Flange assembly for bottom blowdown

Abstract

This utility model discloses a bottom-drainage flange kit, relating to the technical field of fluid transport pipeline accessories. It includes a flange body, a drain pipe, an arc-shaped clamping plate, a first sealing ring, and a second sealing ring. The flange body has a sealing groove 1 at its upper end, in which the first sealing ring is fitted. The flange body also has a sealing groove 2 at its lower end, in which the second sealing ring is fitted. A central hole penetrating vertically is located in the center of the flange body, into which the drain pipe is inserted. Two sliding grooves are located at the lower end of the flange body, each containing a slider. An arc-shaped clamping plate is fixedly connected to the lower end of each slider. A sealing groove is located on one side of each arc-shaped clamping plate. The sealing grooves 1 and 2, in conjunction with the first and second sealing rings respectively, form a double-sealing structure. Combined with the limiting block and the limiting groove, and the sealing groove of the arc-shaped clamping plate, this multi-dimensional sealing ensures the airtightness between the flange and the drain pipe / installation surface, effectively preventing leakage.

Description

Technical Field

[0001] This utility model relates to the technical field of fluid transport pipeline accessories, specifically a flange kit for bottom drainage. Background Technology

[0002] In the field of fluid transport pipeline fittings technology, flange kits, as key components connecting pipelines and equipment drain outlets, directly affect the operating efficiency of the drainage system through their sealing performance and installation stability. Especially in bottom drainage scenarios of equipment such as water tanks and reactors, flange kits need to withstand multiple tests such as sewage impact, pipeline vibration, and media corrosion over a long period of time, thus placing stringent requirements on their sealing performance and structural adaptability.

[0003] In existing technologies, traditional bottom-drain flanges mostly employ a single sealing ring secured with bolts. However, this type of structure has significant limitations in practical applications: firstly, the single-seal structure is prone to aging and displacement of the sealing ring due to long-term use, or uneven bolt tightening during installation can lead to poor sealing surface contact, resulting in sewage leakage. This not only affects the normal operation of the equipment but may also cause corrosion of surrounding components due to leaked sewage, increasing maintenance costs. Secondly, some flange kits, during the docking process with the bottom drain port of the equipment, lack a restraining structure for the sealing ring. When the fluid pressure inside the pipeline fluctuates, the sealing ring is prone to shifting, further weakening the sealing effect. Therefore, those skilled in the art have provided a bottom-drain flange kit to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a flange kit for bottom drainage to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bottom-drainage flange kit includes a flange body, a drain pipe, an arc-shaped clamping plate, a first sealing ring, and a second sealing ring. The flange body has a first sealing groove at its upper end, in which the first sealing ring is fitted. The flange body also has a second sealing groove at its lower end, in which the second sealing ring is fitted. A central hole, penetrating vertically, is located in the center of the flange body, into which the drain pipe is inserted. Both the first and second sealing rings are fitted onto the outer wall of the drain pipe. The lower end of the flange body has two sliding grooves, each containing a slider. An arc-shaped clamping plate is fixedly connected to the lower end of each slider. A sealing groove is located on one side of each arc-shaped clamping plate, in which the second sealing ring is fitted.

[0007] As a further embodiment of this utility model: each of the sliding grooves is provided with a threaded rod, wherein the threaded rod is rotatably connected to the flange body, and the slider is threadedly connected to the threaded rod. A rotating disk is provided on the outer wall of one end of the threaded rod, wherein the rotating disk is fixedly connected to the threaded rod.

[0008] As a further improvement of this utility model: the first sealing ring is provided with several sets of through holes II, and the flange body is provided with several sets of through holes I, wherein the through holes I and the through holes II correspond one-to-one.

[0009] As a further improvement of this utility model: the flange body is provided with several sets of fixing screws, wherein the fixing screws pass through the through hole one and the through hole two, and the flange can be fixed to the drain outlet at the bottom of the water tank by the fixing screws.

[0010] As a further improvement of this utility model: several sets of limiting blocks are fixedly connected to the second sealing groove, and several sets of limiting grooves are opened at the upper end of the second sealing ring, wherein the limiting blocks are stuck in the limiting grooves to prevent the second sealing ring from moving.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. Multiple sealing synergy: A dual sealing structure is set up with sealing groove one and the first sealing ring, and sealing groove two and the second sealing ring, to build a sealing defense line from the upper and lower ends of the flange body; the first sealing ring is inserted into sealing groove one, fitting the outer wall of the sewage pipe and the upper end face of the flange; the second sealing ring is embedded in sealing groove two, and with the sealing groove of the arc-shaped clamping plate, it accurately seals the lower end of the sewage pipe and the gap between the flange and the mounting surface. At the same time, the limiting block is inserted into the limiting groove of the second sealing ring to limit the displacement of the sealing ring, ensuring continuous and effective sealing, preventing sewage leakage from multiple dimensions, and adapting to complex sewage discharge environments.

[0013] 2. Optimized sealing details: The second through hole of the first sealing ring is precisely aligned with the first through hole of the flange body. After the fixing screw passes through, it further compresses the sealing ring to enhance the fit of the sealing surface. When the arc-shaped clamping plate clamps the sewage pipe, the sealing groove wraps around the second sealing ring to form an annular sealing band, which improves the sealing reliability of the connection between the sewage pipe and the flange. Even under long-term sewage impact and pressure changes, the sealing performance remains stable.

[0014] 3. Quick pre-positioning: The drain pipe can be directly inserted into the center hole of the flange body to achieve preliminary spatial positioning; after the first and second sealing rings are fitted onto the drain pipe, they can be quickly snapped into the corresponding installation position by relying on the shape constraint of the sealing groove and the matching of the limiting block and the limiting groove, without complicated debugging, greatly shortening the pre-installation preparation time and reducing human operation errors.

[0015] 4. Simplified fixing process: The transmission design of the rotating disk, threaded rod, and slider transforms manual operation into mechanical clamping force. Workers only need to rotate the rotating disk to drive the arc-shaped clamping plate to move inward, automatically completing the clamping and fixing of the sewage pipe. This replaces the traditional complicated bolt tightening and fixture adjustment steps. The fixing screws are inserted through the through holes, and the flange and mounting surface can be fixed with simple operation using tools. No professional skills are required for the entire installation process, improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a flange assembly for bottom drainage.

[0017] Figure 2 This is a schematic diagram of the structure of the first sealing ring and sealing groove in a bottom-drainage flange assembly.

[0018] Figure 3 This is a schematic diagram of the structure of the second sealing ring and the second sealing groove in a bottom drain flange kit.

[0019] Figure 4 This is a schematic diagram of the threaded rod and slide in a flange assembly for bottom drainage.

[0020] Figure 5 This is a schematic diagram of the slider and arc-shaped clamping plate in a bottom-drainage flange kit.

[0021] In the diagram: 1. Flange body; 101. Through hole one; 102. Center hole; 2. Fixing screw; 3. Drain pipe; 4. Sealing groove one; 5. First sealing ring; 501. Through hole two; 6. Second sealing ring; 601. Limiting groove; 7. Sealing groove two; 701. Limiting block; 8. Rotating disk; 9. Threaded rod; 10. Slide groove; 11. Arc-shaped clamping plate; 12. Sealing slot; 13. Sliding block. Detailed Implementation

[0022] To facilitate understanding of the technical means, creative features, objectives, and effects of this utility model, the following detailed description of specific embodiments further illustrates this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Please see Figures 1-5In this embodiment of the utility model, a bottom-drainage flange kit includes a flange body 1, a drain pipe 3, an arc-shaped clamping plate 11, a first sealing ring 5, and a second sealing ring 6. The flange body 1 has a sealing groove 4 at its upper end, in which the first sealing ring 5 is fitted. The flange body 1 also has a sealing groove 7 at its lower end, in which the second sealing ring 6 is fitted. A central hole 102 is formed at the center of the flange body 1, through which the drain pipe 3 is inserted. Both the first sealing ring 5 and the second sealing ring 6 are fitted onto the outer wall of the drain pipe 3. The flange body 1 has two sliding grooves 10 at its lower end, each containing a slider 13. The lower end of each slider 13 is fixedly connected to an arc-shaped clamping plate 11. Each side of the arc-shaped clamping plate 11 has a sealing groove 12, in which the second sealing ring 6 is fitted. The sliding grooves 10 each contain a sealing groove 12. A threaded rod 9 is provided, which is rotatably connected to the flange body 1, and the slider 13 is threadedly connected to the threaded rod 9. A rotating disk 8 is provided on the outer wall of one end of the threaded rod 9, and the rotating disk 8 is fixedly connected to the threaded rod 9. Several sets of through holes 501 are provided on the first sealing ring 5, and several sets of through holes 101 are provided on the flange body 1, with each through hole 101 corresponding to the through hole 501. Several sets of fixing screws 2 are provided on the flange body 1, which pass through the through holes 101 and 501 and can fix the flange to the drain outlet at the bottom of the pool through the fixing screws 2. Several sets of limiting blocks 701 are fixedly connected to the sealing groove 7, and several sets of limiting grooves 601 are provided on the upper end of the second sealing ring 6, with the limiting blocks 701 locked in the limiting grooves 601 to prevent the second sealing ring 6 from moving.

[0024] The working principle of this utility model is as follows: During installation, firstly, the drain pipe 3 can be inserted into the central hole 102. Then, the first sealing ring 5 and the second sealing ring 6 can be fitted onto the outer wall of the drain pipe 3, with the first sealing ring 5 snapping into the sealing groove 4 and the second sealing ring 6 snapping into the sealing groove 7. The through hole 501 on the first sealing ring 5 is aligned with the through hole 101 on the flange body 1, and the limiting groove 601 on the second sealing ring 6 is aligned with the limiting block 701. Then, the rotating disc 8 is manually rotated to drive the threaded rod 9 into the... As the screw rotates, the threaded rod 9 drives the slider 13 to move towards the center, and the slider 13 drives the arc-shaped clamping plate 11 to move towards the center. In this way, the two arc-shaped clamping plates 11 on the left and right will clamp and fix the drain pipe 3 together. At the same time, the lower end of the second sealing ring 6 will be inserted into the sealing groove 12 of the arc-shaped clamping plate 11. Finally, the fixing screw 2 is passed through the through hole 101 and the through hole 501, and the flange body 1 is fixed to the drain outlet at the bottom of the pool by the fixing screw 2, so that the sewage can flow into the drain pipe 3 from the drain outlet and be discharged.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bottom-drainage flange kit, comprising a flange body (1), a drain pipe (3), an arc-shaped clamping plate (11), a first sealing ring (5), and a second sealing ring (6), characterized in that, The flange body (1) has a sealing groove 1 (4) at the upper end, and a first sealing ring (5) is installed in the sealing groove 1 (4). The flange body (1) has a sealing groove 2 (7) at the lower end, and a second sealing ring (6) is installed in the sealing groove 2 (7). The flange body (1) has a central hole (102) that runs through the upper and lower parts, and a drain pipe (3) is inserted in the central hole (102). The flange body (1) has two sliding grooves (10) at the lower end, and a slider (13) is installed in each of the sliding grooves (10). The lower end of each slider (13) is fixedly connected to an arc-shaped clamping plate (11), and a sealing groove (12) is opened on one side of each arc-shaped clamping plate (11).

2. The flange kit for bottom drainage according to claim 1, characterized in that, Each of the slide grooves (10) is provided with a threaded rod (9), wherein the threaded rod (9) is rotatably connected to the flange body (1), and the slider (13) is threadedly connected to the threaded rod (9).

3. A bottom-drainage flange kit according to claim 2, characterized in that, Each threaded rod (9) has a rotating disk (8) on its outer wall at one end, and the rotating disk (8) is fixedly connected to the threaded rod (9).

4. A bottom-drainage flange kit according to claim 1, characterized in that, The first sealing ring (5) has several sets of through holes (501), and the flange body (1) has several sets of through holes (101), wherein the through holes (101) correspond one-to-one with the through holes (501).

5. A bottom-drainage flange kit according to claim 1, characterized in that, The flange body (1) is provided with several sets of fixing screws (2), wherein the fixing screws (2) pass through the through hole one (101) and the through hole two (501).

6. A bottom drain flange assembly according to claim 1, characterized in that, Several sets of limiting blocks (701) are fixedly connected to the sealing groove 2 (7).

7. A bottom drain flange assembly according to claim 1, characterized in that, The upper end of the second sealing ring (6) is provided with several sets of limiting grooves (601), wherein the limiting block (701) is stuck in the limiting groove (601).

8. A bottom drain flange assembly according to claim 1, characterized in that, The first sealing ring (5) and the second sealing ring (6) are both fitted on the outer wall of the drain pipe (3), and the second sealing ring (6) is stuck in the sealing groove (12).

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