Composite flange steel ring
The composite flange steel ring design with inner steel stacking structure and limiting snap-fit solves the problems of material waste and sealing performance testing caused by flange size differences, realizes convenient disassembly and efficient sealing, and improves the reliability and service life of the flange.
Patent Information
- Application Number
- CN202520039316.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-08
AI Technical Summary
The large differences in existing flange sizes lead to waste of raw materials for smaller flanges and high replacement costs. Furthermore, one-piece molded flanges are not convenient for sealing and connection status inspection, making them prone to leakage and failure.
The flange adopts a superimposed structure of inner steel ring one, inner steel ring two, inner steel ring three, and outer steel ring, combined with sealing components and limiting components, and achieves detachability and sealing through bolt fixing and slot snap-fit.
It facilitates the disassembly, inspection, and replacement of flanges, ensures reliability under extreme conditions, increases flange service life and sealing performance, and improves connection stability.
Smart Images

Figure CN223648216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flange technology, specifically to a composite flange steel ring. Background Technology
[0002] Flanges are a common type of connector used in mechanical engineering and piping systems to connect pipes, valves, pumps, and other equipment to form a stable assembly.
[0003] Existing flanges vary greatly in size and are usually cast in one piece. Smaller flanges consume less raw materials and can be directly replaced when they cannot meet production needs. However, large equipment requires larger flanges. If they are also cast in one piece, not only will they consume more raw materials, but direct replacement will also be costly. In addition, one-piece flanges are not easy to inspect for sealing and connection status, making them prone to leakage and other failures. Therefore, we propose a composite flange steel ring. Utility Model Content
[0004] The purpose of this invention is to provide a composite flange steel ring to address the significant differences in the sizes of existing flanges mentioned in the background art. These flanges are typically cast in one piece. Smaller flanges consume less raw material, and can be directly replaced when they fail to meet production needs. However, large equipment requires larger flanges. If they were also cast in one piece, it would consume more raw material, and direct replacement would be costly. Furthermore, one-piece flanges are not easy to inspect for sealing and connection status, making them prone to leakage and other malfunctions.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite flange steel ring, comprising an inner steel ring one, an inner steel ring two, an inner steel ring three, and an outer steel ring, constituting a flange steel ring, and further comprising a sealing component and a limiting component. The sealing component is installed on the surface of the flange steel ring, and the limiting component is installed on the surface of the flange steel ring. After installation, the sealing component seals the surface of the flange steel ring.
[0006] Preferably, the sealing assembly includes a base plate and a top plate. The top plate is installed on the top of the flange steel ring, and the base plate is installed on the bottom of the flange steel ring. The base plate and the top plate are detachably connected. The sealing assembly also includes an installation groove, a limiting block, bolts, and a threaded groove. Limiting blocks are fixedly connected to all four sides of the base plate and the top plate. The top of the limiting blocks on the four sides of the top plate has an installation groove, and bolts are installed inside the installation groove. The top of the limiting blocks on the four sides of the base plate has a threaded groove that matches the bolts.
[0007] Preferably, the limiting component includes a retaining strip and a retaining groove, and the top of the flange steel ring consisting of inner steel ring one, inner steel ring two, inner steel ring three and outer steel ring is provided with a retaining groove of the same size.
[0008] Preferably, the inner sides of both the bottom plate and the top plate are fixedly connected with a locking strip that matches the locking slot.
[0009] Preferably, the outer diameter of the first inner steel ring is equal to the inner diameter of the second inner steel ring, the outer diameter of the second inner steel ring is equal to the inner diameter of the third inner steel ring, and the outer diameter of the third inner steel ring is equal to the inner diameter of the outer steel ring.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This utility model constructs a flange steel ring by sequentially stacking inner steel ring one, inner steel ring two, inner steel ring three, and outer steel ring. This ensures the performance of the flange steel ring while facilitating its disassembly for inspection, ensuring reliability under extreme conditions. If leakage, corrosion, or damage is found, it can be easily replaced in a timely manner. In addition, the top plate and bottom plate are installed on the upper and lower sides of the flange steel ring, and the limiting blocks on the sides of the top plate and bottom plate are fixed with bolts to achieve a seal of the flange steel ring and increase the service life of the flange.
[0012] 2. This utility model provides a locking strip on the inner side of the top plate and the bottom plate, which is connected to the locking groove at the top of the flange steel ring by the sequential stacking of inner steel ring one, inner steel ring two, inner steel ring three, and outer steel ring. This limits the connection between the top plate and the bottom plate and the flange steel ring, ensuring the stability of the flange steel ring formed by the sequential stacking of inner steel ring one, inner steel ring two, inner steel ring three, and outer steel ring during use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall disassembly structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the disassembly structure of the flange steel ring of this utility model;
[0016] In the diagram: 1. Base plate; 2. Top plate; 3. Mounting groove; 4. Limiting block; 5. Bolt; 6. Clip; 7. Inner steel ring one; 8. Inner steel ring two; 9. Inner steel ring three; 10. Outer steel ring; 11. Slot. Detailed Implementation
[0017] 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.
[0018] Example
[0019] Please see Figures 1-3 The composite flange steel ring shown in the figure includes an inner steel ring 1 (7), an inner steel ring 2 (8), an inner steel ring 3 (9), and an outer steel ring 10, which constitute a flange steel ring. It also includes a sealing component and a limiting component. The sealing component is installed on the surface of the flange steel ring, and the limiting component is installed on the surface of the flange steel ring. After the sealing component is installed, it seals the surface of the flange steel ring.
[0020] Furthermore, the sealing assembly includes a base plate 1 and a top plate 2. The top plate 2 is installed on the top of the flange steel ring, and the base plate 1 is installed on the bottom of the flange steel ring. The base plate 1 and the top plate 2 are detachably connected. The sealing assembly also includes an installation groove 3, a limiting block 4, a bolt 5, and a threaded groove. The limiting blocks 4 are fixedly connected to all four sides of the base plate 1 and the top plate 2. The top of the limiting blocks 4 on the four sides of the top plate 2 has an installation groove 3. The bolt 5 is installed inside the installation groove 3. The top of the limiting blocks 4 on the four sides of the base plate 1 has a threaded groove that matches the bolt 5.
[0021] Furthermore, the outer diameter of the inner steel ring 7 is equal to the inner diameter of the inner steel ring 8, the outer diameter of the inner steel ring 8 is equal to the inner diameter of the inner steel ring 9, and the outer diameter of the inner steel ring 9 is equal to the inner diameter of the outer steel ring 10.
[0022] The flange steel ring is constructed by sequentially stacking inner steel ring 7, inner steel ring 8, inner steel ring 3, and outer steel ring 10. This ensures the performance of the flange steel ring while facilitating its disassembly for inspection, ensuring reliability under extreme conditions. If leakage, corrosion, or damage is found, it can be replaced promptly. In addition, the top plate 2 and bottom plate 1 are installed on the upper and lower sides of the flange steel ring, and the limiting blocks 4 on the sides of the top plate 2 and bottom plate 1 are fixed with bolts 5 to achieve a seal of the flange steel ring and increase the service life of the flange.
[0023] Based on the aforementioned scheme, the limiting component includes a retaining strip 6 and a retaining groove 11. The inner steel ring 1, inner steel ring 2, inner steel ring 3, and outer steel ring 10 form a flange steel ring, and each of them has a retaining groove 11 of the same size on its top.
[0024] As a further improvement of this invention, the inner sides of both the bottom plate 1 and the top plate 2 are fixedly connected with a locking strip 6 that matches the locking slot 11;
[0025] A retaining strip 6 is installed on the inner side of the top plate 2 and the bottom plate 1. It is connected to the retaining groove 11 on the top of the flange steel ring by sequentially stacking the inner steel ring 7, inner steel ring 8, inner steel ring 9, and outer steel ring 10. This retaining strip limits the connection between the top plate 2 and the bottom plate 1 and the flange steel ring, ensuring the stability of the flange steel ring formed by the sequentially stacked inner steel ring 7, inner steel ring 8, inner steel ring 9, and outer steel ring 10 during use.
[0026] It should be noted that this utility model is a composite flange steel ring. First, inner steel ring 7 (made of carbon steel and polytetrafluoroethylene (a special synthetic polymer with chemical stability and high temperature resistance) to ensure stability under harsh conditions such as high temperature and high pressure), inner steel ring 8 (made of carbon steel), inner steel ring 9 (made of alloy steel, providing good strength and toughness), and outer steel ring 10 (made of stainless steel, ensuring stability under high temperature and high pressure while also having a certain degree of rust resistance) are stacked sequentially to form the flange steel ring. Then, the flange steel ring is placed on the base plate 1 (made of carbon steel). The top plate 2 (made of carbon steel) is placed on top of the flange ring, and the groove 11 at the bottom of the flange ring is engaged with the strip 6 on the surface of the bottom plate 1. This limits the connection between the top plate 2, the bottom plate 1 and the flange ring, ensuring stability during use. Then, the bolts 5 are inserted into the mounting groove 3 on the top of the limiting block 4 on the side of the top plate 2, and the bolts 5 are rotated to fix the threaded groove on the surface of the limiting block on the side of the bottom plate 1. The top plate 2 and the bottom plate 1 limit the surface of the flange ring, increasing the service life of the flange.
[0027] 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.
[0028] 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 composite flange steel ring, comprising an inner steel ring one (7), an inner steel ring two (8), an inner steel ring three (9), and an outer steel ring (10), constituting a flange steel ring, characterized in that: It also includes a sealing component and a limiting component. The sealing component is installed on the surface of the flange steel ring, and the limiting component is installed on the surface of the flange steel ring. After installation, the sealing component seals the surface of the flange steel ring.
2. The composite flange steel ring according to claim 1, characterized in that: The sealing assembly includes a base plate (1) and a top plate (2). The top plate (2) is installed on the top of the flange steel ring, and the base plate (1) is installed on the bottom of the flange steel ring. The base plate (1) and the top plate (2) are detachably connected.
3. The composite flange steel ring according to claim 2, characterized in that: The sealing assembly also includes a mounting groove (3), a limiting block (4), a bolt (5) and a threaded groove. The bottom plate (1) and the top plate (2) are fixedly connected to the limiting blocks (4) around their sides. The top of the limiting blocks (4) around the sides of the top plate (2) has a mounting groove (3) and the bolt (5) is installed inside the mounting groove (3).
4. A composite flange steel ring according to claim 3, characterized in that: The top of the limiting blocks (4) around the sides of the base plate (1) is provided with threaded grooves that match the bolts (5).
5. A composite flange steel ring according to claim 1, characterized in that: The limiting component includes a retaining strip (6) and a retaining groove (11). The inner steel ring one (7), inner steel ring two (8), inner steel ring three (9) and outer steel ring (10) all have retaining grooves (11) of the same size on the top of the flange steel ring.
6. A composite flange steel ring according to claim 3, characterized in that: The bottom plate (1) and the top plate (2) are both fixedly connected with card strips (6) that match the card slot (11).
7. A composite flange steel ring according to claim 1, characterized in that: The outer diameter of the first inner steel ring (7) is equal to the inner diameter of the second inner steel ring (8), the outer diameter of the second inner steel ring (8) is equal to the inner diameter of the third inner steel ring (9), and the outer diameter of the third inner steel ring (9) is equal to the inner diameter of the outer steel ring (10).