CN204459313U - Clamp band type DRV - Google Patents
Clamp band type DRV Download PDFInfo
- Publication number
- CN204459313U CN204459313U CN201520094511.4U CN201520094511U CN204459313U CN 204459313 U CN204459313 U CN 204459313U CN 201520094511 U CN201520094511 U CN 201520094511U CN 204459313 U CN204459313 U CN 204459313U
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- CN
- China
- Prior art keywords
- valve body
- band type
- clamp band
- upstream face
- face boss
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Abstract
Clamp band type DRV, comprises in the valve body of interior hollow, valve body and has spool, and described spool comprises upstream face boss and connected poppet shaft, and described poppet shaft is provided with guide sleeve, and described valve body is by closely-pitched compact siro spinning technology one guide cover; Be connected by guide rod between described guide sleeve with described guide cover; Described poppet shaft is arranged with spring, and described spring is between described guide sleeve and described upstream face boss; Described valve body upper and lower end is equipped with ready-packaged joint.The inner chamber body surface integral of described valve body is circular arc camber.Described spool upstream face boss outer surface is circular arc camber or is the conical surface.The large runner of the utility model latus rectum is unobstructed, and resistance is little, good seal performance, does not have water hammer and sound, non-corrosive during closedown, suitable horizontal and vertical installation, the characteristics such as the life-span is long.And easy for installation, be convenient to maintain and replace.
Description
[technical field]
The utility model belongs to the water pump supercharging outlet conduit upper check valve being applied to building water supply, food service industry, is specifically related to a kind of clamp band type DRV.
[background technique]
Current domestic construction feedwater, the safety check of the exit of pump of food service industry mainly contains DRV, damping check valve, Wafer Check Valves, all there is following shortcoming in various degree: 1, latus rectum is little; 2, runner has some setbacks, resistance is large; 3, poor sealing performance; Water bell or the sound is had when 4, closing; 5, the life-span is short; 6, horizontal installation capability is poor.
[summary of the invention]
Technical problem to be solved in the utility model is to provide a kind of high-performance, lower resistance, clamp band type DRV easy for installation.
The utility model is achieved in that
Clamp band type DRV, comprises in the valve body of interior hollow, valve body and has spool, and described spool comprises upstream face boss and connected poppet shaft, and described poppet shaft is provided with guide sleeve, and described valve body is by closely-pitched compact siro spinning technology one guide cover; Be connected by guide rod between described guide sleeve with described guide cover; Described poppet shaft is arranged with spring, and described spring is between described guide sleeve and described upstream face boss; The inner chamber body surface integral of described valve body is circular arc camber; Described valve body upper and lower end is equipped with ready-packaged joint.
Further, described spool upstream face boss outer surface is circular arc camber.
Further, described spool upstream face boss outer surface is the conical surface.
Further, described guide rod caves in described valve core cavity body direction.
Further, described guide rod cross section ovalize.
Further, described poppet shaft end is hemispherical.
Further, described guide sleeve inwall is a fastening plastic bushing also, and this plastic bushing end is exposed outside described guide sleeve.
Further, described spring is tapered, and the little head end of this spring is sheathed on plastic bushing, and this spring stub end contacts with the internal surface of described upstream face boss.
Further, the outward edge of described upstream face boss inlays a sealing gasket, and sealing pad and described upstream face boss outer surface smoother are excessive, in arc surface.
Further, described valve body and described guide cover joint are provided with a seal ring.
The utility model has the advantage of: the large runner of latus rectum is unobstructed, and resistance is little, good seal performance, during closedown, there is no water hammer and sound, suitable horizontal and vertical installation, the characteristics such as the life-span is long.Convenient installation, easy to maintenance.
[accompanying drawing explanation]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is valve body plan view of the present utility model.
Fig. 2 is that in the utility model, valve body and spool are the generalized section of closed condition.
Fig. 3 is that in the utility model, valve body and spool are the generalized section of full-gear.
Fig. 4 is sectional view of the present utility model.
[embodiment]
Please refer to Fig. 1 to Fig. 4, clamp band type DRV, comprises in the valve body 1 of interior hollow, valve body 1 and has spool, and described spool comprises diversion face boss 21 and connected poppet shaft 22, described poppet shaft 22 is provided with guide sleeve 3, and described valve body 1 is by closely-pitched compact siro spinning technology one guide cover 4; Be connected by guide rod 5 between described guide sleeve 3 with described guide cover 4; Described poppet shaft 22 is arranged with spring 6, and described spring 6 is between described guide sleeve 3 and described upstream face boss 21; The inner chamber body surface 11 of described valve body 1 is overall in circular arc camber, to reduce hydraulic loss.Described valve body 1 upper and lower end is equipped with ready-packaged joint 9, and clamp band type can be adopted to install, easy for installation, is convenient to maintain and replace.
Described spool upstream face boss 21 outer surface 211 is in circular arc camber or in the conical surface, and poppet shaft 22 end 23, equally can to reduce hydraulic loss in hemispherical.
The valve body 1 contacted with water, spool, water outlet side spool support all adopt SUS304 stainless steel.
Described guide rod 5 caves in described valve body 1 inner chamber body direction, to increase the area of safety check inner chamber flow cross-section everywhere.
Described guide rod 5 cross section ovalize, oval length direction is arranged along water (flow) direction to reduce resistance.
Described guide sleeve 3 inwall is a fastening plastic bushing 7 also, and this plastic bushing 7 end is exposed outside described guide sleeve 3, has well main positive leading role to spool, and the not only suitable equally horizontal installation of suitable vertical installation, there will not be the mobile phenomenons that have some setbacks such as jam.
Described spring 6 is tapered, and the little head end of this spring 6 is sheathed on plastic bushing 7, and this spring 6 stub end contacts with the internal surface of described upstream face boss 22.During spool standard-sized sheet, volute spring 6 is compressed into one and is similar to closely knit taper, can effectively prevent current from perturbing, favourable minimizing current loss.
The outward edge of described upstream face boss 21 inlays a sealing gasket 212, and sealing pad 212 is excessive with described upstream face boss 21 outer surface smoother, in arc surface.Sealing gasket 212 closely cooperates with water surface boss 21 outer surface conical surface or arc surface and seamlessly transits, water outlet edge presents circular arc, to reduce hydraulic loss, sealing gasket 212 circumferential perimeter is identical with upstream face boss 21 external diameter, makes sealing gasket 212 and upstream face boss 21 form one.
Described valve body 1 is provided with an O RunddichtringO 8 with described guide cover 4 joint.The same end face that guide cover 4 and valve body 1 can keep two parts to form after locking is smooth, the sealing of water outlet end face when installing in order to safety check, valve body 1 is connected fastening with guide cover 4 by closely-pitched, and ensures two member lumens flow surface joint smooth and seamless gaps or step.
Valve body 1 is smooth smooth and easy with rubber surface of contact, does not adopt concavo-convex sealing configuration.
Check valve adopts and connects folder mode, allows vertical and horizontal installation.
The large runner of the utility model latus rectum is unobstructed, and resistance is little, good seal performance, does not have water hammer and sound, non-corrosive during closedown, suitable horizontal and vertical installation, the characteristics such as the life-span is long.And easy for installation, be convenient to maintain and replace.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (10)
1. clamp band type DRV, it is characterized in that: comprise in the valve body of interior hollow, valve body and there is spool, described spool comprises upstream face boss and connected poppet shaft, and described poppet shaft is provided with guide sleeve, and described valve body is by closely-pitched compact siro spinning technology one guide cover; Be connected by guide rod between described guide sleeve with described guide cover; Described poppet shaft is arranged with spring, and described spring is between described guide sleeve and described upstream face boss; The inner chamber body surface integral of described valve body is circular arc camber; Described valve body upper and lower end is equipped with ready-packaged joint.
2. clamp band type DRV as claimed in claim 1, is characterized in that: described spool upstream face boss outer surface is circular arc camber.
3. clamp band type DRV as claimed in claim 1, is characterized in that: described spool upstream face boss outer surface is the conical surface.
4. clamp band type DRV as claimed in claim 1, is characterized in that: described guide rod caves in described valve core cavity body direction.
5. clamp band type DRV as claimed in claim 1, is characterized in that: described guide rod cross section ovalize.
6. clamp band type DRV as claimed in claim 1, is characterized in that: described poppet shaft end is hemispherical.
7. clamp band type DRV as claimed in claim 1, it is characterized in that: described guide sleeve inwall is a fastening plastic bushing also, this plastic bushing end is exposed outside described guide sleeve.
8. clamp band type DRV as claimed in claim 7, it is characterized in that: described spring is tapered, the little head end of this spring is sheathed on plastic bushing, and this spring stub end contacts with the internal surface of described upstream face boss.
9. clamp band type DRV as claimed in claim 1, is characterized in that: the outward edge of described upstream face boss inlays a sealing gasket, sealing pad and described upstream face boss outer surface smoother excessively, in arc surface.
10. clamp band type DRV as claimed in claim 1, is characterized in that: described valve body and described guide cover joint are provided with a seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094511.4U CN204459313U (en) | 2015-02-10 | 2015-02-10 | Clamp band type DRV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520094511.4U CN204459313U (en) | 2015-02-10 | 2015-02-10 | Clamp band type DRV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459313U true CN204459313U (en) | 2015-07-08 |
Family
ID=53666198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520094511.4U Active CN204459313U (en) | 2015-02-10 | 2015-02-10 | Clamp band type DRV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533802A (en) * | 2018-05-24 | 2018-09-14 | 武汉船用机械有限责任公司 | A kind of big-flow high-pressure check valve peculiar to vessel |
-
2015
- 2015-02-10 CN CN201520094511.4U patent/CN204459313U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533802A (en) * | 2018-05-24 | 2018-09-14 | 武汉船用机械有限责任公司 | A kind of big-flow high-pressure check valve peculiar to vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |