Stainless steel ball valve
Through the integrated shell structure cast by stainless steel, the existing ball valve shell has large wall thickness, many consumables and high cost, and the wall thickness and cost reduction are achieved, while ensuring the sealing and rotation of the ball valve. performance.
Patent Information
- Application Number
- CN202421272634.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-05
AI Technical Summary
Existing ball valve housings are usually made of hot stamping, resulting in large wall thickness, many consumables and high cost.
The integrated shell structure is made of stainless steel. The annular positioning part and the internal threaded connection part are connected to the annular inner plug and the sealing ring to achieve the installation and sealing of the ball plug.
It effectively reduces the wall thickness of the valve body shell, reduces the cost, and ensures the sealing and rotational performance of the ball valve.
Smart Images
Figure CN222502748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a ball valve, in particular to a stainless steel ball valve. Background Art
[0002] Ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and they play an important role in the national economy. They have a 90-degree rotating action, and the plug body is a sphere with a circular through hole or channel passing through its axis.
[0003] Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. They can be closed tightly by simply rotating 90 degrees and using a very small torque.
[0004] The existing ball valve shell is usually divided into two parts, left and right, which are connected by threads to facilitate the installation of the ball plug in the middle. The shell part is usually formed by hot stamping, commonly known as "red stamping", and is basically made of copper, with thick walls, more consumables and high costs. Utility Model Content
[0005] In view of the above problems, the utility model aims to provide a stainless steel ball valve, which has a simple and novel structure and can be made into a thin-wall structure to reduce consumables.
[0006] The technical solution of the utility model is a stainless steel ball valve, comprising a valve body shell, a ball plug located inside the valve body shell, and a connecting rod connected to the top of the ball plug and passing through the valve body shell, characterized in that: the valve body shell is an integrated shell cast from stainless steel, an annular positioning portion is extended from the inside of one side of the valve body shell, and an internal threaded connecting portion is arranged inside the other side, an annular inner plug is connected to the internal threaded connecting portion, an installation cavity for installing the ball plug is formed on the inner side of the middle part of the valve body shell, a first sealing ring is arranged at the annular positioning portion, a second sealing ring is arranged at the annular inner plug, the ball plug is arranged in the installation cavity and sealing is achieved by squeezing the spherical surface with the first sealing ring and the second sealing ring on both sides respectively.
[0007] Preferably, a guide block is provided at the top of the installation cavity of the valve body shell, and the connecting rod passes through the center hole of the guide block.
[0008] Preferably, the guide block is threadedly connected to the top of the valve body shell.
[0009] The utility model can effectively reduce the wall thickness and reduce the cost by improving the valve body shell structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model;
[0011] Figure 2 for Figure 1 A top view of
[0012] Figure 3 for Figure 2 Cross-sectional view along AA direction;
[0013] Among them: 1—valve body shell; 11—annular positioning part; 12—internal thread connection part; 13—installation cavity; 2—ball plug; 3—connecting rod; 4—annular inner plug; 5—first sealing ring; 6—second sealing ring; 7—guide block. DETAILED DESCRIPTION
[0014] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0015] like Figures 1 to 3 As shown, the utility model provides a stainless steel ball valve, comprising a valve body shell 1, a ball plug 2 located inside the valve body shell 1, and a connecting rod 3 connected to the top of the ball plug 2 and passing through the valve body shell 1, the valve body shell 1 is an integrated shell cast from stainless steel, an annular positioning portion 11 is extended from the inside of one side of the valve body shell 1, and an internal threaded connection portion 12 is arranged inside the other side, an annular inner plug 4 is connected to the internal threaded connection portion 12, an installation cavity 13 for installing the ball plug 2 is formed on the inner side of the middle part of the valve body shell 1, a first sealing ring 5 is arranged at the annular positioning portion 11, and a second sealing ring 6 is arranged at the annular inner plug 4, the ball plug 2 is arranged in the installation cavity 13 and the two sides are sealed by squeezing the spherical surface with the first sealing ring 5 and the second sealing ring 6 respectively.
[0016] On the basis of the above solution, a guide block 7 is provided at the top of the installation cavity 13 of the valve body housing 1 , and the connecting rod 3 passes through the center hole of the guide block 7 .
[0017] Furthermore, the guide block 7 is threadedly connected to the top of the valve body shell 1 .
[0018] The utility model improves the structure of the valve body shell 1 itself, changes the original hot-stamped left and right shell split structure into an integrated casting structure, and connects the annular inner plug 4, which can effectively reduce the wall thickness and reduce the cost.
[0019] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.
Claims
1. A stainless steel ball valve, comprising a valve body shell (1), a ball plug (2) located inside the valve body shell (1), and a connecting rod (3) connected to the top of the ball plug (2) and passing through the valve body shell (1), characterized in that: The valve body shell (1) is an integral shell cast from stainless steel, an annular positioning portion (11) is extended from the inside of one side of the valve body shell (1), and an internal thread connection portion (12) is provided inside the other side, an annular inner plug (4) is connected to the internal thread connection portion (12), an installation cavity (13) for installing the ball plug (2) is formed on the inner side of the middle part of the valve body shell (1), a first sealing ring (5) is provided at the annular positioning portion (11), and a second sealing ring (6) is provided at the annular inner plug (4), the ball plug (2) is arranged in the installation cavity (13) and the two sides are sealed by squeezing the spherical surface with the first sealing ring (5) and the second sealing ring (6) respectively.
2. The stainless steel ball valve according to claim 1, characterized in that: The valve body shell (1) is provided with a guide block (7) at the top of the installation cavity (13), and the connecting rod (3) passes through the central hole of the guide block (7).
3. The stainless steel ball valve according to claim 2, characterized in that: The guide block (7) is threadedly connected to the top of the valve body shell (1).