Iron Padlock Has A Long History

  •    iron padlock in China has a long history. According to the textual research of unearthed cultural relics and historical documents, the lock has a history of 5,000 years. The "Bone Cuo" and "Stone Cuo" of Yangshao Culture in the Neolithic Period are the prototypes of the lock and key. "Go", an awl made of bones to untie knots in ancient times, is the embryonic form of ancient keys. Therefore, "Zhu" is one of the oldest locks in our country.

       Ancient locks were originally called ``mu, closed, key, chain, and seal''. In the early days, it was made of bamboo and wood, which originated from door bolts. From the Spring and Autumn and Warring States to Luban, there was an Olympic organ in the wooden lock, and the metal reed structure lock (also known as the groove lock) was made in the Eastern Han Dynasty. When entering the Tang Dynasty, most of the locks were gold, silver, copper, iron, and wood. In the Ming Dynasty, there were four types of locks, namely, wide locks, Citi locks, jewelry locks, and torture locks. In fact, there is a type of combination lock, but it is not very common. After the Qing Dynasty, *** to the 1950s. Ancient locks have exquisite and subtle craftsmanship and rich cultural connotations. Carved lettering such as: champion and first prize, long life and wealth, unicorn giving children, dragon and phoenix are auspicious, etc. Take the fish-shaped lock as an example. In the "Zhi Tian Lu", it says: "The door lock must be a fish, which means not to watch the night." The fish is also auspicious year after year. Ancient locks also imply wealth, so there is a saying of "donkey and piggyback key and horseback lock". After that, love will last forever, the family will last forever, and the body will live forever. It seems that all good wishes reside in it.

      According to data records, the earliest locks made of wood can only be used as symbolic locks. The metal lock in our country first appeared in the Han Dynasty, it is a reed structure lock. The Ming and Qing Dynasties were the heyday of ancient locks, mainly made of copper and iron. In the 1950s, low-cost welding hook locks, blade locks, and pin locks entered the Chinese market one after another, and ancient Chinese locks have since withdrawn from the stage of history. Through the vicissitudes of ancient locks, one can appreciate the profound and profound Chinese history and culture.

    The specific names of the lock include one unlocking, two unlocking, three slap locks, three hoop tail locks, four unlocking, five unlocking, dragon and phoenix locks, dual locks, labyrinth locks (directional locks), bottom unlocking, turning locks, and inverted locks. Zip locks, concealed door locks, keyless locks, square locks, firecracker locks, horse rein locks, horn locks, oxtail locks, beam lifting locks, text code locks, digital code locks, etc.

       It is particularly worth mentioning that although these ancient locks are of different lengths, sizes, and appearances are the same, the mystery lies in the slot of the keyhole, which can be described as varied and strange. The shape of the keyhole is "一", "上", "工", "古," "Shang," "Auspicious", "Happy", "Shou" and other characters. These keyholes are still a reflection of the strict hierarchical system in the ancient society! The people of Li Shu can only use the word "一" for hole locks, while scholar-officials use "shi" and "ji" for hole locks. "The word hole lock, the king of the phase is different, and it must not be arrogant, otherwise it will be regarded as a violation of the king's law.

    According to the material, there are wooden locks, golden locks, silver locks, brass locks, iron locks, cloisonne locks, etc.; according to the form, there are round locks, square locks, pillow locks, text locks, character locks, animal locks, and password locks. , Concealed door locks, inverted zipper locks, barrel locks, etc.; according to the purpose, there are padlocks, door locks, box locks, cabinet locks, box locks, drawer locks, warehouse locks, etc.; from the process of molding and casting.

       Since the Ming Dynasty, locks have been divided into four categories: wide locks, Citi locks, jewelry locks, torture locks, and anti-theft locks.

       The so-called "wide lock" means horizontal lock. Such locks are abundant in Shaoxing, Zhejiang, and are also known as "Shaoxing". The folks call it "horizontal lock", "pillow lock" and so on. Since the Tang Dynasty, Guangsuo has been widely used in doors, boxes, kitchens, cabinets, etc. There are more than one hundred kinds. Wide locks are usually divided into eight specifications by size, with two as the unit, including "four two shao", "six two shao", "12 two shao" and so on. The "Six Liang Shao" is about 3.5 inches long, and the "Twelve Liang Shao" is about 7 inches long.

      Modern long shackle padlock has developed: 1. Password lock: It is unlocked by a password, which is mainly used for safe locks such as safes.

      2, induction lock:

      IC card lock: It is divided into contact type IC card lock and non-contact type. In the contact type, you need to lock the card into the lock and touch the internal card reader of the chip lock.

      Non-contact type does not use this process, just close the card and the card reader of the lock together. The application is very common.

       Such as: parking lots, subways and other public places.

      Electromagnetic lock: It is made by the principle of electromagnetic, and the electromagnetic force reaches hundreds of kilograms. When it is locked, ordinary people cannot open it at all. The fatal point is that the door cannot be closed after a power outage, so it is generally used for manned access doors, and the room door needs to be used in conjunction with a mechanical lock.

      3. Biologic lock: It is the development of biometric technology. Fingerprint lock, palmprint lock and retina lock have appeared.