Integrated rod cylinder
The rod cylinder, piston cylinder, solenoid valve, and circuit board are integrated into one unit through integrated design. The electrical and pneumatic control is simplified, solving the problem of complex control in existing cylinders and achieving space saving and easy installation.
Patent Information
- Application Number
- CN202423206813.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing cylinder motion control requires the connection of multiple components, resulting in large space occupation, complex installation, and cumbersome control circuitry.
Design an integrated rod cylinder, in which the piston cylinder, solenoid valve, and circuit board are integrated into one unit, requiring only one air pipe and one signal line for control. The piston cylinder is made of high-pressure aluminum integral molding, with integrated internal air circuit, a neat appearance, and convenient maintenance.
It achieves a high degree of integration of electrical and pneumatic circuits, simplifies the control process, reduces the number of lines and air pipes, improves the ease of installation and maintenance, and extends the service life of the piston rod.
Smart Images

Figure CN223648191U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of air cylinder especially relates to an integrated rod air cylinder. BACKGROUND
[0002] Air cylinder refers to the cylindrical metal machine part guiding the piston to carry out linear reciprocating motion in the cylinder, air is converted into mechanical energy by expansion in the engine cylinder; gas receives the compression of the piston and improves the pressure in the compressor cylinder, the casing of turbine, rotary piston engine etc. is also called cylinder, and the application field of air cylinder is printing, semiconductor, automation control, robot, numerical control machine tool etc.
[0003] At present, the mainstream air cylinder action control needs to be connected with electromagnetic valve, multiple signal switch lines, multiple air pipes, multiple line control actions and signal transmission, which occupies large space and has the defects of complex installation control of multiple accessories.
[0004] Therefore, it is necessary to provide an integrated rod air cylinder to solve the above problems. UTILITY MODEL CONTENTS
[0005] The main purpose of the utility model is to provide an integrated rod air cylinder, which can effectively solve the problems in the background art.
[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0007] An integrated rod air cylinder, comprising a piston cylinder, a rod assembly is arranged at the top of the piston cylinder, an electromagnetic valve and a circuit board are installed on the side edge of the rod assembly, a piston rod is movably connected in the inner cavity of the piston cylinder, an extension column is installed at the bottom of the piston rod, and a connecting shaft is installed at the bottom of the extension column.
[0008] Preferably, a second gasket is installed at the top of the piston cylinder, the bottom of the rod assembly is attached to the top of the second gasket, the rod assembly is screw-connected to the top of the piston cylinder, the piston cylinder is made of aluminum material, and the piston cylinder is made by one-piece high-pressure die casting.
[0009] Preferably, a buffer frame is installed at the top of the piston rod, a connecting head is installed at the top of the buffer frame, the top of the buffer frame is attached to the top of the inner cavity of the piston cylinder, and the top of the connecting head extends into the inner cavity of the rod assembly.
[0010] Preferably, a piston groove is arranged in the inner cavity of the piston cylinder, the piston rod is movably connected in the inner cavity of the piston groove, a lower end cover is installed at the top of the outer wall of the extension column, a first gasket is attached to the top of the lower end cover, the first gasket is located at the bottom of the piston cylinder, and the lower end cover is screw-connected to the bottom of the piston cylinder.
[0011] Preferably, an air pipe connector is installed on the side of the lower end cover, the air pipe connector communicates with the inner cavity of the piston groove, the extension column is movably connected to the bottom of the piston cylinder, a connecting shaft is installed at the bottom of the extension column, and a threaded connecting rod is installed at the bottom of the connecting shaft.
[0012] Preferably, a limiting groove is formed in the center of the bottom of the extension column, and a limiting block is installed on the top of the outer wall of the connecting shaft. The size of the limiting block is larger than that of the limiting groove, and the limiting block is movably connected to the bottom of the extension column.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This integrated rod cylinder has a one-piece appearance, and its electrical control and pneumatic control are highly integrated, making the electrical, pneumatic and control systems simple.
[0015] 2. This integrated rod cylinder, by integrating the piston and cylinder into one piece, only requires one air pipe and one signal line to connect, thus effectively solving the problems of multiple signal lines, multiple air pipes, multiple motion control circuits, complex control, and large space occupation. The piston cylinder is controlled by a circuit board, requiring only one signal line to control the cylinder circuit action and signal. The piston cylinder is integrally formed by die-cast high-pressure aluminum parts, and the air circuit is integrated into the inside of the piston cylinder. Only one air pipe is needed to control the pneumatic action of the piston cylinder. At the same time, the overall appearance is neat, simple, and easy to install.
[0016] 3. This integrated rod cylinder, with its removable rod assembly and lower end cover, facilitates the removal of the piston rod within the cylinder cavity, enabling convenient maintenance. The first and second gaskets protect the rod assembly and lower end cover during installation, while the buffer frame cushions the piston rod during movement, effectively extending its service life. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an exploded view of this utility model;
[0019] Figure 3 This is a structural schematic diagram of the rod assembly of this utility model;
[0020] Figure 4 This is a schematic diagram of the piston rod of this utility model.
[0021] In the diagram: 1. Piston cylinder; 2. Extension column; 3. Rod assembly; 4. Piston groove; 5. Lower end cap; 6. Air pipe connector; 7. Limiting block; 8. Threaded connecting rod; 9. Piston rod; 10. Buffer frame; 11. Connector; 12. First gasket; 13. Solenoid valve; 14. Circuit board; 15. Second gasket; 16. Connecting shaft; 17. Limiting groove. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figures 1-4 As shown, an integrated rod cylinder includes a piston cylinder 1, a rod assembly 3 on the top of the piston cylinder 1, a solenoid valve 13 and a circuit board 14 mounted on the side of the rod assembly 3, a piston rod 9 movably connected to the inner cavity of the piston cylinder 1, an extension post 2 mounted on the bottom of the piston rod 9, a connecting shaft 16 mounted on the bottom of the extension post 2, a second gasket 15 mounted on the top of the piston cylinder 1, the bottom of the rod assembly 3 fitting against the top of the second gasket 15, the rod assembly 3 being threadedly connected to the top of the piston cylinder 1, a buffer frame 10 mounted on the top of the piston rod 9, a connector 11 mounted on the top of the buffer frame 10, the top of the buffer frame 10 fitting against the top of the inner cavity of the piston cylinder 1, the piston cylinder 1 being made of aluminum and manufactured by one-piece high-pressure die casting, and the top of the connector 11 extending to the rod assembly 3. Inside the cylinder 1, a piston groove 4 is provided. The piston rod 9 is movably connected to the inner cavity of the piston groove 4. A lower end cover 5 is installed on the top of the outer wall of the extension column 2. A first gasket 12 is attached to the top of the lower end cover 5. The first gasket 12 is located at the bottom of the piston cylinder 1. The lower end cover 5 is threaded to the bottom of the piston cylinder 1. An air pipe connector 6 is installed on the side of the lower end cover 5. The air pipe connector 6 communicates with the inner cavity of the piston groove 4. The extension column 2 is movably connected to the bottom of the piston cylinder 1. A connecting shaft 16 is installed at the bottom of the extension column 2. A threaded connecting rod 8 is installed at the bottom of the connecting shaft 16. A limit groove 17 is provided in the center of the bottom of the extension column 2. A limit block 7 is installed on the top of the outer wall of the connecting shaft 16. The size of the limit block 7 is larger than the limit groove 17. The limit block 7 is movably connected to the bottom of the extension column 2.
[0024] This cylinder features a unibody design, with highly integrated electrical and pneumatic control. The electrical and pneumatic control systems are simple. By integrating the piston cylinder 1, only one air pipe and one signal line are needed, effectively solving the problems of numerous signal lines, air pipes, and complex control circuits, as well as the large space required. The piston cylinder 1 is controlled by a single signal line via the circuit board 14. The piston cylinder 1 is integrally formed from die-cast high-pressure aluminum, with the pneumatic circuit integrated inside. Only one air pipe is needed to control the pneumatic action of the piston cylinder 1. The overall appearance is clean, simple, and easy to install. The removable rod assembly 3 and lower end cover 5 facilitate the removal of the piston rod 9 within the piston cylinder 1 for easy maintenance. The first gasket 12 and second gasket 15 protect the rod assembly 3 and lower end cover 5 during installation. The buffer frame 10 cushions the piston rod 9 during movement, effectively extending its service life.
[0025] It should be noted that this utility model is an integrated rod cylinder. In use, the rod assembly 3 is connected to the external components, and the threaded connecting rod 8 is connected to the structure to be driven. The whole is controlled by the circuit board 14. The air pipe connector 6 is connected to the air circuit. After the air circuit is connected, the piston rod 9 can drive the connecting shaft 16 and the threaded connecting rod 8 to move through the extension column 2, and can drive the structure connected to it at one time.
[0026] When overall maintenance is required, remove the rod assembly 3 and the lower end cover 5 to remove the piston rod 9 for maintenance. During installation, attach the second gasket 15 and the first gasket 12 to the top and bottom of the piston cylinder 1, and then install the lower end cover 5 and the rod assembly 3.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An integrated rod cylinder, comprising a piston cylinder (1), characterized in that: The piston cylinder (1) is provided with a rod assembly (3) at the top, and a solenoid valve (13) and a circuit board (14) are installed on the side of the rod assembly (3). A piston rod (9) is movably connected in the inner cavity of the piston cylinder (1). An extension column (2) is installed at the bottom of the piston rod (9), and a connecting shaft (16) is installed at the bottom of the extension column (2).
2. An integrated rod cylinder according to claim 1, characterized in that: The piston cylinder (1) is fitted with a second gasket (15) on top, and the bottom of the rod assembly (3) is attached to the top of the second gasket (15). The rod assembly (3) is threaded to the top of the piston cylinder (1). The piston cylinder (1) is made of aluminum and is manufactured by one-piece high-pressure die casting.
3. An integrated rod cylinder according to claim 1, characterized in that: A buffer frame (10) is installed on the top of the piston rod (9), and a connector (11) is installed on the top of the buffer frame (10). The top of the buffer frame (10) fits against the top of the inner cavity of the piston cylinder (1), and the top of the connector (11) extends into the inner cavity of the rod assembly (3).
4. An integrated rod cylinder according to claim 1, characterized in that: The piston cylinder (1) has a piston groove (4) in its inner cavity. The piston rod (9) is movably connected in the inner cavity of the piston groove (4). A lower end cover (5) is installed on the top of the outer wall of the extension column (2). A first gasket (12) is attached to the top of the lower end cover (5). The first gasket (12) is located at the bottom of the piston cylinder (1). The lower end cover (5) is threaded to the bottom of the piston cylinder (1).
5. An integrated rod cylinder according to claim 4, characterized in that: The lower end cover (5) is equipped with an air pipe connector (6) on its side. The air pipe connector (6) is connected to the inner cavity of the piston groove (4). The extension column (2) is movably connected to the bottom of the piston cylinder (1). A connecting shaft (16) is installed at the bottom of the extension column (2). A threaded connecting rod (8) is installed at the bottom of the connecting shaft (16).
6. An integrated rod cylinder according to claim 1, characterized in that: A limiting groove (17) is provided in the center of the bottom of the extension column (2), and a limiting block (7) is installed on the top of the outer wall of the connecting shaft (16). The size of the limiting block (7) is larger than that of the limiting groove (17), and the limiting block (7) is movably connected to the bottom of the extension column (2).