Metal valve rod of hydraulic part

By designing a detachable metal valve stem connection assembly and sealing structure, the problem of replacing the entire valve stem in existing hydraulic components was solved, enabling individual disassembly and replacement of functional sections, reducing maintenance costs and improving sealing performance.

CN224188134UActive Publication Date: 2026-05-01SHANGHAI GONGFU IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI GONGFU IND CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The integral structure of existing hydraulic valve stems means that when local wear or damage occurs, the entire stem needs to be replaced, which increases maintenance costs, wastes materials, and reduces practicality and economy.

Method used

A metal valve stem is designed with a detachable connection assembly, including a slide plate, a threaded rod, and a nut. The individual functional sections can be disassembled and replaced through the cooperation of rectangular holes and rectangular slots, and a sealing ring and a sealing gasket are provided to ensure sealing.

Benefits of technology

It enables the individual disassembly and replacement of each functional section, reducing maintenance costs, improving practicality and economy, while ensuring good sealing performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224188134U_ABST
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Abstract

The utility model provides a metal valve rod of a hydraulic part, which belongs to the field of valve rods and comprises a base, a connecting piece arranged on the base and a metal head arranged on the connecting piece. The connecting assembly comprises an inserting plate, a threaded rod and a nut, the inserting plate is fixedly arranged on the base, the threaded rod is fixedly arranged at the outer end of the inserting plate, and the nut is in threaded connection with the threaded rod. According to the utility model, the connecting assembly is arranged, and each functional section can be independently detached, so that the sectional replacement or maintenance is facilitated, the maintenance cost is reduced, and the practicability and the economical efficiency are improved; and a sealing ring and a sealing gasket are also arranged, so that good sealing performance is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of valve stem technology, and in particular to a metal valve stem for a hydraulic component. Background Technology

[0002] Hydraulic components are all equipped with control valves, and the valve stem is an important part of the valve. Its main function is to connect the valve's operating mechanism (such as a handwheel, handle, or actuator) with the valve's closing element (such as a valve disc, gate, or ball), and to transmit the operating force to the closing element to realize the opening and closing of the valve.

[0003] Currently, valve stems in existing technologies typically adopt an integrated structural design, meaning the valve stem is molded as a whole. This makes it impossible to independently disassemble or replace each functional section (such as the support end, transmission section, and connection section). When a part of the valve stem wears or is damaged due to long-term use, it is often necessary to replace the entire valve stem. This not only increases maintenance costs but also wastes materials, reducing the practicality and economy of the valve. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a metal valve stem for hydraulic components.

[0005] An embodiment of this utility model provides a metal valve stem for a hydraulic component, comprising:

[0006] A base, on which a connector is provided, and a metal head is provided on the connector;

[0007] A connecting assembly includes a insert plate, a threaded rod, and a nut. The insert plate is fixedly mounted on a base, the threaded rod is fixedly mounted on the outer end of the insert plate, and the nut is threadedly connected to the threaded rod.

[0008] Furthermore, a sealing ring is provided between the connector and the base and the metal head, and a sealing gasket is fixedly provided on the inner side of the sealing ring.

[0009] Furthermore, a rectangular hole is provided through the connector, and the insert plate is provided through the rectangular hole.

[0010] Furthermore, a rectangular groove is provided on the inner side of the metal head, and the insert plate is inserted into the rectangular groove.

[0011] Furthermore, a through-hole is provided in the rectangular groove on the outer side of the metal head, and the threaded rod is provided through the through-hole.

[0012] Furthermore, the sealing gasket is arranged in a ring shape, and the sealing gasket is abutted against the connector.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. A connecting assembly is provided. First, insert the insert plate into the rectangular hole, then insert the insert plate into the rectangular slot. Finally, thread the nut onto the threaded rod and tighten the metal head to secure it. Unscrew the nut to remove the connector and metal head. Operation is simple, and each functional section can be disassembled individually for easy replacement or maintenance, reducing maintenance costs and improving practicality and economy.

[0015] 2. A sealing ring and a sealing gasket are provided. The two sealing rings are used to seal between the valve stem and the valve body to ensure good sealing performance; the sealing gasket is used to seal between the connector and the base and the metal head to ensure good sealing performance.

[0016] In summary, this utility model is equipped with connecting components, and each functional section can be disassembled independently, which facilitates segmented replacement or maintenance, reduces maintenance costs, and improves practicality and economy; it is also equipped with sealing rings and sealing gaskets to ensure good sealing performance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a metal valve stem of a hydraulic component described in an embodiment of this utility model.

[0018] Figure 2 This is an unfolded view of the metal valve stem of a hydraulic component described in an embodiment of this utility model.

[0019] Figure 3 This is a cross-sectional view of the metal head in the metal valve stem of a hydraulic component described in this embodiment of the present invention.

[0020] In the above attached figures: 1 base, 2 connector, 3 metal head, 4 insert plate, 5 rectangular hole, 6 rectangular groove, 7 threaded rod, 8 through hole, 9 nut, 10 sealing ring, 11 sealing gasket. 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 in the figure, this utility model embodiment proposes a metal valve stem for a hydraulic component, comprising:

[0023] Base 1, with connector 2 on base 1, and metal head 3 on connector 2;

[0024] The connecting assembly includes a plug plate 4, a threaded rod 7, and a nut 9. The plug plate 4 is fixedly mounted on the base 1 and is made of metal to ensure stability. The threaded rod 7 is fixedly mounted on the outer end of the plug plate 4, and the nut 9 is threadedly connected to the threaded rod 7.

[0025] A rectangular hole 5 is provided through the connector 2, and an insert plate 4 is provided through the rectangular hole 5, with the insert plate 4 abutting against the inner side of the rectangular hole 5 to ensure stability. A rectangular groove 6 is provided on the inner side of the metal head 3, and the insert plate 4 is inserted into the rectangular groove 6, with the insert plate 4 abutting against the inner side of the rectangular groove 6 to ensure stability. A through hole 8 is provided on the outer side of the metal head 3 through the rectangular groove 6, and a threaded rod 7 is provided through the through hole 8 for the threaded rod 7 to pass through.

[0026] A sealing ring 10 is provided between the connector 2 and the base 1 and the metal head 3. The sealing ring 10 is used to seal between the valve stem and the valve body. By providing two sealing rings 10, the sealing performance is ensured. A sealing gasket 11 is fixedly provided on the inner side of the sealing ring 10. The sealing gasket 11 is arranged in a ring shape and abuts against the connector 2. The two sealing gaskets 11 abut against the base 1 and the metal head 3 respectively. The sealing gasket 11 is used to seal between the connector 2 and the base 1 and the metal head 3, ensuring the sealing performance.

[0027] The detailed working process of this utility model is as follows:

[0028] 1. When connecting, first put one of the sealing rings 10 on the insert plate 4, then insert the insert plate 4 into the rectangular hole 5 of the connector 2, then put the other sealing ring 10 on the insert plate 4, then insert the insert plate 4 into the rectangular groove 6 of the metal head 3, and pass the threaded rod 7 through the through hole 8. Finally, thread the nut 9 onto the threaded rod 7 and press the metal head 3 against it, thereby pressing the two sealing gaskets 11 together to fix them.

[0029] 2. To disassemble, unscrew nut 9 to remove connector 2, metal head 3 and sealing ring 10.

[0030] 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 metal valve stem for a hydraulic component, characterized in that, include: A base (1) is provided with a connector (2), and a metal head (3) is provided on the connector (2); The connecting assembly includes a insert plate (4), a threaded rod (7), and a nut (9). The insert plate (4) is fixedly mounted on the base (1), the threaded rod (7) is fixedly mounted on the outer end of the insert plate (4), and the nut (9) is threadedly connected to the threaded rod (7).

2. The metal valve stem of a hydraulic component according to claim 1, characterized in that, in: A sealing ring (10) is provided between the connector (2) and the base (1) and the metal head (3), and a sealing gasket (11) is fixedly provided on the inner side of the sealing ring (10).

3. The metal valve stem of hydraulic components according to claim 1, wherein, in: A rectangular hole (5) is provided through the connector (2), and the insert plate (4) is provided through the rectangular hole (5).

4. The metal valve stem of a hydraulic component according to claim 1, characterized in that, in: The metal head (3) has a rectangular groove (6) on its inner side, and the insert plate (4) is inserted into the rectangular groove (6).

5. The metal valve stem of a hydraulic component according to claim 1, characterized in that, in: The outer side of the metal head (3) has a through rectangular groove (6) with a through hole (8), and the threaded rod (7) is provided through the through hole (8).

6. The metal valve stem of a hydraulic component according to claim 2, characterized in that, in: The sealing gasket (11) is arranged in a ring shape, and the sealing gasket (11) is abutted against the connector (2).