The bottle opener was invented by American Ezra Warner in 1858. In 1925, Liman improved it, and it was widely used all over the world: the history of bottle opener in China can be divided into the Republic of China (enlightenment stage) and the early days of the people's Republic of China (manual production stage); the 1960s (machine production stage); the 1980s, the bottle opener entered a turning point and development stage (rapid development stage) ）Now the bottle opener has developed into a prosperous era, and the electric pneumatic type and multi-functional type are constantly updated and improved. The appearance of the bottle opener not only represents the improvement of people's living standards, but also represents the improvement of the national mechanical development and manufacturing technology. A simple bottle opener is a collection of the principles of mechanical manufacturing and the painstaking efforts of physics. For example, the use of the principle of pressure and lever, the structure of gear, the structure of screw head and the combination of parts on the fulcrum of force are explored step by step through experience: every bottle opener is a work of art in mechanical technology, which is worth our thinking and learning.

In this paper, I mainly through the investigation and introduction of the origin, formation and development of the general bottle opener on the market, as well as the types and characteristics of the bottle opener, analyze the basic parameters and the principles used when opening the bottle: for example, the specified size of the bottle opening teeth, the specified size and screw pitch of the screw drill, the use of the lever principle, and finally confirm the basic parameters such as the manufacturing materials and the use principle of the bottle opener Through the above analysis data, combined with the basic mechanical knowledge and practical functions of the University for three years, we use CAD drawing software to draw the entity diagram, showing a multi-functional bottle opener that can bring real convenience to everyone's life.

1、 Types of universal bottle opener

Bottle opener is one of the daily necessities that we often see in tens of thousands of lives. Because of the difficulties of technology, single shape, limited quantity and underdeveloped economy, it has not been widely used in the early days. But now, with the progress of technology and people's urgent demand for consumer goods and the desire for beauty, the shape and shape of bottle opener have changed With more and more functions, it is more and more close to our life. You can see it in kitchens, hotels, hospitals and shopping malls. But in fact, there are few kinds of bottle openers on the market. To sum up, there are only three kinds of bottle openers with bottle opening functions: bottle opener, can opener, beverage opener and bottle stopper opener

l. L beverage bottle opener

The beverage bottle opener, which we often see in shopping malls and small shops, has a variety of shapes. However, its functions and features are the same. It has a handle and a toothed mouth structure. It is mainly used in compressed metal bottle caps such as beer and cola that we drink everyday. Some manufacturers can transform it into hanging ornaments or keychains in order to attract customers Its design and technology are relatively simple, and it can be manufactured in large quantities, so its value is relatively low: in the beverage bottle opener, the opening teeth of the bottle opener play a role in opening the bottle.

1.2 bottle stopper

The cork opener is designed for opening some noble sample wine with cork: its shape and manufacturing materials are different due to the requirements of foreign wine merchants, and the exquisite ones can be used as valuable collectibles or transformed into valuable hanging ornaments: the cork openers on the market mainly include single lever hand spinning type, lever type, pneumatic type and electric type

2、 Basic parameters of the principle of bottle opener

2.1 beverage bottle opener

Basic parameters of the principle of 2.1 l beverage bottle opener

1) Beverage bottle opener is usually called "opener" or "bottle opener": because of its simple process, it is made of a wide range of materials, usually made of metal and plastic

2) The structure of the utility model is mainly composed of a handle, a bottle opening mouth, etc

3) Generally, the size of opening teeth is 1.5-2CM in radius

Specified size of handle: 0.5 * 8cm

2.1.2 principle of beverage bottle opener

The principle of beverage bottle opener is the lever principle that we often see in our daily life

A hard bar, under the action of force, can rotate around a fixed point. This hard bar is a lever

Lever balance condition: power arm × power = resistance arm × resistance（ LIFl:L2F2 )

Lever is a simple machine; a strong stick (preferably not bent and very light) can be used as a lever