CN104390009A - Flat gasket sealing structure - Google Patents
Flat gasket sealing structure Download PDFInfo
- Publication number
- CN104390009A CN104390009A CN201410715794.XA CN201410715794A CN104390009A CN 104390009 A CN104390009 A CN 104390009A CN 201410715794 A CN201410715794 A CN 201410715794A CN 104390009 A CN104390009 A CN 104390009A
- Authority
- CN
- China
- Prior art keywords
- flat gasket
- flat
- top cover
- gasket
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a flat gasket sealing structure comprising a tube end, a metal flat gasket, a top cap and a main bolt. The main bolt penetrates the top cap. The face, in contact with the tube end, of the top cap is a stepped face. The metal flat gasket is arranged on the stepped face. The top of the main bolt is provided with a main nut. The flat gasket sealing structure is simple in structure; under the action of pre-tightening bolt force, the metal flat gasket is deformed to fill an even part of a sealing face, and the sealing requirement is met. The metal flat gasket needs to be as close as possible to the inner wall of a tube so that total pressure of a medium upon the top cap is reduced, the diameter of the main bolt is reduced and the size of a flange is reduced. The flat gasket sealing structure is convenient to manufacture and mount and is suitable for devices with small diameter (less than 800mm), pressure less than 32MPa and temperature lower than 200 DEG C.
Description
Technical field
The present invention relates to fastening sealing structure field, particularly relate to a kind of flat gasket structure.
Background technique
In chemical production equipment, need Cylinder and end socket top cover to connect, and need sealing.Traditional sealing configuration both is connected with a screw, and centre adds nonmetallic gasket and fixes with nut.But such sealing only controls the fastening structure of make-up torque, exist when repeating handling cylinder head cover and seal ring distortion can be caused even to rupture, so that the technological deficiency of sealing difference.
Summary of the invention
The present invention, in order to overcome the deficiency of above-mentioned technical problem, provides a kind of flat gasket structure, can solve the problems of the technologies described above completely.
The technological scheme solved the problems of the technologies described above is as follows:
A kind of flat gasket structure, comprise barrel end, flat metallic gasket, top cover and kingbolt, described kingbolt, through top cover, the surface of contact of top cover and barrel end is provided with trapezoidal faces, described flat metallic gasket is arranged in trapezoidal faces, and the top of described kingbolt is provided with mother nut.
The sealing surface of described barrel end offers the groove of 2 ~ 3 triangular-sections.
The degree of depth and the width of described groove are 1mm.
Described flat metallic gasket and ditch slot fit.
Described flat metallic gasket and the sealing surface of barrel end are plane-plane contacts.
Described top cover and mother nut surface of contact are also provided with packing ring.
Structure of the present invention is simple, by the effect of pretension bolt power, pad is deformed and fills up sealing surface injustice place, to reach the requirement of sealing.The position of flat gasket needs as far as possible near cylinder inboard wall, to reduce the size of medium to the total pressure of top cover, the diameter of kingbolt and flange.For avoiding pad to flow laterally, pad should be put with trapezoidal faces, for improving sealability, needs on flat gasket face, offer 2 ~ 3 leg-of-mutton grooves, to be located by flat gasket.Such sealing manufacture, easy for installation, be suitable for minor diameter (being less than 800mm), pressure lower than 32MPa, temperature lower than on the equipment of 200 DEG C.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention;
Fig. 2 is A place enlarged view;
Embodiment
A kind of flat gasket structure as shown in Figure 1, comprise barrel end 5, flat metallic gasket 6, top cover 3 and kingbolt 4, described kingbolt 4 is through top cover 3, top cover 3 and the surface of contact of barrel end 5 are provided with trapezoidal faces, described flat metallic gasket 6 is arranged in trapezoidal faces, and the top of described kingbolt 4 is provided with mother nut 1.The sealing surface of described barrel end 5 offers the groove of 1 ~ 4 triangular-section.The degree of depth and the width of described groove are 1mm.Described flat metallic gasket 6 and ditch slot fit.Described flat metallic gasket 6 is plane-plane contacts with the sealing surface of barrel end 5.Described top cover 3 and mother nut 1 surface of contact are also provided with packing ring 2.
Structure of the present invention is simple, by the effect of pretension bolt power, pad is deformed and fills up sealing surface injustice place, to reach the requirement of sealing.The position of flat gasket needs as far as possible near cylinder inboard wall, to reduce the size of medium to the total pressure of top cover, the diameter of kingbolt and flange.For avoiding pad to flow laterally, pad should be put with trapezoidal faces, for improving sealability, needs on flat gasket face, offer 2 ~ 3 leg-of-mutton grooves, to be located by flat gasket.Such sealing manufacture, easy for installation, be suitable for minor diameter (being less than 800mm), pressure lower than 32MPa, temperature lower than on the equipment of 200 DEG C.
Claims (6)
1. a flat gasket structure, comprise barrel end, flat metallic gasket, top cover and kingbolt, it is characterized in that, described kingbolt is through top cover, the surface of contact of top cover and barrel end is provided with trapezoidal faces, described flat metallic gasket is arranged in trapezoidal faces, and the top of described kingbolt is provided with mother nut.
2. a kind of flat gasket structure according to claim 1, is characterized in that, the sealing surface of described barrel end offers the groove of 1 ~ 4 triangular-section.
3. a kind of flat gasket structure according to claim 1, is characterized in that, the degree of depth and the width of described groove are 1mm.
4. a kind of flat gasket structure according to claim 1, is characterized in that, described flat metallic gasket and ditch slot fit.
5. a kind of flat gasket structure according to claim 1, is characterized in that, described flat metallic gasket and the sealing surface of barrel end are plane-plane contacts.
6. a kind of flat gasket structure according to claim 1, is characterized in that, described top cover and mother nut surface of contact are also provided with packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715794.XA CN104390009A (en) | 2014-11-29 | 2014-11-29 | Flat gasket sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715794.XA CN104390009A (en) | 2014-11-29 | 2014-11-29 | Flat gasket sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390009A true CN104390009A (en) | 2015-03-04 |
Family
ID=52607952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410715794.XA Pending CN104390009A (en) | 2014-11-29 | 2014-11-29 | Flat gasket sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156338A (en) * | 2015-09-25 | 2015-12-16 | 珠海格力电器股份有限公司 | Self-priming water pump and water dispenser and humidifier provided with same |
-
2014
- 2014-11-29 CN CN201410715794.XA patent/CN104390009A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156338A (en) * | 2015-09-25 | 2015-12-16 | 珠海格力电器股份有限公司 | Self-priming water pump and water dispenser and humidifier provided with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |