Rigid catenary anchor section based on triggering disconnection of civil air defense door

Abstract

A rigid contact wire anchor section based on the trigger disconnection of a civil defense door includes a first busbar, a second busbar, a left busbar terminal, and a right busbar terminal. The left end of the first busbar and the left busbar terminal are suspended on the left side of the civil defense door frame via two first rotating clamps. The right end of the second busbar and the right busbar terminal are suspended on the right side of the civil defense door after it is fully opened via two second rotating clamps. The right end of the first busbar and the left end of the second busbar are suspended on the right side of the civil defense door frame via separable clamps, and the separation point of the separable clamps is higher than the top of the civil defense door. A swing arm mechanism is fixedly suspended above the end of the civil defense door away from the door hinge after it is fully opened. The swing arm mechanism is connected to the separable clamps via a pull wire. When the civil defense door is closed, the lower end of the swing arm is pushed to rotate upward to separate the separable clamps. Under the action of gravity, the arm rotates rapidly around the first and second rotating clamps to a vertical state, opening up the closing space of the civil defense door.

Description

Technical Field

[0001] This invention belongs to the field of rigid contact wire technology, and particularly relates to a rigid contact wire anchor section based on the trigger disconnection of a civil defense door. Background Technology

[0002] Civil defense door systems are crucial disaster prevention devices in subway tunnels. When a tunnel is damaged unexpectedly or floods occur, the rapid closure of civil defense doors can effectively protect station facilities and personnel, and reduce the scope of the disaster's impact. However, due to the presence of continuously erected rigid contact wires, the rapid closure of civil defense doors has become a major challenge. Currently, the rigid contact wires at civil defense doors in subway lines are usually arranged in small anchor sections. In emergencies, these sections of the busbar need to be manually dismantled before the civil defense door can be closed, resulting in the inability to close the doors quickly.

[0003] The closest prior art to this invention is a rigid system detachable manifold suspension device (CN107344511 A), but it is only applicable to vertical lifting flood doors and not to swing-type air defense doors. Summary of the Invention

[0004] This invention provides a rigid contact wire anchor section based on the trigger disconnection of the air defense door. The rigid contact wire is promptly disconnected by the force of the swing air defense door when it is closed, so as to make room for the air defense door to close and realize the rapid closing of the air defense door.

[0005] The technical solution adopted in this invention is: a rigid contact wire anchor section based on the trigger disconnection of a civil defense door, including a first busbar, a second busbar, a left busbar terminal, and a right busbar terminal. The left end of the first busbar and the left busbar terminal are suspended on the left side of the door frame of the civil defense door through two first rotating clamps and a first suspension support device. The right end of the second busbar and the right busbar terminal are suspended on the right side of the civil defense door after it is fully opened through two second rotating clamps and a second suspension support device. The right end of the first busbar and the left end of the second busbar are suspended on the right side of the door frame of the civil defense door through a separable clamp and a third suspension support device, and the separation point of the separable clamp is higher than the top of the civil defense door.

[0006] The separable suspension clamp includes a suspension seat, two busbar clamps, and two booms. The suspension seat is suspended below the third suspension support device. The busbar clamps are symmetrically connected to the bottom of the booms. The upper end of the boom extends into the suspension seat and is suspended below the suspension seat through a suspension shaft horizontally inserted into the suspension seat. The right end of the first busbar and the left end of the second busbar are respectively clamped on the two busbar clamps.

[0007] After the air-raid shelter door is fully opened, a swing arm mechanism is fixedly suspended above the end away from the door hinge. The swing arm mechanism includes a suspension frame, on which a swing arm is vertically installed via a horizontal pin. The upper end of the swing arm is connected to one end of a pull line, and the other end of the pull line is connected to the suspension shaft.

[0008] The lower end of the swing arm abuts against the inside of the air-raid shelter door. When the air-raid shelter door is closed, the lower end of the swing arm is pushed to rotate upward. The upper end of the swing arm drives the pull line to move to the right, pulling out the suspension shaft. This causes the two booms to detach from the suspension seat and separate. Then, the first busbar and the second busbar rotate rapidly around the first rotating clamp and the second rotating clamp under the action of gravity to a vertical state, opening up the closing space of the air-raid shelter door.

[0009] A guide rod is provided below the suspension shaft, and the guide rod is horizontally inserted into the suspension seat and the boom; a spring contact finger is provided in the through hole on the boom for inserting the guide rod; one end of the suspension shaft and the guide rod are both fixed to the extraction block, and the pull line is connected to the extraction block.

[0010] The extraction block is disposed in a cavity on one side of the suspension seat. A limit rod is horizontally inserted into the suspension seat in a direction perpendicular to the suspension axis. A spring and a limit block are fitted on the limit rod, and the limit block is located in the cavity and opposite to one side of the extraction block. The side of the extraction block opposite to the limit block has an arc-shaped limit groove. The opposite surface of the limit block and the arc-shaped limit groove is a convex arc surface, and under the action of the spring, the convex arc surface is engaged in the arc-shaped limit groove.

[0011] The upper part of the suspension frame is provided with a set of first guide wheels, and the third suspension support device is provided with a set of second guide wheels. The pull cable is guided by the first guide wheels and the second guide wheels and then connected to the pull block.

[0012] The swing arm is fixed to a horizontal pin, a ratchet is fixedly mounted on the horizontal pin, and an elastic pawl is installed on the suspension frame, with the elastic pawl engaging with the ratchet.

[0013] The two first rotating clamps and the two second rotating clamps are all connected by a first flexible wire.

[0014] The two busbar clamps are respectively connected to the two booms via the second flexible conductor.

[0015] An insulating frame is suspended below the third suspension support device, and the pull wire passes through the insulating frame and connects to the pull block.

[0016] A buffer pad is provided above both ends of the first busbar and above both ends of the second busbar, and the buffer pads are located on the outside of the first rotating clamp, the second rotating clamp and both sides of the detachable suspension clamp, respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This invention has two independent small anchor sections, each with two suspension points, one of which is a detachable point (separable clamp) and the other is a rotation point (rotating clamp). The swing arm mechanism is triggered by the power when the air defense door is closed, and the detachable clamp is separated by the swing arm mechanism. This causes the two independent small anchor sections to rotate rapidly around their respective rotation points to a vertical state, making room for the air defense door to close, thus achieving rapid closing of the air defense door. It is also reusable.

[0019] 2. This invention, through its separable clamp, can ensure both the physical and electrical reliability of the two independent small anchor sections and can also quickly achieve the physical and electrical disconnection of the two independent small anchor sections. It also features stepless height adjustment.

[0020] 3. By setting a ratchet self-locking mechanism on the swing arm mechanism, the present invention can effectively prevent the swing arm from reversing after the separable clamp is separated, causing the pull-out block to fall into the closing area of ​​the air-raid shelter door and affect the closing stroke of the air-raid shelter door, thus ensuring that the swing air-raid shelter door closes in a timely and effective manner.

[0021] 4. The swing arm mechanism of this invention amplifies the power output of the air defense door through the lever principle and controls the separable clamp through a pull wire, which has the characteristics of simple structure and stable and reliable power transmission.

[0022] 5. The present invention is equipped with an insulating frame, which ensures that the extraction block, suspension shaft and guide rod fall onto the insulating frame after being extracted, effectively preventing the extraction block, suspension shaft and guide rod from falling into the closing area of ​​the air-raid shelter door, and further ensuring that the swing air-raid shelter door closes in a timely and effective manner.

[0023] 6. This invention achieves shock absorption and buffering by setting buffer pads at both ends of the two independent small anchor sections of the busbar, preventing damage to the busbar and boom when the two independent small anchor sections rapidly rotate around their respective rotation points to a vertical state, thus improving its reusability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the installation location of the present invention;

[0026] Figure 3 This is a schematic diagram of the disconnected state of the present invention;

[0027] Figure 4 This is a schematic diagram of the detachable wire clamp mounting structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the separable wire clamp of the present invention;

[0029] Figure 6 This is a schematic cross-sectional view of the detachable wire clamp structure of the present invention;

[0030] Figure 7 yes Figure 6 Schematic diagram of the cooperation structure between the extraction block and the limiting block;

[0031] Figure 8 This is a schematic diagram of the swing arm mechanism of the present invention;

[0032] Figure 9 This is a schematic diagram of the wire guiding state of the present invention;

[0033] Figure 10 This is a schematic diagram of the rotating wire clamp structure of the present invention. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-10 The present invention will be described in detail below with reference to specific embodiments.

[0035] Reference Appendix Figure 1-5 8. A rigid contact wire anchor section based on the trigger disconnection of a civil defense door, comprising a first busbar 1, a second busbar 2, a left busbar terminal 3, and a right busbar terminal 4. The left end of the first busbar 1 and the left busbar terminal 3 are suspended on the left side of the door frame of the civil defense door 15 by two first rotating clamps 5 and a first suspension support device 10. The right end of the second busbar 2 and the right busbar terminal 4 are suspended on the right side of the civil defense door 15 after it is fully opened by two second rotating clamps 6 and a second suspension support device 11. The right end of the first busbar 1 and the left end of the second busbar 2 are suspended on the right side of the door frame of the civil defense door 15 by a separable clamp 7 and a third suspension support device 12, and the separation point of the separable clamp 7 is higher than the top of the civil defense door 15.

[0036] The separable suspension clamp 7 includes a suspension seat 7-1, two busbar clamps 7-2, and two booms 7-3. The suspension seat 7-1 is suspended below the third suspension support device 12. The busbar clamps 7-2 are symmetrically connected below the booms 7-3. The upper end of the boom 7-3 extends into the suspension seat 7-1 and is suspended below the suspension seat 7-1 through a suspension shaft 7-4 horizontally inserted into the suspension seat 7-1. The right end of the first busbar 1 and the left end of the second busbar 2 are respectively clamped on the two busbar clamps 7-2.

[0037] After the air defense door 15 is fully opened, a swing arm mechanism 8 is fixedly suspended above the end away from the door hinge. The swing arm mechanism 8 includes a suspension frame 8-1, on which a swing arm 8-2 is vertically installed via a horizontal pin 8-3. The upper end of the swing arm 8-2 is connected to one end of a pull wire 9, and the other end of the pull wire 9 is connected to the suspension shaft 7-4.

[0038] The lower end of the swing arm 8-2 abuts against the inner side of the air defense door 15. When the air defense door 15 is closed, the lower end of the swing arm 8-2 is pushed to rotate upward. The upper end of the swing arm 8-2 drives the pull line 9 to move to the right, pulling out the suspension shaft 7-4. This causes the two booms 7-3 to detach from the suspension seat 7-1 and separate. Then, the first busbar 1 and the second busbar 2 rotate rapidly around the first rotating clamp 5 and the second rotating clamp 6 under the action of gravity to a vertical state, opening up the closing space of the air defense door 15.

[0039] Furthermore, both ends of the first busbar 1 and the second busbar 2, as well as the left busbar terminal 3 and the right busbar terminal 4, are all curved upwards to ensure that the locomotive pantograph can slide in and out smoothly.

[0040] Furthermore, after the lower end of the swing arm 8-2 is bent, a roller 19 is installed through the U-shaped frame 20. The bending angle can be adjusted adaptively according to the site conditions, so that the inner side of the air defense door 15 abuts against the roller 19, avoiding direct friction between the air defense door 15 and the swing arm 8-2 when the air defense door 15 is closed.

[0041] Reference Appendix Figure 6 To further improve the electrical connection reliability of the separable suspension clamp 7, a guide rod 7-5 is provided below the suspension shaft 7-4, and the guide rod 7-5 is horizontally inserted into the suspension seat 7-1 and the boom 7-3; a spring contact finger 7-6 is provided in the through hole on the boom 7-3 for inserting the guide rod 7-5; one end of the suspension shaft 7-4 and the guide rod 7-5 are both fixed on the extraction block 7-7, and the pull wire 9 is connected to the extraction block 7-7.

[0042] Reference Appendix Figure 7 To prevent the suspension shaft 7-4 and the guide rod 7-5 from accidentally detaching during normal operation of the line, the extraction block 7-7 is disposed in a cavity 7-8 on one side of the suspension seat 7-1. A limiting rod 7-9 is horizontally inserted into the suspension seat 7-1 in a direction perpendicular to the suspension shaft 7-4. A spring 7-10 and a limiting block 7-11 are fitted onto the limiting rod 7-9, and the limiting block 7-11 is located in the cavity 7-8 and is opposite to one side of the extraction block 7-7. The side of the extraction block 7-7 opposite to the limiting block 7-11 has an arc-shaped limiting groove 7-12. The opposing surface of the limiting block 7-11 and the arc-shaped limiting groove 7-12 is a convex arc surface. Under the action of the spring 7-10, the convex arc surface is engaged in the arc-shaped limiting groove 7-12, restricting the movement of the extraction block 7-7 and preventing the suspension shaft 7-4 and the guide rod 7-5 from accidentally detaching during normal operation of the line. Only when the pull wire 9 pulls the extraction block 7-7 outward horizontally can the arc-shaped limiting groove 7-12 on the extraction block 7-7 be separated from the convex arc surface, thus pulling out the suspension shaft 7-4 and the guide rod 7-5.

[0043] Reference Appendix Figure 4 and 9 In order to ensure the smooth movement of the pull cable 9 and the smooth detachment of the suspension shaft 7-4 and the guide rod 7-5 in a horizontal state, a set of first guide wheels 8-4 are provided on the upper part of the suspension frame 8-1, and a set of second guide wheels 12-1 are provided on the third suspension support device 12. After being guided by the first guide wheels 8-4 and the second guide wheels 12-1, the pull cable 9 is connected to the detachment block 7-7 in a horizontal state.

[0044] Furthermore, a tension adjusting bolt 17 is connected in series on the pull wire 9 to ensure that the pull wire 9 is in a taut state.

[0045] Furthermore, the pull wire 9 is connected to the release block 7-7 via the insulator 18 to ensure that the swing arm mechanism 8 and the air defense door 15 are in a non-energized state.

[0046] Reference Appendix Figure 8 To effectively prevent the swing arm from reversing after the separable clamp separates, causing the extraction block to fall into the closing area of ​​the air-raid shelter door and affect the closing stroke of the air-raid shelter door, the swing arm 8-2 is fixedly connected to the horizontal pin 8-3. A ratchet 8-6 is fixedly mounted on the horizontal pin 8-3. An elastic pawl 8-5 is installed on the suspension bracket 8-1, and the elastic pawl 8-5 engages with the ratchet 8-6 to prevent the ratchet 8-6 from reversing, thereby preventing the swing arm from reversing.

[0047] Reference Appendix Figure 10 In order to ensure electrical continuity between the two rotating clamps without affecting the rapid rotation of the first busbar 1 and the second busbar 2 around the first rotating clamp 5 and the second rotating clamp 6 to a vertical state under the action of gravity, the two first rotating clamps 5 and the two second rotating clamps 6 are connected by the first flexible wire 16.

[0048] Reference Appendix Figure 6 Since the two busbar clamps 7-2 are horizontally hinged to the two booms 7-3 respectively, in order to ensure the electrical continuity between the busbar clamps 7-2 and the booms 7-3 on the same side, and without affecting the separation of the two busbar clamps 7-2 and the two booms 7-3, the two busbar clamps 7-2 and the two booms 7-3 are respectively connected by the second flexible conductor 7-13. That is, the busbar clamp 7-2 on the left side and the boom 7-3 on the right side are electrically connected by the second flexible conductor 7-13.

[0049] Reference Appendix Figure 4To effectively prevent the detachment block, suspension shaft, and guide rod from falling into the closing area of ​​the air-raid shelter door after detachment, thus affecting the timely and effective closure of the swing-type air-raid shelter door, an insulating frame 13 is suspended below the third suspension support device 12. The pull wire 9 passes through the insulating frame 13 and connects to the detachment block 7-7. This ensures that the detachment block, suspension shaft, and guide rod, after being detached, will fall onto the insulating frame and will not fall into the closing area of ​​the air-raid shelter door.

[0050] Reference Appendix Figure 1 To prevent the first busbar 1 and the second busbar 2 from colliding with the clamps and damaging them when they rapidly rotate around the first rotating clamp 5 and the second rotating clamp 6 to a vertical position under gravity, buffer pads 14 are provided above both ends of the first busbar 1 and above both ends of the second busbar 2. These buffer pads 14 are located on the outer sides of the first rotating clamp 5 and the second rotating clamp 6, and on both sides of the detachable suspension clamp 7, respectively. This improves the reusability of the first busbar 1 and the second busbar 2.

[0051] When the line is running normally, the left bus terminal 3, the first bus 1, the second bus 2 and the right bus terminal 4 are electrically connected in sequence to meet the current demand of the locomotive during normal operation.

[0052] In an emergency, when the air-raid shelter door needs to be closed, the air-raid shelter door 15 rotates around its hinge. Simultaneously, the air-raid shelter door 15 pushes the roller 19, causing the lower end of the swing arm 8-2 to rotate upwards. This, in turn, causes the upper end of the swing arm 8-2 to move the pull wire 9 to the right, pulling out the suspension shaft 7-4 and the guide rod 7-5. This allows the two booms 7-3 to detach from the suspension seat 7-1 and separate. Consequently, the first busbar 1 and the second busbar 2, under the influence of gravity, rapidly rotate around the first rotating clamp 5 and the second rotating clamp 6 respectively until they reach a vertical position, creating space for the air-raid shelter door 15 to close smoothly. At the same time, the extraction block 7-7, the suspension shaft 7-4, and the guide rod 7-5 fall into the insulating frame 13.

[0053] Once the emergency is over, open the air-raid shelter door 15, return the swing arm 8-2 to its initial position, raise the first busbar 1 and the second busbar 2 to the suspension position around the first rotating clamp 5 and the second rotating clamp 6 respectively, and reconnect the two booms 7-3 to the suspension seat 7-1 through the suspension shaft 7-4 and the guide rod 7-5. Adjust the tension adjusting bolt 17 to tighten the cable and restore the line to normal operation.

[0054] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent variations made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A rigid contact wire anchor section based on the trigger disconnection of a civil defense door, characterized in that: The system includes a first busbar (1), a second busbar (2), a left busbar terminal (3), and a right busbar terminal (4). The left end of the first busbar (1) and the left busbar terminal (3) are suspended on the left side of the door frame of the air-raid shelter door (15) by two first rotating clamps (5) and a first suspension support device (10). The right end of the second busbar (2) and the right busbar terminal (4) are suspended on the right side of the air-raid shelter door (15) after it is fully opened by two second rotating clamps (6) and a second suspension support device (11). The right end of the first busbar (1) and the left end of the second busbar (2) are suspended on the right side of the door frame of the air-raid shelter door (15) by a detachable suspension clamp (7) and a third suspension support device (12), and the separation point of the detachable suspension clamp (7) is higher than the top of the air-raid shelter door (15). The separable suspension clamp (7) includes a suspension seat (7-1), two busbar clamps (7-2), and two booms (7-3). The suspension seat (7-1) is suspended below the third suspension support device (12). The busbar clamps (7-2) are symmetrically connected to the bottom of the booms (7-3). The upper end of the booms (7-3) extends into the suspension seat (7-1) and is suspended below the suspension seat (7-1) by a suspension shaft (7-4) horizontally inserted on the suspension seat (7-1). The right end of the first busbar (1) and the left end of the second busbar (2) are respectively clamped on the two busbar clamps (7-2). After the air defense door (15) is fully opened, a swing arm mechanism (8) is fixedly suspended above the end away from the door hinge. The swing arm mechanism (8) includes a suspension frame (8-1), and a swing arm (8-2) is vertically installed on the suspension frame (8-1) through a horizontal pin (8-3). The upper end of the swing arm (8-2) is connected to one end of a pull wire (9), and the other end of the pull wire (9) is connected to the suspension shaft (7-4). The lower end of the swing arm (8-2) abuts against the inner side of the air defense door (15). When the air defense door (15) is closed, the lower end of the swing arm (8-2) is pushed to rotate upward. The upper end of the swing arm (8-2) drives the pull line (9) to move to the right to pull out the suspension shaft (7-4), so that the two booms (7-3) are separated from the suspension seat (7-1). Then, the first busbar (1) and the second busbar (2) rotate rapidly around the first rotating clamp (5) and the second rotating clamp (6) under the action of gravity to the vertical state, opening up the closing space of the air defense door (15).

2. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 1, characterized in that: A guide rod (7-5) is provided below the suspension shaft (7-4), and the guide rod (7-5) is horizontally inserted into the suspension seat (7-1) and the boom (7-3); a spring contact finger (7-6) is provided in the through hole of the boom (7-3) for inserting the guide rod (7-5); one end of the suspension shaft (7-4) and the guide rod (7-5) are both fixed on the extraction block (7-7), and the pull line (9) is connected to the extraction block (7-7).

3. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 2, characterized in that: The extraction block (7-7) is disposed in a cavity (7-8) on one side of the suspension seat (7-1). A limiting rod (7-9) is horizontally inserted into the suspension seat (7-1) in a direction perpendicular to the suspension shaft (7-4). A spring (7-10) and a limiting block (7-11) are fitted on the limiting rod (7-9). The limiting block (7-11) is located in the cavity (7-8) and is opposite to one side of the extraction block (7-7). The side of the extraction block (7-7) opposite to the limiting block (7-11) has an arc-shaped limiting groove (7-12). The opposite surface of the limiting block (7-11) and the arc-shaped limiting groove (7-12) is a convex arc surface. Under the action of the spring (7-10), the convex arc surface is engaged in the arc-shaped limiting groove (7-12).

4. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 3, characterized in that: The upper part of the suspension frame (8-1) is provided with a set of first guide wheels (8-4), and the third suspension support device (12) is provided with a set of second guide wheels (12-1). The pull line (9) is guided by the first guide wheel (8-4) and the second guide wheel (12-1) and then connected to the pull block (7-7).

5. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 2, 3, or 4, characterized in that: The swing arm (8-2) is fixed to the horizontal pin (8-3), and a ratchet (8-6) is fixedly mounted on the horizontal pin (8-3). An elastic pawl (8-5) is installed on the suspension bracket (8-1), and the elastic pawl (8-5) engages with the ratchet (8-6).

6. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 5, characterized in that: The two first rotating clamps (5) and the two second rotating clamps (6) are all connected by a first flexible wire (16).

7. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 5, characterized in that: The two busbar clamps (7-2) and the two booms (7-3) are respectively connected to each other via the second flexible conductor (7-13).

8. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 5, characterized in that: An insulating frame (13) is suspended below the third suspension support device (12), and the pull wire (9) passes through the insulating frame (13) and is connected to the pull block (7-7).

9. The rigid contact wire anchor section based on the trigger disconnection of the air-raid shelter door as described in claim 5, characterized in that: A buffer pad (14) is provided above both ends of the first busbar (1) and above both ends of the second busbar (2), and the buffer pad (14) is located on the outside of the first rotating clamp (5), the second rotating clamp (6) and both sides of the separable hanging clamp (7).

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