Generally speaking, the thickness of ordinary anti-theft doors is between 40mm and 60mm, which is also the thickness of common fingerprint locks. The lock body usually has a cylindrical lock body and a square lock body. Whether it is a cylindrical lock body or a square lock body, the size of the lock body is mostly the same, the difference lies in the size of the bolt in the middle.
Common sizes are: 50*45/50; 58*45/50; 72*45/50/55/60; 85*30/35/45/50/55/60; 92*20/25/30/35/ 40 and so on.
Measure the distance from the empty center point of the handle to the center point of the keyhole, and then measure the distance from the center point of the handle to the side of the door, that is, the distance from the depth of the hole on the door to the center point of the handle. These two The distance is the specification of the lock body. For example, the first distance is 72mm and the second distance is 55mm, then the specification of the lock body is a 55*72 lock body! Note: When matching the lock body, remember to measure the hole on the door Depth and length so that the lock body can match perfectly.
Standard lock body: usually divided into 50*58 lock body and 60*68 double quick lock body, standard lock side plate 24*240. The distance between the center of the square bar hole of the lock body and the center of the lock head hole is divided into 58 locks and 50 locks. The 6068 lock body is the center distance and hole distance, and the name is generally directly determined by the specifications.
In addition, there are large lock bodies and small lock bodies. For example, the lock body is divided into 50 locks and 50 locks according to the size.
Standard lock body size: 24*240(mm) or 30*240(mm);
Bawang lock body size: 30*388(mm) or 40*388(mm).
The cylindrical lock body is mainly used for stainless steel anti-theft doors, while the square lock body is mainly used for wooden doors. It is recommended that you purchase standard and Bawang cylinder and square lock bodies when purchasing lock body inventory, and purchase guide plates 24*240(mm) or 30*240(mm), 30*388(mm) or 40*388(mm) There are four types, these two types and four types can be adapted to most anti-theft doors in domestic households.
The current smart lock body can be divided into national standard lock body and non-national standard lock body. The material of the lock body is preferably 304 stainless steel, which is durable, strong and reliable, resistant to wear and not easy to rust. If you choose poor quality iron sheet, zinc alloy, or ordinary alloy, it is easy to rust and mold, and the durability is poor.
When smart locks are produced, in addition to meeting national standards, they must also comply with the actual situation of domestic anti-theft doors. There are relatively strict size standards. The size of fingerprint locks usually refers to the standard size technical indicators of fingerprint locks. The lock body is divided into a normal lock body and a large lock body, which have different size requirements and must meet the actual installation and use scenarios.
When measuring, we can calculate the distance from the empty center point of the handle to the center point of the keyhole, and then measure the distance from the center point of the handle to the edge of the door, that is, the depth of the hole on the door is measured to the center point of the handle. Distance, these two distances are the specifications of the lock body, and also pay attention to measure the depth and length of the hole on the door, so that the lock body can be completely matched.
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