Leakage-proof flange of pipeline
By installing a sealing ring and annular plate structure between the flanges, the problem of flange gap leakage is solved, achieving a highly efficient sealing effect and preventing media leakage from polluting the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-20
AI Technical Summary
The existing flange connection has gaps, which can easily lead to media leakage and environmental pollution.
A leak-proof flange is designed by setting a sealing ring and annular plate on the first flange and the second flange. The annular plate drives the sealing element to insert into the groove frame, and the sealing element contacts the inner wall of the groove frame to achieve sealing of the flange gap.
It effectively prevents media from leaking through the flange gap, improves leak prevention, and prevents environmental pollution.
Smart Images
Figure CN224017927U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flange technical field especially relates to a pipeline's leakproof flange. BACKGROUND
[0002] Flange is also called flange flange plate or lug, is the interconnection between the shaft and the shaft part, at present, flange is used in pipeline connection frequently, welding flange on pipeline port and then carrying out butt joint connection, the flange on pipeline is connected and fixed through bolt fixing piece, after two flanges contact, there is a gap between flanges, when the medium in pipeline passes through flange, since the leakproof effect of flange is poor, the medium is easy to leak from the gap when the medium enters the gap between flanges, thereby polluting the environment. UTILITY MODEL CONTENT
[0003] The utility model discloses a pipeline's leakproof flange, which solves the problem that the medium is easy to leak from the gap when the medium enters the gap between flanges, thereby polluting the environment.
[0004] In order to achieve the above object, the utility model adopts the following technical scheme:
[0005] Design a kind of pipeline's leakproof flange, including first flange and second flange, the first flange side is equipped with first recess, first recess is connected with first sealing ring, the outer ring wall of first flange is connected with ring plate, the outer ring wall of second flange is connected with recess frame, ring plate inserts recess frame, the side of ring plate is connected with sealing element, and sealing element contacts recess frame.
[0006] Preferably, the second flange side is equipped with second recess, the second recess is connected with second sealing ring, and the second sealing ring contacts the first sealing ring.
[0007] Preferably, the axis of the first sealing ring and the second sealing ring is on the same straight line, and the radius of the first sealing ring and the second sealing ring is the same.
[0008] Preferably, the first flange is fixedly connected with a limiting ring, the second flange is provided with a positioning groove, and the limiting ring cooperates with the positioning groove.
[0009] Preferably, the sealing element includes a connecting leg, one end of the connecting leg is connected to the ring plate, and the other end of the connecting leg is fixedly connected with a sealing pad, and the sealing pad contacts the recess frame.
[0010] Preferably, the connecting leg and the sealing pad are an integral structure.
[0011] Preferably, the sealing pad is provided with a plurality of cavities.
[0012] Preferably, a concave surface is formed on the outer wall of the ring plate, a gap is formed between the concave surface and the inner wall of the groove frame, a third groove is fixedly connected to the outer wall of the ring plate, and a third sealing ring is connected to the third groove and in contact with the inner wall of the groove frame.
[0013] Preferably, the third sealing ring is a rubber sealing ring.
[0014] The pipe leak-proof flange has the advantages that:
[0015] After the first flange and the second flange are in contact, the ring plate drives the sealing element to be inserted into the groove frame, the sealing element is in contact with the inner wall of the groove frame, the ring plate is located outside the contact position of the first flange and the second flange, and the gap between the first flange and the second flange is sealed through cooperation of the ring plate, the groove frame and the sealing element, so that the medium in the pipe cannot fall from the gap and the environment is not polluted, and the leak-proof effect of the flange is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The pipe leak-proof flange has the advantages that: Figure 1
[0017] Figure 2 The pipe leak-proof flange has the advantages that: Figure 2
[0018] Figure 3 The pipe leak-proof flange has the advantages that:
[0019] Figure 4 The pipe leak-proof flange has the advantages that: Figure 3 The pipe leak-proof flange has the advantages that:
[0020] In the figure: 1, first flange; 2, second flange; 3, first groove; 4, first sealing ring; 5, second groove; 6, second sealing ring; 7, limiting ring; 8, positioning groove; 9, ring plate; 10, groove frame; 11, sealing element; 12, concave surface; 13, third groove; 14, third sealing ring; 111, connecting foot; 112, sealing gasket; 113, cavity. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.
[0022] Embodiment 1: refer to Figures 1-3 The utility model provides a leakproof flange of pipeline, including first flange 1 and second flange 2, the first flange 1 one side is seted up with first recess 3, is connected with first sealing ring 4 on first recess 3, second flange 2 one side is seted up with second recess 5, is connected with second sealing ring 6 on second recess 5, and second sealing ring 6 is in contact with first sealing ring 4, and the axis of first sealing ring 4 is in the same straight line with the axis of second sealing ring 6, and the radius of first sealing ring 4 is same with the radius of second sealing ring 6, and the fixed connection of first flange 1 is connected with limit ring 7, and the fixed connection of second flange 2 is seted up with positioning groove 8, and limit ring 7 is cooperated with positioning groove 8, and the outer ring wall of first flange 1 is connected with ring plate 9, and the outer ring wall of second flange 2 is connected with recess frame 10, and ring plate 9 inserts recess frame 10, and one side of ring plate 9 is connected with sealing element 11, and sealing element 11 is in contact with recess frame 10.
[0023] Working process:
[0024] The first flange 1 is installed to different pipeline with the second flange 2, and the first flange 1 is inserted into the positioning groove 8 through the limit ring 7, so that the first flange 1 is aligned with the second flange 2 under the cooperation of the limit ring 7 and the positioning groove 8, and after the first flange 1 and the second flange 2 are in contact, the second sealing ring 6 is in extrusion contact with the first sealing ring 4, and the gap between the first flange 1 and the second flange 2 is sealed after the cooperation of the second sealing ring 6 and the first sealing ring 4.
[0025] Meanwhile, after the first flange 1 and the second flange 2 are in contact, the ring plate 9 drives the sealing element 11 to be inserted into the recess frame 10, and the sealing element 11 is in contact with the inner wall of the recess frame 10, and the ring plate 9 is located outside the contact position of the first flange 1 and the second flange 2, and the gap between the first flange 1 and the second flange 2 is sealed under the cooperation of the ring plate 9, the recess frame 10 and the sealing element 11, so that the medium in the pipeline will not fall from the gap and pollute the environment, and the leakproof effect of the flange is improved.
[0026] In the sealing process of the sealing element 11, the sealing effect of the sealing element 11 on the inner wall of the recess frame 10 is poor, and the sealing element 11 is connected to the ring plate 9 through the connecting leg 111, and the other end of the connecting leg 111 is fixedly connected with the sealing pad 112, and the sealing pad 112 is in contact with the recess frame 10. Figure 4 As another preferred embodiment of the utility model, the difference from the embodiment 1 is that the sealing element 11 comprises a connecting leg 111, one end of the connecting leg 111 is connected to the ring plate 9, and the other end of the connecting leg 111 is fixedly connected with a sealing pad 112, the sealing pad 112 is in contact with the recess frame 10, the connecting leg 111 and the sealing pad 112 are an integral structure, a plurality of cavities 113 are formed in the sealing pad 112, the ring plate 9 drives the connecting leg 111 to move, the connecting leg 111 drives the sealing pad 112 to move, the sealing pad 112 is in extrusion contact with the inner wall of the recess frame 10, the sealing pad 112 is extruded after being pressed, the cavity 113 is extruded after being pressed, and the sealing pad 112 is deformed, so that the sealing pad 112 is better attached to the inner wall of the recess frame 10, and the sealing effect is improved.
[0027] In the embodiment 3, when the ring plate 9 is inserted into the groove frame 10, the inner wall of the groove frame 10 rubs against the ring plate 9, which is inconvenient for the insertion of the ring plate 9 into the groove frame 10. Figure 4 As another preferred embodiment of the utility model, the difference from the embodiment 1 is that the outer wall of the ring plate 9 is provided with a concave surface 12, the concave surface 12 is provided with a gap with the inner wall of the groove frame 10, the outer wall of the ring plate 9 is fixedly connected with a third groove 13, the third groove 13 is connected with a third sealing ring 14, the third sealing ring 14 is in contact with the inner wall of the groove frame 10, the third sealing ring 14 is a rubber sealing ring, the concave surface 12 reduces the contact area between the outer wall of the ring plate 9 and the groove frame 10, which is convenient for the insertion of the ring plate 9 into the groove frame 10, the third sealing ring 14 is in contact with the inner wall of the groove frame 10, which avoids the entry of foreign matters into the gap.
[0028] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A leak-proof flange for a pipeline, comprising a first flange (1) and a second flange (2), wherein a first groove (3) is provided on one side of the first flange (1), characterized in that, in: A first sealing ring (4) is connected to the first groove (3), a ring plate (9) is connected to the outer ring wall of the first flange (1), a groove frame (10) is connected to the outer ring wall of the second flange (2), the ring plate (9) is inserted into the groove frame (10), a sealing element (11) is connected to one side of the ring plate (9), and the sealing element (11) is in contact with the groove frame (10).
2. The leak-proof flange for pipelines according to claim 1, characterized in that, A second groove (5) is provided on one side of the second flange (2), and a second sealing ring (6) is connected to the second groove (5). The second sealing ring (6) is in contact with the first sealing ring (4).
3. The leak-proof flange for pipelines according to claim 2, characterized in that, The axis of the first sealing ring (4) and the axis of the second sealing ring (6) are on the same straight line, and the radius of the first sealing ring (4) is the same as the radius of the second sealing ring (6).
4. The leak-proof flange for pipelines according to claim 1, characterized in that, A limiting ring (7) is fixedly connected to the first flange (1), and a positioning groove (8) is provided on the second flange (2). The limiting ring (7) cooperates with the positioning groove (8).
5. The leak-proof flange for pipelines according to claim 1, characterized in that, The sealing element (11) includes a connecting foot (111), one end of which is connected to the ring plate (9), and the other end of which is fixedly connected to a sealing gasket (112), which is in contact with the groove frame (10).
6. The leak-proof flange for pipelines according to claim 5, characterized in that, The connecting foot (111) and the sealing gasket (112) are an integral structure.
7. The leak-proof flange for pipelines according to claim 6, characterized in that, The sealing gasket (112) has several chambers (113) inside.
8. The leak-proof flange for pipelines according to claim 1, characterized in that, A concave surface (12) is provided on the outer wall of the ring plate (9). A gap is provided between the concave surface (12) and the inner wall of the groove frame (10). A third groove (13) is fixedly connected to the outer wall of the ring plate (9). A third sealing ring (14) is connected to the third groove (13). The third sealing ring (14) is in contact with the inner wall of the groove frame (10).
9. The leak-proof flange for pipelines according to claim 8, characterized in that, The third sealing ring (14) is a rubber sealing ring.