Steel structure protective air-tight door

Abstract

The utility model relates to a steel structure protective air-tight door, which belongs to the technical field of building safety and protective engineering and comprises a door frame, a door leaf is hinged to an inner cavity of the door frame through a plurality of groups of door hinges, a fixing groove is formed in the inner cavity of the door frame, and a reinforcing rib is fixed in an inner cavity of the fixing groove. A vibration sensor is fixed to the top of the outer surface of the door leaf, a sealing mechanism used for improving the sealing effect is arranged on the outer side of the door leaf, and a protection mechanism used for improving the protection capacity of the door leaf is arranged in an inner cavity of the door leaf. According to the steel structure protective air-tight door, through composite application of a steel structure and a damping material, the door leaf has the light weight and the protective performance at the same time, the design of multiple sets of hinges and an anti-explosion lock cylinder is adopted, the safety and the impact resistance of the door leaf are improved, the air-tight performance of the door leaf is guaranteed through the design of a sealing mechanism, maintenance is easy and convenient, and the service life of the door leaf is prolonged. And subsequent disassembly and assembly of the elastic sealing strip by workers are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of building safety and protection engineering, in particular to a steel structure protective closed door. Background Art

[0002] Steel structure protective sealed doors are set at the outermost side of the entrance and exit. They have the functions of blocking shock waves and isolating toxic agents. They are usually made of steel materials and have high strength and durability. They are suitable for building spaces that require high protective sealing performance, such as underground projects, military facilities, nuclear facilities, biochemical laboratories and important material storage depots.

[0003] Through searching, it is found that Chinese patent announcement number: CN221119719U discloses a steel structure protective airtight door, including a door frame assembly, a sealing assembly and a fixing assembly, the door frame assembly includes a door frame, a connecting rod and a closed door, the door frame is rotatably connected to the connecting rod, and the outer wall of the connecting rod is fixedly connected to the closed door, by using the connecting rod to rotatably connect the closed door to the door frame, it is convenient to make the closed door rotate smoothly, by arranging the sealing assembly and the fixing assembly inside the closed door, it is convenient to prevent the closed door from leaking and to fix the closed door, by rotating the connecting plate, the connecting plate drives the threaded rod to rotate along the thread inside the first connecting block, it is convenient to push the sealing rubber pad to move, so that the sealing rubber pad contacts the door frame for sealing treatment, but the protective airtight door should be able to block shock waves and meet the corresponding resistance requirements, so that it needs to have a higher protection ability. At present, the protective doors on the market mainly improve their protection ability by increasing the thickness of the door panel and using high-strength materials, but the result of doing so often leads to excessive weight of the door, which is not convenient for installation and use, and the sealing performance cannot be effectively guaranteed, which is difficult to meet the needs of modern high-standard protection projects. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a steel structure protective airtight door, which has the advantages of light door leaf and good protective performance. It solves the problem that the protective doors on the market currently improve their protective capabilities mainly by increasing the thickness of the door panels, using high-strength materials, etc., but the result of doing so often leads to the door being too heavy, inconvenient to install and use, and the sealing performance cannot be effectively guaranteed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel structure protective airtight door, comprising a door frame, the inner cavity of the door frame is hingedly connected with a door leaf through multiple sets of door hinges, the inner cavity of the door frame is provided with a fixing groove, the inner cavity of the fixing groove is fixed with a reinforcing rib, a vibration sensor is fixed on the top of the outer surface of the door leaf, a sealing mechanism for improving the sealing effect is provided on the outer side of the door leaf, and a protective mechanism for improving the protective ability of the door leaf is provided in the inner cavity of the door leaf;

[0006] The sealing mechanism includes a sealing groove, four elastic sealing strips, a plurality of plug-in blocks, a plurality of plug rods, a plurality of telescopic rods, a plurality of return springs, a plurality of movable plates and a plurality of clamping rods. The sealing groove is opened on the outer side of the door leaf, the elastic sealing strip is arranged in the inner cavity of the sealing groove, the plug-in block is fixed to the back side of the elastic sealing strip, the inner cavity of the sealing groove is provided with a plurality of slots, a plurality of the plug rods are fixed in the inner cavity of the slots, the inner cavity of the door leaf and the left and right sides of the sealing groove are provided with mounting grooves, the two telescopic rods are fixed at the top and bottom of the opposite side of the mounting grooves at the left and right ends, the return spring is movably sleeved on the outer surface of the telescopic rod, the movable plate is fixed at the opposite side of the telescopic rods at the left and right ends, and the clamping rod is fixed at the upper and lower ends of the opposite side of the movable plates at the left and right ends.

[0007] By adopting this technical solution, the sealing mechanism design ensures the airtightness of the door leaf, simplifies maintenance, and facilitates the subsequent disassembly and assembly of the elastic sealing strip by the staff.

[0008] Furthermore, a handle is fixed on the outer surface of the door leaf, and the size of the door leaf is matched with the size of the inner cavity of the door frame.

[0009] By adopting this technical solution, the provided handle can facilitate the staff to open and close the door leaf.

[0010] Furthermore, the size of the inner cavity of the sealing groove is adapted to the size of the elastic sealing strip, the plug-in block is fixed at the upper and lower ends of the transverse center axis of the back side of the elastic sealing strip, and the size of the plug-in block is adapted to the size of the inner cavity of the slot.

[0011] By adopting this technical solution, the elastic sealing strip inserted into one end of the sealing groove can be positioned and fixed.

[0012] Furthermore, a plurality of plug-in slots are provided on the back of the plug-in block, and the inner diameter of the plug-in slots is matched with the outer diameter of the plug-in rod.

[0013] By adopting this technical solution, the plug-in rod can be easily inserted into the inner cavity of the plug-in slot, and the position of the plug-in block can be positioned.

[0014] Furthermore, two ends of the return spring are respectively fixedly connected to one side of the mounting slot opposite to the movable plate, a protrusion is fixed on the outer surface of the movable plate, and the size of the movable plate is smaller than the size of the inner cavity of the mounting slot.

[0015] By adopting this technical solution, the provided protrusions can facilitate the staff to move the movable plate, thereby pulling the elastic sealing strip out of the inner cavity of the sealing groove.

[0016] Furthermore, the other end of the clamping rod passes through the installation groove and extends to the inner cavity of the sealing groove. The top and bottom of the left and right sides of the elastic sealing strip are both provided with clamping grooves, and the inner diameter of the clamping groove is adapted to the outer diameter of the clamping rod.

[0017] By adopting this technical solution, the provided card slot can facilitate the entry of the card rod, thereby fixing the position of the elastic sealing strip.

[0018] Furthermore, the protective mechanism includes multiple layers of composite steel plates, multiple layers of damping materials and a support frame. The door leaf is composed of multiple layers of composite steel plates. The damping material is arranged between the opposite sides of the two layers of composite steel plates on the front and rear sides, and the support frame is arranged between the opposite sides of the two layers of composite steel plates in the middle.

[0019] By adopting this technical solution and through the composite application of steel structure and damping material, the door leaf is made to be both lightweight and protective.

[0020] Furthermore, the support frame is a grid-shaped frame.

[0021] By adopting this technical solution, the overall rigidity and anti-deformation ability of the door leaf are further enhanced.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This steel structure protective closed door, through the composite application of steel structure and damping materials, achieves a door leaf that is both light and protective. It adopts a design of multiple sets of hinges and is equipped with an explosion-proof lock core, which improves the safety and impact resistance of the door leaf. The design of the sealing mechanism ensures the sealing performance of the door leaf, and it is easy to maintain, making it convenient for staff to subsequently disassemble and assemble the elastic sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the sealing groove and elastic sealing strip structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the sealing mechanism structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the back structure of the elastic sealing strip of the utility model;

[0028] Figure 5 This is a schematic diagram of the protective mechanism structure of the utility model.

[0029] In the figure: 1. door frame; 2. door leaf; 3. fixing groove; 4. reinforcing rib; 5. vibration sensor; 6. sealing mechanism; 61. sealing groove; 62. elastic sealing strip; 63. plug-in block; 64. plug-in rod; 65. telescopic rod; 66. return spring; 67. movable plate; 68. clamping rod; 69. slot; 7. protective mechanism; 71. composite steel plate; 72. damping material; 73. support frame. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 A steel structure protective closed door in this embodiment includes a door frame 1, the inner cavity of the door frame 1 is hingedly connected to a door leaf 2 through multiple sets of door hinges, the inner cavity of the door frame 1 is provided with a fixing groove 3, the inner cavity of the fixing groove 3 is fixed with a reinforcing rib 4, and the reinforcing rib 4 is provided to improve the pressure resistance and impact resistance of the door frame 1, a vibration sensor 5 is fixed to the top of the outer surface of the door leaf 2, a sealing mechanism 6 for improving the sealing effect is provided on the outer side of the door leaf 2, and a protective mechanism 7 for improving the protective ability of the door leaf 2 is provided in the inner cavity of the door leaf 2.

[0032] In this embodiment, a handle is fixed on the outer surface of the door leaf 2, and the size of the door leaf 2 is matched with the size of the inner cavity of the door frame 1. During installation, the door frame 1 is first fixed in the reserved hole in the wall, and then the door leaf 2 is mounted on the door frame 1, and the gap between the door leaf 2 and the door frame 1 is ensured to be uniform through adjustment.

[0033] It should be noted that the steel structure protective sealed door is equipped with a lock with an explosion-proof lock core to ensure the safety performance of the door. When the door leaf 2 is impacted, the vibration sensor 5 can detect the vibration generated, thereby triggering the explosion-proof lock to automatically lock and prevent the door leaf 2 from being accidentally opened.

[0034] See also Figures 2 to 4In order to improve the sealing performance of the steel structure protective closed door, the sealing mechanism 6 in this embodiment includes a sealing groove 61, four elastic sealing strips 62, multiple plug-in blocks 63, multiple plug rods 64, multiple telescopic rods 65, multiple return springs 66, multiple movable plates 67 and multiple clamping rods 68. The sealing groove 61 is opened on the outer side of the door leaf 2, the elastic sealing strip 62 is arranged in the inner cavity of the sealing groove 61, the plug-in block 63 is fixed on the back side of the elastic sealing strip 62, the inner cavity of the sealing groove 61 is opened with multiple slots 69, and multiple plug-in rods 64 are fixed in the inner cavity of the slots 69. The elastic sealing strip 62 is inserted into the inner cavity of the sealing groove 61, and the two plug-in blocks 63 at the top and bottom of the back side of the elastic sealing strip 62 are inserted into the inner cavity of the slots 69. The plug-in groove on the back side of the plug-in block 63 can be sleeved on the outer surface of the multiple plug-in rods 64 in the slots 69, so as to locate and preliminarily fix the position of the elastic sealing strip 62.

[0035] In this embodiment, the inner cavity of the door leaf 2 is provided with installation grooves on the left and right sides of the sealing groove 61, two telescopic rods 65 are fixed at the top and bottom of the opposite sides of the installation grooves at the left and right ends, and the return spring 66 is movably sleeved on the outer surface of the telescopic rod 65. The movable plate 67 is fixed on the opposite side of the telescopic rod 65 at the left and right ends, and the clamping rod 68 is fixed at the upper and lower ends of the opposite side of the movable plates 67 at the left and right ends. When the elastic sealing strip 62 enters the inner cavity of the sealing groove 61, it will squeeze the clamping rods 68 on both sides, so that the clamping rod 68 pushes the movable plate 67 to move, so that the telescopic rod 65 and the return spring 66 are squeezed and shortened, so that the clamping rod 68 enters the inner cavity of the installation groove.

[0036] Among them, the size of the inner cavity of the sealing groove 61 is adapted to the size of the elastic sealing strip 62, the plug-in block 63 is fixed at the upper and lower ends of the transverse central axis of the back side of the elastic sealing strip 62, the size of the plug-in block 63 is adapted to the size of the inner cavity of the slot 69, and a plurality of plug-in slots are provided on the back side of the plug-in block 63, and the inner diameter of the plug-in slots is adapted to the outer diameter of the plug rod 64.

[0037] In addition, the two ends of the return spring 66 are respectively fixedly connected to the side opposite to the mounting groove and the movable plate 67. A protrusion is fixed on the outer surface of the movable plate 67. The size of the movable plate 67 is smaller than the size of the inner cavity of the mounting groove. The other end of the clamping rod 68 passes through the mounting groove and extends to the inner cavity of the sealing groove 61. The top and bottom of the left and right sides of the elastic sealing strip 62 are provided with clamping grooves, and the inner diameter of the clamping groove is adapted to the outer diameter of the clamping rod 68.

[0038] It can be understood that after the elastic sealing strip 62 is positioned, the grooves on its left and right sides are aligned with the mounting grooves of the clamping rod 68, so that the return spring 66 is not squeezed, thereby driving the telescopic rod 65 to push the movable plate 67 and the clamping rod 68 to move to the side close to the elastic sealing strip 62, so that the clamping rod 68 can enter the inner cavity of the groove, and the top and bottom of the elastic sealing strip 62 can be fixed to ensure that the door leaf 2 can achieve a good sealing effect when closed.

[0039] It should be noted that the contact surface between the door leaf 2 and the door frame 1 is coated with wear-resistant material to extend the service life of the elastic sealing strip 62 , and the width of the elastic sealing strip 62 is greater than the width of the inner cavity of the sealing groove 61 .

[0040] See also Figure 5 In order to ensure that the door leaf 2 can have both lightness and protective performance, the protective mechanism 7 in this embodiment includes a multi-layer composite steel plate 71, a multi-layer damping material 72 and a support frame 73. The door leaf 2 is composed of a multi-layer composite steel plate 71, and the damping material 72 is arranged between the two opposite sides of the composite steel plates 71 on the front and rear sides. The door leaf 2 is composed of a multi-layer composite steel plate 71, and the damping material 72 is filled between the composite steel plates 71 layers on the front and rear sides. The damping material 72 is a seismic isolation and vibration reduction material. Through the composite application of the composite steel plate 71 and the damping material 72, the door leaf 2 is both light and has protective performance. The support frame 73 is arranged between the two opposite sides of the middle composite steel plates 71.

[0041] In the present embodiment, the support frame 73 is a grid-shaped frame. The grid-shaped support frame 73 is added inside the door leaf 2 to further enhance the overall rigidity and anti-deformation capability of the door leaf 2 .

[0042] The working principle of the above embodiment is:

[0043] (1) A reinforcing rib 4 is added to the inner side of the door frame 1 to improve the compression and impact resistance of the door frame 1. During installation, the door frame 1 is first fixed in the reserved hole in the wall, and then the door leaf 2 is mounted on the door frame 1. The gap between the door leaf 2 and the door frame 1 is adjusted to ensure that it is uniform. When installing the elastic sealing strip 62, the elastic sealing strip 62 can be inserted into the inner cavity of the sealing groove 61, and the two plug-in blocks 63 at the top and bottom of the back of the elastic sealing strip 62 are inserted into the inner cavity of the slot 69. At this time, the plug-in groove on the back of the plug-in block 63 can be sleeved on the outer surface of the multiple plug-in rods 64 in the slot 69, so that the position of the elastic sealing strip 62 can be positioned and preliminarily fixed. Since the elastic sealing strip 6 When entering the inner cavity of the sealing groove 61, the clamping rods 68 on both sides are squeezed, so that the clamping rods 68 push the movable plate 67 to move, so that the telescopic rod 65 and the return spring 66 are squeezed and shortened, so that the clamping rod 68 enters the inner cavity of the installation groove. After the elastic sealing strip 62 is positioned, the clamping grooves on the left and right sides thereof are aligned with the installation grooves of the clamping rod 68, so that the return spring 66 is not squeezed, thereby driving the telescopic rod 65 to push the movable plate 67 and the clamping rod 68 to move to the side close to the elastic sealing strip 62, so that the clamping rod 68 can enter the inner cavity of the clamping groove, and the top and bottom of the elastic sealing strip 62 can be fixed, ensuring that the door leaf 2 can achieve a good sealing effect when closed.

[0044] (2) The door leaf 2 is composed of a plurality of composite steel plates 71. Damping material 72 is filled between the composite steel plates 71 on the front and rear sides. The damping material 72 is a seismic isolation and vibration reduction material. Through the combined application of the composite steel plates 71 and the damping material 72, the door leaf 2 is lightweight and has a protective performance. A grid-shaped support frame 73 is added inside the door leaf 2 to further enhance the overall rigidity and deformation resistance of the door leaf 2.

Claims

1. A steel structure protective closed door, comprising a door frame (1), characterized in that: The inner cavity of the door frame (1) is hingedly connected to a door leaf (2) via a plurality of door hinges; the inner cavity of the door frame (1) is provided with a fixing groove (3); a reinforcing rib (4) is fixed to the inner cavity of the fixing groove (3); a vibration sensor (5) is fixed to the top of the outer surface of the door leaf (2); a sealing mechanism (6) for improving the sealing effect is provided on the outer side of the door leaf (2); and a protective mechanism (7) for improving the protective capability of the door leaf (2) is provided in the inner cavity of the door leaf (2); The sealing mechanism (6) comprises a sealing groove (61), four elastic sealing strips (62), a plurality of plug-in blocks (63), a plurality of plug rods (64), a plurality of telescopic rods (65), a plurality of return springs (66), a plurality of movable plates (67) and a plurality of clamping rods (68); the sealing groove (61) is provided on the outer side of the door leaf (2); the elastic sealing strip (62) is provided in the inner cavity of the sealing groove (61); the plug-in blocks (63) are fixed on the back side of the elastic sealing strip (62); the inner cavity of the sealing groove (61) is provided with a plurality of slots ( 69), a plurality of the insertion rods (64) are fixed in the inner cavity of the slot (69), the inner cavity of the door leaf (2) and the left and right sides of the sealing groove (61) are provided with mounting grooves, the two telescopic rods (65) are fixed at the top and bottom of the opposite sides of the mounting grooves at the left and right ends, the return spring (66) is movably sleeved on the outer surface of the telescopic rod (65), the movable plate (67) is fixed at the opposite sides of the telescopic rods (65) at the left and right ends, and the clamping rod (68) is fixed at the upper and lower ends of the opposite sides of the movable plates (67) at the left and right ends.

2. A steel structure protective airtight door according to claim 1, characterized in that: A handle is fixed to the outer surface of the door leaf (2), and the size of the door leaf (2) is compatible with the size of the inner cavity of the door frame (1).

3. The steel structure protective closed door according to claim 1, characterized in that: The size of the inner cavity of the sealing groove (61) matches the size of the elastic sealing strip (62), the plug-in block (63) is fixed to the upper and lower ends of the transverse central axis of the back side of the elastic sealing strip (62), and the size of the plug-in block (63) matches the size of the inner cavity of the slot (69).

4. The steel structure protective airtight door according to claim 1, characterized in that: A plurality of plug-in slots are provided on the back of the plug-in block (63), and the inner diameter of the plug-in slots is matched to the outer diameter of the plug-in rod (64).

5. The steel structure protective airtight door according to claim 1, characterized in that: The two ends of the return spring (66) are respectively fixedly connected to the side of the mounting groove opposite to the movable plate (67); a protrusion is fixed to the outer surface of the movable plate (67); and the size of the movable plate (67) is smaller than the size of the inner cavity of the mounting groove.

6. The steel structure protective airtight door according to claim 1, characterized in that: The other end of the clamping rod (68) passes through the installation groove and extends to the inner cavity of the sealing groove (61). The top and bottom of the left and right sides of the elastic sealing strip (62) are both provided with clamping grooves, and the inner diameter of the clamping groove is adapted to the outer diameter of the clamping rod (68).

7. The steel structure protective airtight door according to claim 1, characterized in that: The protection mechanism (7) comprises a multi-layer composite steel plate (71), a multi-layer damping material (72) and a support frame (73); the door leaf (2) is composed of the multi-layer composite steel plate (71); the damping material (72) is arranged between opposite sides of two layers of composite steel plates (71) at the front and rear sides; and the support frame (73) is arranged between opposite sides of two layers of composite steel plates (71) at the middle.

8. The steel structure protective closed door according to claim 7, characterized in that: The support frame (73) is a grid-shaped frame.

Images