CN203585457U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN203585457U CN203585457U CN201320702802.8U CN201320702802U CN203585457U CN 203585457 U CN203585457 U CN 203585457U CN 201320702802 U CN201320702802 U CN 201320702802U CN 203585457 U CN203585457 U CN 203585457U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- spring
- valve seat
- seat
- valve
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Taps Or Cocks (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a check valve. A valve seat is fixedly arranged at one end of the internal part of a tubular valve body and a spring gland is fixedly arranged at the other end; the inner chamber of the valve seat is of a conical structure and a through hole is formed in the spring gland; a steel ball is sheathed in the inner chamber of the valve seat, a spring seat is arranged on the outer side of the steel ball and a spring is arranged between the spring seat and the spring gland. The check valve has the advantages that the structure is very simple, the very good sealing effect can be realized through fitting between the steel ball and the conical surface of the valve seat, the contact area between the steel ball and the conical surface of the valve seat is very small, the pressure between the steel ball and the valve seat is higher and the sealing performance is good; the steel ball and the metallic valve seat can bear a higher temperature environment, the thermal expansion coefficient of the steel ball and the valve seat is the same and the check valve is suitable for use in environments with greater temperature difference; the service life is long, the cost is low and the popularization and the implementation are facilitated.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of one-way valve.
Background technique
Existing one-way valve complex structure, but in the rear deleterious of long-term use, the life-span is shorter.And the factor of being expanded with heat and contract with cold affects larger.For example, the one-way valve of existing conventional dependence cone and cone match, is to utilize rubber centrum and a cone match, utilizes rubber elasticity to realize press seal, but is not suitable for working under high temperature condition, and this kind of one-way valve is also not suitable for the place that temperature range is larger.
Model utility content
The utility model provides for problems of the prior art and deficiency, and a kind of simple in structure but good one-way valve of applicable effect is provided.
The technical scheme in the invention for solving the technical problem is: a kind of one-way valve, comprise tubular valve body, and intrinsic valve seat is overlapped in the inner one end of this tubular valve body, the other end cover built-in spring gland; The inner chamber of described valve seat is cone structure, on described spring capping, is provided with through hole; In the inner chamber of described valve seat, be set with steel ball, in steel ball arranged outside, have spring seat, between spring seat and spring capping, be provided with spring.The end face that described spring seat contacts with steel ball is provided with conical socket.Spielpassung between the circumference side of described spring seat and tubular valve body inwall.
Effect intentionally of the present utility model: the utility model structure is very simple, utilizes the cone match of steel ball and valve seat can realize good sealing effect, and the surface of contact between steel ball and the conical surface of valve seat is very little, and both pressure is larger, and seal degree is large.Steel ball and metal seat valve can bear compared with high stable environment, and both thermal expansion coefficient are identical, and the environment that the applicable temperature difference is larger is used.When spring seat bears spring pressure, be also subject to fluid pressure, increase sealing effect.The utility model life-span is long, and cost is low, is applicable to promotion and implementation.
Accompanying drawing explanation
Figure l is the cross-sectional view of the utility model one-way valve.
Number in the figure 1 is tubular valve body, and 2 is valve seat, and 3 is steel ball, and 4 is spring seat, and 5 is spring, and 6 is spring capping.
Embodiment
A kind of one-way valve, referring to Fig. 1, the two ends of tubular valve body 1 arrange respectively screw thread, can with pipeline abutting joint.Intrinsic valve seat 2 is overlapped in the inner one end of tubular valve body 1, the other end cover built-in spring gland 6; Wherein the inner chamber of valve seat 2 is cone structure, and steel ball 3 is installed in the conical surface, and this structural feature is not harsh to steel ball 3 size requirements, is applicable to sealing with multiple diameter steel ball.In steel ball 3 arranged outside, have spring seat 4, described spring seat 4 is provided with conical socket with the end face that steel ball 3 contacts, Spielpassung between the circumference side of spring seat 4 and tubular valve body 1 inwall.On spring capping 6, be provided with through hole.Between spring seat 4 and spring capping 6, be provided with spring 5.
Claims (3)
1. an one-way valve, comprises tubular valve body, it is characterized in that: intrinsic valve seat is overlapped in the inner one end of this tubular valve body, the other end cover built-in spring gland; The inner chamber of described valve seat is cone structure, on described spring capping, is provided with through hole; In the inner chamber of described valve seat, be set with steel ball, in steel ball arranged outside, have spring seat, between spring seat and spring capping, be provided with spring.
2. one-way valve according to claim 1, is characterized in that: the end face that described spring seat contacts with steel ball is provided with conical socket.
3. one-way valve according to claim 1, is characterized in that: Spielpassung between the circumference side of described spring seat and tubular valve body inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702802.8U CN203585457U (en) | 2013-11-09 | 2013-11-09 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702802.8U CN203585457U (en) | 2013-11-09 | 2013-11-09 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585457U true CN203585457U (en) | 2014-05-07 |
Family
ID=50583377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320702802.8U Expired - Lifetime CN203585457U (en) | 2013-11-09 | 2013-11-09 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132170A (en) * | 2014-07-27 | 2014-11-05 | 成都国光电子仪表有限责任公司 | Mini-type pressure reduction pipe |
-
2013
- 2013-11-09 CN CN201320702802.8U patent/CN203585457U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132170A (en) * | 2014-07-27 | 2014-11-05 | 成都国光电子仪表有限责任公司 | Mini-type pressure reduction pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |