CN208587552U - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
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- CN208587552U CN208587552U CN201821379453.XU CN201821379453U CN208587552U CN 208587552 U CN208587552 U CN 208587552U CN 201821379453 U CN201821379453 U CN 201821379453U CN 208587552 U CN208587552 U CN 208587552U
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- guiding foot
- foot
- guiding
- spool
- arc surface
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Abstract
The utility model discloses a kind of check valve, spool is integrated injection molded, spool includes body part and the guiding foot of three outer walls for being placed in body part, first runner is formed between first guiding foot and the second guiding foot, second flow channel is formed between first guiding foot and third guiding foot, forms third flow channel between the second guiding foot and third guiding foot；Angle between first guiding foot and the second guiding foot is α1, the angle between the first guiding foot and third guiding foot is α2, the angle between the second guiding foot and third guiding foot is α3, the area of the passage section of first runner is S1, the area of the passage section of second flow channel is S2, the area of the passage section of third flow channel is S3, wherein α1With α2It is roughly equal, and α1﹥ α3, α2﹥ α3, S1With S2It is roughly equal, and S1﹥ S3, S2﹥ S3, the invention also discloses another check valve, the check valve of the utility model improves spool and hits the issuable operating noise of valve body.
Description
Technical field
The present invention relates to valve arrangement technical fields, and in particular to a kind of check valve.
Background technique
Check valve is widely used in refrigeration system, for example, the capillary paralleling with air-conditioning system, to control refrigerant
Forward and reverse flow direction flow refrigerant can only according to defined direction.Existing a kind of typical float-type check valve, in copper pipe
It is provided with valve seat and core assembly, which is riveted by guide holder, sealing ring, gasket and guide post and formed, guide holder
Periphery tool is identical there are four shape and in the equally distributed guiding foot being adapted to copper pipe inner wall in guide holder periphery, adjacent guiding foot
Between formed medium flow path, the area equation of the passage section of each flow path.Under positive differential pressure action, spool is beaten
It opens to stop position, allows medium one-way flow.When outlet pressures increase above import end pressure, spool then with valve seat
Sealing surface is in close contact, and prevents medium back flow.
However, being limited by its own structure, core assembly may be rotated, be shaken, and hit copper pipe inner wall, or even bee occur
Ring noise.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of check valve, improved by the structure optimization to spool
The operating noise that may occur.
Check valve provided by the utility model, including valve body, valve seat and spool, the valve seat are set to the check valve
Valve chamber, the valve seat are fixedly connected with the valve body, and one end of the valve seat includes valve port portion, and the spool can be with the valve
Oral area abuts or separation, and the spool is integrated injection molded, and the spool includes body part and the first guiding foot, the second guiding
Foot, third are oriented to foot, and the first guiding foot, the second guiding foot and third guiding foot are set to the body part
Outer wall forms first runner, the first guiding foot and the third between the first guiding foot and the second guiding foot
Second flow channel is formed between guiding foot, forms third flow channel between the second guiding foot and third guiding foot；Described
Angle between one guiding foot and the second guiding foot is α1, the first guiding foot and the third are oriented to the folder between foot
Angle is α2, the angle between the second guiding foot and third guiding foot is α3, the face of the passage section of the first runner
Product is S1, the area of the passage section of the second flow channel is S2, the area of the passage section of the third flow channel is S3, wherein
α1With α2It is roughly equal, and α1﹥ α3, α2﹥ α3, S1With S2It is roughly equal, and S1﹥ S3, S2﹥ S3。
Another kind check valve provided by the utility model, including valve body, valve seat and spool, the valve seat are set to the list
To the valve chamber of valve, the valve seat is fixedly connected with the valve body, and one end of the valve seat includes valve port portion, and the spool can be with
The valve port portion abuts or separation, and the spool is integrated injection molded, and the spool includes body part and the first guiding foot, the
Two guiding feet, third are oriented to foot, and the first guiding foot, the second guiding foot and third guiding foot are set to described
The outer wall in body portion, the body part include the first circular arc being set between the first guiding foot and the second guiding foot
Face, is set to the second guiding foot at the second arc surface being set between the first guiding foot and third guiding foot
With the third arc surface between third guiding foot, formed between the first guiding foot and the second guiding foot first-class
Road, forms second flow channel between the first guiding foot and third guiding foot, the second guiding foot is led with the third
To forming third flow channel between foot；The radius of first arc surface is R1, the radius of second arc surface is R2, described
The radius in three-arc face is R3, the area of the passage section of the first runner is S1, the face of the passage section of the second flow channel
Product is S2, the area of the passage section of the third flow channel is S3, wherein R1With R3It is roughly equal, and R1With R2It is unequal, R3With
R2It is unequal, S1With S3It is roughly equal, and S1With S2It is unequal, S3With S2It is unequal.
Compared with the background art, the check valve of the utility model improves the spool shock issuable work of valve body and makes an uproar
Sound.
Detailed description of the invention
Fig. 1 is the overall structure diagram of check valve described in specific embodiment；
Fig. 2 is the perspective view of spool described in embodiment one；
Fig. 3 is the main view of spool shown in Fig. 2；
Fig. 4 is the top view of spool shown in Fig. 2；
Fig. 5 is the A-A cross-sectional view of Fig. 3；
Fig. 6 is the portion the I enlarged drawing of Fig. 5；
Fig. 7 is the perspective view of spool described in embodiment two；
Fig. 8 is the top view of spool shown in Fig. 7；
Fig. 9 is the perspective view of spool described in embodiment three；
Figure 10 is the top view of spool shown in Fig. 9.
In Fig. 1-Figure 10:
Valve body 1, valve seat 2, spool 3, auxiliary section 31, inner fovea part 311, the sealing guiding of ring portion 312, first foot 321, second are led
Foot 323, the first arc surface 331, the second arc surface 332, third arc surface 333 are oriented to foot 322, third.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical solution of the present invention
Applying example, the present invention is described in further detail.
Referring to FIG. 1, the figure is the overall structure diagram of present embodiment check valve.
Without loss of generality, its spool scheme is described in detail using check valve shown in Fig. 1 as description main body in present embodiment.
As shown in the figure, the valve body 1 of the check valve has the inside valve chamber of medium inlet and media outlet using steel tube forming, wherein valve
The middle part of seat 2 opens up valve port channel, and the radially compressed deformation of steel pipe forms the structure of fixed valve base 2, is adapted to 2 sealing valve port of valve seat
Spool 3 offset or separate with it, realize check valve one-way conduction function；Steel pipe at 3 other side stop position of spool
Radial shape is deformed into stop limit portion, to determine the stop position of spool 3.It should be appreciated that the fixed structure of valve seat 2, spool 3
The material and structure type of stop limit structure and valve body 1 do not constitute substance to spool technical solution provided by the present application
Limitation.For example, it is to be understood that valve body 1 described herein can also be made of copper material such as brass.
Embodiment 1:
Fig. 2 is referred to, which is the perspective view of spool shown in Fig. 1.
As shown in Fig. 2, three guiding feet of the body part periphery of spool 3 are respectively as follows: the first guiding foot 321, second guiding
Foot 322 and third are oriented to foot 323, and three is all set in the outer wall of body part.Please also refer to Fig. 3 and Fig. 4, wherein Fig. 3 is figure
The main view of spool shown in 2, Fig. 4 are the top view of spool shown in Fig. 2.
Wherein, the angle between the first guiding foot 321 and the second guiding foot 322 is α1, first is oriented to foot 321 leads with third
It is α to the angle between foot 3232, the angle between the second guiding foot 322 and third guiding foot 323 is α3。
Wherein, first runner, the first guiding foot 321 and third are formed between the first guiding foot 321 and the second guiding foot 322
Second flow channel is formed between guiding foot 323, forms third flow channel between the second guiding foot 322 and third guiding foot 323；It is first-class
The area of the passage section in road is S1, the area of the passage section of second flow channel is S2, the area of the passage section of third flow channel is
S3, each passage section is formed between ontology outer profile and adjacent guiding foot, as shown, α1With α2It is roughly equal, and α1﹥ α3,
α2﹥ α3, S1With S2It is roughly equal, and S1﹥ S3, S2﹥ S3, that is to say, that the passage section between each adjacent guiding foot is unequal.Work
In the process, the pressure of the big side of through-current capacity is greater than the pressure of the small side of through-current capacity, in two sides under the action of pressure difference, spool 3
The side inner wall for being intended to be affixed to valve chamber is displaced, and the possibility that spool 3 hits the generation operating noise of valve body 1 can be improved.
In the present solution, the angle α between the second guiding foot 322 and third guiding foot 3233With the first guiding foot 321 and the
Angle α between two guiding feet 3221And first guiding foot 321 and third guiding foot 323 between angle α2It is unequal, so as to preceding
It is unequal to state three passage sections.Here, the guiding foot number of the body peripheral of spool is three, wherein the first guiding 321 He of foot
Angle α between second guiding foot 3221And first guiding foot 321 and third guiding foot 323 between angle α2It is 130 °, second
The angle α being oriented between foot 322 and third guiding foot 3233It is 100 °, so that the passage section not phase between adjacent guiding foot
Deng.
Further as shown, body part includes first be set between the first guiding foot 321 and the second guiding foot 322
Arc surface 331, is set to second and leads the second arc surface 332 being set between the first guiding foot 321 and third guiding foot 323
Third arc surface 333 between foot 322 and third guiding foot 323；The radius of first arc surface 331 is R1, the second arc surface
332 radius is R2, the radius of third arc surface 333 is R3, wherein R1、R2、R3It is roughly equal.
The spool 3 is integrated injection molded, and spool 31 further includes the cooperation cooperated with valve seat 2 for being set to body part one end
Portion 31, auxiliary section 31 has inner fovea part 311, and the sealing ring portion 312 that can be adapted to valve seat 2 is formed in the end of inner fovea part 311.
Without in addition using the components such as brass guide post and gasket that can form sealing ring portion 312, compared to background technique, by structure and
Optimization of material can mitigate spool weight significantly.Under low pressure just can rapid valve opening, and reach stop position, gas in the course of work
When stream shakiness is shaken, shorter duration of valve opening can be effectively improved issuable noise.
In order to further improve spool self weight, generally pyramidal, and its cross-sectional area autogamy of the auxiliary section 31 of spool 3
Close the Long-term change trend that end successively tapers off to 3 middle section of spool.It should be appreciated that abutting end here refers to that spool 3 is adapted to valve seat 2
Construct one end of sealing relationship.Pyramidal 31 one side of auxiliary section is adapted to the radial dimension that it is adapted to sealing valve port and wants
It asks, while its main part radial dimension is gradually small to reduce materials'use, on the basis of meeting itself function of spool 3 further
Control its self weight.
As a kind of specific embodiment, inner fovea part 311 is specifically by interior concave spherical at can be dispersed fluid impact power, simultaneously
The impact of air-flow can be reduced.Please also refer to Fig. 5 and Fig. 6, wherein Fig. 5 is the A-A cross-sectional view of Fig. 3, and Fig. 6 is the portion I of Fig. 5
Enlarged drawing.Specifically, the inside and outside edge for sealing ring portion 312 is respectively provided with chamfering, and seals the seal face of ring portion 312 using grinding
Working process is had both good on the basis of improving anti-acoustic capability using the cooperation precision that grinding obtains sealing surface as a result,
Sealing performance.
In addition as shown, the first guiding foot 321, second is oriented to foot 322 and the stop end of third guiding foot 323 is stretched out
In the body part of spool 3, and the other end of each guiding foot extends to 31 body outer surface of auxiliary section in the trend that section is successively decreased.This
Sample, the guiding length of spool 3 meets its good actuation performance, while the structure can control ontology self weight to the maximum extent.
As further design, material of the spool 3 by specific gravity less than 1.36 grams/cc is made so that check valve is answered
The flowing of used time spool 3 in the medium, for example, PPS.
It should be noted that the design concept that the passage section between each adjacent guiding foot of this programme is not equal, does not limit to
The design method of angle between the guiding foot of the present embodiment.The embodiment of other two kinds different implementations is provided separately below.
Embodiment 2:
Please also refer to Fig. 7 and Fig. 8, wherein Fig. 7 is the perspective view of two spool of embodiment, and Fig. 8 is spool shown in Fig. 7
Top view.This programme is identical as the main body composition of one spool of embodiment, identical function constitute and structure using same tag into
Row is shown.
The guiding foot of the body part periphery of spool is three: first guiding feet 321, second guiding feet 322, the in this programme
Three guiding feet 323 in, it is each it is adjacent guiding foot between passage section unequally, concrete configuration are as follows: it is adjacent guiding foot between ontology
Outer profile is not identical.Body part include the first arc surface 331 being set between the first guiding foot 321 and the second guiding foot 322,
It is set to the second arc surface 332 between the first guiding foot 321 and third guiding foot 323, is set to the second guiding foot 322 and the
Third arc surface 333 between three guiding feet 323；The radius of first arc surface 331 is R1, the radius of the second arc surface 332 is
R2, the radius of third arc surface 333 is R3, wherein R1With R3It is roughly equal, and R1﹥ R2, R3﹥ R2, S1With S3It is roughly equal, and S1
And S3With S2It is unequal.
Wherein, the angle between the first guiding foot 321 and the second guiding foot 322 is α1, first is oriented to foot 321 leads with third
It is α to the angle between foot 3232, the angle between the second guiding foot 322 and third guiding foot 323 is α3, α1、α2、α3Substantially phase
Deng.
Using the spool of the present embodiment, it is also able to achieve the beneficial effect for implementing check valve shown in one, is not repeated to chat herein
It states.
Embodiment 3:
Please also refer to Fig. 9 and Figure 10, wherein Fig. 9 is the perspective view of three spool of embodiment, and Figure 10 is valve shown in Fig. 9
The top view of core.This programme is identical as the main body composition of two spool of embodiment one and embodiment, and identical function is constituted and structure is adopted
It is shown with same tag.
The guiding foot of the body part periphery of spool is three: first guiding feet 321, second guiding feet 322, the in this programme
Three guiding feet 323, the adjacent ontology outer profile being oriented between foot be not identical.As shown, body part includes being set to the first guiding
The first arc surface 331 between foot 321 and the second guiding foot 322, be set to the first guiding foot 321 and third guiding foot 323 it
Between the second arc surface 332, be set to the second guiding foot 322 and third guiding foot 323 between third arc surface 333；First
The radius of arc surface 331 is R1, the radius of the second arc surface 332 is R2, the radius of third arc surface 333 is R3, wherein R1With R3
It is roughly equal, and R2﹥ R1, R2﹥ R3, S1With S3It is roughly equal, and S1And S3With S2It is unequal, again such that between each adjacent guiding foot
Three passage sections be it is non-be symmetrical arranged.
Wherein, the angle between the first guiding foot 321 and the second guiding foot 322 is α1, first is oriented to foot 321 leads with third
It is α to the angle between foot 3232, the angle between the second guiding foot 322 and third guiding foot 323 is α3, wherein α1With α2Greatly
Cause equal, and α1﹥ α3, α2﹥ α3.In the present embodiment, α1It is 130 degree, α2It is 130 degree, α3It is 100 degree.
Using the spool of the present embodiment, it is also able to achieve the beneficial effect for implementing check valve shown in one, is not repeated to chat herein
It states.
It illustrates, the check valve that present embodiment provides, the not this Applicant's Abstract graph core of other function component in addition to spool
Where heart design, and those of ordinary skill in the art can realize that therefore, this article will not repeat them here based on background technique.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (12)
1. a kind of check valve, including valve body, valve seat and spool, the valve seat is set to the valve chamber of the check valve, the valve seat
It is fixedly connected with the valve body, one end of the valve seat includes valve port portion, and the spool can abut or divide with the valve port portion
From, which is characterized in that the spool is integrated injection molded, and the spool includes body part and the first guiding foot, the second guiding
Foot, third are oriented to foot, and the first guiding foot, the second guiding foot and third guiding foot are set to the body part
Outer wall forms first runner, the first guiding foot and the third between the first guiding foot and the second guiding foot
Second flow channel is formed between guiding foot, forms third flow channel between the second guiding foot and third guiding foot；Described
Angle between one guiding foot and the second guiding foot is α1, the first guiding foot and the third are oriented to the folder between foot
Angle is α2, the angle between the second guiding foot and third guiding foot is α3, the face of the passage section of the first runner
Product is S1, the area of the passage section of the second flow channel is S2, the area of the passage section of the third flow channel is S3, wherein
α1With α2It is roughly equal, and α1﹥ α3, α2﹥ α3, S1With S2It is roughly equal, and S1﹥ S3, S2﹥ S3。
2. check valve according to claim 1, which is characterized in that the body part includes being set to the first guiding foot
The first arc surface between the second guiding foot, the be set between the first guiding foot and third guiding foot
Two arc surfaces, the third arc surface being set between the second guiding foot and third guiding foot；First arc surface
Radius be R1, the radius of second arc surface is R2, the radius of the third arc surface is R3, wherein R1、R2、R3Substantially
It is equal.
3. check valve according to claim 1, which is characterized in that the body part includes being set to the first guiding foot
The first arc surface between the second guiding foot, the be set between the first guiding foot and third guiding foot
Two arc surfaces, the third arc surface being set between the second guiding foot and third guiding foot；First arc surface
Radius be R1, the radius of second arc surface is R2, the radius of the third arc surface is R3, wherein R1、R2、R3Substantially
It is equal, the α1It is 130 degree, the α2It is 130 degree, the α3It is 100 degree.
4. a kind of check valve, including valve body, valve seat and spool, the valve seat is set to the valve chamber of the check valve, the valve seat
It is fixedly connected with the valve body, one end of the valve seat includes valve port portion, and the spool can abut or divide with the valve port portion
From, which is characterized in that the spool is integrated injection molded, and the spool includes body part and the first guiding foot, the second guiding
Foot, third are oriented to foot, and the first guiding foot, the second guiding foot and third guiding foot are set to the body part
Outer wall, the body part include the first arc surface being set between the first guiding foot and the second guiding foot, setting
The second arc surface between the first guiding foot and third guiding foot is set to the second guiding foot and described the
Third arc surface between three guiding feet forms first runner between the first guiding foot and the second guiding foot, described
Second flow channel is formed between first guiding foot and third guiding foot, between the second guiding foot and third guiding foot
Form third flow channel；The radius of first arc surface is R1, the radius of second arc surface is R2, the third arc surface
Radius be R3, the area of the passage section of the first runner is S1, the area of the passage section of the second flow channel is S2,
The area of the passage section of the third flow channel is S3, wherein R1With R3It is roughly equal, and R1With R2It is unequal, R3With R2Not phase
Deng S1With S3It is roughly equal, and S1With S2It is unequal, S3With S2It is unequal.
5. check valve according to claim 4, which is characterized in that between the first guiding foot and the second guiding foot
Angle be α1, the angle between the first guiding foot and third guiding foot is α2, the second guiding foot and described the
Angle between three guiding feet is α3, wherein α1、α2、α3It is roughly equal.
6. check valve according to claim 4, which is characterized in that between the first guiding foot and the second guiding foot
Angle be α1, the angle between the first guiding foot and third guiding foot is α2, the second guiding foot and described the
Angle between three guiding feet is α3, wherein α1With α2It is roughly equal, and α1﹥ α3, α2﹥ α3。
7. check valve according to claim 6, which is characterized in that between the first guiding foot and the second guiding foot
Angle be α1, the angle between the first guiding foot and third guiding foot is α2, the second guiding foot and described the
Angle between three guiding feet is α3, wherein the α1It is 130 degree, the α2It is 130 degree, the α3It is 100 degree.
8. check valve according to any one of claim 1 to 7, which is characterized in that the spool further includes being set to institute
The auxiliary section of one end of body part is stated, the auxiliary section includes inner fovea part and sealing ring portion.
9. check valve according to claim 8, which is characterized in that the inside and outside edge of the sealing ring portion is respectively provided with chamfering,
And the seal face of the sealing ring portion is handled using attrition process.
10. check valve according to any one of claim 1 to 7, which is characterized in that the spool further includes being set to institute
State the auxiliary section of one end of body part, the auxiliary section it is generally pyramidal, and the cross-sectional area of the auxiliary section is from separate
The Long-term change trend that one end of the body part tapers off to one end close to the body part.
11. check valve according to claim 10, which is characterized in that it is described first guiding foot, it is described second guiding foot and
The third guiding foot respectively includes stretching out in the stop end of the body part, the first guiding foot, the second guiding foot
The trend successively decreased with the other end of third guiding foot in section extends to the outer surface of the auxiliary section.
12. check valve according to any one of claim 1 to 7, which is characterized in that the spool is by specific gravity less than 1.36
Gram/cc material be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379453.XU CN208587552U (en) | 2018-08-24 | 2018-08-24 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379453.XU CN208587552U (en) | 2018-08-24 | 2018-08-24 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587552U true CN208587552U (en) | 2019-03-08 |
Family
ID=65545022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821379453.XU Active CN208587552U (en) | 2018-08-24 | 2018-08-24 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208587552U (en) |
-
2018
- 2018-08-24 CN CN201821379453.XU patent/CN208587552U/en active Active
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Effective date of registration: 20220817 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |