Flange with sealing positioning structure
By designing a snap-fit ring and sealing ring interlocking structure on the flange, the problem of loose sealing gaskets is solved, sealing performance and docking efficiency are improved, and the flange connection process is simplified.
Patent Information
- Application Number
- CN202422968313.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-11-14
AI Technical Summary
Traditional flanges rely on gaskets that are prone to loosening or falling off, affecting sealing performance, and the connection process is cumbersome and time-consuming.
The flange is designed with a sealing and positioning structure, which uses a snap-fit convex ring and a sealing ring to fit together. The sealing ring protrudes from the mating surface to fill the gap. Combined with the fitting structure of the mating block and the positioning groove, the sealing performance and docking efficiency are improved.
It improves the sealing performance and stability of the flange, simplifies the docking process, and enhances connection efficiency.
Smart Images
Figure CN223662868U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flange technology, specifically relating to a flange with a sealing and positioning structure. Background Technology
[0002] In mechanical engineering, a flange is a disc-shaped part that is typically used to connect pipes, equipment, or components. Flanges usually have bolt holes, and two flanges are connected together using fasteners such as bolts and nuts, thereby achieving the connection of pipes or equipment. Flange connections have advantages such as easy disassembly, high strength, and good sealing performance, and are widely used in pipe and equipment connections in industries such as petroleum, chemical, power, and metallurgy.
[0003] Common flange standards include European standards (EN), American standards (ANSI), and Japanese standards (JIS). When selecting flanges, it is necessary to determine the appropriate standard and specifications based on factors such as the specific application scenario, working pressure, working temperature, and media properties. Flanges are typically used to connect various complex components and equipment to meet specific functional and performance requirements. Given the stringent requirements of the flange connection process, ensuring a robust and reliable sealing structure after flange connection is crucial in all aspects of flange application. Traditionally, flanges rely on gaskets for sealing. However, this method may encounter problems such as gasket detachment or loosening during subsequent use, which not only weakens the flange's sealing performance but may also adversely affect its overall performance. Furthermore, traditional flange connection methods primarily rely on corresponding holes for connection. While this method achieves the connection purpose to some extent, it limits the efficiency of flange connection, making the entire process relatively cumbersome and time-consuming. Utility Model Content
[0004] The purpose of this invention is to provide a flange with a sealing and positioning structure, aiming to solve the problem that flanges often rely on gaskets to achieve a sealing effect. However, this method may encounter problems such as gasket detachment or loosening during subsequent use, which not only weakens the sealing performance of the flange but may also adversely affect the overall performance of the flange. In addition, traditional flange connection methods mainly rely on corresponding holes for connection. While this method can achieve the connection purpose to a certain extent, it limits the efficiency of flange connection, making the entire connection process relatively cumbersome and time-consuming.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a flange with a sealing and positioning structure, including a positioning flange and a mating flange installed on the bottom surface of the positioning flange, wherein locking screws are connected through the surfaces of both the positioning flange and the mating flange;
[0006] Both the positioning flange and the mating flange have sealing ring grooves on their mating surfaces. The positioning flange has a sealing positioning groove on its mating surface. A snap-fit protruding ring is connected to the inner wall of the sealing ring groove. A sealing ring is connected to the inner wall of the sealing positioning groove. A mating block is connected to the mating surface of the mating flange. The positioning flange has a positioning groove on its mating surface.
[0007] As a preferred flange with a sealing and positioning structure according to this utility model, the clamping convex ring and the sealing ring are an integral structure, and the cross-section of the clamping convex ring and the sealing ring is T-shaped.
[0008] As a preferred flange with a sealing and positioning structure of this utility model, the mounting convex ring and the sealing ring groove form an interlocking structure, and the outermost side of the sealing ring protrudes from the mating surface of the positioning flange.
[0009] As a preferred embodiment of the flange with a sealing and positioning structure of this utility model, four mating blocks are provided, and the four mating blocks are distributed at equal intervals around the center of the mating surface of the mating flange.
[0010] As a preferred embodiment of the flange with a sealing and positioning structure of this utility model, the top of the positioning flange is connected to a connecting pipe, the outer side wall of the connecting pipe is connected to a side clamp, one side of the side clamp is connected to a butt clamp, and anti-slip pads are installed on the inner sides of both the side clamp and the butt clamp.
[0011] As a preferred flange with a sealing and positioning structure of this utility model, both ends of the side clamp are connected to assembly blocks, both ends of the mating clamp near the assembly blocks are connected to assembly seats, the side of the assembly block near the assembly seat is connected to an insert, the side of the assembly seat is provided with a slot, and a bolt is connected through the surface of the assembly block, the bolt passes through the assembly block and is threadedly connected to the assembly seat.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention involves fitting a snap-fit convex ring on one side of the sealing ring into the inner wall of the sealing ring groove on the flange mating surface. This then drives the sealing ring into the sealing positioning groove on the flange mating surface. Because the sealing ring protrudes from the flange mating surface, when the positioning flange and the mating flange are mated, the sealing ring undergoes compression deformation, filling the gaps created on the flange mating surface, thereby improving the flange's sealing performance. Furthermore, the structure formed by the snap-fit convex ring and the sealing ring enhances the stability of the sealing ring. Additionally, when the positioning flange and the mating flange are mated, the mating block and the positioning groove engage, improving the positioning efficiency of the flange mating and thus increasing the overall flange mating efficiency. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the flange connection structure of this utility model;
[0016] Figure 2 This is an exploded view of the flange structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the sealing ring installation structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the positioning flange of this utility model;
[0019] Figure 5 This is a schematic diagram of the sealing and positioning groove structure of this utility model;
[0020] Figure 6 This is an exploded view of the side clamp connection structure of this utility model.
[0021] In the diagram: 1. Positioning flange; 2. Butt flange; 3. Locking screw; 4. Sealing ring groove; 5. Sealing positioning groove; 6. Snap-fit protruding ring; 7. Sealing ring; 8. Butt block; 9. Positioning groove; 10. Connecting pipe; 11. Side clamp; 12. Butt clamp; 13. Anti-slip pad; 14. Assembly block; 15. Assembly base; 16. Insert strip; 17. Slot; 18. Bolt. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-6 The present invention provides the following technical solution: a flange with a sealing and positioning structure, including a positioning flange 1 and a mating flange 2 installed on the bottom surface of the positioning flange 1, wherein locking screws 3 are connected through the surfaces of the positioning flange 1 and the mating flange 2.
[0024] Both the positioning flange 1 and the mating flange 2 have sealing ring grooves 4 on their mating surfaces. The positioning flange 1 has a sealing positioning groove 5 on its mating surface. A snap-fit protruding ring 6 is connected to the inner wall of the sealing ring groove 4. A sealing ring 7 is connected to the inner wall of the sealing positioning groove 5. A mating block 8 is connected to the mating surface of the mating flange 2. The positioning flange 1 has a positioning groove 9 on its mating surface.
[0025] Preferably, the mounting ring 6 and the sealing ring 7 are an integral structure, and the cross-section of the mounting ring 6 and the sealing ring 7 is T-shaped.
[0026] In practical use, the use of sealing ring 7 improves the sealing performance after flange connection, prevents loosening and falling off, and extends the service life of sealing ring 7.
[0027] Preferably, the mounting convex ring 6 and the sealing ring groove 4 form an interlocking structure, and the outermost side of the sealing ring 7 protrudes from the mating surface of the positioning flange 1.
[0028] In practical use, the sealing ring 7 is easily and stably installed by fitting the snap-fit protruding ring 6 into the sealing ring groove 4.
[0029] Preferably, four docking blocks 8 are provided, and the four docking blocks 8 are distributed at equal intervals around the center of the docking surface of the docking flange 2.
[0030] In practical use, by fitting the docking block 8 into the positioning groove 9 on the bottom surface of the positioning flange 1, the efficiency of docking between the positioning flange 1 and the docking flange 2 is improved.
[0031] Preferably, the top of the positioning flange 1 is connected to a connecting pipe 10, the outer side wall of the connecting pipe 10 is connected to a side clamp 11, one side of the side clamp 11 is connected to a butt clamp 12, and the inner sides of both the side clamp 11 and the butt clamp 12 are equipped with anti-slip pads 13.
[0032] In practical use, the use of side clamps 11 and butt clamps 12 facilitates the connection between flanges and pipes, while the use of anti-slip pads 13 enhances the stability between the flange and the pipe.
[0033] Preferably, both ends of the side clamp 11 are connected to the assembly block 14, both ends of the butt clamp 12 near the assembly block 14 are connected to the assembly seat 15, the side of the assembly block 14 near the assembly seat 15 is connected to the insert 16, the side of the assembly seat 15 is provided with the slot 17, and the surface of the assembly block 14 is connected to the bolt 18 through, the bolt 18 passes through the assembly block 14 and is threadedly connected to the assembly seat 15.
[0034] In practical use, by docking the assembly block 14 with the assembly base 15, it is convenient to drive the insert 16 on one side of the assembly block 14 to dock with the slot 17. Then, the bolt 18 is threaded through the assembly block 14 and the assembly base 15, which improves the stability of the side clamp 11 and the docking clamp 12 assembly.
[0035] The working principle of this utility model is as follows: First, the snap-fit protruding ring 6 on one side of the sealing ring 7 is fitted into the inner wall of the sealing ring groove 4 on the flange mating surface. Then, the sealing ring 7 is driven into the sealing positioning groove 5 on the flange mating surface. Because the sealing ring 7 protrudes from the flange mating surface, when the positioning flange 1 and the mating flange 2 are mated, the sealing ring 7 is squeezed and deformed, filling the gap generated on the flange mating surface, thereby improving the sealing performance of the flange. In addition, the structure formed by the snap-fit protruding ring 6 and the sealing ring 7 improves the stability of the sealing ring 7. Furthermore, when the positioning flange 1 and the mating flange 2 are mated... This process involves engaging the mating block 8 on the surface of the mating flange 2 with the positioning groove 9 on the bottom surface of the positioning flange 1, thereby improving the positioning efficiency and overall flange docking efficiency. Additionally, by fitting the connecting pipe 10 onto the connecting end of the positioning flange 1, and then engaging the side clamp 11 and the mating clamp 12 on the surface of the connecting pipe 10, the insertion strip 16 on one side of the assembly block 14 and the slot 17 on one side of the assembly seat 15 are slidably engaged. Finally, the bolt 18 is threaded through the assembly block 14 and connected to the assembly seat 15, facilitating the stable installation of the connecting pipe 10 and further improving the flange connection efficiency.
[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A flange with a sealing and positioning structure, comprising a positioning flange (1) and a mating flange (2) mounted on the bottom surface of the positioning flange (1), characterized in that: Locking screws (3) are connected through the surfaces of both the positioning flange (1) and the docking flange (2). The mating surfaces of the positioning flange (1) and the docking flange (2) are provided with sealing ring grooves (4), the mating surface of the positioning flange (1) is provided with sealing positioning grooves (5), the inner wall of the sealing ring groove (4) is connected with a snap-fit protrusion ring (6), the inner wall of the sealing positioning groove (5) is connected with a sealing ring (7), the mating surface of the docking flange (2) is connected with a docking block (8), and the mating surface of the positioning flange (1) is provided with a positioning groove (9).
2. The flange with a sealing and positioning structure according to claim 1, characterized in that: The mounting ring (6) and the sealing ring (7) are an integral structure, and the cross-section of the mounting ring (6) and the sealing ring (7) is T-shaped.
3. The flange with a sealing and positioning structure according to claim 1, characterized in that: The mounting protrusion (6) and the sealing ring groove (4) form an interlocking structure, and the outermost side of the sealing ring (7) protrudes from the mating surface of the positioning flange (1).
4. The flange with a sealing and positioning structure according to claim 1, characterized in that: There are four docking blocks (8), and the four docking blocks (8) are distributed at equal intervals around the center of the docking surface of the docking flange (2).
5. The flange with a sealing and positioning structure according to claim 1, characterized in that: The top of the positioning flange (1) is connected to a connecting pipe (10), the outer side wall of the connecting pipe (10) is connected to a side clamp (11), one side of the side clamp (11) is connected to a docking clamp (12), and the inner sides of the side clamp (11) and the docking clamp (12) are both equipped with anti-slip pads (13).
6. The flange with a sealing and positioning structure according to claim 5, characterized in that: Both ends of the side clamp (11) are connected to assembly blocks (14). Both ends of the docking clamp (12) near the assembly block (14) are connected to assembly seats (15). The side of the assembly block (14) near the assembly seat (15) is connected to a strip (16). A slot (17) is provided on one side of the assembly seat (15). A bolt (18) is connected through the surface of the assembly block (14). The bolt (18) passes through the assembly block (14) and is threaded to the assembly seat (15).