Reinforced flat flange
By installing flange reinforcement components on the flange body and adopting an inner and outer double-layer reinforcement structure, the problems of loose connection and poor airtightness of traditional flat flanges are solved, achieving higher connection strength and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional flat flanges are prone to loosening under prolonged use or vibration, resulting in insufficient connection strength, poor airtightness, and affecting the normal use of equipment.
A reinforced flat flange was designed. By installing flange reinforcement components, including moving parts, rotating parts and reinforcement parts, on the flange body, the connection strength and stability are improved by utilizing an inner and outer double-layer reinforcement structure.
It enhances the stability and airtightness of flange connections, reduces the risk of deformation caused by external impacts or collisions, and improves the overall strength and performance of the connection.
Smart Images

Figure CN224033294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flat flange technology, specifically a reinforced flat flange. Background Technology
[0002] A flange connection involves first fixing two pipes, fittings, or equipment to separate flanges, then placing a gasket between the two flanges and tightening them together with bolts. Some fittings and equipment already have integrated flanges, which also fall under the category of flange connections. Flange connections are an important connection method in pipeline construction. They are convenient to use and can withstand considerable pressure. In industrial production, flat flanges are a commonly used connecting component, widely applied to the connection of pipes and equipment.
[0003] However, traditional flat flanges consist of a flange body and a ring of holes, which are not strong enough for the connection between equipment. Under prolonged use or vibration, the bolts are prone to loosening, leading to connection failure. In addition, some pipe connections may need to withstand forces in different directions. If the connection strength of the flange is insufficient, gaps will appear between the pipe connections, which can easily lead to poor airtightness at the connection and affect the normal use of the equipment. Utility Model Content
[0004] The purpose of this utility model is to provide a solution to the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a reinforced flat flange, comprising a flange body, the flange body being a disc-shaped structure, a through hole being provided inside the flange body, threaded holes being provided on the disc of the flange body, the threaded holes being evenly distributed on the flange body, a flange reinforcement component being installed on the flange body, an annular groove being provided on the flange body, the flange reinforcement component being installed in the annular groove, and the flange reinforcement component being movably connected to the flange body.
[0006] In the aforementioned reinforced flat flange, the annular groove includes a first groove and a second groove, wherein the first groove is located on the outside of the flange body and the second groove is located inside the flange body.
[0007] In the aforementioned reinforced flat flange, the flange reinforcement assembly includes a movable part, a rotating part, and a reinforcement component. The movable part has a circular ring structure, and two sets of reinforcement components are provided, with the two sets of reinforcement components respectively fixedly installed on the outer side of the movable part. A connecting block is fixedly provided on the inner ring of the movable part.
[0008] In the aforementioned reinforced flat flange, the rotating component is located within the second slide groove, and the rotating component is movably connected to the second slide groove.
[0009] In the aforementioned reinforced flat flange, the connecting block is located within the first groove, and the connecting block passes through the first groove and is fixedly connected to the rotating component.
[0010] In the aforementioned reinforced flat flange, the thickness of the connecting block is equal to the thickness of the first groove.
[0011] In the above-mentioned reinforced flat flange, the movable part, the reinforcing member, and the connecting block are integrally formed, and the reinforcing member is provided with a reinforcing hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model has a flange reinforcement component installed on the flange body. The flange reinforcement component can rotate on the flange body, thereby rotating the position of the reinforcement component as needed and installing bolts on the reinforcement holes of the reinforcement component. In this way, the overall connection strength of the flat flange can be improved through double-layer reinforcement, reducing the risk of deformation caused by external impact or collision and improving the stability of the connection.
[0014] 2. Because the flange reinforcement component of this utility model can rotate on the flange body, the reinforcement position can be easily adjusted, reducing the limitations of flat flange use, improving the airtightness of pipeline connections, and making it convenient and effective to use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the internal structure of the side of this utility model;
[0016] Figure 2 This is a schematic diagram of the front structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the flange reinforcement assembly structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of this utility model without the flange reinforcement component installed.
[0019] In the figure: 1. Flange body; 2. Through hole; 3. Flange reinforcement assembly; 31. Moving part; 32. Rotating part; 33. Reinforcing part; 34. Connecting block; 35. Reinforcing hole; 4. Annular groove; 41. First slide groove; 42. Second slide groove; 5. Threaded hole. 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 a reinforced flat flange technical solution: it includes a flange body 1, the flange body 1 is a disc-shaped structure, the flange body 1 has a through hole 2 inside, the flange body 1 has threaded holes 5 on the disc, the threaded holes 5 are evenly distributed on the flange body 1, a flange reinforcement component 3 is installed on the flange body 1, the flange body 1 is provided with an annular groove 4, the flange reinforcement component 3 is installed in the annular groove 4, and the flange reinforcement component 3 is movably connected to the flange body 1.
[0022] In this embodiment, by installing a flange reinforcement component 3 on the flange body 1, the flange reinforcement component 3 can rotate on the flange body 1, thereby rotating the position of the reinforcement component 3 as needed.
[0023] Furthermore, the annular groove 4 includes a first groove 41 and a second groove 42, wherein the first groove 41 is located on the outside of the flange body 1 and the second groove 42 is located inside the flange body 1.
[0024] In this embodiment, the annular groove 4 is used to install the flange reinforcement component 3, so that the flange reinforcement component 3 can rotate smoothly on the flange body 1, while ensuring the strength of the flange reinforcement component 3.
[0025] Furthermore, the flange reinforcement assembly 3 includes a movable part 31, a rotating part 32, and a reinforcement part 33. The movable part 31 has a circular structure, and two sets of reinforcement parts 33 are provided. The two sets of reinforcement parts 33 are respectively fixedly installed on the outer side of the movable part 31, and a connecting block 34 is fixedly provided on the inner ring of the movable part 31.
[0026] In this embodiment, after welding the flange body 1 onto the pipe, when connecting the two sets of flanges, the two flanges are first fixed through the threaded hole 5 on the flange body 1. When fixing in certain directions, the position of the rotating reinforcement part 33 is reinforced.
[0027] Furthermore, the rotating component 32 is located within the second slide groove 42, and the rotating component 32 is movably connected to the second slide groove 42.
[0028] Furthermore, the connecting block 34 is located within the first slide groove 41, and the connecting block 34 passes through the first slide groove 41 and is fixedly connected to the rotating component 32.
[0029] Furthermore, the thickness of the connecting block 34 is equal to the thickness of the first groove 41, which improves the stability of the movement of the connecting block 34.
[0030] Furthermore, the movable part 31, the reinforcing part 33, and the connecting block 34 are integrally formed, and the reinforcing part 33 is provided with a reinforcing hole 35.
[0031] In this embodiment, bolts are installed in the reinforcing holes 35 of the reinforcing member 33. This double-layer reinforcement, both inside and out, can improve the connection strength of the flat flange.
[0032] Working principle: This utility model has a flange reinforcement component 3 installed on the flange body 1. The flange reinforcement component 3 can rotate on the flange body 1, thereby rotating the position of the reinforcement component 3 as needed. In use, after welding the flange body 1 to the pipeline, when connecting two sets of flanges, the two flanges are first fixed through the threaded holes 5 on the flange body 1. For fixing in certain directions, the position of the reinforcement component 33 is rotated, and bolts are installed in the reinforcement holes 35 of the reinforcement component 33. In this way, through double reinforcement inside and outside, the overall connection strength of the flat flange can be improved, the risk of deformation caused by external impact or collision can be reduced, and the stability of the connection can be improved.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reinforced flat flange, comprising a flange body (1), characterized in that: The flange body (1) is a disc-shaped structure. The flange body (1) has a through hole (2) inside. The flange body (1) has a threaded hole (5) on the disc. The threaded holes (5) are evenly distributed on the flange body (1). The flange body (1) is equipped with a flange reinforcement component (3). The flange body (1) has an annular groove (4). The flange reinforcement component (3) is installed in the annular groove (4). The flange reinforcement component (3) is movably connected to the flange body (1).
2. The reinforced flat flange according to claim 1, characterized in that, The annular groove (4) includes a first groove (41) and a second groove (42), the first groove (41) being located on the outside of the flange body (1) and the second groove (42) being located inside the flange body (1).
3. A reinforced flat flange according to claim 2, characterized in that, The flange reinforcement assembly (3) includes a movable part (31), a rotating part (32), and a reinforcement part (33). The movable part (31) has a circular structure. The reinforcement part (33) is provided in two sets, and the two sets of reinforcement parts (33) are respectively fixedly installed on the outside of the movable part (31). A connecting block (34) is fixedly provided on the inner ring of the movable part (31).
4. A reinforced flat flange according to claim 3, characterized in that, The rotating component (32) is located in the second slide groove (42), and the rotating component (32) is movably connected to the second slide groove (42).
5. A reinforced flat flange according to claim 4, characterized in that, The connecting block (34) is located in the first slide groove (41), and the connecting block (34) passes through the first slide groove (41) and is fixedly connected to the rotating component (32).
6. A reinforced flat flange according to claim 5, characterized in that, The thickness of the connecting block (34) is equal to the thickness of the first groove (41).
7. A reinforced flat flange according to claim 6, characterized in that, The movable part (31), the reinforcing part (33), and the connecting block (34) are integrally formed, and the reinforcing part (33) has a reinforcing hole (35).