Sealing gasket structure for anti-drip pipe flanges

Abstract

This utility model relates to the field of sealing gasket technology and discloses a sealing gasket structure for a drip-proof pipe flange. It includes an outer ring, a gasket body fixedly connected to the middle of the inner wall of the outer ring, a flange slidably connected to the middle of the inner wall of the gasket body, multiple fixing plates fixedly connected to the top of the outer ring, a rotating shaft I fixedly connected to the top of the inner wall of each fixing plate, pressure plates rotatably connected to the front and rear ends of the outer wall of the rotating shaft I, a rotating shaft II rotatably connected to the inner wall of the pressure plate, a moving plate fixedly connected to the middle of the outer wall of the rotating shaft II, and positioning mechanisms fixedly connected to the front and rear sides of the inner wall of the gasket body for positioning. In this utility model, the flange is first inserted into the gasket body, and the moving plate is pulled downwards, causing the pressure plate to press the flange downwards, thereby strengthening the clamping force, preventing water from dripping from the gasket, reducing resource waste, and improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of sealing gasket technology, and in particular to the sealing gasket structure of anti-drip pipe flanges. Background Technology

[0002] As a core component in ensuring the safe operation of fluid systems in modern industry, gasket technology stems from the continuous improvement of industrial production requirements for continuity, safety, and environmental protection. With the rapid development of the petrochemical, energy, and aerospace industries, pressure vessels and pipeline systems are extending to extreme conditions such as high temperature, high pressure, high vacuum, and cryogenics. Traditional sealing materials and structures can no longer meet the needs of complex operating conditions. As a core application direction in the field of gasket technology, the gasket structure of pipeline flanges, through the integration of material innovation, structural optimization, and sealing mechanism research, has achieved efficient control of fluid leakage under complex operating conditions, becoming a key technology carrier for ensuring the safe and stable operation of industrial pipeline systems.

[0003] When preventing leakage of high-temperature, high-pressure, corrosive, flammable, or explosive media at pipe flange connections, a gasket structure is required to ensure a reliable seal at the connection. The gasket structure of a pipe flange involves placing an elastic and sealing gasket between the two flange connection surfaces. The bolt preload forces the gasket to undergo plastic deformation, filling the microscopic unevenness and gaps of the flange sealing surfaces to form a seal. This effectively prevents leakage of the media from the pipe through the flange connection, ensuring the safe and stable operation of the pipeline system. However, most existing gaskets are fixed with bolts, resulting in insufficient clamping force, allowing water to drip from the gasket, wasting resources, reducing safety, and decreasing practicality. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a sealing gasket structure for anti-drip pipe flanges, aiming to improve the problem of insufficient clamping force in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a sealing gasket structure for a drip-proof pipe flange, comprising an outer ring, a gasket body fixedly connected to the middle of the inner wall of the outer ring, a flange slidably connected to the middle of the inner wall of the gasket body, multiple fixing plates fixedly connected to the top of the outer ring, a rotating shaft one fixedly connected to the top of the inner wall of the fixing plates, pressure plates rotatably connected to the front and rear ends of the outer wall of the rotating shaft one, a rotating shaft two rotatably connected to the inner wall of the pressure plates, a moving plate fixedly connected to the middle of the outer wall of the rotating shaft two, a rotating shaft three rotatably connected to the bottom of the inner wall of the moving plate, an arc-shaped plate three fixedly connected to the outer wall of the rotating shaft three, a moving column fixedly connected to the bottom of the arc-shaped plate three, a moving disk fixedly connected to the bottom end of the moving column, a threaded column one threadedly connected to the right side of the inner wall of the moving disk, and positioning mechanisms fixedly connected to the front and rear sides of the inner wall of the gasket body, the positioning mechanisms being used for positioning.

[0006] As a further description of the above technical solution:

[0007] The positioning mechanism includes a fixing block, the outer wall of which is fixedly connected to the inner wall of the gasket body. An arc-shaped plate is fixedly connected to the right side of the fixing block. A fixing column is fixedly connected to the inner wall of the arc-shaped plate. A rotating block is rotatably connected to the middle of the outer wall of the fixing column. A spring column is fixedly connected to the right side of the rotating block. A rotating block is fixedly connected to the right end of the spring column. A fixing column is rotatably connected to the inner wall of the rotating block. An arc-shaped plate is fixedly connected to the outer wall of the fixing column. A connecting plate is fixedly connected to the right side of the arc-shaped plate. A sliding plate is fixedly connected to the right side of the connecting plate. Multiple openings are provided at the bottom of the outer wall of the flange.

[0008] As a further description of the above technical solution:

[0009] A label is fixedly connected to the front side of the outer ring, and multiple threaded holes are provided on the inner wall of the flange near the edge.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the second threaded hole is threaded with a second threaded post, and the outer wall of the second threaded post is threaded with a nut.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the gasket body has multiple threaded holes near the edge, and a rotating sleeve is fixedly connected to the bottom end of the threaded post.

[0014] As a further description of the above technical solution:

[0015] A handle is fixedly connected to the bottom of the mobile disk, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0016] As a further description of the above technical solution:

[0017] The bottom of the pressure plate is slidably connected to the top of the outer wall of the flange, and the outer wall of the arc plate is slidably connected to the top of the inner wall of the outer ring.

[0018] As a further description of the above technical solution:

[0019] The front side of the inner wall of the outer ring is slidably connected to the outer wall of the movable column, and the bottom of the inner wall of the outer ring is threadedly connected to the top of the outer wall of the threaded column.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the flange is first inserted into the gasket body, and the moving plate is pulled down to drive the rotating shaft two to move down, thereby driving the pressure plate to move down. The pressure plate rotates around the rotating shaft one, so that the pressure plate presses down on the flange, thereby achieving the beneficial effect of strengthening the clamping force, preventing water from dripping out of the gasket, reducing resource waste, ensuring safety, and improving practicality.

[0022] 2. In this utility model, the flange is first attached to the gasket body, and then moved. When the sliding plate slides to the top, due to the action of the spring column, the arc plate drives the connecting plate to move, and the connecting plate drives the sliding plate to move, so that the sliding plate is inserted into the middle, thereby achieving the beneficial effect of quickly positioning the sealing gasket, preventing misalignment and improving practicality. Attached Figure Description

[0023] Figure 1 This is a perspective view of the outer ring front side of the sealing gasket structure of the anti-drip pipe flange proposed in this utility model.

[0024] Figure 2 This is a partial structural diagram of the movable column of the sealing gasket structure for the anti-drip pipe flange proposed in this utility model;

[0025] Figure 3 This is a partial structural disassembly diagram of the gasket body of the anti-drip pipe flange sealing gasket structure proposed in this utility model;

[0026] Figure 4 This is a partial structural diagram of the fixing block of the sealing gasket structure for the anti-drip pipe flange proposed in this utility model.

[0027] Figure 5 This is a partial structural diagram of the threaded hole of the sealing gasket structure of the anti-drip pipe flange proposed in this utility model;

[0028] Figure 6This is a partial structural diagram of the flange of the anti-drip pipe flange proposed in this utility model, showing the sealing gasket structure.

[0029] Legend:

[0030] 1. Outer ring; 2. Positioning mechanism; 201. Fixing block; 202. Arc plate one; 203. Fixing column one; 204. Rotating block one; 205. Spring column; 206. Rotating block two; 207. Fixing column two; 208. Arc plate two; 209. Connecting plate; 210. Sliding plate; 3. Gasket body; 4. Fixing plate; 5. Rotating shaft one; 6. Pressure plate; 7. Rotating shaft two; 8. Moving plate; 9. Rotating shaft three; 10. Arc plate three; 11. Moving column; 12. Moving disc; 13. Threaded column one; 14. Label; 15. Rotating sleeve; 16. Handle; 17. Anti-slip sleeve; 18. Threaded column two; 19. Nut; 20. Threaded hole one; 21. Threaded hole two; 22. Flange. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides a sealing gasket structure for a drip-proof pipe flange, comprising an outer ring 1, a gasket body 3 fixedly connected to the middle of the inner wall of the outer ring 1, a flange 22 slidably connected to the middle of the inner wall of the gasket body 3, multiple fixing plates 4 fixedly connected to the top of the outer ring 1, a rotating shaft 5 fixedly connected to the top of the inner wall of the fixing plate 4, pressure plates 6 rotatably connected to the front and rear ends of the outer wall of the rotating shaft 5, a rotating shaft 7 rotatably connected to the inner wall of the pressure plate 6, a moving plate 8 fixedly connected to the middle of the outer wall of the rotating shaft 7, a rotating shaft 9 rotatably connected to the bottom of the inner wall of the moving plate 8, an arc-shaped plate 10 fixedly connected to the outer wall of the rotating shaft 9, a moving column 11 fixedly connected to the bottom of the arc-shaped plate 10, a moving disk 12 fixedly connected to the bottom end of the moving column 11, a threaded column 13 threadedly connected to the right side of the inner wall of the moving disk 12, and a positioning mechanism 2 fixedly connected to the front and rear sides of the inner wall of the gasket body 3 for positioning.

[0033] Specifically, the outer ring 1, as an outer support component, can smoothly slide into the gasket body 3 when the flange 22 is installed. Through subsequent tightening, the gasket body 3 undergoes elastic deformation, filling the tiny gap between the flange 22 and the pipe, thus achieving a reliable sealing effect and effectively preventing liquid or gas leakage. Multiple fixing plates 4 are fixedly connected to the top of the outer ring 1. These fixing plates 4 are evenly distributed on the top circumference of the outer ring 1. The function of the fixing plates 4 is to provide an installation position for the rotating shaft 5, and also to support and fix the pressure plate 6. The rotating shaft 5 is fixedly connected to the top of the inner wall of the fixing plate 4. The rotating shaft 5 serves as the rotation center of the pressure plate 6. The pressure plates 6 are rotatably connected to the front and rear ends of the outer wall of the rotating shaft 5. The pressure plates 6 can rotate flexibly around the rotating shaft 5, allowing the angle of the pressure plates 6 to be adjusted as needed to achieve the tightening operation of the flange 22. A rotating shaft 7 is rotatably connected to the inner wall of the pressure plate 6. The middle of the outer wall of the rotating shaft 7 is fixed... A movable plate 8 is fixedly connected to the pressure plate 6. The rotating shaft 7 connects the pressure plate 6 and the movable plate 8, and allows the movable plate 8 to rotate at a certain angle relative to the pressure plate 6, thus adapting to different pressing requirements. The rotating shaft 9 allows the arc plate 10 to rotate relative to the movable plate 8. The bottom of the arc plate 10 is fixedly connected to a movable column 11, which acts as a transmission component, transmitting the movement of the arc plate 10 to the movable disc 12. The bottom end of the movable column 11 is fixedly connected to the movable disc 12, which is the component where the operator directly applies force. The right side of the inner wall of the movable disc 12 is threaded with a threaded column 13. By rotating the threaded column 13, the movable disc 12 can be loosened and locked. When it is necessary to press the flange 22, the threaded column 13 is loosened, and the movable disc 12 is pulled down, so that the pressure plate 6 presses the flange 22 down to enhance the sealing effect. After pressing is completed, the threaded column 13 is tightened to fix the position of the movable disc 12 and maintain the pressing force.

[0034] Please see the appendix Figure 3 Appendix Figure 4 and attached Figure 6 The positioning mechanism 2 includes a fixing block 201. The outer wall of the fixing block 201 is fixedly connected to the inner wall of the gasket body 3. An arc plate 202 is fixedly connected to the right side of the fixing block 201. A fixing column 203 is fixedly connected to the inner wall of the arc plate 202. A rotating block 204 is rotatably connected to the middle of the outer wall of the fixing column 203. A spring column 205 is fixedly connected to the right side of the rotating block 204. A rotating block 206 is fixedly connected to the right end of the spring column 205. A fixing column 207 is rotatably connected to the inner wall of the rotating block 206. An arc plate 208 is fixedly connected to the outer wall of the fixing column 207. A connecting plate 209 is fixedly connected to the right side of the arc plate 208. A sliding plate 210 is fixedly connected to the right side of the connecting plate 209. Multiple 211s are opened at the bottom of the outer wall of the flange 22.

[0035] Specifically, the fixing block 201, as a fixing component, has its outer wall fixedly connected to the inner wall of the gasket body 3, providing a solid support foundation. The arc-shaped plate 202 is fixedly connected to the right side of the fixing block 201, providing a stable installation position for the fixing column 203. The fixing column 203 is fixed to the inner wall of the arc-shaped plate 202, and its outer wall is rotatably connected to the rotating block 204. The rotating block 204 can rotate flexibly around the fixing column 203. This rotatable connection provides space for the subsequent extension and retraction of the spring column 205. The left end of the spring column 205 is fixedly connected to the right side of the rotating block 204, and the right end is fixedly connected to the rotating block 206. The spring column 205 has the characteristic of elastic deformation and can expand and contract when subjected to external force. The spring column 205 is in a certain pre-tightened state. When subjected to external triggering force, the spring column 205 will drive other components to move, realizing the positioning function. The rotating block 206... 206 is fixedly connected to the right end of spring column 205, and its inner wall is rotatably connected to fixed column 207. Rotating block 206 can rotate around fixed column 207, so that the extension and retraction of spring column 205 can be effectively transmitted to fixed column 207 through rotating block 206, realizing the transmission of force and the conversion of direction. Arc plate 208 is fixedly connected to the outer wall of fixed column 207. It cooperates with arc plate 202 to form a support and transmission structure. Connecting plate 209 is fixedly connected to the right side of arc plate 208. Its function is to transmit the movement of arc plate 208 to sliding plate 210. Sliding plate 210 can slide under the action of force, thereby realizing the docking with 211 opened at the bottom of the outer wall of flange 22. Multiple 211 are opened at the bottom of the outer wall of flange 22. The shape and size of these 211 match the sliding plate 210. Sliding plate 210 will be inserted into 211 to achieve positioning.

[0036] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 6 A label 14 is fixedly connected to the front side of the outer ring 1. Multiple threaded holes 21 are opened on the inner wall of the flange 22 near the edge. Threaded posts 18 are threadedly connected to the inner wall of the threaded holes 21. Nuts 19 are threadedly connected to the outer wall of the threaded posts 18. The bottom of the pressure plate 6 is slidably connected to the top of the outer wall of the flange 22. The outer wall of the arc plate 10 is slidably connected to the top of the inner wall of the outer ring 1.

[0037] Specifically, label 14 is used to describe gasket parameters, threaded hole 21 is used to provide a fixed position, threaded post 18 is used to fix flange 22, nut 19 is used to fix threaded post 18, pressure plate 6 presses on the top of the outer wall of flange 22, and arc plate 10 can slide on the top of the inner wall of outer ring 1.

[0038] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The inner wall of the gasket body 3 is provided with multiple threaded holes 20 near the edge. The bottom end of the threaded column 13 is fixedly connected to a rotating sleeve 15. The bottom of the moving disk 12 is fixedly connected to a handle 16. The outer wall of the handle 16 is fixedly connected to an anti-slip sleeve 17. The front side of the inner wall of the outer ring 1 is slidably connected to the outer wall of the moving column 11. The bottom of the inner wall of the outer ring 1 is threadedly connected to the top of the outer wall of the threaded column 13.

[0039] Specifically, threaded hole 20 is used to provide a fixed space, rotating sleeve 15 is used to rotate threaded column 13, handle 16 is used to move moving disk 12, anti-slip sleeve 17 plays an anti-slip role, moving column 11 can slide on the front side of the inner wall of outer ring 1, and threaded column 13 can rotate into the bottom of the inner wall of outer ring 1.

[0040] Working principle: First, insert the flange 22 into the gasket body 3. Then, loosen the threaded post 13 and pull down the moving plate 12, which in turn moves the moving post 11 downward. The moving post 11 moves the arc plate 10 downward, which in turn moves the rotating shaft 9 downward. The rotating shaft 9 moves the moving plate 8 downward, which in turn moves the rotating shaft 7 downward, which in turn moves the pressure plate 6 downward. The pressure plate 6 rotates around the rotating shaft 5, pressing the flange 22 downward, thus strengthening the clamping force, preventing water from leaking out of the gasket, reducing resource waste, ensuring safety, and improving practicality.

[0041] First, the flange 22 is attached to the gasket body 3, and then moved. When the sliding plate 210 slides onto 211, due to the action of the spring column 205, the rotating block 204 rotates around the fixed column 203, and the rotating block 206 rotates around the fixed column 207. The arc plate 202 supports the fixed column 203, and the fixed block 201 supports the arc plate 202. The spring column 205 drives the rotating block 206 to move, the rotating block 206 drives the fixed column 207 to move, the fixed column 207 drives the arc plate 208 to move, the arc plate 208 drives the connecting plate 209 to move, and the connecting plate 209 drives the sliding plate 210 to move, so that the sliding plate 210 is inserted into 211. This achieves the function of quickly positioning the sealing gasket, preventing misalignment and improving practicality.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing gasket structure for a drip-tight pipe flange, comprising an outer ring (1), characterized in that: A gasket body (3) is fixedly connected to the middle of the inner wall of the outer ring (1). A flange (22) is slidably connected to the middle of the inner wall of the gasket body (3). Multiple fixing plates (4) are fixedly connected to the top of the outer ring (1). A rotating shaft (5) is fixedly connected to the top of the inner wall of the fixing plate (4). A pressure plate (6) is rotatably connected to the front and rear ends of the outer wall of the rotating shaft (5). A rotating shaft (7) is rotatably connected to the inner wall of the pressure plate (6). A moving plate (8) is fixedly connected to the middle of the outer wall of the rotating shaft (7). The bottom of the inner wall of the movable plate (8) is rotatably connected to a rotating shaft three (9), the outer wall of the rotating shaft three (9) is fixedly connected to an arc plate three (10), the bottom of the arc plate three (10) is fixedly connected to a moving column (11), the bottom end of the moving column (11) is fixedly connected to a moving disk (12), the right side of the inner wall of the moving disk (12) is threadedly connected to a threaded column one (13), and the front and rear sides of the inner wall of the gasket body (3) are fixedly connected to positioning mechanisms (2), which are used for positioning.

2. The drip-tight pipe flange gasket structure according to claim 1, characterized by: The positioning mechanism (2) includes a fixing block (201), the outer wall of which is fixedly connected to the inner wall of the gasket body (3), an arc-shaped plate (202) is fixedly connected to the right side of the fixing block (201), a fixing column (203) is fixedly connected to the inner wall of the arc-shaped plate (202), a rotating block (204) is rotatably connected to the middle of the outer wall of the fixing column (203), a spring column (205) is fixedly connected to the right side of the rotating block (204), and a rotating block (206) is fixedly connected to the right end of the spring column (205). The inner wall of the rotating block two (206) is rotatably connected to the fixed column two (207), the outer wall of the fixed column two (207) is fixedly connected to the arc plate two (208), the right side of the arc plate two (208) is fixedly connected to the connecting plate (209), the right side of the connecting plate (209) is fixedly connected to the sliding plate (210), and the bottom of the outer wall of the flange (22) is provided with multiple (211).

3. The drip-tight pipe flange gasket structure according to claim 1, characterized by: A label (14) is fixedly connected to the front side of the outer ring (1), and multiple threaded holes (21) are opened on the inner wall of the flange (22) near the edge.

4. The drip-tight pipe flange gasket structure according to claim 3, characterized by: The inner wall of the threaded hole 2 (21) is threaded with a threaded post 2 (18), and the outer wall of the threaded post 2 (18) is threaded with a nut (19).

5. The drip-tight pipe flange gasket structure according to claim 1, characterized by: The inner wall of the gasket body (3) is provided with multiple threaded holes (20) near the edge, and the bottom end of the threaded post (13) is fixedly connected to a rotating sleeve (15).

6. The drip-tight pipe flange gasket structure according to claim 1, characterized by: The bottom of the movable disk (12) is fixedly connected to a handle (16), and the outer wall of the handle (16) is fixedly connected to an anti-slip sleeve (17).

7. The drip-tight pipe flange gasket structure according to claim 1, characterized by: The bottom of the pressure plate (6) is slidably connected to the top of the outer wall of the flange (22), and the outer wall of the arc plate three (10) is slidably connected to the top of the inner wall of the outer ring (1).

8. The drip-tight pipe flange gasket structure according to claim 1, characterized by: The inner wall front side of the outer ring (1) is in sliding connection with the outer wall of the moving column (11), and the inner wall bottom of the outer ring (1) is in threaded connection with the outer wall top of the threaded column (13).

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