Fastening nut for anode furnace gas refining pipe joint
By using an integrally molded fastener to fully weld the nut body to the side of the anode furnace gasification pipe joint, the problem of loosening of the fastener nut was solved, a high-strength connection was achieved, and the stability of the system was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-04-07
AI Technical Summary
The fastening nuts of the anode furnace gasification pipe joints are prone to loosening, leading to unstable connections and affecting the normal operation of the system.
A one-piece molded fastener is used instead of a steel bar handle, and a through hole is opened in the middle of the fastener to connect it to the side of the nut body by full welding, thereby increasing the welding area and improving the connection strength.
This enhances the connection strength of the fastening nut, preventing the fastener from detaching from the side of the nut body and ensuring the stable operation of the system.
Smart Images
Figure CN224093671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of nuts, in particular to a fastening nut for an anode furnace gas pipe joint. BACKGROUND
[0002] In a gas conveying system, the gas pipe joint plays a very important role. If the gas pipe joint is not firmly connected or gas leakage occurs, the gas flow will be poor, and even the normal operation of the whole system will be affected.
[0003] The outer end surface of the anode furnace gas pipe joint is provided with coarse threads, and the inner threads of the fastening nut are embedded with the outer threads of the gas pipe joint to achieve fastening. However, the fastening nut is prone to loosening through the fastening mode of the coarse threads. In order to re-tighten the loosened fastening nut, a steel bar is usually welded on the side of the fastening nut as a handle, and the fastening nut is tightened by knocking the handle with a hammer.
[0004] However, since the welding area of the steel bar and the side of the fastening nut is small, no matter how the welding point is enhanced, the welding point is still relatively weak, thereby causing the handle to be easily detached when the worker knocks the handle. CONTENT OF THE UTILITY MODEL
[0005] To solve or partially solve the problems in the related art, the application provides a fastening nut for an anode furnace gas pipe joint.
[0006] To achieve the above-mentioned purpose, the application is realized through the following technical scheme:
[0007] The fastening nut for the anode furnace gas pipe joint comprises a nut body, and further comprises:
[0008] The fixing member is integrally formed, the middle part of the fixing member is provided with a through hole matched with the outer circle of the nut body, and the through hole is fully welded with the side of the nut body.
[0009] Optionally, the fixing member is a stainless steel plate with a length of 300 mm, a width of 100 mm and a thickness of 20 mm.
[0010] Optionally, the fixing member is an equilateral triangular stainless steel plate with a side length of 150 mm and a thickness of 20 mm.
[0011] Optionally, the fixing member comprises at least one pair of arc-shaped protruding parts.
[0012] Optionally, a reinforcing rib is welded between the arc-shaped protruding part and the nut body.
[0013] Optionally, the reinforcing rib is symmetrically arranged on both sides of the arc-shaped protruding part.
[0014] Optionally, the through hole and the weld seam between the reinforcing rib and the arc-shaped protruding part and the nut body are heat treated.
[0015] The application has the following advantages: the fixing part is integrally formed to replace the steel handle, and a through hole is formed in the middle of the fixing part. The side edge of the nut body is fixed by full welding connection with the through hole. The welding area between the through hole and the nut body is increased by this welding method, and the welding seam between them is fully filled. Therefore, the connection strength is large, and the fixing part will not fall off from the side edge of the nut body even if it is knocked several times.
[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the application. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the figures, and in which:
[0018] Figure 1 is a front view of the fastening nut shown in Embodiment One of the application;
[0019] Figure 2 is a side view of the fastening nut shown in Embodiment One of the application;
[0020] Figure 3 is a front view of the fastening nut shown in Embodiment Two of the application;
[0021] Figure 4 is a front view of the fastening nut shown in Embodiment Three of the application;
[0022] Figure 5 is a side view of the fastening nut shown in Embodiment Three of the application.
[0023] Reference signs: 1 nut body, 2 fixing part, 3 through hole, 4 arc-shaped protruding part, 5 reinforcing rib, 6 recess. DETAILED DESCRIPTION
[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention as the specific circumstances dictate.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0029] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
[0030] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
[0031] To make the objectives, technical solutions, and beneficial effects of this application clearer, the preferred embodiments of this application will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.
[0032] Example 1:
[0033] See Figure 1 and Figure 2 A fastening nut for an anode furnace gasification pipe joint, comprising a nut body 1, wherein the fastening nut for the anode furnace gasification pipe joint further comprises:
[0034] The fastener 2 is integrally formed. The fastener 2 has a through hole 3 in the middle that matches the outer circle of the nut body 1. The through hole 3 is fully welded to the side of the nut body 1.
[0035] The fastener 2 is a stainless steel plate with a length of 300mm, a width of 100mm, and a thickness of 20mm.
[0036] Specifically, the nut body 1 is a hexagonal nut with a threaded hole in the middle. The inner diameter of the threaded hole matches the outer diameter of the anode furnace gasification pipe joint. The fastener 2 is integrally formed. Compared with the traditional processing method, the integral forming process does not require multiple processing and splicing, reducing material loss and processing steps, and improving production efficiency. In this embodiment, both the nut body 1 and the fastener 2 are made of stainless steel. The fastener 2 is a stainless steel plate with a length of 300mm, a width of 100mm, and a thickness of 20mm. This type of steel plate is easy to manufacture. In addition, stainless steel has good corrosion resistance and can resist the erosion of chemicals such as oxidation, acid, and alkali. It can be used for a long time even in humid environments. At the same time, stainless steel also has high strength and good compressive, tensile, and bending resistance, and can withstand multiple impacts. Stainless steel also has good high temperature resistance and can be used for a long time in high temperature environments without deformation or loss of performance.
[0037] Traditional rebar handles have limited connection strength because the cross-sectional area of the rebar is small, resulting in a small welding area between the rebar and the fastening nut. In this embodiment, an integrally formed fastener 2 is used instead of a rebar handle, and a through hole 3 is opened in the middle of the fastener 2. The through hole 3 is fixed to the side of the nut body 1 by full welding. This welding method increases the welding area between the through hole 3 and the nut body 1, and the weld between the two is completely filled, resulting in a strong connection. Even with repeated tapping, the fastener 2 will not fall off the side of the nut body 1.
[0038] In use, simply tap the side of the fixing part 2 with a hammer to make the fixing part 2 drive the nut body 1 to rotate, thereby tightening the nut body 1.
[0039] Example 2:
[0040] See Figure 3 Based on Embodiment 1, and optionally, the fastener 2 is an equilateral triangular stainless steel plate with a side length of 150mm and a thickness of 20mm.
[0041] In this embodiment, an equilateral triangular stainless steel plate with a side length of 150mm and a thickness of 20mm was used instead of the stainless steel plate with a length of 300mm, a width of 100mm, and a thickness of 20mm in Embodiment 1. Compared with the square steel plate, the interior angle of the triangle is smaller, so the corners are more prominent, which is more conducive to hammering. In addition, the surface area of the triangular steel plate is smaller, which can save costs.
[0042] Example 3:
[0043] See Figure 4 and Figure 5 Based on Embodiment 1, and optionally, the fastener 2 includes at least a pair of arc-shaped protrusions 4.
[0044] Specifically, in this embodiment, there are three pairs of arc-shaped protrusions 4, and the adjacent arc-shaped protrusions 4 form a recess 6, so that the fastener 2 presents a petal-like shape. In this way, the nut body 1 can be tightened by striking the arc-shaped protrusions 4. Compared with the square steel plate in Embodiment 1, the arc-shaped protrusions 4 are more conducive to the hammer's strike. In addition, compared with the triangular steel plate in Embodiment 2, the ends of the arc-shaped protrusions 4 have a certain width, so their impact resistance is stronger and they are less likely to be damaged. At the same time, since there are three pairs of arc-shaped protrusions 4, if one arc-shaped protrusion 4 is damaged, the other arc-shaped protrusions 4 can still be used, extending the service life of the fastener 2.
[0045] Further, and optionally, a reinforcing rib 5 is welded between the arc-shaped protrusion 4 and the nut body 1.
[0046] Furthermore, and optionally, the reinforcing ribs 5 are symmetrically arranged on both sides of the arc-shaped protrusion 4.
[0047] Specifically, one end of the reinforcing rib 5 is fixedly connected to one side of the arc-shaped protrusion 4, and the other end is fixedly connected to the side of the nut body 1. Reinforcing ribs 5 are provided on both sides of the arc-shaped protrusion 4, and the two reinforcing ribs 5 are symmetrical about the arc-shaped protrusion 4. In this embodiment, a total of six pairs of reinforcing ribs 5 are provided. This arrangement further improves the connection strength between the fixing member 2 and the nut body 1, further prevents the fixing member 2 from falling off the side of the nut body 1, enhances the structural stability of the fixing member 2, and improves its service life.
[0048] Further and optionally, the weld between the through hole 3 and the nut body 1, as well as the weld between the reinforcing rib 5 and the arc-shaped protrusion 4 and the nut body 1, are heat-treated.
[0049] Heat treatment of the weld can eliminate residual stress generated during welding, stabilize the shape and size of the structure, and reduce distortion. Furthermore, weld heat treatment can improve the microstructure of the welded joint, enhancing its corrosion resistance; additionally, it can further release harmful gases in the weld metal, especially hydrogen, preventing delayed cracking.
[0050] In addition, rust prevention treatment can be applied to the weld to ensure the connection performance between the fastener 2 and the nut body 1. For example, rust-preventive paint can be sprayed on the weld, or acid or special passivation liquid can be used to passivate the weld, or the weld can be ground and polished.
[0051] In summary, this application replaces the steel handle with an integrally formed fastener 2, and a through hole 3 is opened in the middle of the fastener 2. The through hole 3 is fixed to the side of the nut body 1 by full welding. This welding method increases the welding area between the through hole 3 and the nut body 1, and the weld between the two is completely filled, resulting in a high connection strength. Even with repeated hammering, the fastener 2 will not detach from the side of the nut body 1. This application uses an equilateral triangular stainless steel plate instead of a square steel plate, making the fastener 2 more conducive to hammering. In addition, the triangular steel plate has a smaller surface area, which saves costs. The fastener 2 of this application includes an arc-shaped protrusion 4, and the fastener 2 as a whole presents a petal-like shape. In this way, The nut body 1 can be tightened by striking the arc-shaped protrusion 4. Compared with square steel plates, the arc-shaped protrusion 4 is more conducive to hammering. In addition, compared with triangular steel plates, the end of the arc-shaped protrusion 4 has a certain width, so its impact resistance is stronger and it is less prone to damage. At the same time, since there are three pairs of arc-shaped protrusions 4, if one arc-shaped protrusion 4 is damaged, the other arc-shaped protrusions 4 can still be used, effectively extending the service life of the fastener 2. This application further improves the connection strength between the arc-shaped protrusion 4 and the nut body 1 by welding reinforcing ribs 5 between them, further preventing the fastener 2 from falling off the side of the nut body 1, and enhancing the structural stability of the fastener 2.
[0052] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this application; the dimensions of the drawings are not related to the specific physical object, and the physical object dimensions can be arbitrarily changed.
Claims
1. A fastening nut for anode furnace gasification pipe joint, comprising a nut body (1), characterized in that, The fastening nut for the anode furnace gasification pipe joint also includes: The fastener (2) is integrally formed. A through hole (3) matching the outer circle of the nut body (1) is provided in the middle of the fastener (2). The through hole (3) is fully welded to the side of the nut body (1).
2. The fastening nut for the gasification pipe joint of the anode furnace as described in claim 1, characterized in that, The fastener (2) is a stainless steel plate with a length of 300mm, a width of 100mm, and a thickness of 20mm.
3. The fastening nut for the gasification pipe joint of the anode furnace as described in claim 1, characterized in that, The fastener (2) is an equilateral triangular stainless steel plate with a side length of 150mm and a thickness of 20mm.
4. The fastening nut for the gasification pipe joint of the anode furnace as described in claim 1, characterized in that, The fastener (2) includes at least one pair of arcuate protrusions (4).
5. The fastening nut for the gasification pipe joint of the anode furnace as described in claim 4, characterized in that, A reinforcing rib (5) is welded between the arc-shaped protrusion (4) and the nut body (1).
6. The fastening nut for the gasification pipe joint of an anode furnace as described in claim 1, characterized in that, The reinforcing ribs (5) are symmetrically arranged on both sides of the arc-shaped protrusion (4).
7. The fastening nut for the gasification pipe joint of an anode furnace as described in claim 1 or 5, characterized in that, The weld between the through hole (3) and the nut body (1), as well as the weld between the reinforcing rib (5) and the arc-shaped protrusion (4) and the nut body (1), shall be heat-treated.