A reinforced concrete protective airtight door
A reinforced concrete and airtight door technology, which is applied in sealing devices, anti-war damage, window sills/thresholds, etc., can solve the problems of inconvenient lifting, etc., and achieve the effect of simple structure, increased extrusion, and convenient use
Active Publication Date: 2020-06-09
山东周力人防设备有限公司
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Problems solved by technology
The invention is mainly used to solve the problem that the threshold on the reinforced concrete protective airtight door is inconvenient to lift
Method used
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Embodiment Construction
[0020] use Figure 1-Figure 5 A reinforced concrete protective airtight door according to an embodiment of the present invention is described as follows.
[0021] like figure 1 As shown, a reinforced concrete protective airtight door according to the present invention includes a reinforced concrete door 1, a door frame 3, an air blowing module 4 and a threshold 10, and the reinforced concrete door 1 is rotatably connected to the door frame 3 through a connecting seat 2, and the door frame The bottom of the door 3 is provided with a groove 11; the inner side wall of the door frame 3 is slidingly connected with the threshold 10 through a chute 11, and the top surface of the chute 11 is higher than the bottom surface of the reinforced concrete door 1; the inside of the door frame 3 is provided with Two symmetrically arranged hydraulic cylinders 9, the telescopic rods of the hydraulic cylinders 9 are fixedly connected to the bottom surface of the threshold 10, and two symmetrical...
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The invention belongs to the technical field of steel bar concrete protecting doors, and specifically relates to a steel bar concrete protecting air-tight door. The steel bar concrete protecting air-tight door includes a steel bar concrete door, a door frame, air-blowing modules, and a threshold, wherein the steel bar concrete door is rotatably connected with the door frame through a connecting seat, and a sliding groove is formed in the bottom of the door frame; the inner side wall of the door frame is connected with the threshold through the sliding groove, and the top surface of the slidinggroove is higher than the bottom surface of the steel bar concrete door; two hydraulic cylinders are arranged in the door frame in a bilaterally symmetrical mode, extensible rods of the hydraulic cylinders are fixedly connected with the bottom surface of the threshold, two cylinder bodies are arranged in the door frame in a bilaterally symmetrical mode and are located on one sides of the hydraulic cylinders, pistons are arranged in the cylinder bodies, and cavities located below the pistons in the cylinder bodies communicate with lower cavities of the hydraulic cylinders through an oil guiding pipe; and the two air-blowing modules are arranged on the inner side wall of the door frame in a bilaterally symmetrical mode, and the air-blowing modules communicate with the cavities located abovethe pistons in the cylinder bodies.
Description
technical field [0001] The invention belongs to the technical field of reinforced concrete protective doors, in particular to a reinforced concrete protective airtight door. Background technique [0002] The protective airtight door is set on the outermost side of the entrance and exit, which has two functions of blocking shock waves and isolating poisonous agents. The protective airtight door should be able to block the shock wave and meet the corresponding resistance requirements. When the reinforced concrete protective airtight door is installed, the door frame is generally equipped with a threshold to ensure the airtightness of the reinforced concrete protective airtight door after installation. When the reinforced concrete airtight door is opened, it will affect the passage of moving parts such as vehicles, causing inconvenience in use. Therefore, there is also a threshold that can be lifted. When the door can be lifted, the threshold can be lowered to the same level as...
Claims
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IPC IPC(8): E06B5/10E06B1/70E06B7/16
Inventor 不公告发明人
Owner 山东周力人防设备有限公司