Telescopic cylinder is a common pneumatic transmission component widely used in machinery, automation, and industrial equipment. Its main function is to achieve linear motion through the expansion and contraction of gas, used to control and drive the activity of working mechanisms.

The structure and components of the telescopic cylinder are as follows:

1. Cylinder barrel: The cylinder barrel is the main part of a telescopic cylinder, usually made of metal, plastic, or composite materials. It is a hollow cylindrical component used to accommodate pistons and gases.

2. Piston: The piston is a movable component inside the telescopic cylinder, usually made of metal. It cooperates with the cylinder barrel to convert the gas inside the cylinder barrel into mechanical motion through pneumatic force.

3. Piston rod: The piston rod is a rod-shaped component connected to the piston, used to transmit motion force and bear loads. It is generally made of metal and has sufficient strength and rigidity.

4. Seals: The seals for telescopic cylinders mainly include piston seals, cylinder barrel seals, and piston rod seals. Their main function is to prevent gas leakage in the cylinder and ensure its normal operation.

5. Guiding element: The guiding element is used to guide the movement trajectory of the piston to ensure its stable movement inside the cylinder. Guiding components usually include guide sleeves, guide rods, and guide rings.

6. Base: The base is the supporting part of the telescopic cylinder, used to fix the cylinder and bear external loads. The base is generally made of metal and has sufficient strength and stability.

7. Connectors: Connectors are used to fix telescopic cylinders in working equipment or mechanical systems. Connectors generally come in the form of flanges, threads, pin shafts, and bearings, and the appropriate connection method can be selected according to actual needs.

8. Pressure control component: The pressure control component is used to regulate and control the gas pressure inside the cylinder to achieve the expansion and contraction of the cylinder. Pressure control components typically include gas sources and pressure regulating valves.

9. Attachment: The attachment is an auxiliary device for the telescopic cylinder, used to achieve specific functions. Common accessories include sensors, limit switches, quick connectors, and shock absorbers.

The telescopic cylinder can be divided into single acting cylinder and double acting cylinder according to its working principle and structural characteristics. A single acting cylinder has only one chamber, and the gas force can only generate thrust in one direction; A double acting cylinder has two chambers, and the gas force can generate thrust in two directions. According to the expansion and contraction method of the cylinder, it can also be divided into linear expansion cylinders and rotary expansion cylinders.

In general, the structure of a telescopic cylinder mainly consists of a cylinder barrel, piston, piston rod, seal, guide, base, connector, pressure control components, and accessories. These components work together to achieve linear motion of the piston through pneumatic transmission, and are widely used in automation and mechanical equipment in various fields.