How to use the building door device
A door device and construction technology, applied in construction, building structure, door/window accessories, etc., can solve the problems of bumping children, the door is easily pinched by strong winds, etc., to prevent pinching, increase gravity and impulse Effect
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[0008] Below in conjunction with accompanying drawing, the present invention is further described:
[0009] figure 1 The structural diagram of the building door device is shown. The building door device includes a casing 1, a liquid storage container 2 and a brake container 3. The liquid storage container 2 is provided with a liquid overflow port 4, and the brake container 3 is provided with a liquid inlet 5. The liquid storage container The overflow port 4 of the container 2 communicates with the liquid inlet 5 of the brake container 3, and the liquid storage container 2 is provided with a fluid 6; A spring 8 is provided between the housing 1. The liquid storage container 2 is provided with an infusion tube 13, one end of the infusion tube 13 is connected with the overflow port 4, and the other end of the infusion tube 13 is connected with the liquid inlet 5 of the brake container 3; the liquid storage container 2 is provided with a return port 14. The brake container 3 is ...
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