An improved piston rod for vehicles

By designing a detachable piston rod structure and an anti-wear coating, the problem of the piston rod being unrepairable was solved, enabling convenient maintenance and extended service life.

CN224433379UActive Publication Date: 2026-06-30NINGBO AITIAN AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO AITIAN AUTO PARTS CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The piston rods used in existing vehicles cannot be repaired after damage, resulting in the replacement of the entire rod, which increases the cost of use and makes inspection and maintenance inconvenient.

Method used

A detachable piston rod structure was designed. By rotating the connector on the right side of the rod and engaging the internal thread, the rod body is equipped with an insert rod and a fixing bolt. The outside is coated with an anti-wear coating to improve service life.

Benefits of technology

It enables the piston rod to be disassembled for inspection and maintenance, with the auxiliary fixation of the internal support reinforcement structure and the external anti-wear protection, reducing maintenance costs and extending service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of automotive parts technology and discloses an improved piston rod for vehicles, including a rod body. A connector is located on the right side of the rod body, and a connection port is located inside the right side of the rod body. An mounting head is fixed to the left side of the connector. The mounting head has an external thread on its exterior, and the connection port has an internal thread that mates with the external thread. The mounting head is rotatably connected to the connection port. The connector has an external thread portion on its exterior, and the rod body has an internal thread portion inside its left side. This utility model, with its rod body, connection port, mounting head, and connector, allows for easy installation and removal of the piston rod by rotating the connector on the right side of the rod body. This detachable design facilitates the inspection and maintenance of the piston rod.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an improved piston rod for vehicles. Background Technology

[0002] Piston rods are key components in hydraulics, pneumatics, engineering machinery, and automotive manufacturing, primarily used to convert hydraulic energy into mechanical energy to drive loads through reciprocating motion. They are commonly used in motion actuators such as hydraulic cylinders and pneumatic cylinders. However, in actual installation and use of piston rods in vehicles, the main body of the piston rod is often a one-piece structure. Damage to the external threaded mounting portion generally makes repair impossible, requiring replacement of the entire rod. This increases operating costs and presents a drawback, hindering the inspection and maintenance of the piston rod. Utility Model Content

[0003] The purpose of this invention is to provide an improved piston rod for vehicles to solve the problem mentioned in the background art of the inconvenience of inspecting and maintaining the piston rod.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an improved piston rod for vehicles, comprising a rod body, a connector on the right side of the rod body, a connection port inside the right side of the rod body, and an mounting head fixed on the left side of the connector.

[0005] As a further technical solution of this utility model, the mounting head is provided with an external thread on the outside, and the connection port is provided with an internal thread that mates with the external thread, and the mounting head is rotatably connected in the connection port.

[0006] As a further technical solution of this utility model, a plug rod is arranged horizontally inside the rod body, and reserved holes are respectively opened on both sides of the top and bottom ends of the rod body, and the reserved holes penetrate through the interior of the rod body. A fixing bolt is installed inside the reserved hole, and mounting holes are respectively provided on both sides of the top and bottom ends of the plug rod.

[0007] As a further technical solution of this utility model, the mounting hole is provided with an internal thread that mates with the external thread of the fixing bolt, and the fixing bolt passes through the interior of the reserved hole and is rotatably connected in the mounting hole.

[0008] As a further technical solution of this utility model, the outer side of the rod is provided with an anti-wear coating.

[0009] As a further technical solution of this utility model, the outer side of the connector is provided with an external thread, and the inner side of the left side of the rod is provided with an internal thread.

[0010] As a further technical solution of this utility model, a reserved groove is provided on the left side of the outside of the rod.

[0011] As a further technical solution of this utility model, through holes are respectively provided on the left side of the top and bottom ends of the rod, and the through holes penetrate the interior of the rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by providing a rod body, a connecting port, an mounting head and a connecting head, when the piston rod is installed and used, by rotating the connecting head on the right side of the rod body, the mounting head on the left side of the connecting head is screwed out from the inside of the connecting port on the right side of the rod body, and the connecting head can be disassembled from the rod body. The installation part is detachable and separable, which facilitates the inspection and maintenance of the piston rod.

[0013] With a rod body, insert rod, reserved hole, mounting hole and fixing bolt, the piston rod is used by inserting the insert rod into the internal cavity of the rod body on the left side of the rod body, and fixing bolts are screwed into the mounting holes inside the insert rod at the top and bottom of the rod body respectively. The insert rod can be fixedly installed on the inside of the rod body. The rod body can be used to provide auxiliary internal support and reinforcement for the internal structure of the piston rod.

[0014] By incorporating a rod body and an anti-wear coating, the piston rod, when in use, forms a dense ceramic protective layer on its outer surface through the anti-wear coating on the outside of the rod body. This facilitates anti-wear protection of the piston rod's outer side and improves its service life. Attached Figure Description

[0015] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the present invention.

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0018] Figure 4 This is a side view of the structure of this utility model.

[0019] In the diagram: 1. Rod body; 2. Internal threaded part; 3. Insert rod; 4. Reserved slot; 5. Through hole; 6. Connection port; 7. Mounting head; 8. Connecting head; 9. External threaded part; 10. Anti-wear coating; 11. Reserved hole; 12. Mounting hole; 13. Fixing bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides an embodiment: an improved piston rod for vehicles, including a rod body 1, a connector 8 is provided on the right side of the rod body 1, a connection port 6 is provided inside the right side of the rod body 1, an mounting head 7 is fixed on the left side of the connector 8, an external thread is provided on the outside of the mounting head 7, an internal thread that mates with the external thread is provided inside the connection port 6, and the mounting head 7 is rotatably connected in the connection port 6.

[0022] Specifically, such as Figures 1-4 As shown, when the piston rod is installed and used, by rotating the connector 8 on the right side of the rod body 1, the fixing head 7 on the left side of the connector 8 is screwed out from the inside of the connector port 6 on the right side of the rod body 1, and the connector 8 can be disassembled from the rod body 1. The installation part is detachable and separable.

[0023] The rod body 1 has a horizontally arranged insert rod 3 inside. The top and bottom ends of the rod body 1 are respectively provided with reserved holes 11, and the reserved holes 11 penetrate the interior of the rod body 1. The reserved holes 11 are provided with fixing bolts 13 inside. The top and bottom ends of the insert rod 3 are respectively provided with mounting holes 12. The mounting holes 12 are provided with internal threads that mate with the external threads of the fixing bolts 13. The fixing bolts 13 penetrate the interior of the reserved holes 11 and are rotatably connected in the mounting holes 12.

[0024] Specifically, such as Figure 1 and Figure 3 As shown, by inserting the insert rod 3 into the internal cavity of the rod body 1 on the left side of the rod body 1, and fixing it by screwing the fixing bolts 13 into the internal mounting holes 12 of the insert rod 3 at both the top and bottom ends of the rod body 1, the insert rod 3 can be fixedly installed on the inside of the rod body 1. The rod body 1 can be used to provide auxiliary internal support and reinforcement for the internal structure of the piston rod.

[0025] The outer side of the rod 1 is provided with an anti-wear coating 10;

[0026] Specifically, such as Figure 1 and Figure 2 As shown, by providing an anti-wear coating 10 on the outer side of the rod body 1, a dense ceramic protective layer can be formed on the outer side of the piston rod, which facilitates anti-wear protection of the outer side of the piston rod and improves the service life of the piston rod.

[0027] The connector 8 has an external thread 9 on its outer side, an internal thread 2 on the left side of the rod 1, a reserved groove 4 on the left side of the outer side of the rod 1, and through holes 5 on the left side of the top and bottom ends of the rod 1, which penetrate the interior of the rod 1.

[0028] Working principle: When installing and using the piston rod, by rotating the connector 8 on the right side of the rod body 1, the fixing head 7 on the left side of the connector 8 is unscrewed from the inside of the connecting port 6 on the right side of the rod body 1, allowing the connector 8 to be detached from the rod body 1. The installation part is detachable and separable. Simultaneously, when using the piston rod, by inserting the insert rod 3 into the internal cavity of the rod body 1 on the left side, and fixing bolts 13 are screwed into the internal mounting holes 12 of the insert rod 3 at both the top and bottom ends of the rod body 1, the insert rod 3 is fixedly installed inside the rod body 1. The rod body 1 provides auxiliary internal support and reinforcement to the internal structure of the piston rod. Furthermore, when using the piston rod, the anti-wear coating 10 on the outer side of the rod body 1 forms a dense ceramic protective layer on the outer surface of the piston rod, providing anti-wear protection.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An improved piston rod for vehicles, comprising a rod body (1), characterized in that: A connector (8) is provided on the right side of the rod (1), and a connection port (6) is provided inside the right side of the rod (1). An installation head (7) is fixed on the left side of the connector (8).

2. The improved piston rod for vehicles according to claim 1, characterized in that: The mounting head (7) has an external thread on its exterior, and the connection port (6) has an internal thread that mates with the external thread on its interior. The mounting head (7) is rotatably connected to the connection port (6).

3. An improved piston rod for vehicles according to claim 2, characterized in that: The rod body (1) has a horizontally arranged insert rod (3) inside. The top and bottom ends of the rod body (1) are respectively provided with reserved holes (11), and the reserved holes (11) penetrate the interior of the rod body (1). The reserved holes (11) are provided with fixing bolts (13) inside. The top and bottom ends of the insert rod (3) are respectively provided with mounting holes (12).

4. An improved piston rod for vehicles according to claim 3, characterized in that: The mounting hole (12) is provided with an internal thread that mates with the external thread of the fixing bolt (13). The fixing bolt (13) passes through the interior of the reserved hole (11) and is rotatably connected in the mounting hole (12).

5. An improved piston rod for vehicles according to claim 1, characterized in that: The outer side of the rod (1) is provided with an anti-wear coating (10).

6. An improved piston rod for vehicles according to claim 1, characterized in that: The connector (8) has an external thread (9) on its outer side, and the rod (1) has an internal thread (2) on its left side.

7. An improved piston rod for vehicles according to claim 1, characterized in that: A reserved groove (4) is provided on the left side of the outside of the rod (1).

8. An improved piston rod for vehicles according to claim 1, characterized in that: The top and bottom left sides of the rod (1) are respectively provided with through holes (5), and the through holes (5) penetrate the interior of the rod (1).