Flange for an overhead stirrer
By using a flange body and sealing gasket made of high-strength alloy material, the mechanical strength and sealing performance issues of the flange for the upper agitator are solved, enabling reliable connection and rapid installation in complex environments.
Patent Information
- Application Number
- CN202521019677.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-02
- Estimated Expiration
- 2035-05-22
AI Technical Summary
The existing flanges for top agitators have poor mechanical strength, insufficient sealing effect and ease of installation, and cannot meet the needs of use in complex environments.
The flange body is made of high-strength alloy 42CrMo steel with a chrome-plated anti-corrosion layer, combined with standard-sized and evenly distributed mounting bolt holes, and equipped with sealing gaskets to enhance mechanical strength and sealing performance.
The flange has improved tensile and yield strength, enabling it to withstand torque and axial force during agitator operation, maintain good sealing performance, and facilitate quick connection and disassembly.
Smart Images

Figure CN224315681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flange technology, and in particular to a flange for an upper agitator. Background Technology
[0002] The upper agitator is a key component of the mixing equipment. It is installed on the top of the mixing container and is used to mix materials. When the upper agitator is working, it must withstand the torque of the mixing shaft, the impact force of the materials, and the pressure of different media. As a key component connecting the agitator and the equipment, the flange must ensure the sealing and stability of the connection.
[0003] Current flanges used for connection have certain drawbacks in use. They have poor mechanical strength, poor sealing effect, and poor ease of installation, which reduces the effectiveness of the flange and makes them unsuitable for use with upper agitators. Therefore, we propose a flange for upper agitators to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a flange for an upper agitator to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A flange for an upper agitator includes a flange body, a central hole on the upper surface of the flange body, and annularly arranged mounting bolt holes on the upper surface of the flange body. Each mounting bolt hole has a washer groove at its top, and a retaining washer is fitted into the inner wall of each washer groove. An annular groove is formed on the bottom surface of the flange body, and a sealing gasket is fitted into the inner wall of the annular groove.
[0007] In a further embodiment, the flange body is made of a high-strength alloy material.
[0008] In a further embodiment, the flange body comprises a 42CrMo steel layer and a chrome-plated anti-corrosion layer.
[0009] In a further embodiment, a model mark is provided on the upper surface of the flange body, and the model mark is located in the upper middle part of the flange body.
[0010] In a further embodiment, the sealing gasket may be a rubber gasket, a metal spiral wound gasket, or a graphite gasket.
[0011] In a further embodiment, the mounting bolt holes are of standard size and evenly distributed.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This device, with its flange body made of high-strength alloy material, 42CrMo steel layer, and chrome-plated anti-corrosion layer, effectively increases the strength and toughness of the flange, giving it high tensile and yield strength. It can withstand the enormous torque and axial force during agitator operation, ensuring reliable connection. The annular groove and sealing gasket allow it to operate in complex environments such as high pressure, high temperature, or corrosive media while maintaining good sealing performance. Standard-sized and evenly distributed mounting bolt holes facilitate quick connection and disassembly with other equipment, ensuring the effective use of the flange. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the flange used for the upper agitator.
[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the flange body in the upper agitator flange.
[0016] Figure 3 This is a bottom view of the flange body in the flange for the upper agitator.
[0017] Figure 4 This is a cross-sectional view of the internal material of the flange body in the upper agitator flange.
[0018] In the diagram: 1. Flange body; 11. 42CrMo steel layer; 12. Chrome-plated anti-corrosion layer; 2. Center hole; 3. Mounting bolt hole; 4. Locking washer; 5. Model number; 6. Washer groove; 7. Annular groove; 8. Sealing gasket. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] 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.
[0022] Please see Figure 1-4 In this utility model, a flange for an upper agitator includes a flange body 1. The upper surface of the flange body 1 has a central hole 2 and annularly arranged mounting bolt holes 3. Each mounting bolt hole 3 has a washer groove 6 at its top. A stop washer 4 is snapped into the inner wall of each washer groove 6. The bottom surface of the flange body 1 has an annular groove 7 and a sealing gasket 8 is snapped into the inner wall of the annular groove 7.
[0023] The flange body 1 is made of high-strength alloy material. The flange body 1 includes a 42CrMo steel layer 11 and a chrome-plated anti-corrosion layer 12, which enables the flange body 1 to have high tensile strength and yield strength, withstand the huge torque and axial force when the agitator is working, ensure the reliability of the connection, and improve the corrosion resistance of the flange and extend its service life.
[0024] The upper surface of the flange body 1 is marked with a model number 5, which is located in the upper middle part of the flange body 1. This model number 5 indicates the model of the flange body 1, making it easier for installers to understand and use the flange. The sealing gasket 8 can be a rubber gasket, a metal spiral wound gasket, or a graphite gasket, which enables the flange body 1 to maintain good sealing performance even in complex environments such as high pressure, high temperature, or corrosive media. The mounting bolt holes 3 adopt standard size and uniform distribution, which facilitates quick connection and disassembly with other equipment.
[0025] The working principle of this utility model is as follows:
[0026] This flange for agitators utilizes a flange body 1 made of high-strength alloy material 42CrMo steel with a layer 11, which increases the flange's strength and toughness. This gives the flange body 1 high tensile strength and yield strength, enabling it to withstand the huge torque and axial force during agitator operation and ensuring reliable connection. The chrome-plated anti-corrosion layer 12 improves the flange's corrosion resistance and extends its service life. The use of a sealing gasket 8 allows the flange body 1 to maintain good sealing performance even in complex environments such as high pressure, high temperature, or corrosive media. The standard-sized and evenly distributed mounting bolt holes 3 facilitate quick connection and disassembly with other equipment, enabling the effective use of this flange.
[0027] 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.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A flange for an upper agitator, characterized in that: The flange includes a flange body (1), the upper surface of which has a central hole (2) and a ring of mounting bolt holes (3) arranged in annularly. Each mounting bolt hole (3) has a gasket groove (6) at its top, and a stop washer (4) is fitted into the inner wall of each gasket groove (6). The bottom surface of the flange body (1) has an annular groove (7), and a sealing gasket (8) is fitted into the inner wall of the annular groove (7).
2. The flange for an upper agitator according to claim 1, characterized in that: The flange body (1) is made of high-strength alloy material.
3. The flange for an upper agitator according to claim 1, characterized in that: The flange body (1) includes a 42CrMo steel layer (11) and a chrome-plated anti-corrosion layer (12).
4. The flange for an upper agitator according to claim 1, characterized in that: The upper surface of the flange body (1) is provided with a model mark (5), which is located in the upper middle part of the flange body (1).
5. A flange for an upper agitator according to claim 1, characterized in that: The sealing gasket (8) can be a rubber gasket, a metal spiral wound gasket, or a graphite gasket.
6. A flange for an upper agitator according to claim 1, characterized in that: The mounting bolt holes (3) are designed with the required dimensions and are evenly distributed.