Rear anchoring type modularized single-leaf flood-proof air-tight door

Abstract

The utility model discloses a rear anchoring type modularized single-leaf flood-proof air-tight door which comprises a door frame structure, a door leaf, a hinge and a locking structure, the door frame structure is arranged in a door opening, the door leaf is connected to a wall through the hinge, and the locking structure is arranged on the rear side of the door leaf; the door frame structure comprises a door frame, a doorsill and an anchoring device, the anchoring device comprises an anchoring plate and an anchoring bolt, the anchoring plate is fixed on a wall through the anchoring bolt, the door frame is fixedly connected with the anchoring plate, and the doorsill is fixed on the ground through the anchoring bolt. The modularized structure is adopted, the structural complexity of the protective door is effectively reduced, automatic and intelligent production is achieved, the production cost is reduced, the production efficiency is effectively improved, and the modularized structure can effectively reduce the installation difficulty and the operation complexity degree and improve the construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of airtight protective door technology, specifically to a rear-anchored modular single-leaf flood-proof airtight door. Background Technology

[0002] Lightweight protective doors are widely used in underground engineering projects, generally serving the functions of personnel protection, flood prevention, and moisture protection. For example, the hydraulic swing-rotor type protective and flood-proof door disclosed in CN104358239B serves both sealing and flood prevention functions. However, the aforementioned airtight doors are heavy-duty protective doors, limiting their practical application. For most underground projects, such as subways and underground shopping malls, lightweight protective doors are more commonly used. However, existing flood-proof airtight doors have complex structures, leading to high production costs. Furthermore, the current installation method, which involves pre-anchoring during concrete pouring, presents inconvenience and operational difficulties. This utility model provides a rear-anchored modular single-leaf flood-proof airtight door to solve these problems. Utility Model Content

[0003] This utility model provides a rear-anchored modular single-leaf floodproof airtight door, which adopts a modular structure and a rear-anchored installation method, which simplifies the structure and improves the convenience and efficiency of construction operations.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0005] A rear-anchored modular single-leaf floodproof airtight door includes a door frame structure, a door leaf, hinges, and a locking structure. The door frame structure is located in a door opening, the door leaf is connected to the wall via hinges, and the locking structure is located on the rear side of the door leaf.

[0006] The door frame structure includes a door frame, a threshold, and an anchoring device. The anchoring device includes an anchor plate and an anchor bolt. The anchor plate is fixed to the wall by the anchor bolt. The door frame is fixedly connected to the anchor plate, and the threshold is fixed to the ground by the anchor bolt.

[0007] Furthermore, the door leaf includes a panel and a frame. The panel is located on the front and rear sides of the frame. The frame includes crossbeams, longitudinal beams, side panels, and reinforcing support plates. The crossbeams are spaced apart, the longitudinal beams are spaced apart between the crossbeams, the side panels are located at the ends of the crossbeams, and the reinforcing support plates are located at the connection between the side panels and the crossbeams.

[0008] Furthermore, the door frame includes a front door frame panel, a door casing panel, and a rear door frame panel, with the front door frame panel and the rear door frame panel respectively located on the front and rear sides of the door casing panel.

[0009] Furthermore, the locking structure includes a rotating locking head, a mounting base, a connecting rod, and a handle assembly. The mounting base is disposed on the door leaf, the rotating locking head and the handle assembly are disposed on the mounting base, the connecting rod is movably connected to the rotating locking head, and the handle assembly is movably connected to the connecting rod.

[0010] Furthermore, the handle assembly includes a handle and a linkage shaft, the linkage shaft being movably disposed in the mounting base, the handle being disposed at both ends of the linkage shaft, and the handle located on the rear side being movably connected to the connecting rod.

[0011] Furthermore, the hinge includes a hinge base and a hinge arm. The hinge base is fixedly mounted on the anchor plate, the hinge arm is movably mounted in the hinge base, and the door leaf is fixedly connected to the hinge arm.

[0012] Furthermore, the bottom of the door leaf is provided with a threshold sealing strip, which contacts the threshold when the door is locked; the threshold sealing strip includes a sealing strip and a pressure plate, and the sealing strip is set on the panel through the pressure plate.

[0013] Furthermore, the threshold is an arc-shaped threshold, and its interior is filled with polyurethane.

[0014] Furthermore, a sealing strip is provided on the front door frame panel.

[0015] The beneficial effects of this utility model are as follows:

[0016] The modular structure effectively reduces the structural complexity of the security door, enabling automated and intelligent production. This not only reduces production costs but also effectively improves production efficiency. Furthermore, the modular structure effectively reduces installation difficulty and operational complexity, thereby improving construction efficiency.

[0017] The use of anchored connections and post-anchoring installation methods reduces the structural complexity of the door frame and enhances the installation strength of the security door while improving connection strength and stability, resulting in faster overall construction speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation state of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the door frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the locking structure and door connection state of this utility model;

[0022] Figure 5This is a schematic diagram of the internal structure of the door leaf of this utility model;

[0023] Figure 6 A schematic diagram showing the setting status of the door leaf bottom threshold sealing strip of this utility model;

[0024] Figure 7 This is a schematic diagram of the overall structure of the hinge of this utility model;

[0025] Figure 8 This is a schematic diagram of the internal structure of the hinge of this utility model;

[0026] Figure 9 This is a schematic diagram of the overall structure of the locking mechanism of this utility model;

[0027] Figure 10 This is a schematic diagram showing the connection state between the anchoring device of this utility model and the door frame;

[0028] Figure 11 This is a schematic diagram of the anchoring device structure for connecting the door frame and hinges according to this utility model.

[0029] Figure 12 This is a schematic diagram of the anchoring device structure of the present invention connected to the door frame.

[0030] Reference numerals: 1. Door frame structure; 11. Door frame; 111. Front door frame panel; 112. Door casing panel; 113. Rear door frame panel; 12. Threshold; 13. Anchoring device; 131. Anchor plate; 132. Anchor bolt; 2. Door leaf; 21. Panel; 22. Frame; 221. Horizontal beam; 222. Longitudinal beam; 223. Side panel; 224. Reinforcing support plate; 3. Hinge; 31. Hinge seat; 32. Hinge arm; 4. Locking structure; 41. Rotary locking head; 42. Mounting base; 43. Linkage rod; 44. Handle assembly. Detailed Implementation

[0031] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0033] like Figure 1 , 2 As shown, a rear-anchored modular single-leaf floodproof airtight door includes a door frame structure 1, a door leaf 2, a hinge 3, and a locking structure 4. The door frame structure 1 is located in the door opening, the door leaf 2 is connected to the wall through the hinge 3, and the locking structure 4 is located on the rear side of the door leaf 2.

[0034] The door frame structure 1, door leaf 2, hinge 3, and locking structure 4 of this utility model adopt a modular structure. Compared with the existing integrated airtight door, its structure reduces the complexity of the airtight door. Each module can be produced independently, which allows for intelligent assembly line production, reducing production costs and improving production efficiency. Installation can be completed by mutual assembly, achieving rapid assembly. Furthermore, through the post-anchoring installation method, combined with the modular structure, it effectively meets the needs of civil defense and ensures safety and reliability during use. At the same time, it has the advantages of high structural strength, simple installation and operation, and high construction efficiency. It will not interfere with the previous concrete pouring and also improves the construction efficiency of the concrete structure.

[0035] like Figure 2 , 3 As shown in Figures 10, 11, and 12, the door frame structure 1 includes a door frame 11, a threshold 12, and an anchoring device 13. The anchoring device 13 includes an anchor plate 131 and an anchor bolt 132. The anchor plate 131 is fixed to the wall by the anchor bolt 132 and is installed on the wall using a rear anchoring method. The door frame 11 is fixedly connected to the anchor plate 131, and the threshold 12 is fixed to the ground by the anchor bolt 132. The anchor bolt 132 is fixed to the ground using a rear anchoring method.

[0036] like Figure 2 , 3As shown in Figures 10, 11, and 12, after the concrete structure is fully constructed, the anchor plate 131 is fixedly connected to the door frame 11 using a post-anchoring installation method via anchor bolts 132. The anchor plate 131 is then connected to the wall via anchor bolts 132, thus firmly anchoring the door frame 11 to the wall. Anchoring offers advantages such as high fixing strength and stability. The post-anchoring installation method improves the efficiency of both concrete pouring and door installation, and eliminates the need for coordination during construction, simplifying the operation and reducing construction difficulty. The anchor plate 131 also serves as the installation base for the hinge 3. During hinge 3 installation, it is fixed to the anchor plate 131 with bolts, improving the connection stability and strength of the hinge 3 while reducing the construction difficulty. The threshold 12 is located at the bottom of the threshold 11 and anchored to the ground via anchor bolts 132, offering advantages such as high connection strength and convenient assembly / disassembly.

[0037] Furthermore, the anchoring device 13 is provided with a locking seat, and when locked, the locking head 41 is rotated to be located in the locking seat of the anchoring device 13.

[0038] like Figure 3 As shown, the door frame 11 further includes a front door frame panel 111, a door sleeve panel 112 and a rear door frame panel 113, with the front door frame panel 111 and the rear door frame panel 113 respectively located on the front and rear sides of the door sleeve panel 112.

[0039] like Figure 3 As shown, the anchor plate 131 is an L-shaped plate, which is fixedly connected to the door frame 11. The anchor plate 131 is connected to the front door frame plate 111 and the door sleeve plate 112 of the door frame 11 to ensure the connection strength and thus ensure the connection stability of the door frame 11.

[0040] like Figure 3 As shown, furthermore, corner reinforcing plates are provided at the corners of the door frame 11 to enhance the overall structural strength of the door frame 11 and achieve cooperation with the anchoring device 13. When installed using the anchoring device 13, the door frame 11 is subjected to a large overall force and is prone to deformation under large impacts. In order to cooperate with the rear anchoring installation method, corner reinforcing plates are used to strengthen the structure of the door frame 11, ensuring the structural strength of the door frame 11. Moreover, the improved structural strength of the door frame 11 makes the anchoring connection method safer and more stable.

[0041] Furthermore, the door frame 11 is roll-formed, which results in high structural strength and higher production efficiency.

[0042] like Figure 4 , 5As shown, the door leaf 2 further includes a panel 21 and a frame 22. The panel 21 is disposed on the front and rear sides of the frame 22. The frame 22 includes a crossbeam 221, a longitudinal beam 222, a side plate 223, and a reinforcing support plate 224. The crossbeams 221 are spaced apart, the longitudinal beams 222 are spaced apart between the crossbeams 221, the side plate 223 is disposed at the end of the crossbeam 221, and the reinforcing support plate 224 is disposed at the connection between the side plate 223 and the crossbeam 221.

[0043] Furthermore, the crossbeam 221 and the longitudinal beam 222 are cold-formed hollow square tubes, and the side plate 223 and the reinforcing support plate 224 are both steel plates. The reinforcing support plate 224 is provided at the connection between the side plate 223 and the crossbeam 221 to improve the structural strength.

[0044] Furthermore, the panel 21 has a side, and the front and rear panels 21 are fastened to the front and rear sides of the frame 22. The panel 21 is fixed to the frame 22 by rivet nuts. The reinforcing support plate 224 is provided at the connection between the panel 21 and the frame 22, which plays a role in structural reinforcement.

[0045] like Figure 6 As shown, the bottom of the door leaf 2 is provided with a threshold sealing strip. When the door is locked, the threshold sealing strip contacts the threshold 12 to ensure a sealing effect. The threshold sealing strip includes a sealing strip and a pressure plate. The sealing strip is set on the panel 21 through the pressure plate.

[0046] like Figure 4 , 9 As shown, the locking structure 4 further includes a rotating locking head 41, a mounting base 42, a connecting rod 43, and a handle assembly 44. The mounting base 42 is fixedly mounted on the door leaf 2. The rotating locking head 41 and the handle assembly 44 are mounted on the mounting base 42 and rotate about the mounting base 42. The connecting rod 43 is movably connected to the rotating locking head 41, and the handle assembly 44 is movably connected to the connecting rod 43. The connecting rod 43 connects the rotating locking head 41 and the handle assembly. 44. The rotary locking head 41 is located at the end of the connecting rod 43, and the handle assembly 44 is connected to the middle of the connecting rod 43. Both the rotary locking head 41 and the handle assembly 44 are connected to the connecting rod 43 by a pin. When the handle moves, the connecting rod 43, which uses a rigid rod, will drive the rotary locking head 41 to make synchronous movements along the same trajectory. The handle assembly 44 includes a handle and a linkage shaft. The linkage shaft is movably disposed in the mounting base 42. The handle is disposed at both ends of the linkage shaft. The handle rotates around the linkage shaft. The handle located on the rear side is movably connected to the connecting rod 43.

[0047] The operating principle of the locking structure 4 is as follows: The operator moves the handle up and down, and the handle rotates up and down around the linkage shaft. When the handle rotates, the connecting rod 43 moves with the handle. The connecting rod 43 drives the rotating locking head 41 connected to it to move. The movement of the rotating locking head 41 is consistent with the movement of the handle. When the handle is fully open, the rotating locking head 41 also rotates out of the locking groove on the door frame, realizing the opening of the lock.

[0048] like Figure 7 , 8 As shown, the hinge 3 further includes a hinge base 31 and a hinge arm 32. The hinge base 31 is fixedly mounted on the anchor plate 131, and the hinge arm 32 is movably mounted on the hinge base 31 via a bearing. The door leaf 2 is fixedly connected to the hinge arm 32.

[0049] Furthermore, the hinge arm 32 includes a hinge shaft and a connecting arm. The connecting arm is connected to the hinge seat 31 via the hinge shaft, and the hinge shaft is movably mounted on the hinge seat 31 via a bearing.

[0050] Furthermore, the threshold 12 is an arc-shaped threshold filled with polyurethane. The threshold sealing strip at the bottom of the door leaf 2 cooperates with the threshold 12. When the door is locked, the threshold sealing strip contacts and adheres to the threshold 12, and a seal is achieved by squeezing the threshold sealing strip.

[0051] Furthermore, a sealing strip is provided on the front door frame panel 111.

[0052] When installing this utility model, the door frame structure 1, door leaf 2, hinge 3, and locking structure 4 are first prefabricated in the factory and then transported to the construction site. After the structural construction is completed, when constructing the flood-proof airtight door, the door frame 11 is installed in the wall using the anchoring device 13 and the threshold 12 is anchored to the ground using the anchor bolts 132. After the door frame structure 1 is installed, the hinge 3 is installed on the anchor plate 131. Alternatively, the hinge 3 can be pre-installed on the anchor plate 131 in the factory. The locking structure 3 is also pre-installed on the door leaf 2 in the factory. The door leaf 2 is then hoisted on site. While in the hoisted state, the door leaf 2 is connected to the hinge 3. Finally, the locking structure 3 is tested and, once qualified, the entire installation process is complete.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this 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 this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rear-anchored modular single-leaf flood-proof airtight door, characterized in that: It includes a door frame structure (1), a door leaf (2), a hinge (3) and a locking structure (4). The door frame structure (1) is located in the door opening, the door leaf (2) is connected to the wall by the hinge (3), and the locking structure (4) is located on the rear side of the door leaf (2). The door frame structure (1) includes a door frame (11), a threshold (12) and an anchoring device (13). The anchoring device (13) includes an anchor plate (131) and an anchor bolt (132). The anchor plate (131) is fixed to the wall by the anchor bolt (132). The door frame (11) is fixedly connected to the anchor plate (131). The threshold (12) is fixed to the ground by the anchor bolt (132).

2. The rear-anchored modular single-leaf flood-proof airtight door according to claim 1, characterized in that: The door leaf (2) includes a panel (21) and a frame (22). The panel (21) is located on the front and rear sides of the frame (22). The frame (22) includes a crossbeam (221), a longitudinal beam (222), a side plate (223), and a reinforcing support plate (224). The crossbeams (221) are spaced apart, the longitudinal beams (222) are spaced apart between the crossbeams (221), the side plate (223) is located at the end of the crossbeam (221), and the reinforcing support plate (224) is located at the connection between the side plate (223) and the crossbeam (221).

3. The rear-anchored modular single-leaf flood-proof airtight door according to claim 1, characterized in that: The door frame (11) includes a front door frame panel (111), a door casing panel (112) and a rear door frame panel (113), with the front door frame panel (111) and the rear door frame panel (113) respectively located on the front and rear sides of the door casing panel (112).

4. A rear-anchored modular single-leaf flood-proof airtight door according to claim 1, characterized in that: The locking structure (4) includes a rotating locking head (41), a mounting base (42), a connecting rod (43), and a handle assembly (44). The mounting base (42) is mounted on the door leaf (2). The rotating locking head (41) and the handle assembly (44) are mounted on the mounting base (42). The connecting rod (43) is movably connected to the rotating locking head (41), and the handle assembly (44) is movably connected to the connecting rod (43).

5. A rear-anchored modular single-leaf flood-proof airtight door according to claim 4, characterized in that: The handle assembly (44) includes a handle and a linkage shaft. The linkage shaft is movably disposed in the mounting base (42). The handle is disposed at both ends of the linkage shaft. The handle located on the rear side is movably connected to the connecting rod (43).

6. A rear-anchored modular single-leaf flood-proof airtight door according to claim 1, characterized in that: The hinge (3) includes a hinge base (31) and a hinge arm (32). The hinge base (31) is fixedly mounted on the anchor plate (131), and the hinge arm (32) is movably mounted in the hinge base (31). The door leaf (2) is fixedly connected to the hinge arm (32).

7. A rear-anchored modular single-leaf flood-proof airtight door according to claim 1, characterized in that: The bottom of the door leaf (2) is provided with a threshold sealing strip. When the door is locked, the threshold sealing strip contacts the threshold (12). The threshold sealing strip includes a sealing strip and a pressure plate. The sealing strip is set on the panel (21) through the pressure plate.

8. A rear-anchored modular single-leaf flood-proof airtight door according to claim 1, characterized in that: The threshold (12) is an arc-shaped threshold, and its interior is filled with polyurethane.

9. A rear-anchored modular single-leaf flood-proof airtight door according to claim 3, characterized in that: A sealing strip is provided on the front door frame panel (111).

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