Passive emergency drainage shielding door
By designing a passive emergency drainage shielded door, the door automatically opens to drain water based on changes in water level, solving the problem that existing shielded doors cannot respond automatically in emergency situations. This achieves automated control and efficient drainage, while reducing labor costs.
Patent Information
- Application Number
- CN202423131710.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing shielding doors typically require manual control to open or close in emergencies, and cannot automatically respond to environmental changes. This results in the inability to drain water in a timely manner during sudden water leaks, increasing labor costs and potential losses.
A passive emergency drainage shielding door was designed, which uses components such as a pneumatic motor, a time-delay clutch, a float level controller, and a controller to automatically open the door leaf for drainage by utilizing water level changes. The door leaf drive component and the passive drive component are combined to achieve automatic control, and it has automatic opening and sealing functions.
It enables automatic opening of the door for drainage when the water level exceeds the standard, improving the level of automation, reducing manual intervention, and ensuring safety and efficiency in emergency situations.
Smart Images
Figure CN223536249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of shielding doors for civil defense projects, specifically to a passive emergency drainage shielding door. Background Technology
[0002] Platform screen doors are door-type devices used to separate and enclose specific spaces, providing shielding functionality. They are widely used in civil engineering projects. Existing platform screen doors typically require manual control or programmed opening and closing based on time and conditions. However, in special circumstances, they need the ability to open automatically in response to environmental changes, relying primarily on their structural characteristics and non-traditional power sources (such as electricity and hydraulics) to complete critical actions. Most existing platform screen doors lack this function, and in emergencies, the opening and closing of the doors is usually controlled manually on-site or remotely. This requires dedicated personnel for monitoring, increasing labor costs. For example, in civil defense projects, if a water leak occurs at night and monitoring personnel fail to detect it in time, the doors may not open automatically to drain water, leading to severe flooding and significant losses. Utility Model Content
[0003] The purpose of this utility model is to provide a passive emergency drainage shielding door. This shielding door is simple and convenient to open, has strong airtightness when closed, and has a passive opening method, that is, it automatically opens to drain water when the water level exceeds a preset value. It has a high degree of automation and has broad application prospects and market value.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A passive emergency drainage shielding door includes a building main structure, a door opening set in the building main structure, and an embedded door frame fixedly installed in the door opening. A door leaf assembly is rotatably set on the right side of the embedded door frame. A door leaf drive assembly for opening or closing the door leaf assembly is set on the top of the embedded door frame. A passive drive assembly for opening the door leaf assembly is set on one side of the building main structure.
[0006] Preferably, the door panel assembly is rotatably mounted on the right side of the embedded door frame via a through-shaft hinge. The top of the through-shaft hinge is poweredly connected to the commutator. The two power input ends of the commutator are respectively connected to the door panel drive assembly and the passive drive assembly. When the door panel drive assembly or the passive drive assembly drives the commutator to rotate, it drives the through-shaft hinge to rotate, thereby opening and closing the door panel assembly.
[0007] Preferably, an angle sensor is installed at the bottom of the through-shaft hinge, the angle sensor being used to detect the angular position of the door assembly rotation.
[0008] Preferably, a double-action locking assembly is provided on one side of the door assembly. The double-action locking assembly includes a linkage lock head fixedly installed on the door assembly, a handle for driving the linkage lock head to extend and retract, and an electric push rod for swinging the handle. When the handle is turned by manual force or electric push rod, the linkage lock head extends or retracts, thereby achieving locking and unlocking.
[0009] Preferably, the passive drive assembly includes a pneumatic motor, a time-delay clutch, an air pump, a float level controller, and a first controller. The output end of the pneumatic motor is poweredly connected to the time-delay clutch, and one end of the time-delay clutch is poweredly connected to the commutator. The air pump is connected to the pneumatic motor via an air pipe and a control valve. The float level controller is electrically connected to the first controller. When the water level rises to a specified height, the float level controller sends a control signal to the first controller, which controls the pneumatic motor to rotate, thereby driving the door assembly to rotate for a time delay through the time-delay clutch, the commutator, and the through-shaft hinge.
[0010] Preferably, the passive drive assembly further includes multiple limiting pins fixedly installed on one side of the embedded door frame, a locking latch mounted horizontally on the limiting pins, and a drive cylinder fixedly installed on the main building structure. The output end of the drive cylinder is fixedly connected to the locking latch. When the float level controller sends a control signal to the first controller, the first controller controls the piston rod of the drive cylinder to retract, causing the locking latch to move horizontally away from the door assembly and separate from the double-action locking assembly.
[0011] Preferably, the door drive assembly includes two second controllers disposed on both sides of the main building structure, a geared drive motor, and a main clutch disposed at the output end of the geared drive motor. One end of the main clutch is poweredly connected to the commutator through a coupling. The second controllers control the rotation of the geared drive motor to open and close the door assembly.
[0012] Preferably, a sealing strip is provided on the inner side of the embedded door frame, and when the door panel assembly is closed inside the embedded door frame, the sealing strip seals the door panel assembly and the embedded door frame.
[0013] Preferably, a buffer is provided on one side of the main building structure, which comes into contact with the door assembly after it is opened 180°.
[0014] In this invention, the door assembly can be normally controlled to open and close via the door drive assembly, and can also be controlled remotely via a second controller located on both the inner and outer sides of the building's main structure. The door assembly can also automatically open without manual control via a passive drive assembly, enabling automatic drainage when water levels exceed the limit, demonstrating strong automation capabilities. The passive drive assembly allows the locking latch to separate from the double-action locking assembly and delays the opening of the door assembly via a time-delay clutch, ensuring stable and safe opening. A buffer prevents the door assembly from impacting the wall after opening, and a through-shaft hinge allows the upper and lower hinges to move in tandem, ensuring smooth rotation of the door assembly. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a front view schematic diagram of the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the AA cross-section of this utility model;
[0018] Figure 4 This is a partial structural diagram of the present invention;
[0019] Figure 5 This is a schematic diagram of the embedded door frame structure of this utility model;
[0020] Figure 6 This is a cross-sectional schematic diagram of the door leaf assembly of this utility model;
[0021] In the diagram: 1. Main building structure; 2. Embedded door frame; 3. Door leaf assembly; 4. Sealing strip; 5. Buffer; 6. Door leaf drive assembly; 7. Passive drive assembly; 8. Through-shaft hinge; 9. Double-action locking assembly; 10. Reversing device; 11. Angle sensor; 60. Second controller; 61. Gear drive motor; 62. Main clutch; 70. Pneumatic motor; 71. Delay clutch; 72. Air pump; 73. Float level controller; 74. First controller; 75. Limit pin; 76. Locking clip; 77. Drive cylinder; 90. Linked lock head; 91. Handle; 92. Electric push rod. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings:
[0023] like Figures 1-6The passive emergency drainage shielded door shown includes a main building structure 1, a doorway set in the main building structure 1, and an embedded door frame 2 fixedly and sealed within the doorway. A door leaf assembly 3 is rotatably mounted on the right side of the embedded door frame 2. A sealing strip 4 is fixedly mounted on the inner side of the embedded door frame 2. When the door leaf assembly 3 is closed inside the embedded door frame 2, the sealing strip 4 seals the connection between the door leaf assembly 3 and the embedded door frame 2, achieving a tight seal. A buffer 5 is set on one side of the main building structure 1. When the door leaf assembly 3 is opened 180° from top to bottom, it contacts the buffer 5 to prevent the door leaf assembly 3 from impacting the main building structure 1.
[0024] Door assembly 3 is rotatably mounted on the right side of the embedded door frame 2 via a through-shaft hinge 8. The through-shaft hinge 8 includes two hinges and a drive shaft connecting the two hinges, enabling the two hinges to move synchronously and ensuring the smooth opening and closing of door assembly 3. The top of the through-shaft hinge 8 is poweredly connected to a commutator 10. The two power input ends of the commutator 10 are respectively connected to the door drive assembly 6 and the passive drive assembly 7. When the door drive assembly 6 or the passive drive assembly 7 drives the commutator 10 to rotate, it drives the through-shaft hinge 8 to rotate, thereby opening and closing door assembly 3. An angle sensor 11 is installed at the bottom of the through-shaft hinge 8. The angle sensor 11 is used to detect the angular position of the door assembly 3, allowing remote control personnel to understand the status information of the door assembly 3 in real time and providing position information for the overall operation of the shielded door.
[0025] A door leaf drive assembly 6 for opening or closing the door leaf assembly 3 is installed at the top of the embedded door frame 2. The door leaf drive assembly 6 includes two second controllers 60 located on the inner and outer sides of the main building structure 1, a geared drive motor 61 fixedly installed on the main building structure 1, and a main clutch 62 powered by the output end of the geared drive motor 61. One end of the main clutch 62 is powered by a coupling connected to a commutator 10. The second controllers 60 control the rotation of the geared drive motor 61 to open and close the door leaf assembly 3. When the geared drive motor 61 rotates in the forward direction, the door leaf assembly 3 is open; when the geared drive motor 61 rotates in the reverse direction, the door leaf assembly 3 is closed. The second controllers 60 are PLC programmable controllers, which can realize local control, remote control, and real-time monitoring of the door. Under normal circumstances, by authorizing the two second controllers 60, the operator can control the opening and closing of the door leaf assembly 3 from both the inner and outer sides of the main building structure 1. Of course, after the drainage work is completed, the door leaf assembly 3 is also controlled to close via the door leaf drive assembly 6.
[0026] A passive drive assembly 7 for opening the door assembly 3 is provided on one side of the main building structure 1. The passive drive assembly 7 includes a pneumatic motor 70, a time-delay clutch 71, an air pump 72, a float level controller 73, and a first controller 74. The pneumatic motor 70 is fixedly installed on the main building structure 1. The output end of the pneumatic motor 70 is poweredly connected to the time-delay clutch 71. One end of the time-delay clutch 71 is poweredly connected to the commutator 10. The air pump 72 is connected to the pneumatic motor 70 through an air pipe and a control valve. The float level controller 73 is electrically connected to the first controller 74 through a cable. When the water level rises to a specified height, the float level controller 73 sends a control signal to the first controller 74. The first controller 74 controls the pneumatic motor 70 to rotate. Through the transmission of the time-delay clutch 71, the commutator 10, and the through-shaft hinge 8, the door assembly 3 is driven to rotate for a time delay. The delay time of the time-delay clutch 71 is the time it takes for the drive cylinder 77 to retract. When the drive cylinder 77 retracts to its innermost position, the locking latch 76 separates from the double-action locking assembly 9. After the delay ends, the door assembly 3 begins to rotate and open. The first controller 74 is a PLC programmable controller. In a preferred embodiment, the air pump 72 can also be replaced by an air tank and an air cylinder. The first controller 74 is a switch, which can still achieve the automatic opening of the door assembly 3 without the use of electricity. An electric locking device is also provided between the pneumatic motor 70 and the time-delay clutch 71. When the door assembly 3 is opened to the correct position, the electric locking device locks it.
[0027] The passive drive assembly 7 also includes multiple limiting pins 75 fixedly installed on one side of the embedded door frame 2, a locking latch 76 horizontally slidably installed on the multiple limiting pins 75, and a drive cylinder 77 fixedly installed on the main building structure 1. The output end of the drive cylinder 77 is fixedly connected to the locking latch 76, which can drive the locking latch 76 to move horizontally. When the float level controller 73 sends a control signal to the first controller 74, the first controller 74 controls the piston rod of the drive cylinder 77 to retract, driving the locking latch 76 to move horizontally away from the door assembly 3, separating it from the double-action locking assembly 9. When the door assembly 3 is opened to the correct position, the piston rod of the drive cylinder 77 extends, causing the locking latch 76 to reset.
[0028] A double-action locking assembly 9 is fixedly installed on the side of the door panel assembly 3 away from the through-shaft hinge 8. The double-action locking assembly 9 includes a linkage lock head 90 fixedly installed on the door panel assembly 3, a handle 91 for driving the linkage lock head 90 to extend and retract, and an electric push rod 92 for driving the handle 91 to swing. When the handle 91 is turned by manual force or the electric push rod 92, the locking pin of the linkage lock head 90 extends or retracts, realizing the locking and unlocking actions. In this embodiment, the linkage lock head 90 consists of three sets of lock heads, which are linked by a gear and rack structure. The double-action locking assembly 9 is a mature product selected from the market, and its specific locking and unlocking actions are not described in detail here. Of course, a commercially available direct-insertion lock can also be used, which is inserted into the corresponding groove of the locking latch 76.
[0029] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.
Claims
1. A passive emergency drainage shielding door, comprising a building main structure (1), a doorway set on the building main structure (1), and an embedded door frame (2) fixedly installed in the doorway, characterized in that: A door leaf assembly (3) is rotatably provided on the right side of the embedded door frame (2), a door leaf drive assembly (6) for opening or closing the door leaf assembly (3) is provided on the top of the embedded door frame (2), and a passive drive assembly (7) for opening the door leaf assembly (3) is provided on one side of the main building structure (1).
2. The passive emergency drainage shielding door according to claim 1, characterized in that: The door assembly (3) is rotatably mounted on the right side of the embedded door frame (2) via a through-shaft hinge (8). The top of the through-shaft hinge (8) is poweredly connected to the commutator (10). The two power input ends of the commutator (10) are respectively connected to the door drive assembly (6) and the passive drive assembly (7). When the door drive assembly (6) or the passive drive assembly (7) drives the commutator (10) to rotate, it drives the through-shaft hinge (8) to rotate, thereby opening and closing the door assembly (3).
3. The passive emergency drainage shielding door according to claim 2, characterized in that: An angle sensor (11) is installed at the bottom of the through-shaft hinge (8), and the angle sensor (11) is used to detect the angular position of the door assembly (3) rotation.
4. The passive emergency drainage shielded door according to claim 2 or 3, characterized in that: A double-action locking assembly (9) is provided on one side of the door assembly (3). The double-action locking assembly (9) includes a linkage lock head (90) fixedly installed on the door assembly (3), a handle (91) for driving the linkage lock head (90) to extend and retract, and an electric push rod (92) for driving the handle (91) to swing. When the handle (91) is turned by human force or electric push rod (92), the linkage lock head (90) extends or retracts, realizing locking and unlocking.
5. The passive emergency drainage shielding door according to claim 4, characterized in that: The passive drive assembly (7) includes a pneumatic motor (70), a time-delay clutch (71), an air pump (72), a float level controller (73), and a first controller (74). The output end of the pneumatic motor (70) is poweredly connected to the time-delay clutch (71), and one end of the time-delay clutch (71) is poweredly connected to the commutator (10). The air pump (72) is connected to the pneumatic motor (70) through an air pipe and a control valve. The float level controller (73) is electrically connected to the first controller (74). When the water level rises to a specified height, the float level controller (73) sends a control signal to the first controller (74). The first controller (74) controls the pneumatic motor (70) to rotate, which drives the door assembly (3) to rotate for a delay through the time-delay clutch (71), the commutator (10), and the through-shaft hinge (8).
6. The passive emergency drainage shielding door according to claim 5, characterized in that: The passive drive assembly (7) also includes multiple limiting pins (75) fixedly installed on one side of the embedded door frame (2), a locking latch (76) horizontally slidably installed on the limiting pins (75), and a drive cylinder (77) fixedly installed on the main building structure (1). The output end of the drive cylinder (77) is fixedly connected to the locking latch (76). When the float level controller (73) sends a control signal to the first controller (74), the first controller (74) controls the piston rod of the drive cylinder (77) to retract, driving the locking latch (76) to move horizontally away from the door assembly (3) and separate from the double-action locking assembly (9).
7. The passive emergency drainage shielded door according to claim 2 or 3, characterized in that: The door drive assembly (6) includes two second controllers (60) on both sides of the main building structure (1), a geared drive motor (61), and a main clutch (62) at the output end of the geared drive motor (61). One end of the main clutch (62) is connected to the commutator (10) via a coupling. The second controllers (60) control the rotation of the geared drive motor (61) to open and close the door assembly (3).
8. The passive emergency drainage shielding door according to claim 1, characterized in that: A sealing strip (4) is provided on the inner side of the embedded door frame (2). When the door panel assembly (3) is closed inside the embedded door frame (2), the sealing strip (4) seals the door panel assembly (3) and the embedded door frame (2).
9. The passive emergency drainage shielding door according to claim 1 or 8, characterized in that: A buffer (5) is provided on one side of the main building structure (1), and the door assembly (3) contacts the buffer (5) after it is opened 180°.