Electric chain saw structure

Although there are many different brands and models of electric chain saws, their structure is similar, and they are all in line with ergonomic design principles.
Chain brake-also known as brake, a device used to quickly stop the rotation of the chain. It is mostly used for chain saw braking in emergency situations and is one of the safety functions. 
Saw chain gear-also known as sprocket, used to drive the toothed parts of the saw chain; it must be checked for wear before use and replaced in time. 
Front handle—The handle installed in front of the chain saw, also called the side handle. Front handle baffle—also called a safety baffle, a structural barrier installed in front of the front handle and guide plate of the chain saw. It is mostly installed near the front handle and sometimes used as the operating lever of the chain brake. Belongs to one of the safety functions. 
Guide plate-also known as the chain plate, a solid track structure used to support and conduct the saw chain; check the wear of the guide groove before use, repair the file in time, and replace it if necessary. 

Oil pump-manual or automatic pump oil, a device used to refuel the guide plate and the saw chain; check the oil supply before use, adjust the oil supply in time, and replace it if it is damaged. 
Rear Handle—The handle installed behind the chain saw belongs to the main handle. 
Saw chain—a chain with teeth for cutting wood, installed on the guide plate; before use, check its wear and tear, repair the file in time, check its tension, and adjust it in time. 
Wood cutting teeth—points used as a fulcrum for the chain saw when felling or cutting. Switch—a device that turns on or off the chain saw motor circuit during operation. 
Self-locking button-also known as safety button, used to prevent accidental switching operations; one of the safety functions of the chain saw. Guard head baffle—an accessory that can be installed on the tip of the guide to prevent the saw chain at the tip of the guide from touching the wood; one of the term safety features.