1. Snap-in connection
2. Open ring compression type
An automatic machine used in the solar energy industry, part of which, the PU pipe is a purchased finished PU water pipe, the upper part is also processed with threads, and the threaded connection is also an aluminum part.
3. Snap-on switch
4. Combination compression type
An interface structure that is often used in the design of air and water circuits, the sealing effect is very good and very firm.
Five, screw fixing
6. Injection filling package
Put the hardware into the mold and inject the whole product. Generally, the surface of the hardware has knurling, barbs, steps and other features.
Seven, barbed plug-in type
Widely used for battery shrapnel installation. Advantages: easy to install, relatively firm. Disadvantage: It is not easy to disassemble. If it becomes loose, it is basically scrapped. The plastic parts cannot be reused. picture
8. The net cover is twisted and fastened
It is widely used in the fixing method of the net cover, which is easy to install and firm, but it cannot be disassembled many times. Too many buttons are easy to break.
9. Elastic expansion and fixation of hardware shrapnel
Widely used in ring hardware, for hand-held microphones to hold circular circuit boards. According to the shape of the hardware, in order to facilitate the installation, sometimes two small round holes are designed, which are clamped and installed with tools, and taken out.
10. Embedded molding type, this is the same thing as the foaming part. There are many applications in the mobile phone industry. The installation method between the shells. Relatively speaking, the cost is also higher. High-end products generally do this picture
11. Partial hot-melt fixed type: widely used for speaker grille fixing
12. Screw fixing: This method is quite common, and it is often used in combination with other methods. Combinations need to be considered on a case-by-case basis
13. Elastic clamping method:
The LOGO plastic logo on the iron net of the speaker is often used to fix it on the iron net. Generally, there will be a small hardware similar to a non-slip gasket, which is stuck on a cylinder on the logo. The installation sequence is: a small cylinder on the back of the identification plate passes through a small hole on the grille, and then it is locked with the small hardware of the snap ring. In this way, a fixed effect can be achieved. Anti-rotation, generally there will be a pit in the shape of a logo plate punched out on the grille.
14. Chassis foot pad buckle type:
14. Sticking method with glue
In general, there are more than a dozen types above. In fact, many links are combined. This is the principle of learning and using. If you disassemble some products more, you may find many good combined assembly methods.
Here are some combinations.
