Positioning flange gasket

Abstract

The utility model discloses a positioning flange gasket, which belongs to the technical field of flange gaskets and comprises a gasket body, connecting seats are integrally formed on two sides of the gasket body, positioning holes are arranged on the surfaces of the connecting seats, and the outer side walls of the connecting seats are arc-shaped. An assembling structure facilitating assembling and splicing of the flange gasket is arranged at the top end of the gasket body, a rubber ring used for preventing the connecting position from being scratched is arranged at the bottom end of the gasket body, a connecting opening is formed in the upper surface of the gasket body, and supporting of the two ends of the flange gasket during installation is achieved; according to the flange gasket, the multiple sets of gasket bodies can be assembled, the thickness of the flange gasket can be adjusted according to the width of a gap formed by combining a flange and a pipeline, and therefore the phenomenon that the position of a concentric shaft deviates after the pipeline and the flange gasket are connected is avoided, the accuracy of the flange gasket after installation is improved, and the risk of air leakage is avoided; and the use effect of the flange gasket is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange gaskets, and particularly to a positioning flange gasket. Background Technique

[0002] Flange connection is a widely used connection method for gas pipelines. Flange gaskets are classified by material into asbestos gaskets, rubber gaskets, graphite gaskets, and metal wound gaskets. They are made by overlapping and spirally winding standard high-quality SS304, SS316 metal strips and other alloy materials with flexible materials such as graphite, asbestos, polytetrafluoroethylene, and non-asbestos, and fixing the metal strips at the beginning and end by spot welding. Its function is to be placed between two flanges to play a sealing role.

[0003] When the existing flange gasket is connected to the pipeline, the flange gasket should be installed at the coaxial position with the pipeline, and the sealing surface is at the flange water line position. Since the two sides of the flange gasket cannot be supported and positioned, the position of the concentric axis after the connection between the pipeline and the flange gasket is shifted, resulting in the flange gasket not being installed in place, which will cause the risk of air leakage and reduce the use effect of the flange gasket.

[0004] According to a flange gasket provided by the publication number: CN207406760U. It solves the problem of flange sealing, including a first ring and a second ring made of rubber elastic material. The first ring and the second ring are in a wedge-shaped structure transversely relative to the ring axis. A circular protrusion is provided in the middle of the first ring, and an annular retaining platform is provided outside the circular protrusion. A circular groove that fits with the circular protrusion is provided in the middle of the second ring, and an annular groove that fits with the annular retaining platform is provided at the bottom of the circular groove. An annular reinforcing insert is arranged inside the first ring and the second ring. The utility model can compensate for the alignment error of the misaligned flange by using the gasket for sealing.

[0005] According to the above-introduced flange gasket, since the two sides of the flange gasket cannot be supported and positioned, the position of the concentric axis after the connection between the pipeline and the flange gasket is shifted, resulting in the flange gasket not being installed in place, which will cause the risk of air leakage and reduce the use effect of the flange gasket. Therefore, we need to propose a positioning flange gasket. Content of the Utility Model

[0006] The purpose of the utility model is to provide a positioning flange gasket. Through the cooperation of the connecting seat and the positioning hole, when installing the flange gasket, the gasket body is connected to the pipeline. The positioning holes on the two connecting seats are fitted with the bolt holes of the flange plate, and then the positioning holes and the bolt holes are locked by bolts, realizing the support of both ends of the flange gasket during installation, thereby avoiding the shift of the concentric axis position after the connection between the pipeline and the flange gasket, improving the accuracy of the flange gasket after installation, avoiding the risk of air leakage, and improving the use effect of the flange gasket, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solution: A positioning flange gasket, comprising a gasket body, both sides of the gasket body are integrally formed with connecting seats, the surface of the connecting seats is provided with positioning holes, the outer side wall of the connecting seats is arc-shaped, the top of the gasket body is provided with an assembling structure for facilitating the assembly and splicing of the flange gasket, the bottom of the gasket body is provided with a rubber ring for preventing scratches on the connection part, and the upper surface of the gasket body is provided with a connection port.

[0008] Preferably, the assembling structure includes fixing columns, the fixing columns are fixedly connected to the upper surface of the gasket body, a fixing hole is provided on the lower surface of the gasket body, and the inner cavity of the fixing hole is in fit and clamping connection with the fixing columns.

[0009] Preferably, there are eight groups of the fixing columns, and the eight groups of fixing columns are distributed around the center on the upper surface of the gasket body.

[0010] Preferably, both sides of the connecting seat are fixedly connected with reinforcing blocks, and the shape of the reinforcing blocks is triangular.

[0011] Preferably, the lower surface of the rubber ring is provided with anti-slip grooves, there are several groups of the anti-slip grooves, and the several groups of anti-slip grooves are distributed around the center on the lower surface of the rubber ring.

[0012] Preferably, a sealing ring is fixedly connected to the upper surface of the gasket body, a sealing groove adapted to the sealing ring is provided on the lower surface of the gasket body, and the diameter of the sealing groove is smaller than the diameter of the rubber ring.

[0013] Preferably, a wear-resistant washer is provided on the upper surface of the gasket body, the diameter of the wear-resistant washer is larger than the diameter of the sealing ring, and wear-resistant particles are provided on the upper surface of the wear-resistant washer.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The present utility model provides a positioning flange gasket. Through the cooperation of the connecting seat and the positioning holes, when installing the flange gasket, the gasket body is connected to the pipeline, the positioning holes on both sides of the connecting seats are fitted with the bolt holes of the flange plate, and then the positioning holes and the bolt holes are locked by bolts, realizing the support at both ends of the flange gasket during installation, thereby avoiding the deviation of the concentric axis position after the pipeline is connected to the flange gasket, improving the accuracy of the flange gasket after installation, avoiding the risk of air leakage, and improving the use effect of the flange gasket.

[0016] 2. The present utility model provides a positioning flange gasket. Through the setting of the assembling structure, the thickness of the flange gasket can be adjusted according to the thickness of the gap generated after the pipeline is connected to the flange, so that the flange gaskets can be stacked, increasing the thickness of the flange gasket and reducing the gap after the flange is connected to the pipeline.

[0017] Other features and advantages of the present utility model will be described in the subsequent specification, and partly become apparent from the specification, or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the flange gasket superposition of the present utility model;

[0019] Figure 2 It is a schematic top view structural diagram of the present utility model;

[0020] Figure 3 It is a schematic bottom view structural diagram of the present utility model;

[0021] Figure 4 It is a schematic exploded structural diagram of the present utility model.

[0022] In the figure: 1, gasket body; 2, connecting seat; 3, positioning hole; 4, assembly structure; 41, fixing post; 42, fixing hole; 5, rubber ring; 6, connection port; 7, strengthening block; 8, anti-slip groove; 9, sealing ring; 10, sealing groove; 11, wear-resistant washer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , the present utility model provides a positioning flange gasket, including a gasket body 1. Connecting seats 2 are integrally formed on both sides of the gasket body 1. Positioning holes 3 are provided on the surfaces of the connecting seats 2. The outer side walls of the connecting seats 2 are arc-shaped. An assembly structure 4 for facilitating the assembly and splicing of the flange gasket is provided at the top end of the gasket body 1. A rubber ring 5 for preventing scratches on the connection part is provided at the bottom end of the gasket body 1. A connection port 6 is provided on the upper surface of the gasket body 1.

[0025] During installation, the gasket body 1 is fitted to the surface of the flange plate. The positioning holes 3 on the connecting seats 2 on both sides of the gasket body 1 are fitted to the bolt holes of the flange plate. Then, bolts are inserted into the bolt holes and extended into the inner cavity of the positioning holes 3. Through the cooperation of the bolts and the positioning holes 3, a supporting force is provided for the gasket body 1. Then, the positioning holes 3 and the bolt holes are locked by the bolts, realizing the support for both ends of the flange gasket during installation, thus avoiding the deviation of the concentric axis position after the pipeline is connected to the flange gasket, improving the accuracy of the flange gasket installation after installation, avoiding the risk of air leakage, and improving the use effect of the flange gasket.

[0026] The assembly structure 4 includes a fixing column 41, and the fixing column 41 is fixedly connected to the upper surface of the gasket body 1. A fixing hole 42 is formed in the lower surface of the gasket body 1, and the inner cavity of the fixing hole 42 is in fit and clamping connection with the fixing column 41. Through the cooperation of the fixing column 41 and the fixing hole 42, when the thickness of the flange gasket does not meet the requirement of the gap to be filled, another set of flange gaskets can be taken, and the two sets of flange gaskets are directly combined. The two gasket bodies 1 are combined, and the fixing column 41 is inserted into the inner cavity of the fixing hole 42 to position the angle after the combination of the gasket bodies 1, avoiding the deviation of the angle after the combination of the two sets of flange gaskets.

[0027] There are eight groups of fixing columns 41, and the eight groups of fixing columns 41 are distributed around the center on the upper surface of the gasket body 1. Through the arrangement of the fixing columns 41, the periphery of the flange gasket can be supported, improving the stability after the combination of the two sets of flange gaskets.

[0028] Reinforcing blocks 7 are fixedly connected to both sides of the connecting seat 2, and the shape of the reinforcing blocks 7 is triangular. Through the arrangement of the reinforcing blocks 7, the connection between the connecting seat 2 and the gasket body 1 is strengthened and fixed, avoiding the rupture between the connecting seat 2 and the gasket body 1 during long-term use, resulting in the deviation of the flange gasket position, and improving the service life of the flange gasket.

[0029] Anti-slip grooves 8 are formed in the lower surface of the rubber ring 5, and there are several groups of anti-slip grooves 8, which are distributed around the center on the lower surface of the rubber ring 5. Through the arrangement of the anti-slip grooves 8, the friction between the rubber ring 5 and the flange plate is increased, avoiding the sliding of the flange gasket on the surface of the flange plate after contact.

[0030] A sealing ring 9 is fixedly connected to the upper surface of the gasket body 1, and a sealing groove 10 adapted to the sealing ring 9 is formed in the lower surface of the gasket body 1. The diameter of the sealing groove 10 is smaller than the diameter of the rubber ring 5. Through the cooperation of the sealing ring 9 and the sealing groove 10, the sealing performance after the combination of the two gasket bodies 1 is increased, avoiding the leakage of gas from the gap after the combination of the two gasket bodies 1.

[0031] The upper surface of the gasket body 1 is provided with a wear-resistant washer 11. The diameter of the wear-resistant washer 11 is larger than that of the sealing ring. The upper surface of the wear-resistant washer 11 is provided with wear-resistant particles. Through the setting of the wear-resistant washer 11, the wear resistance at the connection between the gasket bodies 1 is increased, and direct friction between the two groups of gasket bodies 1 is avoided.

[0032] Specific usage method: During installation, according to the gap between the flange and the pipeline, increase the thickness of the flange gasket, and stack multiple groups of gasket bodies. When the fixing column 41 is inserted into the inner cavity of the fixing hole 42 and the sealing ring fits with the inner cavity of the sealing groove 10, assemble multiple gasket bodies so that the thickness of the flange gasket can be changed according to the gap between the flange and the pipeline. Then, fit the flange gasket with the flange surface. The positioning holes 3 on the connecting seats 2 on both sides of the flange gasket are fitted with the bolt holes of the flange plate. Then, insert the bolts into the bolt holes and extend them into the inner cavity of the positioning holes 3. Through the cooperation between the bolts and the positioning holes 3, provide a supporting force for the gasket body 1. Then, lock the positioning holes 3 and the bolt holes through the bolts to achieve the support for both ends of the flange gasket during installation, thereby avoiding the deviation of the concentric axis position after the connection between the pipeline and the flange gasket, improving the accuracy of the flange gasket after installation, avoiding the risk of air leakage, and improving the usage effect of the flange gasket.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning flange gasket, comprising a gasket body (1), characterized in that: Both sides of the gasket body (1) are integrally formed with connecting seats (2). Positioning holes (3) are formed on the surfaces of the connecting seats (2). The outer side walls of the connecting seats (2) are arc-shaped. An assembling structure (4) for facilitating the assembly and splicing of the flange gasket is arranged at the top end of the gasket body (1). A rubber ring (5) for preventing scratches on the connection part is arranged at the bottom end of the gasket body (1). A connection port (6) is formed on the upper surface of the gasket body (1).

2. The positioning flange gasket according to claim 1, wherein: The assembling structure (4) includes fixing columns (41). The fixing columns (41) are fixedly connected to the upper surface of the gasket body (1). Fixing holes (42) are formed on the lower surface of the gasket body (1). The inner cavity of the fixing holes (42) is in fit and engagement with the fixing columns (41).

3. A positioning flange gasket according to claim 2, characterized in that: There are eight groups of the fixing columns (41). The eight groups of fixing columns (41) are distributed around the center on the upper surface of the gasket body (1).

4. A positioning flange gasket according to claim 1, characterized in that: Reinforcing blocks (7) are fixedly connected to both sides of the connecting seats (2). The shapes of the reinforcing blocks (7) are triangular.

5. A positioning flange gasket according to claim 1, characterized in that: Anti-slip grooves (8) are formed on the lower surface of the rubber ring (5). There are several groups of the anti-slip grooves (8). The several groups of anti-slip grooves (8) are distributed around the center on the lower surface of the rubber ring (5).

6. The positioning flange gasket according to claim 1, wherein: A sealing ring (9) is fixedly connected to the upper surface of the gasket body (1). A sealing groove (10) adapted to the sealing ring (9) is formed on the lower surface of the gasket body (1). The diameter of the sealing groove (10) is smaller than the diameter of the rubber ring (5).

7. A positioning flange gasket according to claim 1, characterized in that: A wear-resistant washer (11) is arranged on the upper surface of the gasket body (1). The diameter of the wear-resistant washer (11) is larger than the diameter of the sealing ring. Wear-resistant particles are arranged on the upper surface of the wear-resistant washer (11).

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