Lower piston

Abstract

The utility model provides a lower piston, which belongs to the field of pistons and comprises a piston body, an annular groove is arranged outside the piston body, a driving rod is mounted on the piston body, a short rod is mounted on the driving rod, and a connecting rod is fixed at one end of the short rod far away from the driving rod. A lock pin in threaded connection with the piston body is arranged on the piston body in a penetrating mode, a threaded groove is formed in the driving rod, the lock pin is located in the threaded groove and in threaded connection with the threaded groove, and a cross groove is formed in the end of the lock pin. According to the application of the plug on fluid equipment and the corresponding technical design of the plug, the operation efficiency and the stability of the equipment are improved, the flexibility and the adaptability of a system are enhanced, powerful support is provided for efficient and reliable operation of the fluid equipment, and the technical innovation not only meets the requirements of the current industrial technology, but also meets the requirements of the current industrial technology. And a solid foundation is laid for future fluid equipment development.

Description

Technical Field

[0001] This utility model relates to the field of piston technology, and in particular to a lower piston. Background Technology

[0002] In the field of fluid equipment, pistons, as core components, are widely used in hydraulic pumps, compressors, internal combustion engines, and other equipment, undertaking the important task of converting, transmitting, and controlling fluid energy. With the continuous development of industrial technology, the performance requirements for pistons are also increasing, especially in high-pressure, high-speed, and high-frequency working environments, where piston sealing, wear resistance, stability, and ease of operation have become key technical indicators. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention provides a lower piston.

[0004] An embodiment of this utility model provides a lower piston, comprising:

[0005] The piston body has an annular groove on its exterior. A drive rod is mounted on the piston body, and a short rod is mounted on the drive rod. A connecting rod is fixed to the end of the short rod away from the drive rod.

[0006] Furthermore, both ends of the piston body are chamfered.

[0007] Furthermore, the upper and lower inner walls of the annular groove are planar.

[0008] Furthermore, a through groove is provided on the piston body, and the drive rod passes through the through groove and is connected to it.

[0009] Furthermore, a locking pin is threadedly connected to the piston body, the drive rod is provided with a threaded groove, the locking pin is located in the threaded groove and is threadedly connected, and the end of the locking pin is provided with a cross groove.

[0010] Furthermore, the piston body is provided with a threaded hole that connects the annular groove and the through groove, and the locking pin is threadedly connected in the threaded hole.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] Optimized motion smoothness: The chamfered design at both ends of the piston body significantly reduces the frictional resistance of the piston in the cylinder, enabling the piston to reciprocate more smoothly, thereby improving the operating efficiency and stability of the fluid equipment.

[0013] Enhanced sealing performance: The annular groove on the outside of the piston features a planar design, ensuring tight contact with the sealing element and effectively preventing gas or liquid leakage. This design is particularly important in high-pressure or high-speed applications, ensuring the reliability and safety of fluid equipment.

[0014] Enhanced system flexibility: The drive rod connects to the piston body via a through groove and is secured and locked with a locking pin. This design allows the piston system to quickly adjust or lock the drive rod position when needed, thus improving system flexibility and adaptability. Simultaneously, the cross-groove design at the end of the locking pin facilitates rotational operation using tools, further enhancing ease of operation.

[0015] Extended service life: The threaded hole design not only provides an installation channel for the locking pin, but may also be used in some applications to inject lubricant or cleaning fluid to maintain the normal operation of the piston system and extend its service life. This helps reduce wear and corrosion of the piston and its related components, improving the overall performance and reliability of fluid equipment.

[0016] In summary, the application of pistons in fluid equipment and their corresponding technical designs not only improve the operating efficiency and stability of the equipment but also enhance the system's flexibility and adaptability, providing strong support for the efficient and reliable operation of fluid equipment. These technological innovations not only meet the current needs of industrial technology but also lay a solid foundation for the future development of fluid equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a lower piston as described in an embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the piston body in a lower piston according to an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of a drive rod in a lower piston as described in an embodiment of the present invention.

[0020] In the above figures: 1 piston body, 2 annular groove, 3 drive rod, 4 short rod, 5 connecting rod, 6 through groove, 7 locking pin, 8 cross groove, 9 threaded hole, 10 threaded groove. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-3 As shown, this utility model embodiment proposes a lower piston, comprising:

[0023] The piston body 1 has chamfered ends. The chamfered ends of the piston body 1 not only optimize the smoothness of the piston's movement in the cylinder and reduce friction with the cylinder wall, but also facilitate the positioning and alignment of the piston during installation and disassembly.

[0024] The piston body 1 has an annular groove 2 on its exterior. The annular groove 2 is located on the exterior of the piston body 1, and the planar design of its upper and lower inner walls ensures tight contact with sealing elements (such as O-rings or sealing rings), thereby effectively preventing gas or liquid leakage. This design is particularly important in high-pressure or high-speed applications.

[0025] The annular groove 2 has planar upper and lower inner walls. A drive rod 3 is mounted on the piston body 1, and a short rod 4 is mounted on the drive rod 3. A connecting rod 5 is fixed to the end of the short rod 4 away from the drive rod 3. The drive rod 3 serves as the power input component of the piston body 1 and is connected to the piston body 1 through a through groove 6. The integrated design of the short rod 4 and the connecting rod 5 provides an additional connection point or operating handle for the piston system, facilitating the driving or control of the piston by external mechanisms (such as connecting rods, crankshafts, etc.).

[0026] A through groove 6 is provided through the piston body 1, and the drive rod 3 passes through and connects to the through groove 6. A locking pin 7, threadedly connected to the through groove 6, is provided through the piston body 1. The drive rod 3 has a threaded groove 10. The design of the through groove 6 allows the drive rod 3 to move flexibly within the piston body 1, while the locking pin 7 is threadedly connected to the threaded groove 10, thus fixing and locking the drive rod 3. This design allows the piston system to quickly adjust or lock the position of the drive rod when needed, improving the system's flexibility and stability.

[0027] The locking pin 7 is located within the threaded groove 10 and is threadedly connected. The end of the locking pin 7 has a cross groove 8. The design of the through groove 6 allows the drive rod 3 to move flexibly within the piston body 1. Simultaneously, the locking pin 7, threadedly connected within the threaded groove 10, achieves fixation and locking of the drive rod 3. This design allows the piston system to quickly adjust or lock the position of the drive rod when needed, improving the system's flexibility and stability. A threaded hole 9, penetrating the piston body 1, connects the annular groove 2 and the through groove 6. This design not only provides an installation channel for the locking pin 7 but may also be used in certain applications to inject lubricant or cleaning fluid to maintain the normal operation of the piston system and extend its service life. The locking pin 7 is threadedly connected within the threaded hole 9.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lower piston, characterized in that, include: A piston body (1) is provided with an annular groove (2) on the outside of the piston body (1). A drive rod (3) is installed on the piston body (1). A short rod (4) is installed on the drive rod (3). A connecting rod (5) is fixed at the end of the short rod (4) away from the drive rod (3).

2. A lower piston according to claim 1, characterized in that, in: Both ends of the piston body (1) are chamfered.

3. A lower piston according to claim 1, characterized in that, in: The upper and lower inner walls of the annular groove (2) are planar.

4. A lower piston according to claim 1, characterized in that, in: The piston body (1) is provided with a through groove (6), and the drive rod (3) passes through the through groove (6) and is connected to it.

5. A lower piston according to claim 1, characterized in that, in: The piston body (1) is provided with a locking pin (7) threadedly connected to it, the drive rod (3) is provided with a threaded groove (10), the locking pin (7) is located in the threaded groove (10) and is threadedly connected, and the end of the locking pin (7) is provided with a cross groove (8).

6. A lower piston according to claim 5, characterized in that, in: The piston body (1) is provided with a threaded hole (9) that connects the annular groove (2) and the through groove (6), and the locking pin (7) is threadedly connected in the threaded hole (9).

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