Improved flange plate sealing structure

Abstract

The utility model relates to the technical field of flange plates, and discloses an improved flange plate sealing structure which comprises pipe ends, flange plates, a sealing mechanism, a butt joint groove, a butt joint pad, a sealing group groove, a sealing group pad, a thread locking groove, a connecting screw groove and a fixing bolt. The butt joint pads at the two ends of the sealing mechanism can be in limited butt joint with the interiors of the butt joint grooves, and the sealing group pads at the two ends of the sealing mechanism can be clamped with the interiors of the sealing group grooves at the same time, so that multiple times of sealing and blocking are conducted through the sealing group pads; when the sealing mechanism is installed, the butt joint pads and the sealing group pads at the two ends of the sealing mechanism can be firmly extruded, attached and sealed, meanwhile, when the sealing mechanism is installed, the butt joint pads and the sealing group pads at the two ends of the sealing mechanism can be limited through the butt joint grooves and the sealing group grooves, the installation stability of the sealing mechanism is guaranteed, and the deviation condition is avoided.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to an improved flange sealing structure. Background Technology

[0002] A flange is a component used to connect pipes together, connecting the pipe ends. A flange connection consists of the flange itself, a gasket, and bolts. The gasket is located between the two flanges to fill the gap between them and ensure a seal.

[0003] However, when existing flanges are sealed together using gaskets, they are fixed together by bolts. If the bolts deform under long-term stress, the gaskets between the flanges are prone to shift, resulting in gaps between the flange ends and affecting the sealing effect. Therefore, we propose an improved flange sealing structure. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide an improved flange sealing structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an improved flange sealing structure, including a pipe end, a flange, and a sealing mechanism. One end of the flange is provided with a mating groove, one end of the sealing mechanism is integrally formed with a mating gasket, one end of the flange is provided with two sets of sealing grooves, the sealing grooves are annular hollow grooves, one end of the sealing mechanism is integrally formed with two sets of sealing gaskets, one end of the flange is provided with a threaded locking groove that communicates with the inside of the sealing groove, the surface of the sealing gasket is provided with a connecting threaded groove that penetrates the sealing mechanism, and a fixing bolt is provided on one side of the pipe end for fixing and mating the two sets of flanges.

[0006] Preferably, the sealing mechanism is an annular gasket and has deformation characteristics. When one end of the sealing mechanism is mated with one end of the flange, the mating gasket at one end of the sealing mechanism and the mating groove at one end of the flange are mated and limited.

[0007] Preferably, the sealing gasket is an annular gasket and has deformation characteristics. When the two sets of flanges are sealed together by the sealing mechanism, the two sets of sealing gaskets at both ends of the sealing mechanism and the two sets of sealing grooves at one end of the flange are in a secondary sealing and blocking state.

[0008] Preferably, when the threaded locking grooves inside the two sets of flanges are connected by fixing bolts, the connecting threaded groove inside the sealing mechanism and the outside of the fixing bolts are in a threaded connection limiting state.

[0009] Preferably, the threaded surface of the fixing bolt is covered with a threaded washer, and the threaded washer itself has deformation characteristics.

[0010] Preferably, when the fixing bolt is threaded into the threaded locking groove inside the flange and the connecting threaded groove inside the sealing mechanism, the threaded washer outside the fixing bolt is in a sealed, fitted, and compressed state with the threaded locking groove and the connecting threaded groove.

[0011] This utility model provides an improved flange sealing structure. It has the following beneficial effects:

[0012] 1. This improved flange sealing structure, in which the flanges on the two sets of pipe ends are mated and sealed with the sealing mechanism, the mating gaskets at both ends of the sealing mechanism can be limited and fitted with the mating grooves inside the flanges, while the sealing gaskets at both ends of the sealing mechanism can simultaneously engage with the sealing grooves, allowing for multiple sealing and isolation through the sealing gaskets. When the two sets of flanges are threaded and fixed with the sealing mechanism using fixing bolts, the mating gaskets and sealing gaskets at both ends of the sealing mechanism can be firmly squeezed and fitted to seal, ensuring the sealing performance between the two sets of flanges. At the same time, during installation, the mating gaskets and sealing gaskets at both ends of the sealing mechanism can also be limited by the mating grooves and sealing grooves, ensuring the installation stability of the sealing mechanism and avoiding displacement, thereby improving the sealing effect of the sealing mechanism.

[0013] 2. In this improved flange sealing structure, the fixing bolt has a threaded gasket wrapped around its own threads. The threaded gasket has deformation characteristics. When the fixing bolt is threadedly connected to the threaded locking groove inside the flange and the connecting thread groove inside the sealing mechanism, the fixing bolt can squeeze and fit the threaded locking groove and the connecting thread groove through the threaded gasket, thereby improving the installation sealing between the two sets of flanges. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0018] Figure 3 This utility model Figure 1 Enlarged view of B in the middle;

[0019] Figure 4 This is a partial schematic diagram of the fixing bolt of this utility model.

[0020] Legend:

[0021] 1. Pipe end; 2. Flange; 3. Sealing mechanism; 4. Butt groove; 5. Butt gasket; 6. Sealing assembly groove; 7. Sealing assembly gasket; 8. Threaded locking groove; 9. Connecting thread groove; 10. Fixing bolt; 11. Threaded gasket. 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] Example: An improved flange sealing structure, such as Figures 1-4 As shown, the device includes a pipe end 1, a flange 2, and a sealing mechanism 3. One end of the flange 2 has a mating groove 4. One end of the sealing mechanism 3 has an integrally formed mating gasket 5. One end of the flange 2 has two sets of sealing grooves 6, which are annular hollow grooves. One end of the sealing mechanism 3 has two sets of sealing gaskets 7. One end of the flange 2 has a threaded locking groove 8 that communicates with the inside of the sealing groove 6. The surface of the sealing gasket 7 has a connecting threaded groove 9 that penetrates the sealing mechanism 3. One side of the pipe end 1 is provided with a fixing bolt 10 for fixing and mating the two sets of flanges 2. The threaded surface of the fixing bolt 10 is covered with a threaded gasket 11, which has deformation characteristics.

[0024] Furthermore, the sealing mechanism 3 is an annular gasket and has deformation characteristics. When one end of the sealing mechanism 3 is mated with one end of the flange 2, the mating gasket 5 at one end of the sealing mechanism 3 and the mating groove 4 at one end of the flange 2 are mated and limited.

[0025] Furthermore, the sealing gasket 7 is an annular gasket and has deformation characteristics. When the two flanges 2 are sealed together by the sealing mechanism 3, the two sealing gaskets 7 at both ends of the sealing mechanism 3 and the two sealing grooves 6 at one end of the flange 2 are in a secondary sealing and blocking state.

[0026] Furthermore, when the threaded locking grooves 8 inside the two sets of flanges 2 are threadedly connected by the fixing bolts 10, the connecting threaded grooves 9 inside the sealing mechanism 3 are in a threaded connection limiting state with the outside of the fixing bolts 10.

[0027] Furthermore, when the fixing bolt 10 is threadedly connected to the threaded locking groove 8 inside the flange 2 and the connecting screw groove 9 inside the sealing mechanism 3, the threaded washer 11 outside the fixing bolt 10 is in a sealed and pressed state with the threaded locking groove 8 and the connecting screw groove 9.

[0028] The working principle of this utility model:

[0029] When the flanges 2 on the two sets of pipe ends 1 are mated and sealed with the sealing mechanism 3, the mating gaskets 5 at both ends of the sealing mechanism 3 can be matched and fitted with the mating grooves 4 inside the flanges 2. Meanwhile, the sealing gaskets 7 at both ends of the sealing mechanism 3 can simultaneously engage with the sealing grooves 6, allowing for multiple sealing and blocking through the sealing gaskets 7. When the two sets of flanges 2 are threadedly fixed to the sealing mechanism 3 using the fixing bolts 10, the mating gaskets 5 and sealing gaskets 7 at both ends of the sealing mechanism 3 are firmly squeezed and fitted together, ensuring the sealing performance between the two sets of flanges 2. Simultaneously, the sealing mechanism 3... During installation, the mating gaskets 5 and sealing gaskets 7 at both ends of the sealing mechanism 3 can also be limited by the mating grooves 4 and sealing grooves 6 to ensure the installation stability of the sealing mechanism 3 and avoid displacement. The fixing bolt 10 is covered with a threaded gasket 11 on its own thread. The threaded gasket 11 has deformation characteristics. When the fixing bolt 10 is threadedly connected to the threaded locking groove 8 inside the flange 2 and the connecting thread groove 9 inside the sealing mechanism 3, the fixing bolt 10 can squeeze and fit the threaded locking groove 8 and the connecting thread groove 9 through the threaded gasket 11, thereby improving the installation sealing between the two sets of flanges 2.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved flange sealing structure comprising a pipe end (1) and a flange (2) and a sealing mechanism (3), characterized in that: One end of the flange plate (2) is provided with a butt joint groove (4), one end of the sealing mechanism (3) is integrally formed with a butt joint pad (5), one end of the flange plate (2) is provided with two groups of sealing group grooves (6), the sealing group groove (6) is an annular hollow groove body, one end of the sealing mechanism (3) is integrally formed with two groups of sealing group pads (7), one end of the flange plate (2) is provided with a threaded locking groove (8) which is in communication with the inside of the sealing group groove (6), the surface of the sealing group pad (7) is provided with a connecting screw groove (9) which penetrates the sealing mechanism (3), one side of the pipe end (1) is provided with a fixing bolt (10) which fixes and butt joints the two groups of flange plates (2).

2. The improved flange seal structure according to claim 1, wherein: The sealing mechanism (3) is an annular pad body and has a deformation characteristic, when one end of the sealing mechanism (3) is butt jointed and adhered to one end of the flange plate (2), the butt joint pad (5) at one end of the sealing mechanism (3) is in butt joint limiting cooperation with the butt joint groove (4) at one end of the flange plate (2).

3. The improved flange seal structure according to claim 2, wherein: The sealing group pad (7) is an annular pad body and has a deformation characteristic, when the two groups of flange plates (2) are sealed and butt jointed by the sealing mechanism (3), the two groups of sealing group pads (7) at both ends of the sealing mechanism (3) are in a secondary sealing blocking state with the two groups of sealing group grooves (6) at one end of the flange plate (2).

4. The improved flange seal structure according to claim 3, wherein: When the threaded locking grooves (8) in the two groups of flange plates (2) are threadedly connected by the fixing bolt (10), the connecting screw grooves (9) in the sealing mechanism (3) are in a threadedly connected limiting state with the outside of the fixing bolt (10).

5. The improved flange seal structure according to claim 4, wherein: The fixing bolt (10) is provided with a threaded pad (11) on the threaded surface, and the threaded pad (11) has a deformation characteristic.

6. The improved flange seal structure according to claim 4, wherein: When the fixing bolt (10) is threadedly connected in the threaded locking grooves (8) in the flange plate (2) and the connecting screw grooves (9) in the sealing mechanism (3), the threaded pad (11) on the outside of the fixing bolt (10) is in a sealing adhering extrusion state with the inside of the threaded locking grooves (8) and the connecting screw grooves (9).

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