CN204647712U - A kind of blank flange - Google Patents
A kind of blank flange Download PDFInfo
- Publication number
- CN204647712U CN204647712U CN201520333206.6U CN201520333206U CN204647712U CN 204647712 U CN204647712 U CN 204647712U CN 201520333206 U CN201520333206 U CN 201520333206U CN 204647712 U CN204647712 U CN 204647712U
- Authority
- CN
- China
- Prior art keywords
- chassis
- blank flange
- sealing surface
- circular groove
- joint part
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of blank flange, its drip irrigation device is the chassis comprising round shape, described chassis offers through hole symmetrically, the center on described chassis raises up and forms the end-to-end joint part of round shape, described end-to-end joint part forms sealing surface away from the end face on chassis, described sealing surface offers the circular groove for installing sealing gasket.The utility model, by offering circular groove on sealing surface, reaching convenient object of installing sealing gasket, just can be in place by sealing gasket easily like this when assembling.
Description
Technical field
The utility model relates to a kind of flange field, and more particularly, it relates to a kind of blank flange.
Background technique
Blank flange is also called blank flange, and rectification of name is called blind flange, and being middle flange not with holes, is a kind of Connecting format of flange, for sealing pipe stopper.In industries such as oil, chemical industry, metallurgy, electric power, boats and ships and machineries, blank flange plays isolation, cutting out pipeline, is the same with end socket, pipe cap, welding plug role.Blank flange sealing is a kind of dismountable seal arrangement, and the sealing of end socket does not prepare to open again.Due to blank flange good seal performance, for needing completely isolated system, generally all as reliable isolating means.
Application number be 201110253208.0 Chinese invention patent disclose a kind of blank flange, comprise the chassis evenly offering some through holes, the center position on chassis is fixedly connected with the plug of stainless steel.It strengthens its corrosion resistance by the plug be made up of carbon steel material fixing on chassis, meet the requirement of strength of blank flange, but inventor is after studying this patent carefully, in conjunction with prior art, find that it still exists certain deficiency: owing to needing when assembling to ensure the sealing between blank flange and pipeline, therefore often to fix a sealing gasket on sealing surface, but the sealing surface due to this blank flange is plane, and blank flange and sealing gasket are the structures be separated from each other, sealing gasket is difficult to be in place, when particularly having medium in pipeline, therefore inventor thinks and is necessary that the blank flange to above-mentioned improves.
Model utility content
For the deficiency that prior art exists, main purpose of the present utility model is to provide a kind of blank flange that can be easy to sealing gasket to be installed on chassis.
For realizing above-mentioned main purpose, the utility model adopts following technological scheme: a kind of blank flange, comprise the chassis of round shape, described chassis offers through hole symmetrically, the center on described chassis raises up and forms the end-to-end joint part of round shape, described end-to-end joint part forms sealing surface away from the end face on chassis, described sealing surface offers the circular groove for installing sealing gasket.
As preferably, all arrange in acute angle between the two side of described circular groove and sealing surface.
As preferably, the acute angle between the sidewall of described circular groove and sealing surface is 20 °-25 °.
As preferably, between the diapire of described circular groove and two side, between sealing surface and two side, all there is round and smooth structure.
As preferably, the side inward collapsible of described end-to-end joint part forms plane of inclination.
As preferably, described plane of inclination is connected with the surface smoothing on chassis.
As preferably, the inclination of described plane of inclination is 3 °-5 °.
The utility model hinge structure is compared to be had: by offering circular groove on sealing surface, reaching convenient object of installing sealing gasket, just can be in place by sealing gasket easily like this when assembling; And being obliquely installed of circular groove sidewall, then make when installing sealing gasket, the sidewall that can be tilted by these two plays the effect of a guiding, achieves the centering of sealing gasket, location efficiently, is more convenient for the installation between sealing gasket and blank flange.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model blank flange embodiment;
Fig. 2 is the A portion enlarged view of Fig. 1.
In figure: 1, chassis; 2, through hole; 3, end-to-end joint part; 4, sealing surface; 5, circular groove; 6, sidewall; 7, diapire; 8, fillet; 9, plane of inclination; α, acute angle.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model blank flange embodiment is described further.
A kind of blank flange, comprise chassis 1, chassis 1, in round shape, chassis 1 offers through hole 2 symmetrically, and through hole 2 is used to construction bolt, the center on chassis 1 to raise up formation end-to-end joint part 3 along the short transverse on chassis 1, this end-to-end joint part 3 is also in round shape, and concentric with chassis 1, and end-to-end joint part 3 forms a sealing surface 4 away from the end face on chassis 1, sealing surface 4 then offers circular groove 5, and this circular groove 5 is just used to install sealing gasket.By offering circular groove 5 on sealing surface 4, reaching convenient object of installing sealing gasket, just can easily sealing gasket be in place when assembling like this.
It should be noted that, the diameter of end-to-end joint part 3 is less than the distance of through hole 2 to chassis 1 center, doing so avoids the situation that circular groove 5 is communicated with through hole 2.
In above-described embodiment, can be optimized circular groove 5, all sharp angle α is made between sidewall 6 and sealing surface 4 by two of circular groove 5, as shown in Figure 2, like this when installing sealing gasket, the sidewall 6 that just can be tilted by these two plays the effect of a guiding, achieves the centering of sealing gasket, location efficiently, is more convenient for the installation between sealing gasket and blank flange.
Preferably the sharp angle α between the sidewall 6 of circular groove 5 and sealing surface 4 is controlled between 20 °-25 °, the convenient object of installing of sealing gasket can be realized like this, also can avoid because the acute angle between sidewall 6 and sealing surface 4 is too small, and make sealing gasket effectively cannot be full of whole circular groove 5, and then the situation of sealing can be affected to a certain extent.
In addition, can between the diapire 7 of circular groove 5 and two side 6, give round and smooth process respectively between sealing surface 4 and two side 6, make, between the diapire 7 of circular groove 5 and two side 6, between sealing surface 4 and two side 6, all there is a fillet 8, as shown in Figure 2, so both by fillet 8 between sealing surface 4 and two side 6, realization convenient installation sealing gasket, again can gap between the diapire 7 of circular groove 5 and two side 6 between the reduction sidewall 6 of fillet 8 and diapire 7, ensure that sealing gasket can effectively be full of circular groove 5, and then guarantee sealing.
Consider when mounted, end-to-end joint part 3 is needed to be installed in pipeline, therefore the side of end-to-end joint part 3 can be made the plane of inclination 9 of inward collapsible, as shown in Figure 2, such end-to-end joint part 3 just defines the round table-like structure that front end is little, rear end is large, the inclination of certain plane of inclination 9 is not easily excessive, preferably control between 3 °-5 °, thus when mounted, just can effectively utilize this difference to carry out plug injects in pipeline, and the plane of inclination 9 of that is drawing formula in by this can facilitate the installation between blank flange and pipeline.
In addition, also can making smooth connection formula between plane of inclination 9 and the surface on chassis 1, make to form a fillet 8 between the surface on plane of inclination 9 and chassis 1, such is arranged on the effect also playing reinforcement to a certain extent to the sealing between pipeline and end-to-end joint part 3.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a blank flange, comprise the chassis of round shape, described chassis offers through hole symmetrically, it is characterized in that: the center on described chassis raises up and forms the end-to-end joint part of round shape, described end-to-end joint part forms sealing surface away from the end face on chassis, described sealing surface offers the circular groove for installing sealing gasket.
2. blank flange according to claim 1, is characterized in that: all arrange in acute angle between the two side of described circular groove and sealing surface.
3. blank flange according to claim 2, is characterized in that: the acute angle between the sidewall of described circular groove and sealing surface is 20 °-25 °.
4., according to the arbitrary described blank flange of claim 1-3, it is characterized in that: between the diapire of described circular groove and two side, between sealing surface and two side, all there is round and smooth structure.
5. blank flange according to claim 1, is characterized in that: the side inward collapsible of described end-to-end joint part forms plane of inclination.
6. blank flange according to claim 5, is characterized in that: described plane of inclination is connected with the surface smoothing on chassis.
7. blank flange according to claim 5, is characterized in that: the inclination of described plane of inclination is 3 °-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333206.6U CN204647712U (en) | 2015-05-21 | 2015-05-21 | A kind of blank flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333206.6U CN204647712U (en) | 2015-05-21 | 2015-05-21 | A kind of blank flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647712U true CN204647712U (en) | 2015-09-16 |
Family
ID=54100463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520333206.6U Expired - Fee Related CN204647712U (en) | 2015-05-21 | 2015-05-21 | A kind of blank flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838537A (en) * | 2015-12-04 | 2017-06-13 | 潘珺珺 | A kind of stable type blind plate |
| CN106838532A (en) * | 2015-12-04 | 2017-06-13 | 潘珺珺 | A kind of blind plate for conveyance conduit |
-
2015
- 2015-05-21 CN CN201520333206.6U patent/CN204647712U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838537A (en) * | 2015-12-04 | 2017-06-13 | 潘珺珺 | A kind of stable type blind plate |
| CN106838532A (en) * | 2015-12-04 | 2017-06-13 | 潘珺珺 | A kind of blind plate for conveyance conduit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180521 |