CN214533977U - Combined pad suitable for connecting flange with diameter-reduced double-end stud in middle - Google Patents
Combined pad suitable for connecting flange with diameter-reduced double-end stud in middle Download PDFInfo
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- CN214533977U CN214533977U CN202023100416.0U CN202023100416U CN214533977U CN 214533977 U CN214533977 U CN 214533977U CN 202023100416 U CN202023100416 U CN 202023100416U CN 214533977 U CN214533977 U CN 214533977U
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- gasket
- gasket body
- flange
- reduced diameter
- stud flange
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Abstract
The utility model discloses a combined gasket suitable for a middle reducing double-end stud connecting flange, which relates to the technical field of gaskets and comprises a gasket body, wherein the outer ring of the gasket body is provided with a section of arc-shaped gap, the gasket body is provided with an annular sealing surface, and a sealing layer is arranged on the sealing surface; the problem that a gasket which is used for connecting a flange sleeve by a double-end stud with a diameter reduced in the middle is difficult to mount in place after being detached is solved.
Description
Technical Field
The utility model relates to a gasket technical field, especially a composite pad that reducing stud flange was used in middle of being fit for.
Background
The matched bolts adopted by the inlet and outlet flanges of the diaphragm chamber of the TZPM 2000 type piston diaphragm pump produced by the Netherlands GEHO company are middle reducing studs, the diameter of the middle of the stud is smaller than that of the two ends of the stud, so that the gasket matched with the inlet and outlet flanges of the diaphragm chamber is narrow for the convenience of installation, and the gasket is difficult to install in place after being detached due to the special structure of the diaphragm pump equipment. And the diaphragm chamber advances, the design of outlet flange sealed face itself is narrower, the width of gasket and diaphragm chamber advance, the sealed face width of outlet flange equals, in case the installation of gasket is not in place, will cause gasket and diaphragm chamber to advance, the effective contact part of the sealed face of outlet flange diminishes, and then lead to piston diaphragm pump operation in-process easily to appear leaking, cause and spout the material, if the diaphragm chamber advances, the condition of spouting the material appears in the outlet flange, except can influencing the operation of piston diaphragm pump, still because the pressure of piston diaphragm pump operation is high, pump material medium temperature is high, caustic alkali concentration is high and sodium aluminate solution content is high, can cause the potential safety hazard to production and maintenance personnel.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the combined gasket suitable for the middle reducing double-end stud connecting flange is provided, and the problem that the gasket matched with the middle reducing double-end stud connecting flange is difficult to mount in place after being detached is solved.
In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a combination pad that suitable middle undergauge stud flange was used includes the gasket body, the outer lane of gasket body is equipped with one section convex breach, the gasket body is equipped with annular sealed face, be equipped with the sealing layer on the sealed face.
Further, the radian of the notch is 120-150 degrees.
Further, the depth of the notch is 1-2 mm.
Further, the maximum radius of the outer ring of the gasket body is 0.5-1mm smaller than the maximum radius of the inner ring surrounded by the stud.
Further, the gasket body is made of 304 stainless steel.
Further, the inner diameter of the sealing surface is equal to the inner diameter of the inner ring of the gasket body.
Further, the sealing layer is made of flexible graphite or polytetrafluoroethylene materials.
Further, the cross section of the sealing surface and the sealing layer are in a mutually matched sawtooth shape.
Furthermore, two sealing surfaces are arranged and are symmetrically arranged on the upper surface and the lower surface of the gasket body respectively.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses a composite pad is when using, one side that will have the breach up, because the existence of breach, the minimum external diameter of composite pad is less than the minimum external diameter that stud encloses the wound circle, composite pad can easily put into flange's stud and enclose into the wound circle, after composite pad puts into, under the gravity of self, composite pad's lower part is pasted on stud's middle telescopic link, composite pad this moment just installs in place, simple to operate is swift, and the sealing face perfect adaptation of sealing layer and flange, ensure sealed good, be difficult for leaking.
Drawings
FIG. 1 is a schematic diagram of a composite gasket for a medium reducing stud flange according to the present invention;
FIG. 2 is a schematic cross-sectional view of a composite gasket suitable for use in a medium reducing stud flange according to the present invention;
wherein, 1-gasket body, 2-gap, 3-sealing layer and 4-sealing surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a composite gasket suitable for a flange with a reduced-diameter stud in the middle comprises a gasket body 1, wherein the gasket body 1 is in a ring plate shape, and the gasket body 1 is made of 304 stainless steel. The outer ring of the gasket body 1 is provided with a section of arc-shaped gap 2, the radian of the gap 2 is 120-150 degrees, the depth of the gap 2 is 1-2mm, the minimum outer diameter of the gasket body 1 can be reduced through the design of the gap 2, the combined gasket is conveniently placed in a ring surrounded by the stud of the connecting flange, the maximum radius of the outer ring of the gasket body 1 is smaller than the radius of an inner ring surrounded by the stud by 0.5-1mm, and the combined gasket can be easily installed in place within the tolerance allowable range.
When the gasket is used, one side with the notch 2 faces upwards, due to the existence of the notch 2, the minimum outer diameter of the combined gasket is smaller than the minimum outer diameter of a ring surrounded by the stud, the combined gasket can be easily placed into the ring surrounded by the stud of the connecting flange, after the combined gasket is placed, the lower part of the combined gasket is attached to a middle telescopic rod of the stud under the gravity of the combined gasket, and the maximum radius of the outer ring of the gasket body 1 is 0.5-1mm smaller than the radius of the inner ring surrounded by the stud, so that the combined gasket at the moment is just installed in place, the installation is convenient and rapid, the sealing layer 3 and the sealing surface 4 of the flange are perfectly combined, good sealing is ensured, and leakage is not easy to occur.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (8)
1. The utility model provides a composite pad that reducing stud flange was used in middle of being fit for which characterized in that: the gasket comprises a gasket body, wherein an outer ring of the gasket body is provided with a section of arc-shaped notch, the gasket body is provided with an annular sealing surface, and a sealing layer is arranged on the sealing surface.
2. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the radian of the notch is 120-150 degrees.
3. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the depth of the notch is 1-2 mm.
4. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the gasket body is made of 304 stainless steel.
5. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the inner diameter of the sealing surface is equal to the inner diameter of the inner ring of the gasket body.
6. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the sealing layer is made of flexible graphite or polytetrafluoroethylene materials.
7. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the cross section of the sealing surface and the sealing layer are in a mutually matched sawtooth shape.
8. The gasket of claim 1 adapted for use with a reduced diameter intermediate stud flange, wherein: the two sealing surfaces are symmetrically arranged on the upper surface and the lower surface of the gasket body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023100416.0U CN214533977U (en) | 2020-12-21 | 2020-12-21 | Combined pad suitable for connecting flange with diameter-reduced double-end stud in middle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023100416.0U CN214533977U (en) | 2020-12-21 | 2020-12-21 | Combined pad suitable for connecting flange with diameter-reduced double-end stud in middle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214533977U true CN214533977U (en) | 2021-10-29 |
Family
ID=78295351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023100416.0U Active CN214533977U (en) | 2020-12-21 | 2020-12-21 | Combined pad suitable for connecting flange with diameter-reduced double-end stud in middle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214533977U (en) |
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2020
- 2020-12-21 CN CN202023100416.0U patent/CN214533977U/en active Active
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