Anti-loose flange gasket

Abstract

The utility model discloses an anti-loose type flange gasket, which relates to the technical field of flange gaskets, comprises a first half gasket and a second half gasket which are symmetrically arranged, and solves the problems that the existing anti-loose type flange gasket generally adopts an integrally formed structure, the whole body needs to be replaced after being damaged, and the manufacturing cost is high. The first half gasket and the second half gasket are combined into a whole, so that only the first half gasket or the second half gasket needs to be replaced when a certain part is damaged during use, and more resources are saved compared with replacement of the whole. And meanwhile, through cooperation of a first protruding ring and a second protruding ring, the whole flange is more convenient to install, the overall structural strength and stability are improved through a first semi-ring and a second semi-ring, the corrosion resistance of the flange is improved while abrasion is reduced through an abrasion-resistant layer, and the flange can be used in more media.

Description

Technical Field

[0001] The utility model relates to the technical field of flange gaskets, in particular to an anti-loosening type flange gasket. Background Art

[0002] Anti-loosening flange gasket is a sealing component widely used in the connection of pipes, valves, pumps and other equipment, most of which are made of one-piece molding.

[0003] After long-term use, the sealing contact area between the surface of the anti-loosening flange gasket and the fluid medium and the flange connection surface may be worn, aged or corroded, thereby reducing its sealing performance and anti-loosening effect. In addition, since the anti-loosening flange gasket usually adopts an one-piece molding structure, it is impossible to replace only the damaged area during the overall replacement. Therefore, the entire gasket needs to be replaced. Such an overall replacement method may cause the originally undamaged parts to be replaced, thereby causing unnecessary waste of resources. Utility Model Content

[0004] The utility model aims to provide an anti-loosening flange gasket, which solves the problem that the current anti-loosening flange gasket in the background technology needs to be replaced as a whole after being damaged, which wastes resources.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of anti-loosening flange gasket, comprising a first half gasket and a second half gasket, and the first half gasket and the second half gasket are symmetrically arranged, the upper ends of the first half gasket and the second half gasket are provided with connecting holes for bolts to pass through, and there are multiple groups of connecting holes, a first connecting block is fixedly provided on one side of the first half gasket, a second connecting block is fixedly provided on one side of the second half gasket, a first connecting groove is provided on one side of the first half gasket, a second connecting groove is provided on one side of the second half gasket, the first connecting block is adapted to the second connecting groove, the second connecting block is adapted to the first connecting groove, and the upper ends of the first connecting block and the second connecting block are respectively provided with a first through hole and a second through hole.

[0006] Preferably, the second connecting groove is communicated with one group of connecting holes, and the first connecting groove is communicated with another group of connecting holes.

[0007] Preferably, the upper and lower ends of the first half gasket and the second half gasket are both provided with a first raised ring and a second raised ring, and a groove is formed between the first raised ring, the second raised ring, the first half gasket and the second half gasket.

[0008] Preferably, a first half ring is provided inside the first half gasket, and a second half ring is provided inside the second half gasket, and the first half ring and the second half ring are components made of metal material.

[0009] Preferably, the surfaces of the first half gasket and the second half gasket are provided with a wear-resistant layer, and the wear-resistant layer is made of polytetrafluoroethylene.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model provides an anti-loosening flange gasket, which combines a first half gasket and a second half gasket into a whole, so that when a certain part is damaged during use, only the first half gasket or the second half gasket needs to be replaced, which saves more resources than replacing the whole. At the same time, the cooperation of the first raised ring and the second raised ring makes it more convenient to install the whole on the flange, and the first half ring and the second half ring increase the overall structural strength and stability. Secondly, the wear-resistant layer reduces wear and increases its corrosion resistance, so that it can be used in more media. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the first half of the gasket structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the second half gasket structure of the utility model;

[0015] Figure 4 It is an overall cross-sectional view of the utility model;

[0016] Figure 5 This is a schematic diagram of the wear-resistant layer structure of the utility model.

[0017] In the figure: 1. first half gasket; 11. first connecting block; 12. first through hole; 13. first connecting groove; 14. first half ring; 2. second half gasket; 21. second connecting block; 22. second through hole; 23. second connecting groove; 24. second half ring; 3. connecting hole; 4. first raised ring; 5. second raised ring; 6. groove; 7. wear-resistant layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0020] Combination Figure 1-Figure 3 The utility model discloses a loose-proof flange gasket, comprising a first half gasket 1 and a second half gasket 2, and the first half gasket 1 and the second half gasket 2 are symmetrically arranged, the upper ends of the first half gasket 1 and the second half gasket 2 are provided with connecting holes 3 for bolts to pass through, and the connecting holes 3 are provided with multiple groups, a first connecting block 11 is fixedly provided on one side of the first half gasket 1, a second connecting block 21 is fixedly provided on one side of the second half gasket 2, a first connecting groove 13 is provided on one side of the first half gasket 1, a second connecting groove 23 is provided on one side of the second half gasket 2, the first connecting block 11 is adapted to the second connecting groove 23, the second connecting block 21 is adapted to the first connecting groove 13, and the upper ends of the first connecting block 11 and the second connecting block 21 are respectively provided with a first through hole 12 and a second through hole 22.

[0021] Specifically, during installation, first insert the first connecting block 11 into the second connecting groove 23, and insert the second connecting block 21 into the first connecting groove 13, so that the first half gasket 1 and the second half gasket 2 are combined into a whole, and placed between the flanges, and the connecting hole 3 corresponds to the threaded hole of the flange, and then the screw is passed through the threaded hole and the connecting hole 3 on the flange, and the screw is passed through the first through hole 12 and the second through hole 22 at the same time, and the first half gasket 1 and the second half gasket 2 are fixed between the flanges with the cooperation of the screw and the nut. When the first half gasket 1 or the second half gasket 2 is damaged somewhere after long-term use, the screw is separated from the nut, and the flange is separated, and then the first half gasket 1 and the second half gasket 2 are pulled to both sides to separate the first connecting block 11 from the second connecting groove 23, and the second connecting block 21 from the first connecting groove 13. It is only necessary to combine the new first half gasket 1 or the second half gasket 2 and reinstall it between the flanges, which saves more resources than replacing the whole.

[0022] The utility model is further described below in conjunction with embodiments.

[0023] Combination Figure 2 and Figure 3 The second connecting groove 23 is connected to one group of connecting holes 3 , and the first connecting groove 13 is connected to another group of connecting holes 3 .

[0024] In this embodiment, since the second connecting groove 23 is connected to a group of connecting holes 3 and the first connecting groove 13 is connected to another group of connecting holes 3, when the first connecting block 11 is inserted into the second connecting block 21, the first through hole 12 corresponds to a group of connecting holes 3, and when the second connecting block 21 is inserted into the first connecting groove 13, the second through hole 22 corresponds to another group of connecting holes 3. When the screw passes through the flange hole, it can pass through a group of connecting holes 3 and the first through hole 12 and another group of connecting holes 3 and the second through hole 22, thereby fixing the first connecting block 11 and the second connecting groove 23, and fixing the second connecting block 21 and the first connecting groove 13 at the same time.

[0025] Combination Figure 3 The upper and lower ends of the first half gasket 1 and the second half gasket 2 are both provided with a first raised ring 4 and a second raised ring 5 , and a groove 6 is formed between the first raised ring 4 and the second raised ring 5 and the first half gasket 1 and the second half gasket 2 .

[0026] In this embodiment, when the first half gasket 1 and the second half gasket 2 are combined into one, the first raised ring 4 is adapted to the inner ring of the flange, and the second raised ring 5 is adapted to the outer ring diameter of the flange. Therefore, during installation, the combined first half gasket 1 and the second half gasket 2 are placed on one side of a single flange, so that the first raised ring 4 is inserted into the inner ring of the flange, and the second raised ring 5 is wrapped around the outer ring of the flange. At this time, the flange is inside the groove 6, so there is no need to hold the gasket manually during installation, making the installation process more convenient.

[0027] Combination Figure 2-Figure 4 A first half ring 14 is provided inside the first half gasket 1, and a second half ring 24 is provided inside the second half gasket 2. The first half ring 14 and the second half ring 24 are components made of metal material.

[0028] In this embodiment, the first half ring 14 and the second half ring 24 made of metal material can increase the overall structural strength and stability, and the first half ring 14 and the second half ring 24 made of metal material can increase the overall adaptability to temperature, pressure and medium changes, and improve stability and reliability under complex working conditions.

[0029] Combination Figure 5 The surfaces of the first half gasket 1 and the second half gasket 2 are provided with a wear-resistant layer 7, and the wear-resistant layer 7 is made of polytetrafluoroethylene.

[0030] In this embodiment, the wear-resistant layer 7 formed by the first half gasket 1 and the second half gasket 2 can reduce the wear of the contact surface with the flange, extend its service life, and reduce the frequency of replacement. At the same time, the wear-resistant layer 7 made of polytetrafluoroethylene material also has good corrosion resistance and can be used in more media.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A loose-proof flange gasket, comprising a first half gasket (1) and a second half gasket (2), wherein the first half gasket (1) and the second half gasket (2) are symmetrically arranged, characterized in that: The upper ends of the first half gasket (1) and the second half gasket (2) are provided with connection holes (3) for passing bolts, and the connection holes (3) are provided in a plurality of groups; a first connection block (11) is fixedly provided on one side of the first half gasket (1), and a second connection block (21) is fixedly provided on one side of the second half gasket (2); a first connection groove (13) is provided on one side of the first half gasket (1), and a second connection groove (23) is provided on one side of the second half gasket (2); the first connection block (11) is matched with the second connection groove (23), and the second connection block (21) is matched with the first connection groove (13); the upper ends of the first connection block (11) and the second connection block (21) are respectively provided with a first through hole (12) and a second through hole (22).

2. The anti-loosening flange gasket according to claim 1, characterized in that: The second connecting groove (23) is connected to a group of connecting holes (3), and the first connecting groove (13) is connected to another group of connecting holes (3).

3. The anti-loosening flange gasket according to claim 1, characterized in that: The first half gasket (1) and the second half gasket (2) are both provided with a first protruding ring (4) and a second protruding ring (5) at their upper and lower ends, and a groove (6) is formed between the first protruding ring (4), the second protruding ring (5), the first half gasket (1) and the second half gasket (2).

4. The anti-loosening flange gasket according to claim 1, characterized in that: A first half ring (14) is provided inside the first half gasket (1), and a second half ring (24) is provided inside the second half gasket (2); the first half ring (14) and the second half ring (24) are components made of metal material.

5. The anti-loosening flange gasket according to claim 1, characterized in that: The surfaces of the first half gasket (1) and the second half gasket (2) are provided with a wear-resistant layer (7), and the wear-resistant layer (7) is made of polytetrafluoroethylene.

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