Safety limiting structure of civil air defense door in maglev subway section

Abstract

The application discloses a kind of magnetic levitation subway section civil air defense door safety limiting structure, including limiting pile, support seat and door leaf moving wheel, the limiting pile is arranged at the location limiting of magnetic levitation subway section civil air defense door, the support seat is set on limiting pile, the door leaf moving wheel is set on magnetic levitation door leaf, and located on support seat, set limiting pile and support seat are used for the locking of magnetic levitation subway section civil air defense door, realize the flexible switching of free opening and locking of magnetic levitation door leaf, ensure the design safety of magnetic levitation subway section civil air defense door and the driving safety when train passes through section civil air defense door.The application sets limiting pile and support seat for the locking of magnetic levitation subway section civil air defense door, realize the flexible switching of free opening and locking of magnetic levitation door leaf, ensure the design safety of magnetic levitation subway section civil air defense door and the driving safety when train passes through section civil air defense door.

Description

Technical Field

[0001] This invention relates to the field of civil defense engineering technology, specifically to a safety limiting structure for civil defense doors in maglev subway sections. Background Technology

[0002] Maglev trains are trains propelled by magnetic levitation. Because the magnetic force of their tracks levitates them in the air, they do not need to touch the ground when traveling. Therefore, their resistance is only the resistance of the air, giving them the advantages of high speed and smooth, comfortable operation.

[0003] When a maglev line passes through underground sections, according to relevant Chinese civil defense laws, civil defense works must be constructed, necessitating the installation of civil defense equipment suitable for maglev subway sections. The safety of these civil defense equipment is paramount, encompassing both the safety of the design process and the secure fixing of the maglev doors. This ensures that the doors do not encroach on the train's clearance limits, preventing potential safety hazards. However, existing subway protection equipment cannot adequately protect maglev doors. This invention provides a safety limiting structure for civil defense doors in maglev subway sections to address these issues. Summary of the Invention

[0004] This invention provides a safety limiting structure for a maglev subway section air-raid shelter door. It sets up limiting posts and uses support seats on the limiting posts to limit and fix the maglev door leaf, ensuring the design safety of the maglev subway section air-raid shelter door and the driving safety of the train when passing through the air-raid shelter door.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A safety limiting structure for a maglev subway section air-raid shelter door includes a limiting post, a support base, and door leaf moving wheels. The limiting post is set at the positioning limit of the maglev subway section air-raid shelter door. The support base is set on the limiting post, and the door leaf moving wheels are set on the maglev door leaf and located on the support base.

[0007] The support base includes a mounting base, a height adjustment platform, and a limit block. The mounting base is set on the limit stake, the height adjustment platform is set in the mounting base, the limit block is movably set on the mounting base, and the door leaf moving wheel is located on the height adjustment platform and in contact with the limit block.

[0008] Furthermore, the height adjustment platform includes an adjustment rod, a moving block, and a height adjustment block. The moving block and the height adjustment block are disposed in the mounting base. The moving block is disposed below the height adjustment block. The adjustment rod is horizontally disposed in the mounting base. The middle section of the adjustment rod is located in the moving block and is movably connected to the moving block.

[0009] Furthermore, the top surface of the moving block and the bottom surface of the height adjustment block are both inclined surfaces, and they fit together, with the fitting inclined surfaces intersecting the axis of the adjusting rod.

[0010] Furthermore, the width of the height adjustment block is the same as the inner cavity width of the mounting base, and the width of the moving block is smaller than the inner cavity width of the mounting base.

[0011] Furthermore, the limiting block is movably disposed outside the mounting base and has a passage state and a limiting state. In the passage state, the limiting block is horizontally disposed, and in the limiting state, the limiting block is vertically disposed. In the limiting state, the limiting block is in contact with the door leaf moving wheel.

[0012] Furthermore, the limiting block includes a movable seat and a baffle plate, the movable seat being connected to the mounting base via a pin, and the baffle plate being disposed on the movable seat.

[0013] Furthermore, the movable seat is provided with a locking bolt, which restricts the movement to either a passable or a limited state.

[0014] Furthermore, the door leaf moving wheel includes a connecting frame, a wheel frame, and rollers. The connecting frame is connected to the magnetic levitation door leaf, the wheel frame is connected to the connecting frame, and the rollers are connected to the wheel frame.

[0015] Furthermore, the roller includes an axle, a wheel body, and a bearing, wherein the wheel body is connected to the axle via the bearing, and the axle is mounted on a wheel frame.

[0016] Preferably, the adjusting rod and the moving block are connected by a lead screw and nut structure.

[0017] The beneficial effects of this invention are as follows:

[0018] Limiting posts and support seats are installed to lock the air-raid shelter doors in the maglev metro section, enabling the maglev door panels to open freely and switch flexibly between locking and unlocking, ensuring the design safety of the air-raid shelter doors in the maglev metro section and the driving safety of trains passing through the air-raid shelter doors. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the support base of the present invention;

[0021] Figure 3 This is a schematic diagram of the door leaf moving wheel structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the limiting block structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the door leaf moving wheel of the present invention;

[0024] Figure 6This is a schematic diagram of the structural clearance of the maglev subway section air-raid shelter door of the present invention.

[0025] Reference numerals: 1-Support base, 11-Mounting base, 12-Elevation adjustment platform, 121-Adjusting rod, 122-Moving block, 123-Elevation adjustment block, 13-Limit stop, 131-Moving seat, 132-Baffle plate, 2-Door leaf moving wheel, 21-Connecting frame, 22-Wheel frame, 23-Roller, 3-Slide bed, 4-Slide base, 5-Slide. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0028] like Figure 1 , 2 As shown, a safety limiting structure for a maglev subway section air-raid shelter door includes a limiting post, a support base 1, and door leaf moving wheels 2. The limiting post is set at the positioning limit of the maglev subway section air-raid shelter door. An auxiliary locking pre-embedded structure is set on the side wall at the positioning limit. A rigid tie rod and a flexible hook-and-loop chain are connected to the pre-embedded structure. The support base 1 is set on the limiting post. After the maglev door leaf is opened to the position, the door leaf moving wheels 2 set on the maglev door leaf will move to the support base 1. The support base 1 supports the door leaf moving wheels 2 and the maglev door leaf. The door leaf moving wheels 2 are set on the maglev door leaf and located on the support base 1. At this time, the rigid tie rod and the flexible hook-and-loop chain are connected to the door leaf after the maglev subway section air-raid shelter door is opened to the position and locked to prevent the maglev door leaf from moving, thus achieving the stability of the maglev door leaf.

[0029] like Figure 2As shown, the support base 1 includes a mounting base 11, a height adjustment platform 12, and a limiting block 13. The mounting base 11 is set on the limiting stake and is used to place the height adjustment platform 12 and the limiting block 13. The height adjustment platform 12 is set in the mounting base 11 and is used to support the door leaf moving wheel 2 by adjusting its own height. The limiting block 13 is movably set on the mounting base 11 and is used to limit the position of the door leaf moving wheel 2. The door leaf moving wheel 2 is located on the height adjustment platform 12 and is in contact with the limiting block 13.

[0030] like Figure 2 As shown, the height adjustment platform 12 further includes an adjustment rod 121, a moving block 122, and a height adjustment block 123. The moving block 122 and the height adjustment block 123 are disposed in the mounting base 11. The moving block 122 is disposed below the height adjustment block 123. The adjustment rod 121 is horizontally disposed in the mounting base 11. The middle section of the adjustment rod 121 is located in the moving block 122 and is movably connected to the moving block 122.

[0031] The height adjustment principle of the height adjustment platform 12 is as follows: The screw and nut structure between the adjusting rod 121 and the moving block 122 allows the moving block 122 to move axially along the adjusting rod 121 when the adjusting rod 121 is rotated. As the moving block 122 moves, the contact surface between it and the height adjustment block 123 moves simultaneously. Since the height adjustment block 123 itself is restricted from moving, the center height of the contact surface also moves simultaneously with the movement of the moving block 122, thus changing the height of the height adjustment block 123 and achieving height adjustment. The height adjustment platform 12 is designed to adapt to the height of the door leaf moving wheels 2 on the magnetic levitation door leaf.

[0032] Furthermore, the top surface of the moving block 122 and the bottom surface of the height adjustment block 123 are both inclined surfaces and fit together, with the fitting inclined surfaces intersecting the axis of the adjusting rod 121.

[0033] Furthermore, the width of the height adjustment block 123 is the same as the inner cavity width of the mounting base 11, and the width of the moving block 122 is smaller than the inner cavity width of the mounting base 11, thereby enabling the moving block 122 to move.

[0034] like Figure 1 , 4 As shown, the limiting block 13 is further movably disposed outside the mounting base 11, and has a passage state and a limiting state. When in the passage state, the limiting block 13 is horizontally disposed, and when in the limiting state, the limiting block 13 is vertically disposed. In the limiting state, the limiting block 13 is in contact with the door leaf moving wheel 2.

[0035] The specific operation for changing the state of the limit block 13 is as follows: When changing from the passable state to the limit state, first remove the locking bolt on the limit block 13, then rotate the limit block 13 from the horizontal state to the vertical state, insert the locking bolt into the corresponding pin hole, and lock the limit block 13 to achieve the state change; when changing from the limit state to the passable state, the opposite operation is used.

[0036] like Figure 4 As shown, the limiting block 13 further includes a movable seat 131 and a baffle 132. The movable seat 131 is connected to the mounting base 11 by a pin, and the baffle 132 is disposed on the movable seat 131.

[0037] Furthermore, the movable seat 131 is provided with a locking bolt, which restricts the passage or the limiting state.

[0038] like Figure 3 , 5 As shown, the door leaf moving wheel 2 further includes a connecting frame 21, a wheel frame 22 and a roller 23. The connecting frame 21 is connected to the magnetic levitation door leaf, the wheel frame 22 is connected to the connecting frame 21, and the roller 23 is connected to the wheel frame 22.

[0039] Furthermore, the roller 23 includes an axle, a wheel body, and a bearing. The wheel body is connected to the axle via the bearing, and the axle is mounted on the wheel frame 22.

[0040] Preferably, the axle is fixed to the wheel frame 22 by a clamping plate to fix the axle and prevent abnormal rotation of the axle.

[0041] Preferably, the adjusting rod 121 and the moving block 122 are connected by a lead screw and nut structure.

[0042] like Figure 6 As shown, the structure of the air-raid shelter door in the maglev subway section further includes a track bed 3, a track base 4, and a track 5. The track 5 is set on the track base 4, and the track base 4 is set on the track bed 3. The air-raid shelter door needs to be adapted to the air-raid shelter door structure when it is installed.

[0043] Specific design and usage of the present invention:

[0044] First, a drainage ditch is set off from the wall in the civil defense section of the magnetic levitation door leaf, and a drainage ditch protective valve is set at the side wall of the civil defense door frame. The lower threshold of the civil defense door is separated from the rail support beam, and the spacing of the rail support platform is adjusted to adapt to the opening radius of the civil defense door so as to achieve the purpose of the civil defense door being able to be fully opened.

[0045] Second, set up limit stakes and install fixed support base 1. Set up an auxiliary locking embedded structure on the side wall at the limit position, and connect a rigid tie rod and a flexible hook chain to the embedded structure.

[0046] Third, first change the limit block 13 from the passable state to the limit state, and adjust the height of the height adjustment platform 12 to adapt to the height of the door leaf moving wheel 2, and then open the magnetic levitation door leaf to the fully open state.

[0047] Fourth, use rigid tie rods and flexible hook-and-loop chains to connect with the magnetic levitation door leaf to fix the magnetic levitation door leaf;

[0048] 5. Install the gate valve of the drainage ditch protection gate valve.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A safety limiting structure for air-raid shelter doors in maglev subway sections, characterized in that it includes... Limiting stake, support base (1) and door leaf moving wheel (2), the limiting stake is set at the positioning limit of the maglev subway section air defense door, the support base (1) is set on the limiting stake, and the door leaf moving wheel (2) is set on the maglev door leaf and located on the support base (1); The support base (1) includes a mounting base (11), a height adjustment platform (12), and a limiting block (13). The mounting base (11) is set on the limiting stake, the height adjustment platform (12) is set in the mounting base (11), the limiting block (13) is movably set on the mounting base (11), and the door leaf moving wheel (2) is located on the height adjustment platform (12) and contacts the limiting block (13). The height adjustment platform (12) includes an adjustment rod (121), a moving block (122), and a height adjustment block (123). The moving block (122) and the height adjustment block (123) are located in the mounting base (11). The moving block (122) is located below the height adjustment block (123). The adjustment rod (121) is horizontally arranged in the mounting base (11). The middle section of the adjustment rod (121) is located in the moving block (122) and is movably connected to the moving block (122).

2. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 1, characterized in that: The top surface of the moving block (122) and the bottom surface of the height adjustment block (123) are both inclined surfaces and fit together. The fitted inclined surfaces intersect with the axis of the adjusting rod (121).

3. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 1, characterized in that: The width of the height adjustment block (123) is the same as the inner cavity width of the mounting base (11), and the width of the moving block (122) is smaller than the inner cavity width of the mounting base (11).

4. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 1, characterized in that: The limiting block (13) is movably disposed outside the mounting base (11) and has a passable state and a limiting state. When in the passable state, the limiting block (13) is horizontally disposed. When in the limiting state, the limiting block (13) is vertically disposed. In the limiting state, the limiting block (13) is in contact with the door leaf moving wheel (2).

5. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 1, characterized in that: The limiting block (13) includes a movable seat (131) and a baffle (132). The movable seat (131) is connected to the mounting base (11) by a pin, and the baffle (132) is provided on the movable seat (131).

6. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 5, characterized in that: The movable seat (131) is provided with a locking bolt, which restricts the passage or the limit state.

7. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 1, characterized in that: The door leaf moving wheel (2) includes a connecting frame (21), a wheel frame (22) and a roller (23). The connecting frame (21) is connected to the magnetic levitation door leaf, the wheel frame (22) is connected to the connecting frame (21), and the roller (23) is connected to the wheel frame (22).

8. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 7, characterized in that: The roller (23) includes an axle, a wheel body and a bearing. The wheel body is connected to the axle through the bearing, and the axle is mounted on the wheel frame (22).

9. The safety limiting structure for a maglev subway section air-raid shelter door according to claim 2, characterized in that: The adjusting rod (121) and the moving block (122) are connected by a lead screw and nut structure.

Images