CN219809253U - Bolt sealing structure - Google Patents
Bolt sealing structure Download PDFInfo
- Publication number
- CN219809253U CN219809253U CN202321484138.4U CN202321484138U CN219809253U CN 219809253 U CN219809253 U CN 219809253U CN 202321484138 U CN202321484138 U CN 202321484138U CN 219809253 U CN219809253 U CN 219809253U
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- sealing
- bolt
- nut
- connecting surface
- inner diameter
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- 238000007789 sealing Methods 0.000 title claims abstract description 147
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims 1
- 238000006213 oxygenation reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a bolt sealing structure which comprises a first connecting surface, a second connecting surface, a sealing cushion layer, a sealing bolt, a sealing gasket and a nut, wherein the sealing bolt penetrates through the first connecting surface, the second connecting surface and the sealing cushion layer and is locked through the nut; the sealing bolt comprises a bolt head and a stud, the stud comprises a smooth section and a bolt section, the smooth section is connected with the bolt head, and the sealing gasket is arranged on the smooth section. The sealing bolt has the advantages that the first connecting surface, the second connecting surface, the sealing cushion layer, the sealing bolt, the sealing gasket and the nut are combined to realize sealing of the bolt hole, and particularly the sealing bolt comprises a stud with a threaded section and a smooth section, the threaded section is matched with the nut to realize locking, and the smooth section is used for setting the sealing gasket to realize sealing.
Description
Technical Field
The utility model relates to the technical field of pressure-bearing sealing, in particular to a bolt sealing structure.
Background
Under the environment of thin air and low air pressure such as a plateau, workers from plain areas need to work and rest in the pressurizing and oxygenation building, and the existing pressurizing and oxygenation building is small in accommodating number and cannot meet the living use of a large number of workers. Therefore, in the plateau area, a large-scale assembled supercharging oxygenation building is researched, and the indoor air pressure of a house can be changed to form an indoor environment which is the same as that of a plain area, so that the building is a new subject of the current plateau assembled building. Sealing is one of the difficulties of the current large-scale assembled boosting and oxygenation building. After the large-scale assembled and pressurized oxygenation building is assembled at one time, the service life of the building is usually up to decades, so that the sealing performance of the template is particularly critical.
The assembled supercharging oxygenation building is mainly characterized in that a pressure-bearing panel is installed on a beam column framework through a bolt fastener, so that an indoor seal is formed into a seal building. Because the common bolt connection does not have tightness, the current assembled type pressurizing and oxygenation building mainly adopts an auxiliary sealing device to wrap the whole bolt indoors. The auxiliary sealing device mainly adopts the cover to seal, weld and wrap the tail part of the bolt and the nut, is complex in operation and high in cost, and is inconvenient to assemble and disassemble because the bolt and the nut are required to be welded after being installed. The auxiliary sealing device can also be used on the beam column, the sealing clamping seat is welded in advance at the position where the bolt is required to be screwed, when the second connecting surface is to be installed, the bolt is screwed after the nut is clamped by the clamping seat, but the sealing clamping seat also needs to be welded after a hole for placing the sealing clamping seat is processed, and the welding seam is polished and leveled, so that the cost is high.
In view of the foregoing, there is a need for a bolt seal structure for a pressure-bearing die plate to solve the problems in the prior art.
Disclosure of Invention
The utility model aims to provide a bolt sealing structure, which comprises the following specific technical scheme:
the bolt sealing structure comprises a first connecting surface, a second connecting surface, a sealing cushion layer, a sealing bolt, a sealing gasket and a nut, wherein the sealing bolt penetrates through the first connecting surface, the second connecting surface and the sealing cushion layer and is locked through the nut; the sealing bolt comprises a bolt head and a stud, the stud comprises a smooth section matched with the nut and a bolt section close to the bolt head, and the sealing gasket is arranged on the smooth section.
Further, the sealing gasket is a hollow cylinder comprising an inner diameter surface, an outer diameter surface and two shaft surfaces, a first sealing groove is formed in the inner diameter surface, a first sealing ring is arranged in the first sealing groove, a second sealing groove is formed in the shaft surface far away from the bolt head, and a second sealing ring is arranged in the second sealing groove.
Further, the inner diameter of the first sealing ring is 0.95-0.97 times of the outer diameter of the smooth section of the stud.
Further, the inner diameter of the second sealing ring is 0.95-0.97 times of the inner diameter of the second sealing groove.
Further, the first sealing ring and the second sealing ring are made of pure ethylene propylene diene monomer rubber.
Further, the sealing gasket is made of Q345 steel.
Further, the outer diameter of the thread section is 0.95-0.97 times of the outer diameter of the smooth section.
Further, a gasket is arranged on one side, close to the bolt head, of the nut.
Further, the first connecting surface is a beam column framework, and the second connecting surface is a pressure-bearing template.
The technical scheme of the utility model has the following beneficial effects:
(1) In the utility model, the first connecting surface, the second connecting surface, the sealing cushion layer, the sealing bolt, the sealing gasket and the nut are combined to realize the sealing of the bolt hole position, and especially the sealing bolt comprises a stud with a threaded section and a smooth section, the threaded section is matched with the nut to realize locking, and the smooth section is used for arranging the sealing gasket to realize sealing.
(2) The sealing gasket is a hollow cylinder comprising an inner diameter surface, an outer diameter surface and two shaft surfaces, wherein a first sealing groove is formed in the inner diameter surface, a first sealing ring is arranged in the first sealing groove, a second sealing groove is formed in the shaft surface far away from the bolt head, and a second sealing ring is arranged in the second sealing groove; the first sealing ring, the first sealing groove, the second sealing groove and the second sealing ring are matched to realize the axial and radial sealing of the sealing gasket.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of a bolt seal structure in a preferred embodiment of the present utility model;
FIG. 2 is a schematic view of the connection of the sealing bolt, sealing washer and nut of FIG. 1;
fig. 3 is a schematic view of the structure of the sealing gasket of fig. 2.
The sealing device comprises a 1-sealing bolt, a 1.1-bolt head, a 1.2-stud, a 1.21-threaded section, a 1.22-smooth section, a 2-sealing washer, a 2.1-first sealing groove, a 2.2-first sealing ring, a 2.3-second sealing groove, a 2.4-second sealing ring, a 3-nut, a 4-beam column framework, a 5-pressure-bearing template, a 6-sealing cushion layer and a 7-gasket.
Detailed Description
Embodiments of the utility model are described in detail below with reference to the attached drawings, but the utility model can be implemented in a number of different ways, which are defined and covered by the claims.
Examples:
referring to fig. 1 and 2, the present embodiment discloses a bolt sealing structure, which includes a sealing bolt 1, a sealing washer 2, a nut 3, a first connecting surface, a second connecting surface and a sealing cushion layer 6, wherein the sealing bolt 1 sequentially penetrates through the first connecting surface, the sealing cushion layer and the second connecting surface and is locked by the nut 3; the sealing bolt 1 comprises a bolt head 1.1 and a stud 1.2, the stud 1.2 comprises a threaded section 1.21 matched with a nut 3 and a smooth section 1.22 close to the bolt head 1.1, and the sealing washer 2 is arranged on the smooth section 1.22.
Further, the outer diameter of the thread segment 1.21 is smaller than the outer diameter of the smooth segment 1.22, which is advantageous for the assembly of the sealing gasket 2, and in this embodiment, the outer diameter of the thread segment 1.21 is 0.95-0.97 times the outer diameter of the smooth segment 1.22.
In this embodiment, the first connection surface is a beam-column framework 4, and the second connection surface is a pressure-bearing template 5.
Specifically, as shown in fig. 3, the sealing washer 2 is a hollow cylinder including an inner diameter surface, an outer diameter surface and two shaft surfaces, a first sealing groove 2.1 is arranged on the inner diameter surface, a first sealing ring 2.2 is arranged in the first sealing groove 2.1, a second sealing groove 2.3 is arranged on the shaft surface far away from the bolt head 1.1, and a second sealing ring 2.4 is arranged in the second sealing groove 2.3. The first sealing ring 2.2 can seal the radial direction of the sealing gasket 2, the second sealing ring 2.4 can seal the axial direction of the sealing gasket 2, and in the embodiment, the sealing bolt 1, the sealing gasket 2 and the nut 3 cooperate to seal the bolt holes on the beam column framework 4 and the pressure-bearing template 5. Further, in order to ensure the sealing effect of the first sealing ring 2.2 and the second sealing ring 2.4 on the sealing gasket 2, the inner diameter of the first sealing ring 2.2 is smaller than the outer diameter of the smooth section 1.22 of the stud 1.2, and the inner diameter of the second sealing ring 2.4 is smaller than the inner diameter of the second sealing groove 2.3. It should be noted that the diameter of the body of the first sealing ring 2.2 exceeds the depth of the first sealing groove 2.1, so that the first sealing ring 2.2 can be ensured to contact the smooth section 1.22; the diameter of the second sealing ring 2.4 body exceeds the depth of the second sealing groove 2.3, so that the second sealing ring 2.4 can be ensured to contact the pressure-bearing template 5.
Further, in this embodiment, the inner diameter of the first seal ring 2.2 is preferably 0.95-0.97 times the outer diameter of the smooth section 1.22 of the stud 1.2.
Further, in this embodiment, the inner diameter of the second seal ring 2.4 is preferably 0.95-0.97 times the inner diameter of the second seal groove 2.3.
Further, in this embodiment, the preferable materials of the first sealing ring 2.2 and the second sealing ring 2.4 are pure ethylene propylene diene monomer rubber. The pure ethylene propylene diene monomer has the advantages of high and low temperature resistance, weather resistance, corrosion resistance, long service life and the like.
Further, the material of the sealing gasket 2 is preferably Q345 steel in this embodiment. It should be noted that other materials with the same strength as the Q345 steel can be adopted in the present embodiment, and according to the actual pressure environment, materials with lower strength or higher strength can be replaced, and the material of the sealing gasket 2 is not limited in this embodiment.
Further, a washer 7 is arranged on the side of the nut 3 close to the bolt head 1.1.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The bolt sealing structure is characterized by comprising a sealing bolt (1), a sealing gasket (2), a nut (3), a first connecting surface, a second connecting surface and a sealing cushion layer (6), wherein the sealing bolt (1) sequentially penetrates through the first connecting surface, the sealing cushion layer and the second connecting surface and is locked through the nut (3); the sealing bolt (1) comprises a bolt head (1.1) and a stud (1.2), the stud (1.2) comprises a threaded section (1.21) matched with the nut (3) and a smooth section (1.22) close to the bolt head (1.1), and the sealing gasket (2) is arranged on the smooth section (1.22).
2. The bolt sealing structure according to claim 1, wherein the sealing washer (2) is a hollow cylinder comprising an inner diameter surface, an outer diameter surface and two shaft surfaces, a first sealing groove (2.1) is arranged on the inner diameter surface, a first sealing ring (2.2) is arranged in the first sealing groove (2.1), a second sealing groove (2.3) is arranged on the shaft surface far away from the bolt head (1.1), and a second sealing ring (2.4) is arranged in the second sealing groove (2.3).
3. The bolt sealing arrangement according to claim 2, characterized in that the inner diameter of the first sealing ring (2.2) is 0.95-0.97 times the outer diameter of the smooth section (1.22) of the stud (1.2).
4. The bolt sealing structure according to claim 2, wherein the second seal ring (2.4) has an inner diameter of 0.95-0.97 times the inner diameter of the second seal groove (2.3).
5. The bolt sealing structure according to claim 2, wherein the first sealing ring (2.2) and the second sealing ring (2.4) are made of pure ethylene propylene diene monomer rubber.
6. The bolt sealing structure according to claim 2, wherein the sealing washer (2) is made of Q345 steel.
7. Bolt sealing arrangement according to claim 1, characterized in that the thread segments (1.21) have an outer diameter which is 0.95-0.97 times the outer diameter of the smooth segments (1.22).
8. Bolt sealing arrangement according to claim 1, characterized in that the side of the nut (3) close to the bolt head (1.1) is provided with a gasket (7).
9. The bolt sealing structure according to any one of claims 1 to 8, wherein the first connection surface is a beam column skeleton (4), and the second connection surface is a pressure-bearing formwork (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321484138.4U CN219809253U (en) | 2023-06-12 | 2023-06-12 | Bolt sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321484138.4U CN219809253U (en) | 2023-06-12 | 2023-06-12 | Bolt sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219809253U true CN219809253U (en) | 2023-10-10 |
Family
ID=88208539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321484138.4U Active CN219809253U (en) | 2023-06-12 | 2023-06-12 | Bolt sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219809253U (en) |
-
2023
- 2023-06-12 CN CN202321484138.4U patent/CN219809253U/en active Active
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