CN206738705U - A kind of circumference normal plane decompression type multilayer sleeve - Google Patents
A kind of circumference normal plane decompression type multilayer sleeve Download PDFInfo
- Publication number
- CN206738705U CN206738705U CN201720515169.XU CN201720515169U CN206738705U CN 206738705 U CN206738705 U CN 206738705U CN 201720515169 U CN201720515169 U CN 201720515169U CN 206738705 U CN206738705 U CN 206738705U
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- circulation road
- sleeve
- layer sleeve
- around
- inner layer
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Abstract
The utility model discloses a kind of circumference normal plane decompression type multilayer sleeve, it includes an outer layer sleeve and at least one layer of inner layer sleeve being nested in outer layer sleeve, be evenly distributed with the outer circumference surface of every layer of inner layer sleeve it is a plurality of with it is at least one turnover right angle around circulation road, described in each ostium is provided with around one end of circulation road, the other end is provided with tap hole, the ostium around circulation road on the inner layer sleeve adjacent thereto of the tap hole around circulation road on every layer of inner layer sleeve is connected, outer layer sleeve is provided with the circular hole being connected around the ostium of circulation road on inner layer sleeve adjacent thereto.The utility model under same sleeve dimensions, can increase the series of multi-step pressure reduction, lift effect of easing stress, ensure valve safe operation.
Description
Technical field
It the utility model is related to valve field, and in particular to a kind of circumference normal plane decompression type multilayer sleeve.
Background technology
Shown in Figure 1, the multi-step pressure reduction along the radial direction of sleeve 1 is often taken in existing valve decompression.Limited in sleeve wall thickness
In the case of, tend not to accomplish enough decompression series, to reach actual effect of easing stress, to ensure the safe operation of valve.
Therefore, a kind of circumference normal plane decompression type multilayer sleeve is designed, under same size, increases the level of multi-step pressure reduction
Number, effect of easing stress is lifted, ensure valve safe operation, it is clear that there is positive realistic meaning.
The content of the invention
Goal of the invention of the present utility model is to provide a kind of circumference normal plane decompression type multilayer sleeve.
To achieve the above object of the invention, the technical solution adopted in the utility model is：A kind of circumference normal plane decompression type is more
Layer sleeve, it includes an outer layer sleeve and at least one layer of inner layer sleeve being nested in outer layer sleeve, every layer of inner layer sleeve
Outer circumference surface on be evenly distributed with it is a plurality of with least one turnover right angle around circulation road, it is each described around circulation road
One end is provided with ostium, and the other end is provided with tap hole, and the tap hole around circulation road on every layer of inner layer sleeve is adjacent thereto
The ostium around circulation road on inner layer sleeve is connected, outer layer sleeve be provided with inner layer sleeve adjacent thereto on around circulation road
The circular hole that is connected of ostium.
Above, it is described around circulation road with turnover right angle quantity increase, its extended structure be similar to square wave waveform
Structure.
Preferably, the outer layer sleeve is nested with provided with two layers of inner layer sleeve.
Preferably, diagonally it is distributed in the shape of a spiral on the outer circumference surface of the layer sleeve including circulation road.
Further, the width around circulation road is 2 ~ 5mm, and depth is 2 ~ 5mm.Preferably, width 2mm, depth
For 2mm.
Further, when it is described around the turnover right angle of circulation road be 1 ~ 4 when, it is described around axle of the circulation road along inner layer sleeve
To or circumferentially extending.
Preferably, it is described around circulation road be S types around circulation road.
Further, when it is described around the turnover right angle of circulation road more than 4 when, it is described around axle of the circulation road along inner layer sleeve
To extension.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
1. the utility model on the outer surface of inner layer sleeve by setting around circulation road, so as to realize in each layer sleeve
Multi-step pressure reduction is carried out on circumference normal plane, under same sleeve dimensions, increases the series of multi-step pressure reduction, lifts effect of easing stress,
Ensure valve safe operation；
2. the utility model is simple in construction, easily manufactured, suitable for popularization and application.
Brief description of the drawings
Fig. 1 is the tube-in-tube structure schematic diagram of prior art.
Fig. 2 is the structural representation of the utility model embodiment one.
Fig. 3 is that the annexation around circulation road on the adjacent two layers inner layer sleeve of the utility model embodiment one is illustrated
Figure.
Wherein：1st, sleeve；2nd, outer layer sleeve；3rd, inner layer sleeve；4th, around circulation road；5th, ostium；6th, tap hole；7th, circle
Hole.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Embodiment one：
Referring to shown in Fig. 2 and 3, a kind of circumference normal plane decompression type multilayer sleeve, it includes an outer layer sleeve 2 and is nested in
At least one layer of inner layer sleeve 3 in outer layer sleeve, a plurality of bands are evenly distributed with the outer circumference surface of every layer of inner layer sleeve
Have at least one turnover right angle around circulation road 4, it is each it is described be provided with ostium 5 around one end of circulation road, the other end, which is provided with, to flow
Portal 6, the inflow around circulation road on the inner layer sleeve adjacent thereto of the tap hole around circulation road on every layer of inner layer sleeve
Hole is connected, and outer layer sleeve is provided with the circular hole 7 being connected around the ostium of circulation road on inner layer sleeve adjacent thereto.
Above, it is described around circulation road with turnover right angle quantity increase, its extended structure be similar to square wave waveform
Structure.
In the present embodiment, the outer layer sleeve is nested with provided with two layers of inner layer sleeve.
Diagonally it is distributed in the shape of a spiral on the outer circumference surface of the layer sleeve including circulation road.
The width around circulation road is 2mm, depth 2mm.
When it is described around the turnover right angle of circulation road be 1 ~ 4 when, it is described around axial direction of the circulation road along inner layer sleeve or circumference
Extension.
Specifically, when transfer right angle be 4 when, it is described around circulation road be S types around circulation road.
For ease of processing, when it is described around the turnover right angle of circulation road more than 4 when, it is described around circulation road along inner layer sleeve
It is axially extending.
When in use, fluid enters entering in circulation road on inner layer sleeve to the utility model through the circular hole on outer layer sleeve
Multiple 90 ° of row streams, and from the series for spatially increasing decompression, under same size, adds the series of multi-step pressure reduction, makes
Effect of easing stress is more preferable, ensures valve safe operation.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to above-described embodiment will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to above-described embodiment shown in this article, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
- A kind of 1. circumference normal plane decompression type multilayer sleeve, it is characterised in that：It includes an outer layer sleeve and is nested in outer layer jacket At least one layer of inner layer sleeve in cylinder, it is evenly distributed with the outer circumference surface of every layer of inner layer sleeve and a plurality of carries at least one Individual turnover right angle around circulation road, it is each it is described be provided with ostium around one end of circulation road, the other end is provided with tap hole, every layer of institute The ostium around circulation road stated on the inner layer sleeve adjacent thereto of the tap hole around circulation road on inner layer sleeve is connected, outer layer Sleeve is provided with the circular hole being connected around the ostium of circulation road on inner layer sleeve adjacent thereto.
- 2. circumference normal plane decompression type multilayer sleeve according to claim 1, it is characterised in that：The outer layer sleeve embeds It is arranged with two layers of inner layer sleeve.
- 3. circumference normal plane decompression type multilayer sleeve according to claim 1, it is characterised in that：It is described including circulation road Diagonally it is distributed in the shape of a spiral on the outer circumference surface of layer sleeve.
- 4. circumference normal plane decompression type multilayer sleeve according to claim 1, it is characterised in that：The width around circulation road It is 2 ~ 5mm to spend for 2 ~ 5mm, depth.
- 5. circumference normal plane decompression type multilayer sleeve according to claim 1, it is characterised in that：When described around circulation road It is described around axial direction of the circulation road along inner layer sleeve or circumferentially extending when turnover right angle is 1 ~ 4.
- 6. circumference normal plane decompression type multilayer sleeve according to claim 5, it is characterised in that：It is described around circulation road be S Type is around circulation road.
- 7. circumference normal plane decompression type multilayer sleeve according to claim 1, it is characterised in that：When described around circulation road When transferring right angle more than 4, it is described around circulation road along the axially extending of inner layer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515169.XU CN206738705U (en) | 2017-05-10 | 2017-05-10 | A kind of circumference normal plane decompression type multilayer sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515169.XU CN206738705U (en) | 2017-05-10 | 2017-05-10 | A kind of circumference normal plane decompression type multilayer sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738705U true CN206738705U (en) | 2017-12-12 |
Family
ID=60565243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720515169.XU Active CN206738705U (en) | 2017-05-10 | 2017-05-10 | A kind of circumference normal plane decompression type multilayer sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738705U (en) |
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2017
- 2017-05-10 CN CN201720515169.XU patent/CN206738705U/en active Active
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