, and when it is slid to the limit position at one end, the internal concave groove meshes with the movable bus bar 5 to form a sliding bus bar joint 3. It is structurally connected, and at this time, the three-stage bus bar electrically maintains the connected state. The movement of the slider 3-6 along the slide groove is realized by the first pusher mechanism 3-5. One end of the first pusher mechanism 3-5 is connected to the slider 3-6, and the other end is hinged to the high voltage insulation holder 3-3. The first pusher mechanism 3-5 has a worm gear structure, and a pulling operation is performed by a manual drive method or a method of being driven by a first drive motor 3-4. A first bus bar cutoff position sensor 3-9 and a first bus bar connection position sensor 3-10 are attached to the sliding bus bar joint 3. The first bus bar cutoff position sensor 3-9 and the first bus bar connection position sensor 3-10 are inductive sensors, respectively, and their receiving ends are the first fixed blocks 3-8 and the first fixed block 3-8 via an insulating bracket. It is attached to each of the lid plates 3-1 of No. 1, and its guide end is attached on the slider 3-6 via an insulating bracket. Specifically, as shown in FIG. 5, the first bus bar cutoff position sensor 3-9 and the first bus bar connection position sensor 3-10 position the slider 3-6 with respect to the first conductive arm 3-2. It is sensible and can recognize the connection cutoff state between the movable bus bar 5 and the sliding bus bar joint 3.

As shown in FIGS. 9 to 13, the hinge type bus bar joint 4 includes a second conductive arm 4-1 and a hinge pin 4-2, a rotating block 4-3, a second fixed block 4-11, and a second. 2 lid plate 4-10, 1st holder 4-4, 2nd pusher mechanism 4-5, 2nd holder 4-7, 2nd bus bar cutoff position sensor 4-8, and 1st It is equipped with 2 bus bar connection position sensors 4-9. The outside of the hinged bus bar joint 4 is a rigid member in which the two second lid plates 4-10 and the two second conductive arms 4-1 are connected via bolts and the side surfaces are closed. Inside the second fixing block 4-11 of the type bus bar joint 4, a concave groove matching the cross section of the bus bar fixing end II2 is provided. The second lid plate 4-10 and the second conductive arm 4-1 are bolted to the bus bar fixing end II2 via the second fixing block 4-11, and the cross section thereof is shown in FIG. As shown in the cross-sectional views CC, a concave groove matching the cross section of the movable bus bar 5 is formed inside the rotating block 4-3, and is fixedly connected to the movable bus bar 5 via a bolt. At the same time, the rotating block 4-3 is hinged to the second conductive arm 4-1 via the hinge pin 4-2. The rotation of the rotation block 4-3 is realized by the second pusher mechanism 4-5. One end of the second pusher mechanism 4-5 is hinged to the first holder 4-4 in the rotating block 4-3, and the other end is hinged to the second holder 4-7. The second pusher mechanism 4-5 has a worm gear structure, and a pulling operation is performed by a method of manually driving or a method of driving by a second drive motor 4-6. A second bus bar cutoff position sensor 4-8 and a second bus bar connection position sensor 4-9 are attached to the hinge type bus bar joint 4. The second bus bar cutoff position sensor 4-8 and the second bus bar connection position sensor 4-9 are inductive sensors, respectively, and their receiving ends are attached to the second conductive arm 4-1 via an insulating bracket. The guide end is mounted on the first holder 4-4 via an insulating bracket. Specifically, as shown in FIG. 10, the second bus bar cutoff position sensor 4-8 and the second bus bar connection position sensor 4-9 are the positions of the rotation block 4-3 with respect to the second conductive arm 4-1. Can be detected, and the connection cutoff state between the movable bus bar 5 and the hinged bus bar joint 4 can be recognized. The second pusher mechanism 4-5 is attached with an insulating joint capable of maintaining electrical insulation between the second pusher mechanism 4-5 and the bus bar. The second holder 4-7 uses a high-voltage resistant insulating material capable of guaranteeing electrical insulation between the second drive motor 4-6, the second pusher mechanism 4-5, and the bus bar.

In order to improve the electrical conductivity between the movable bus bar 5 and the bus bar fixed end II2, a conductive copper cable 8 is further provided, one end of which is connected to the bus bar fixed end II2 and the other end of which is connected to the movable bus bar 5. In order to avoid the ignition phenomenon due to a large current, an appropriate connection point is selected for the connection point according to the actual potential characteristics, and the potential difference that cuts off the bus bar is eliminated.

As shown in FIGS. 14 to 15 and 16 to 17, the rigid contact network automatic cutoff / return device is applied to an upright rotary water-proof water-proof door or a cut-off door and an elevating type water-proof door or a cut-off door. The cutoff return device further includes a control system, which is connected to the water-proof door or the open / close control system of the cut-off door and can be efficiently adapted to the open / close operation of the water-proof door or the cut-off door, and is a fully automated operation. The risk of personnel operation is reduced, and the opening and closing time of the flood-proof door or blocking door is also shortened.

The length of the movable bus bar 5 can be designed by an electric vertical elevating type water-proof door or a blocking door 9, a hydraulic upright rotary water-proof door or a blocking door 9, and the length L = 800 to 6500 mm.

Alternatively, the length of the movable bus bar can be designed by the electric vertical elevating water-proof door or the blocking door 9, and the length of the movable bus bar 5 can be simplified by L = 800 to 1000 mm, and the adjustable bus bar deflection control strut 7 is not provided. ..

Alternatively, the length of the movable bus bar 5 is designed according to the door hole width dimension of the hydraulic upright rotary water-proof door or the blocking door 9, and the movable bus bar 5 has a length L = 3800 to 6500 mm. The movable bus bar 5 is provided with an adjustable bus bar deflection control strut 7 to control the vertical deformation of the movable bus bar 5, realize accurate engagement between the movable bus bar 5 and the sliding bus bar, and ensure reliable meshing. And complete the release operation.

The above embodiments are given to explain the technical idea of the present invention more clearly, and are not limited to the present invention. Changes to the technical ideas of the present application by those skilled in the art based on the well-known common sense in this field are also within the scope of protection of the present application. In short, the above embodiment is only an example. The scope of protection of the present application is in accordance with the scope of claims.

Claims (9)

Rigid contact network automatic shutoff return device, which adopts a three-stage busbar structure, of which the two-stage busbar is fixed to both sides of the water-proof door or the opening / closing locus of the cutoff door (9), respectively. A bus bar, a bus bar fixed end I (1) suspended and mounted on both side tunnel walls (10), a bus bar fixed end II (2), a sliding bus bar joint (3), and a hinge type bus bar joint (4). A sliding bus bar joint (3) is connected to the bus bar fixed end I (1) to form a one-stage fixed bus bar, and a hinge type bus bar is connected to the bus bar fixed end II (2). The joint (4) is connected to form another one-stage fixed bus bar, the third-stage bus bar is a movable bus bar (5), and the movable bus bar (5) is a sliding bus bar joint (3) and. Each is connected to a two-stage fixed bus bar via a hinged bus bar joint (4), and the movable bus bar (5) can rotate up and down along the hinged bus bar joint (4), and the connected state of the bus bar The sliding bus bar joint (3) is switched from the cut-off state so that the movable bus bar (5) is fixed when the bus bar is in the connection position and the movable bus bar (5) is released when the bus bar is in the cut-off position. , movable bus bar (5) the Ri engagement and releasable der,
The movable bus bar (5) is provided with a strut holder (6), a bus bar deflection control strut (7), and a conductive copper cable (8), and the bus bar deflection control strut (7) has a strut holder (7) at one end. Attached to the movable bus bar (5) by 6), the other end is movably connected to the hinged bus bar joint (4), and the length can be adjusted according to the vertical deformation due to its own weight when the movable bus bar (5) is placed horizontally. A rigid contact network automatic cutoff / return device for controlling the bending of the movable bus bar (5). The sliding bus bar joint (3) includes a first lid plate (3-1), a first conductive arm (3-2), a high-pressure insulating holder (3-3), and a first pusher mechanism (3). 3-5), slider (3-6), slider pin (3-7), first fixed block (3-8), first busbar cutoff position sensor (3-9), and first. The bus bar connection position sensor (3-10) of 1 is provided, and the outside of the sliding bus bar joint (3) is provided with two lid plates (3-1) and two first conductive arms (3-2). ) Is connected via a bolt to form a rigid member whose side surface is closed, and the inside of the first fixing block (3-8) is a concave groove matching the cross section of the bus bar fixing end I (1). Is opened, and the first lid plate (3-1) and the first conductive arm (3-2) are bolted to the bus bar fixing end I (1) via the first fixing block (3-8). The slider (3-6) is attached to the first conductive arm (3-2) by the slider pin (3-7), and the slider (3-2) is attached to the side surface of the first conductive arm (3-2). A slide groove is opened so as to slide 3-6) in the direction of the slide groove, and the slider (3-6) has a concave groove that matches the cross section of the movable bus bar (5) and slides to the limit position at one end. Then, the internal concave groove meshes with the movable bus bar (5) and is structurally connected to the sliding bus bar joint (3), and at this time, the three-stage bus bar maintains the electrically connected state according to claim 1 . The described rigid contact network automatic shutoff / return device. The movement of the slider (3-6) along the slide groove is realized by the first pusher mechanism (3-5), and the first pusher mechanism (3-5) has one end of the slider (3-6). It is connected, the other end is hinged to the high voltage insulation holder (3-3), and the first pusher mechanism (3-5) has a worm gear structure, a manual drive method, or a first drive motor (3). -4) The rigid contact network automatic cutoff / return device according to claim 2 , wherein the tensile operation is performed by the method driven by the method. A first bus bar cutoff position sensor (3-9) and a first bus bar connection position sensor (3-10) are attached to the slide type bus bar joint (3), and the first bus bar cutoff position sensor (3-10) is attached. The 3-9) and the first bus bar connection position sensor (3-10) are inductive sensors, respectively, and their receiving ends are the first fixed block (3-8) and the first fixed block (3-8) via the insulating bracket. Attached to the lid plate (3-1) respectively, the guide end thereof is attached on the slider (3-6) via the insulating bracket, and the first bus bar cutoff position sensor (3-9) and the first. The bus bar connection position sensor (3-10) can detect the position of the slider (3-6) with respect to the first conductive arm (3-2), and the movable bus bar (5) and the sliding bus bar joint (3). The rigid contact network automatic cutoff / return device according to claim 3 , which can recognize the connection cutoff state with the busbar. The hinged busbar joint (4) includes a second conductive arm (4-1), a hinge pin (4-2), a rotating block (4-3), and a second fixed block (4-11). , 2nd lid plate (4-10), 1st holder (4-4), 2nd pusher mechanism (4-5), 2nd holder (4-7), 2nd A bus bar cutoff position sensor (4-8) and a second bus bar connection position sensor (4-9) are provided, and the outside of the hinged bus bar joint (4) has two second lid plates (4-). 10) and the two second conductive arms (4-1) are connected via bolts to form a rigid member whose side surfaces are closed, and the second fixing block (4) of the hinged busbar joint (4) is formed. Inside 4-11), a concave groove matching the cross section of the bus bar fixed end II (2) is opened, and the second lid plate (4-10) and the second conductive arm (4-1) are separated from each other. , Bolted to the busbar fixing end II (2) via a second fixing block (4-11), the rotating block (4-3) inside which matches the cross section of the movable busbar (5). A groove is opened and fixedly connected to the movable bus bar (5) via a bolt, and the rotating block (4-3) is connected to a second conductive arm (4-1) via a hinge pin (4-2). The rigid contact network automatic cutoff / return device according to claim 1, which is hinged. The rotation of the rotation block (4-3) is realized by the second pusher mechanism (4-5), and the second pusher mechanism (4-5) has one end of the first in the rotation block (4-3). The second pusher mechanism (4-5) has a worm gear structure and is manually driven. The rigid contact network automatic cutoff / return device according to claim 5 , wherein the tensile operation is performed by a method or a method driven by a second drive motor (4-6). A second bus bar cutoff position sensor (4-8) and a second bus bar connection position sensor (4-9) are attached to the hinge type bus bar joint (4), and the second bus bar cutoff position sensor (4-8) is attached. The 4-8) and the second bus bar connection position sensor (4-9) are inductive sensors, respectively, and their receiving ends are attached to the second conductive arm (4-1) via an insulating bracket to guide them. The ends are mounted on the first holder (4-4) via an insulating bracket, the second busbar cutoff position sensor (4-8) and the second busbar connection position sensor (4-9). The sixth aspect of claim 6 is capable of sensing the position of the rotating block (4-3) with respect to the second conductive arm (4-1) and recognizing the connection cutoff state between the movable bus bar (5) and the sliding bus bar joint (4). The described rigid contact network automatic shutoff / return device. An insulating joint capable of maintaining electrical insulation between the second pusher mechanism (4-5) and the bus bar is attached to the second pusher mechanism (4-5), and a second holder (4-5) is attached. 7) uses a high-pressure resistant insulating material capable of guaranteeing electrical insulation between the second drive motor (4-6) and the second pusher mechanism (4-5) and the bus bar, and at the same time, the movable bus bar (4). In order to improve the electrical conductivity between the 5) and the bus bar fixed end II (2), a conductive copper cable (8) is further provided, one end of which is connected to the bus bar fixed end II (2), and the like. A claim that the end is connected to a movable bus bar (5) and an appropriate connection point is selected for the connection point according to the actual potential characteristics in order to avoid the ignition phenomenon due to a large current, and the potential difference that cuts off the bus bar is eliminated. Item 7. The rigid contact network automatic shutoff / return device according to Item 7. The rigid contact network automatic shutoff return device further includes a control system, and the control system can be connected to a water-proof door or a cut-off door open / close control system to efficiently match the open / close operation of the water-proof door or the cut-off door. The rigid contact network automatic shutoff according to any one of claims 1 to 8 , which realizes fully automated operation, reduces the risk of personnel operation, and shortens the opening / closing time of the water-proof door or the shutoff door. An upright rotary flood-proof or blocking door using a return device, or an elevating flood-proof or blocking door.

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