发布人：http://www.kdjlm.com 发布时间：2020-06-05 16:34:03
Jinan roller shutter door maintenance, often encounter several problems, which requires us to understand more, the following together to understand the next roller shutter door there are some problems.
1. The thickness of rolling shutter door curtain: the thickness of the curtain is the thickness of the steel plate used for the curtain plate. At present, there is a phenomenon of Jerry building. Some manufacturers use the thicker steel plate curtain plate when they send it for testing. After obtaining the certificate of conformity, they use the thinner one for production. Because the thickness of the curtain plate of the rolling shutter door on the installation site is not easy to measure, it is easy to muddle through. Therefore, there are many rolling shutter doors because of the curtain The thickness does not meet the requirements, reducing the service life and fire resistance time.
2. Pre rolling problem of rolling shutter door: according to the routine, when the curtain is placed to the end, a circle of curtain shall be reserved on the upper part of the curtain shaft to reduce the tension of the weight of the curtain on the screw and prevent the rupture of a curtain plate. However, the rolling shutter door generally fails to do this at present, because the curtain rolls are all in the ceiling, which cannot be detected during the acceptance, there is a risk that the whole curtain will fall down after a long time of use, and there will be endless troubles.
Jinan roller shutter door
3. Structural problems of the lintel of roller shutter door: according to the national standard, the lintel structure must be set in Jinan roller shutter door. The sealing of the lintel is the key to fire prevention and smoke prevention. If the roller shutter door without lintel structure is installed, it can't play the role of fire prevention and barrier. It's like a virtual device. At present, the roller shutter door without lintel is widely used, which can't prevent the fire direction in case of fire The strong impact formed on the top causes the smoke to spread outwards through the lintel.
4. The problem of bottom beam of roller shutter door curtain: some products have no bottom beam, while some products have a bottom beam, but the material is thin. The bottom beam of the curtain is an important component to maintain the strength of the curtain. If there is no bottom beam under the curtain, it means that there is less a solid frame under the curtain, and the negative pressure of the fire will overturn the whole curtain.
5. The problem of rolling shutter door guide rail: insufficient depth of guide rail, improper structure and material are common problems in the installation of many large rolling shutter doors. Generally, there should be a main component that can bear high strength on the guide rail of large rolling shutter doors. However, many factories use simple light guide rail to replace it. Once a fire occurs, the curtain is easy to get out of the guide rail, which does not play a role in fire prevention.
6. Strength of roller shutter shaft: the strength of roller shutter shaft is also an important parameter of roller shutter door. At present, there are many unqualified products, which seriously affect the use of roller shutter door. The structure of roller shutter shaft mainly refers to the depth and structure of the shaft plug at both ends of the roller shutter shaft into the steel pipe. The shaft plug depth should be about 1 / 10 of the shaft length, and there should be two flanges and enough welds , some manufacturers' products are stuffed in a short time, even with a flange. This kind of door with Jerry built materials may break after being used for a period of time.
7. Jinan rolling shutter door drive chain problem: the drive chain is generally produced by the rolling machine manufacturer according to the lifting weight of the rolling machine, and is matched with the rolling machine. At present, the chain of some rolling doors, windows, curtain walls, curtain doors is generally too small According to the conventional standard, the rolling shutter door should have the safety device of broken chain. In fact, many doors do not have such a device, so there is a problem of uneasy and safe hidden rolling shutter door.
Jinan roller shutter door
8. The problems of roller shutter bearing, bearing frame and rolling machine: the installation of roller shutter shaft, bearing frame and rolling machine is not standardized and unified. Most of the factories that manufacture roller shutter do not have regular drawings and technical workers, which is also an urgent problem to be solved.
9. Transmission problem of the manual quick closing device when the rolling shutter door is powered off: in case of power interruption in the fire, the field personnel can use the manual quick release device to close the door. Now some rolling shutter doors are not equipped with this device, even if it is installed, it often fails to work due to quality problems.
10. Shutter door fire temperature control door closing problem: according to the national standard, when the fire occurs, the power supply is interrupted, and no one is operating on site, there should be a fire temperature fuse control door closing device. This function is particularly important for densely populated places, but such devices are not yet available.
At present, although the output of plastic profile in the market is very large, Jinan roller shutter door has one thing in common, that is, they are all white with single color, which can not meet the requirements of diversified wall decoration.