Multi-stage shielding gate
A shielding door and shielding device technology, applied in shielding, instrument parts, instruments, etc., can solve problems such as excessive shielding, insufficient shielding, and inability to adjust, and achieve the effects of easy use, low cost, and simple structure
Active Publication Date: 2005-01-12
CHINA ELECTRIC POWER RES INST
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Problems solved by technology
However, this kind of shielding door has single shielding performance, relatively high price, and is not easy to popularize and use.
And, because this plug-in type screen door is connected with the door frame by plugging and fitting to realize shielding, the combination between the screen door body and the door frame is particularly tight, so that it takes a lot of effort to open the door, and the opening method is extremely difficult. Inconvenient, which also reduces its usefulness
In short, the biggest deficiency of shielding doors in the prior art is that they all have their own fixed shielding range, which cannot be adjusted according to actual needs to adapt to different shielding requirements. Therefore, when dealing with environments with various shielding requirements, it may There is an issue of under-shielding or over-shielding, resulting in wasted resources
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[0015] An embodiment of the multi-stage shielded door of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0016] 1A-1C show assembly views of a multi-stage shielded door 20 according to this embodiment of the present invention. Among them, FIG. 1A is an assembly appearance diagram of a multi-stage shielded door. As shown in FIG. 1A , the multi-stage shielded door 20 of this embodiment includes a door body 1 , a door frame 2 , a door lock 3 , a connecting hinge 4 and a shielding device (not shown in the figure) and the like. FIG. 1B is a cross-sectional view of the door body in the sectional view taken along I-I of the assembly drawing of FIG. 1A , and FIG. 1C is a further detailed view of FIG. 1B . As shown in Fig. 1B-1C, the thickness of the door body 1 is H (in this embodiment, H=55mm); (such as reinforced keel) and other components. According to the size of the door body and the strength to be achieved, different st...
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The invention includes door body, doorframe, and shield assembly between door body and doorframe. The shield assembly includes one or more shield units. Using ant combination of each shield unit realizes relevant different shield efficiency. Multistage shields are adopted in the invention. Based on various degrees of compaction fitting between door body and doorframe, first stage shield, attenuation and dual shield etc can be realized. Shield stages can be adjusted based on need. Features are: simple structure, easy of use.
Description
technical field [0001] The present invention generally relates to the shielding technology of buildings, and more specifically relates to how to realize the shielding of building entrances that require shielding through shielded doors, that is, the technology that can realize multi-level shielding according to the shielding level of buildings. Background technique [0002] The screen door is an important part of the shielded building, and it is a difficult point to realize the overall shielding of the building. The shielding level of the screen door should match the shielding of the main body of the building. One of the keys to solving the shielding of shielded buildings is to deal with the shielding of shielded doors. [0003] Among the shielding doors commonly used in the prior art to realize building shielding, domestic shielding doors are generally single-stage compacted. Such shielding doors have relatively poor shielding performance, and it is difficult to meet the ide...
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IPC IPC(8): G12B17/00
Inventor 叶旭明王天彪
Owner CHINA ELECTRIC POWER RES INST