A flange with quick sealing function
By designing inclined plates and wedge grooves on the flange, combined with frame extrusion and locking teeth fixation, rapid sealing of the flange is achieved, solving the problem of cumbersome operation of traditional flanges, and making it suitable for emergency repairs and other scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANHU YIMING HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional flanges are cumbersome to connect and disassemble, making them unsuitable for scenarios requiring high sealing speeds, such as emergency repairs.
The flange features a design with inclined plates and wedge grooves. The flange is quickly tightened by the frame compression, and a quick seal is achieved by the deformation of the sealing ring. The flange position is fixed by the cooperation of the locking teeth and wedge grooves.
It achieves rapid sealing of flanges, making it suitable for emergency repairs and other scenarios with high requirements for sealing speed. It simplifies the operation process and improves ease of use.
Smart Images

Figure CN224579932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flange technology, specifically to a flange with a fast sealing function. Background Technology
[0002] Flanges are parts that connect shafts to each other. They are used for connecting pipe ends and are also used on equipment inlets and outlets to connect two pieces of equipment. They are widely used in pressure systems such as pipelines, valves, and equipment.
[0003] Traditional flanges typically use bolts for direct connection, where multiple bolts are tightened evenly to compress the gasket between the two flanges, thus achieving a seal. This connection method requires tightening or loosening a large number of bolts one by one during installation and disassembly, which is cumbersome and time-consuming. In some scenarios where high sealing speed is required, such as emergency repairs, these traditional flanges are difficult to meet the needs. Therefore, a flange with a fast sealing function is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a flange with a fast sealing function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a flange with a rapid sealing function, comprising a flange plate one, a flange plate two, and two frames. Flange holes are evenly distributed on the outer walls of the flange plate one and the flange plate two. A sealing groove one and a sealing groove two are respectively formed on opposite sides of the flange plate one and the flange plate two. A sealing ring one is bonded to the inner wall of the sealing groove one on the flange plate one, and a sealing ring two is bonded to the inner wall of the sealing groove two on the flange plate one. Two inclined plates are symmetrically fixed to the outer walls of the flange plate one and the flange plate two. Wedge-tooth grooves are formed on the outer walls of the inclined plates. Two inclined grooves are formed on the inner walls of the frames, and locking teeth are fixedly connected to the inner walls of the inclined grooves.
[0006] As a further preferred embodiment of this technical solution: the frame includes half-frame one and half-frame two, the rear surface of half-frame one is symmetrically fixedly connected with two insert plates, and the front surface of half-frame two is symmetrically provided with two slots.
[0007] As a further preferred embodiment of this technical solution: the upper surface of the insert plate is uniformly provided with pin holes, and the upper surface of the second half-frame is threaded with a pin rod.
[0008] As a further preferred embodiment of this technical solution, a knob is fixedly connected to the top end of the pin.
[0009] As a further preferred embodiment of this technical solution, the sealing ring is made of nitrile rubber.
[0010] As a further preferred embodiment of this technical solution, the sealing ring two is made of fluororubber.
[0011] As a further preferred embodiment of this technical solution, two positioning strips are symmetrically fixedly connected to the rear surface of the flange.
[0012] As a further preferred embodiment of this technical solution, two positioning grooves are symmetrically formed on the front surface of the second flange.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, when connecting flanges, flange one and flange two are simply joined together, with the inclined plates facing each other. The frame is then placed on the two opposing inclined plates, and the frame is pressed from both sides towards the middle. The two frames slide closer to each other on the outer walls of the inclined plates. During the movement of the frames, the locking teeth slide across the surface of the wedge grooves, pressing the inclined plates and bringing flange one and flange two closer together until the frames can no longer move. The locking teeth then engage the wedge grooves. As flange one and flange two approach and become closer together, sealing ring one and sealing ring two are deformed by the compression, filling the gap between flange one and flange two. This achieves a double seal on the flange, enabling rapid sealing and allowing sufficient time for subsequent bolt fixing. It is suitable for emergency repairs and other scenarios with high sealing speed requirements, meeting usage needs and bringing convenience to flange use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 3 In this utility model Figure 2 Enlarged view of the structure of area A;
[0018] Figure 4 This is a cross-sectional view of flange one in this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the flange and the positioning strip in this utility model;
[0020] Figure 6 This is a schematic diagram of the structure of flange two and positioning groove in this utility model;
[0021] Figure 7 This is a schematic diagram of the structure of the half-frame and the insert plate in this utility model;
[0022] Figure 8This is a schematic diagram of the structure of the second half-frame and the slot in this utility model.
[0023] In the picture:
[0024] 1. Flange 1; 2. Flange 2; 3. Flange hole; 4. Sealing groove 1; 5. Sealing groove 2; 6. Sealing ring 1; 7. Sealing ring 2; 8. Inclined plate; 9. Wedge tooth groove; 10. Frame; 101. Half frame 1; 102. Half frame 2; 103. Insert plate; 104. Slot; 105. Pin hole; 106. Pin rod; 107. Knob; 11. Inclined groove; 12. Clamping tooth; 13. Positioning strip; 14. Positioning groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. 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.
[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "equipment" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0027] Please see Figure 1-8This utility model provides a technical solution: a flange with a quick sealing function, including a flange 1, a flange 2, and two frames 10. Flange holes 3 are evenly distributed on the outer walls of flange 1 and flange 2. Sealing grooves 1 4 and 2 5 are provided on opposite sides of flange 1 and flange 2. A sealing ring 6 is bonded to the inner wall of sealing groove 4 on flange 1, and a sealing ring 7 is bonded to the inner wall of sealing groove 5 on flange 1. Two inclined plates 8 are symmetrically fixed on the outer walls of flange 1 and flange 2. Wedge grooves 9 are provided on the outer walls of inclined plates 8. Two inclined grooves 11 are provided on the inner walls of the frames 10, and locking teeth 12 are fixedly connected to the inner walls of the inclined grooves 11. When connecting the flanges, flange 1 and flange 2 are simply joined together, so that the inclined plates 8 are positioned relative to each other. The frame 10 is placed on two opposing inclined plates 8, and the frame 10 is pressed from both sides towards the middle. The two frames 10 will slide closer to each other on the outer walls of the inclined plates 8. During the movement of the frame 10, the retaining teeth 12 slide across the surface of the wedge groove 9. During this process, the retaining teeth 12 will press the inclined plates 8, causing flange 1 and flange 2 to come closer and stick together until the frame 10 can no longer move. The retaining teeth 12 will lock the wedge groove 9. During the process of flange 1 and flange 2 coming closer and sticking together, sealing ring 6 and sealing ring 7 are deformed by compression, filling the gap between flange 1 and flange 2. This completes the double-layer sealing of the flange, achieving rapid sealing and allowing sufficient time for subsequent bolt fixing. It is suitable for emergency repairs and other scenarios with high requirements for sealing speed, which helps to meet the usage needs and brings convenience to the use of flanges.
[0028] In this embodiment, specifically: the frame 10 includes half frame one 101 and half frame two 102. The rear surface of half frame one 101 is symmetrically fixedly connected with two insert plates 103, and the front surface of half frame two 102 is symmetrically provided with two slots 104; so as to facilitate the insertion and connection of half frame one 101 and half frame two 102 into a whole.
[0029] In this embodiment, specifically: pin holes 105 are evenly provided on the upper surface of the insert plate 103, and a pin rod 106 is threadedly connected to the upper surface of the second half-frame 102; tightening the pin rod 106 to insert it into the pin hole 105 can lock the connection between the first half-frame 101 and the second half-frame 102, so that the two will not slide against each other.
[0030] In this embodiment, specifically: a knob 107 is fixedly connected to the top of the pin 106; when the flange needs to be removed, loosen the pin 106 to make it leave the pin hole 105, which can separate half frame one 101 and half frame two 102, and then unscrew the bolts in the flange hole 3 to separate flange one 1 and flange two 2.
[0031] In this embodiment, specifically: the sealing ring 6 is made of nitrile rubber; the wear resistance of nitrile rubber can improve the durability of the flange in terms of sealing.
[0032] In this embodiment, specifically: the material of sealing ring 2 7 is fluororubber; with the help of the high temperature resistance and corrosion resistance of fluororubber, the flange can be used in harsher environments.
[0033] In this embodiment, specifically: two positioning strips 13 are symmetrically fixedly connected to the rear surface of flange 1; this facilitates the positioning strips 13 to move synchronously with flange 1.
[0034] In this embodiment, specifically: two positioning grooves 14 are symmetrically opened on the front surface of flange 2; when connecting flange 1 and flange 2, the positioning strip 13 is inserted into the positioning groove 14, which can complete the quick and accurate docking between the two flanges.
[0035] The working principle of this utility model is as follows: When connecting the flanges, flange 1 and flange 2 are simply joined together, so that the inclined plates 8 are positioned opposite each other. The frame 10 is then placed on the two opposing inclined plates 8. The frame 10 is pressed from both sides towards the middle, causing the two frames 10 to slide closer to each other on the outer walls of the inclined plates 8. During the movement of the frame 10, the locking teeth 12 slide across the surface of the wedge groove 9. In this process, the locking teeth 12 press against the inclined plates 8, causing flange 1 and flange 2 to come closer and stick together until the frame 10 can no longer move and the locking teeth 12 lock into the wedge groove 9. As flange 1 and flange 2 approach and tighten together, sealing rings 6 and 7 are compressed and deformed, filling the gap between flange 1 and flange 2, thus completing a double seal and achieving rapid sealing. This allows sufficient time for subsequent bolt fixing and is suitable for emergency repairs and other scenarios with high sealing speed requirements. When the flange needs to be removed, loosen pin 106 to remove it from pin hole 105, which can separate half frame 101 and half frame 102. Then, unscrew the bolts in flange hole 3 to separate flange 1 and flange 2.
[0036] 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 flange with a fast sealing function, characterized in that: The assembly includes a flange 1 (1), a flange 2 (2), and two frames (10). Flange holes (3) are evenly provided on the outer walls of the flange 1 (1) and the flange 2 (2). Sealing groove 1 (4) and sealing groove 2 (5) are provided on opposite sides of the flange 1 (1) and the flange 2 (2). A sealing ring 1 (6) is bonded to the inner wall of the sealing groove 1 (4) on the flange 1 (1), and a sealing ring 2 (7) is bonded to the inner wall of the sealing groove 2 (5) on the flange 1 (1). Two inclined plates (8) are symmetrically fixed on the outer walls of the flange 1 (1) and the flange 2 (2). Wedge tooth grooves (9) are provided on the outer walls of the inclined plates (8). Two inclined grooves (11) are provided on the inner walls of the frames (10), and locking teeth (12) are fixedly connected to the inner walls of the inclined grooves (11).
2. The flange with quick sealing function according to claim 1, characterized in that: The frame (10) includes a first half frame (101) and a second half frame (102). The rear surface of the first half frame (101) is symmetrically fixed with two insert plates (103), and the front surface of the second half frame (102) is symmetrically provided with two slots (104).
3. The flange with rapid sealing function according to claim 2, characterized in that: The upper surface of the insert plate (103) is uniformly provided with pin holes (105), and the upper surface of the second half frame (102) is threaded with a pin rod (106).
4. The flange with quick sealing function according to claim 3, characterized in that: A knob (107) is fixedly connected to the top of the pin (106).
5. The flange with quick sealing function according to claim 4, characterized in that: The sealing ring (6) is made of nitrile rubber.
6. The flange with quick sealing function according to claim 5, characterized in that: The sealing ring 2 (7) is made of fluororubber.
7. The flange with quick sealing function according to claim 6, characterized in that: Two positioning strips (13) are symmetrically fixedly connected to the rear surface of the flange (1).
8. The flange with quick sealing function according to claim 7, characterized in that: The front surface of the flange 2 (2) has two symmetrical positioning grooves (14).