Sealing structure
By providing a sealing part on the flat gasket and setting it in the accommodating groove, the problem that the prior art cannot effectively seal under high pressure is solved, and better sealing effect and leakage prevention are achieved.
Patent Information
- Application Number
- CN202510005823.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-04-11
AI Technical Summary
The existing flat gasket sealing design cannot be effectively sealed under high pressure conditions, resulting in leakage problems.
A sealing structure is designed, by providing a sealing part on the flat gasket and setting the flat gasket in the accommodating groove, the sealing part is used to abut with the tooling, thereby enhancing the sealing property and preventing leakage caused by deformation under high pressure.
It effectively improves the sealing effect of the sealing structure in high-pressure state, avoids leakage problems, and meets the sealing requirements under high-pressure working conditions.
Smart Images
Figure CN119802224A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of sealing, and in particular to a sealing structure. Background Art
[0002] In the process of designing joints of pressure vessels and pipelines, it is often encountered that flat gaskets are used for sealing. The usual sealing design method is to block the gas diffusion channel on the plane through the compression deformation of the flat gasket to achieve sealing. However, under high pressure, the sealing plane will deform to a certain extent. At this time, the elasticity of the flat gasket is difficult to compensate for the deformation caused by the high pressure, resulting in leakage.
[0003] Therefore, the existing flat gasket sealing design cannot adapt to high-pressure working conditions, and many leakages occur during actual use. Summary of the invention
[0004] In view of this, the present invention provides a sealing structure to solve the problem that the existing flat gasket sealing design cannot adapt to high-pressure working conditions.
[0005] The present invention provides a sealing structure, comprising:
[0006] First tooling;
[0007] A second tooling, arranged on one side of the first tooling;
[0008] A flat gasket, adapted to be disposed between the first fixture and the second fixture;
[0009] A receiving groove is provided on one side of the first tooling and / or the second tooling close to the flat gasket; a portion of the flat gasket is suitable for being arranged in the receiving groove;
[0010] There is at least one sealing part; the sealing part is arranged on one side of the flat gasket.
[0011] When dealing with the situation of flat gasket sealing, the present solution has a sealing portion on the flat gasket, which abuts against the first tooling or the second tooling through the sealing portion, so that the sealing between the first tooling and the second tooling is better, and the flat gasket is arranged in the accommodating groove to prevent leakage caused by deformation of the sealing plane of the flat gasket under high pressure, thereby meeting the sealing effect under high pressure.
[0012] In an optional embodiment, the sealing portion has one.
[0013] In an optional embodiment, the sealing portion includes a first sealing thorn and a second sealing thorn; the first sealing thorn is arranged on the first side of the flat gasket, and the second sealing thorn is arranged on the second side of the flat gasket. This solution increases the sealing effect on both sides of the flat gasket by respectively arranging the first sealing thorn and the second sealing thorn on both sides of the flat gasket.
[0014] In an optional embodiment, the cross-section of the first sealing thorn and the second sealing thorn is triangular. In this solution, the cross-section of the first sealing thorn and the second sealing thorn is designed to be triangular, and the triangular cross-sectional structure has the advantage of being easy to manufacture.
[0015] In an optional embodiment, a first groove suitable for abutting and connecting with the first sealing thorn is provided on a side of the first tooling close to the flat gasket; a second groove suitable for abutting and connecting with the second sealing thorn is provided on a side of the second tooling close to the flat gasket.
[0016] In an optional embodiment, the flat gasket and the sealing portion are integrally formed. In this solution, the integral forming method has the advantages of low cost and high quality of the finished product.
[0017] In an optional embodiment, the flat gasket and the sealing part are made of copper. In this solution, the flat gasket and the sealing part are made of copper, which has the advantages of strong ductility and corrosion resistance.
[0018] In an optional embodiment, the receiving groove is arranged on a side of the first tooling close to the flat gasket.
[0019] In an optional embodiment, the first groove is arranged at the bottom of the accommodating groove.
[0020] In an optional embodiment, the height of the first sealing thorn and the second sealing thorn is 0.2 mm-0.4 mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of the overall structure of a sealing structure according to an embodiment of the present invention;
[0023] Figure 2 for Figure 1 A magnified view of A is shown;
[0024] Figure 3 A schematic diagram of a first tooling of a sealing structure according to an embodiment of the present invention;
[0025] Figure 4 for Figure 2 an enlarged view of said B;
[0026] Description of reference numerals:
[0027] 1. First tooling; 11. First groove; 12. Accommodating groove; 2. Second tooling; 21. Second groove; 3. Flat gasket; 4. Sealing part; 41. First sealing thorn; 42. Second sealing thorn. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0029] like Figure 1 As shown, according to an embodiment of the present invention, a sealing structure is provided, comprising a first tooling 1, a second tooling 2, a flat gasket 3 and a sealing portion 4, wherein the second tooling 2 is arranged on one side of the first tooling 1; the flat gasket 3 is suitable for being arranged between the first tooling 1 and the second tooling 2; a receiving groove 12 is arranged on one side of the first tooling 1 and / or the second tooling 2 close to the flat gasket 3; a part of the flat gasket 3 is suitable for being arranged in the receiving groove 12; wherein there is at least one sealing portion 4; the sealing portion 4 is arranged on one side of the flat gasket 3.
[0030] When dealing with the sealing of the flat gasket 3, the present solution has a sealing portion 4 on the flat gasket 3, which abuts against the first tooling 1 or the second tooling 2 through the sealing portion 4, so that the sealing between the first tooling 1 and the second tooling 2 is better, and the flat gasket 3 is arranged in the receiving groove 12, so as to prevent leakage caused by deformation of the sealing plane of the flat gasket 3 under high pressure, thereby meeting the sealing effect under high pressure.
[0031] It should be noted that, in the present scheme, the first tooling 1 and the second tooling 2 are a pressure sensor and a pressure measuring adapter, the pressure adapter is sleeved on the outside of the pressure sensor, the pressure sensor and the pressure measuring adapter are connected by threads, wherein flow channels are arranged inside the pressure sensor and the pressure measuring adapter, the flow channels inside the pressure sensor and the pressure measuring adapter are connected with the pressure measuring conduit, thereby realizing the pressure measuring function, wherein there will be a gap between the planes where the pressure sensor and the pressure measuring adapter abut against each other, and this gap is a gas diffusion channel, in order to ensure the sealing between the pressure sensor and the pressure measuring adapter in the related technology, an ordinary gasket is arranged between the pressure sensor and the pressure measuring adapter, the ordinary gasket is generally a circular thin sheet, and the gas diffusion channel is blocked by compression deformation of the ordinary gasket, but under high pressure, the surface of the ordinary gasket will deform to a certain extent, and at this time, the elasticity of the ordinary gasket is difficult to compensate for the deformation caused by the high pressure, resulting in leakage.
[0032] In one embodiment, the sealing part 4 has one. As an alternative implementation, the number of the sealing parts 4 can be reasonably increased according to the gasket size or sealing requirements. The more the number of the sealing parts 4 is, the better the sealing effect is.
[0033] like Figure 2 As shown, in one embodiment, the sealing portion 4 includes a first sealing thorn 41 and a second sealing thorn 42 ; the first sealing thorn 41 is arranged on a first side of the flat gasket 3 , and the second sealing thorn 42 is arranged on a second side of the flat gasket 3 .
[0034] It should be noted that the first side surface of the flat gasket 3 is the side surface close to the first tooling 1 , and the second side surface is the side surface close to the second tooling 2 .
[0035] It should be noted that the flat gasket 3 can be provided with the first sealing thorn 41 or the second sealing thorn 42 alone, and the sealing effect can be increased by adding the first sealing thorn 41 or the second sealing thorn 42. However, in this solution, the first sealing thorn 41 and the second sealing thorn 42 are respectively provided on both sides of the flat gasket 3, thereby increasing the sealing effect on both sides of the flat gasket 3. It should be noted that compared with the case where the first sealing thorn 41 or the second sealing thorn 42 is provided alone on one side, the sealing effect is better when the first sealing thorn 41 and the second sealing thorn 42 are provided on both sides.
[0036] It should be noted that the first sealing thorn 41 and the second sealing thorn 42 are suitable for abutting against the first tooling 1 and the second tooling 2 respectively.
[0037] In one embodiment, the cross-section of the first sealing thorn 41 and the second sealing thorn 42 is triangular. In this solution, the cross-section of the first sealing thorn 41 and the second sealing thorn 42 is designed to be triangular, and the triangular cross-sectional structure has the advantage of being easy to manufacture.
[0038] It should be noted that the cross-sections of the first sealing thorn 41 and the second sealing thorn 42 may also be other shapes, such as semicircular or square. In this embodiment, the cross-sections are designed to be triangular for the convenience of production.
[0039] In this embodiment, the vertex angle of the triangular first sealing thorn 41 or the second sealing thorn 42 is 60 degrees. The height of the first sealing thorn 41 and the second sealing thorn 42 is 0.2mm-0.4mm. Specifically, the height of the first sealing thorn 41 and the second sealing thorn 42 is 0.3mm.
[0040] In one embodiment, a first groove 11 suitable for abutting and connecting with the first sealing thorn 41 is provided on a side of the first tooling 1 close to the flat gasket 3 ; a second groove 21 suitable for abutting and connecting with the second sealing thorn 42 is provided on a side of the second tooling 2 close to the flat gasket 3 .
[0041] It should be noted that, in order to further enhance the sealing effect, the first groove 11 and the second groove 21 are connected with the first sealing thorn 41 and the second sealing thorn 42 to block the gas diffusion channel to the maximum extent.
[0042] In one embodiment, the flat gasket 3 is integrally formed with the sealing portion 4. This solution has the advantages of low cost and high quality of finished products through the integral molding method.
[0043] In one embodiment, the material of the flat gasket 3 and the sealing part 4 in this solution is copper, and copper metal has the advantages of strong ductility and corrosion resistance.
[0044] like Figure 3 and Figure 4 As shown, in one embodiment, the receiving groove 12 is arranged on a side of the first tooling 1 close to the flat gasket 3 .
[0045] It should be noted that, as an alternative implementation, the receiving groove 12 may also be provided on a side of the second tooling 2 close to the flat gasket 3 , or the receiving groove 12 may be provided on both the first tooling 1 and the second tooling 2 .
[0046] In one embodiment, the first groove 11 is disposed at the bottom of the receiving groove 12. It should be noted that in this solution, the depth of the receiving groove 12 is 0.8 mm.
[0047] It should be noted that the width of the receiving groove 12 is the same as that of the flat gasket 3 , and the flat gasket 3 is the same as that of the receiving groove 12 , so the flat gasket 3 is snap-fitted with the receiving groove 12 to ensure that the position of the flat gasket 3 will not shift during use.
[0048] It should be noted that, as an alternative embodiment, the first sealing thorn 41 and the second sealing thorn 42 can also be respectively arranged on the first tooling 1 and the second tooling 2, and simultaneously, the first groove 11 and the second groove 21 are respectively arranged on the first side surface and the second side surface of the flat gasket 3.
[0049] It should be noted that, for the original gasket sealing form, in the group below 10MPa, there was no leakage in the 6 test groups (leak detection by soap bubble method, the same below), at 10MPa, there were 4 leakages in the 8 test groups, at 15MPa, there were 2 leakages in the 3 test groups, and at 23MPa, there were all leakages in the 3 test groups.
[0050] With the improved sealing form, there was no leakage in the above 20 test groups, and no leakage in the 24h retest.
[0051] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A sealing structure, characterized in that: include: A first tool (1); A second tool (2) is arranged on one side of the first tool (1); A flat gasket (3) adapted to be arranged between the first tooling (1) and the second tooling (2); A receiving groove (12) is provided on one side of the first tooling (1) and / or the second tooling (2) close to the flat gasket (3); a portion of the flat gasket (3) is suitable for being arranged in the receiving groove (12); The sealing part (4) has at least one sealing part; the sealing part (4) is arranged on one side of the flat gasket (3), and the sealing part (4) is suitable for abutting against the first tooling (1) and / or the second tooling (2).
2. The sealing structure according to claim 1, characterized in that: The sealing portion (4) has one.
3. The sealing structure according to claim 2, characterized in that: The sealing portion (4) comprises a first sealing thorn (41) and a second sealing thorn (42); the first sealing thorn (41) is arranged on a first side surface of the flat gasket (3), and the second sealing thorn (42) is arranged on a second side surface of the flat gasket (3).
4. The sealing structure according to claim 3, characterized in that: The cross-sections of the first sealing thorn (41) and the second sealing thorn (42) are triangular.
5. The sealing structure according to claim 4, characterized in that: A first groove (11) suitable for abutting and connecting with the first sealing thorn (41) is provided on a side of the first tooling (1) close to the flat gasket (3); and a second groove (21) suitable for abutting and connecting with the second sealing thorn (42) is provided on a side of the second tooling (2) close to the flat gasket (3).
6. The sealing structure according to any one of claims 1 to 5, characterized in that: The flat gasket (3) and the sealing portion (4) are integrally formed.
7. The sealing structure according to claim 1, characterized in that: The flat gasket (3) and the sealing part (4) are made of copper.
8. The sealing structure according to claim 1, characterized in that: The receiving groove (12) is arranged on a side of the first tooling (1) close to the flat gasket (3).
9. The sealing structure according to claim 5, characterized in that: The first groove (11) is arranged at the bottom of the accommodating groove (12).
10. The sealing structure according to claim 3, characterized in that: The height of the first sealing thorn (41) and the second sealing thorn (42) is 0.2 mm-0.4 mm.