CN204628660U - A kind of one-way valve - Google Patents
A kind of one-way valve Download PDFInfo
- Publication number
- CN204628660U CN204628660U CN201520126583.2U CN201520126583U CN204628660U CN 204628660 U CN204628660 U CN 204628660U CN 201520126583 U CN201520126583 U CN 201520126583U CN 204628660 U CN204628660 U CN 204628660U
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- Prior art keywords
- chamber
- way valve
- valve
- nut
- spring
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Abstract
The utility model discloses a kind of one-way valve, relate to valve body technical field.This one-way valve comprises valve body, valve inner is divided into the first chamber and the second chamber, describedly be provided with valve seat therebetween, valve seat is provided with a through hole and is communicated with the first chamber and the second chamber, spring is provided with along valve axis direction in first chamber, the spring one end attaching nut the other end is connected on valve seat, spacing between the inwall of nut outer wall and the first chamber is 0.2mm, simultaneously at nut outer wall or/and the first chamber inner wall is provided with fluid flow passageway, one-way valve comprises spool, spool comprises poppet head and valve core link rod portion, one end, valve core link rod portion is connected with nut thread, the other end is connected with poppet head, poppet head is the bowl-shape of back-off and is positioned at the second chamber one end near through hole, the diameter of its outermost end is greater than the diameter of through hole.The one-way valve structures that the utility model provides is simple, overcomes internal structure dismounting in the past, installs the problem of inconvenience, can improve quality control capability.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of one-way valve.
Background technique
One-way valve is that fluid can only along inlet flow, and outlet medium but cannot reflux, and is commonly called as one-way valve.One-way valve also known as safety check or check valve, for preventing oil stream reverse flow in hydraulic system, or for preventing pressurized air reverse flow in pneumatic system.But existing one-way valve structures complexity is not easy to install, and can not detect the state of one-way valve internal structure in time, cannot get rid of potential safety hazard in time.
Model utility content
The purpose of this utility model is to propose a kind of one-way valve, and structure is simple, good airproof performance, is convenient to installation and removal, can detects the quality problems of one-way valve at any time.
For reaching this object, the utility model by the following technical solutions:
A kind of one-way valve, comprise valve body, described valve inner is divided into the first chamber and the second chamber, valve seat is provided with between described first chamber and the second chamber, valve seat is provided with a through hole and is communicated with described first chamber and the second chamber, spring is provided with along valve axis direction in described first chamber, the described spring one end attaching nut the other end is connected on valve seat, spacing between the inwall of described nut outer wall and the first chamber is 0.2mm, simultaneously at described nut outer wall or/and described first chamber inner wall is provided with fluid flow passageway, described one-way valve comprises spool, described spool comprises poppet head and valve core link rod portion, one end, described valve core link rod portion is connected with described nut thread, the other end is connected with described poppet head, described poppet head is the bowl-shape of back-off and is positioned at the second chamber one end near through hole, the diameter of its outermost end is greater than the diameter of described through hole.
Further technological scheme, described poppet head is arranged with horn-like valve core seal ring.
Further technological scheme, described nut comprises nipple heads and spring bracket, the diameter of described spring bracket is little compared with the outside dimension of nipple heads, described spring one end is set on described spring bracket, the size of described nipple heads and the diameter compatible of described first chamber close, the outer surface of described nipple heads offers fluid flow passageway, the exterior line that described fluid flow passageway is communicated with described first chamber and is connected with described one-way valve.
Further technological scheme, the shape of described nipple heads is cross or quincunx.
Further technological scheme, described nut comprises nipple heads and spring bracket, the diameter of described spring bracket is little compared with the diameter dimension of nipple heads, described spring one end is set on described spring bracket, the inwall of described first chamber offers fluid flow passageway, the exterior line that described fluid flow passageway is communicated with described first chamber and is connected with described one-way valve.
Further technological scheme, the inner wall smooth of described first chamber, described second chamber is provided with screw thread away from one end inwall of through hole, the exterior line grafting that described first chamber is connected with described one-way valve, the exterior line that described second chamber is connected with described one-way valve is threaded, and is provided with is connected seal ring in described second chamber with pipe ends contacting point.
Further technological scheme, it is protruding that the outer wall that described second chamber is corresponding is provided with multiple long strip along valve body axis.
Further technological scheme, one end end face that described second chamber is corresponding is provided with orthohexagonal edge.
Further technological scheme, the material of described one-way valve valve body is plastics.
The beneficial effects of the utility model:
A kind of one-way valve that the utility model proposes, by flowing through the compression situation of the fluid control spring of valve body, when fluid compression nut, spool and valve core seal ring move simultaneously, spool is away from through hole, now fluid flows through through hole to the second chamber from the first chamber, when hydrodynamic pressure is large not, because spring will recover distortion, nut band movable valve plug and valve core seal ring get back to original position, through hole seals by valve core seal ring, and the fluid in the second chamber cannot flow into the first chamber, realizes unidirectional control; One-way valve is convenient to assembly and disassembly, and spool and valve core seal ring load valve body from the second chamber, and spring and nut load valve body from the first chamber, be threaded connection between spool and nut, assemble successfully, convenient detection and installation, improve quality control capability, simple and reliable for structure.
Accompanying drawing explanation
Fig. 1 is the one-way valve external structure schematic diagram that the utility model embodiment provides;
Fig. 2 is the axial sectional view of the one-way valve that the utility model embodiment provides;
Fig. 3 is the plan view of the one-way valve that the utility model embodiment provides.
Wherein, 1, valve body; 2, the first chamber; 3, the second chamber; 4, valve seat; 5, through hole; 6, spring; 7, nipple heads; 8, spring bracket; 9, poppet head; 10, valve core link rod portion; 11, valve core seal ring; 12, seal ring is connected; 13, protruding; 14, edge; 15, fluid flow passageway.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Fig. 1 and Fig. 2 is the one-way valve external structure schematic diagram that provides of the utility model embodiment and axial sectional view respectively.A kind of one-way valve, comprise valve body 1, valve body 1 inside is divided into the first chamber 2 and the second chamber 3, valve seat 4 is provided with between first chamber 2 and the second chamber 3, valve seat 4 is provided with a through hole 5 and is communicated with the first chamber 2 and the second chamber 3, spring 6 is provided with along valve body 1 axial direction in first chamber 2, spring 6 one end attaching nut's the other end is connected on valve seat 4, spacing between the inwall of nut outer wall and the first chamber 2 is 0.2mm, simultaneously at nut outer wall or/and the first chamber 2 inwall is provided with fluid flow passageway 15, one-way valve comprises spool, spool comprises poppet head 9 and valve core link rod portion 10, one end, valve core link rod portion 10 is connected with described nut thread, the other end is connected with described poppet head 9, poppet head 9 is the bowl-shape of back-off and is positioned at the second chamber 3 near one end of through hole 5, the diameter of its outermost end is greater than the diameter of described through hole 5.
Preferably, poppet head 9 is arranged with horn-like valve core seal ring 11.
Nut comprises nipple heads 7 and spring bracket 8, the diameter of spring bracket 8 is little compared with the outside dimension of nipple heads 7, spring 6 one end is set on spring bracket 8, the size of nipple heads 7 and the diameter compatible of the first chamber 2 close, the outer surface of nipple heads 7 offers fluid flow passageway 15, fluid flow passageway 15 is communicated with the exterior line that the first chamber 2 is connected with one-way valve, and wherein the shape of nipple heads 7 can be chosen as cross or quincunx.
Above-mentioned fluid flow passageway 15 can also be opened on the inwall of the first chamber 2.
The inner wall smooth of the first chamber 2, second chamber 3 is provided with screw thread away from one end inwall of through hole 5, the exterior line grafting that first chamber 2 is connected with one-way valve, quick grafting, reliable do not leak the exterior line that the second chamber 3 is connected with one-way valve and be threaded, interior being provided with pipe ends contacting point of the second chamber 3 is connected seal ring 12, can ensure the sealing between this one-way valve and place pipeline better.。
The outer wall of the second chamber 3 correspondence is provided with multiple long strip projection 13 along valve body 1 axis, during hand rotation valve body 1, utilizes protruding 10 more easily to operate; One end end face that second chamber (3) is corresponding is provided with orthohexagonal edge (14), and correspondingly instrument can be utilized to install and remove.。
The material of one-way valve valve body (1) is plastics.
When non-return valve operational, when fluid flows into the first chamber 2 from pipeline through the gap between nut 6 and the first chamber 2, fluid produces certain pressure to nut 6 simultaneously, the effect Compress Spring 5 that nut 6 is under pressure, be with movable valve plug 7 and valve core seal ring 8 to move simultaneously simultaneously, spool 7 is away from through hole 4, now fluid flow into the second chamber 3 from the first chamber 2 by through hole 4, when hydrodynamic pressure is large not, because spring 5 will recover distortion, at spring 5, nut 6 is returned to original position, nut 6 is with movable valve plug 7 and valve core seal ring 8 to get back to original position, through hole 4 place seals by valve core seal ring 8, fluid in second chamber 3 cannot flow into the first chamber 2, this one-way valve realizes unidirectional control.
Above-mentionedly only the specific embodiment of the utility model to be illustrated; but can not as protection domain of the present utility model; every according to the change of the equivalence done by design spirit in the utility model or to modify or equal proportion zooms in or out, all should think and fall into protection domain of the present utility model.
Claims (9)
1. an one-way valve, comprise valve body (1), it is characterized in that, described valve body (1) inside is divided into the first chamber (2) and the second chamber (3), valve seat (4) is provided with between described first chamber (2) and the second chamber (3), valve seat (4) is provided with a through hole (5) and is communicated with described first chamber (2) and the second chamber (3), spring (6) is provided with along valve body (1) axial direction in described first chamber (2), described spring (6) one end attaching nut's the other end is connected on valve seat (4), spacing between the inwall of described nut outer wall and the first chamber (2) is 0.2mm, simultaneously at described nut outer wall or/and described first chamber (2) inwall is provided with fluid flow passageway (15), described one-way valve comprises spool, described spool comprises poppet head (9) and valve core link rod portion (10), described valve core link rod portion (10) one end is connected with described nut thread, the other end is connected with described poppet head (9), bowl-shape in back-off of described poppet head (9) and be positioned at the second chamber (3) one end near through hole (5), the diameter of its outermost end is greater than the diameter of described through hole (5).
2. one-way valve according to claim 1, is characterized in that, described poppet head (9) is arranged with horn-like valve core seal ring (11).
3. one-way valve according to claim 1 and 2, it is characterized in that, described nut comprises nipple heads (7) and spring bracket (8), the diameter of described spring bracket (8) is little compared with the outside dimension of nipple heads (7), described spring (6) one end is set on described spring bracket (8), the size of described nipple heads (7) and the diameter compatible of described first chamber (2) close, the outer surface of described nipple heads (7) offers fluid flow passageway (15), the exterior line that described fluid flow passageway (15) is communicated with described first chamber (2) and is connected with described one-way valve.
4. one-way valve according to claim 1 and 2, is characterized in that, the shape of described nipple heads (7) is cross or quincunx.
5. one-way valve according to claim 1 and 2, it is characterized in that, described nut comprises nipple heads (7) and spring bracket (8), the diameter of described spring bracket (8) is little compared with the diameter dimension of nipple heads (7), described spring (6) one end is set on described spring bracket (8), the inwall of described first chamber (2) offers fluid flow passageway (15), the exterior line that described fluid flow passageway (15) is communicated with described first chamber (2) and is connected with described one-way valve.
6. one-way valve according to claim 1 and 2, it is characterized in that, the inner wall smooth of described first chamber (2), described second chamber (3) is provided with screw thread away from one end inwall of through hole (5), the exterior line grafting that described first chamber (2) is connected with described one-way valve, the exterior line that described second chamber (3) is connected with described one-way valve is threaded, and is provided with is connected seal ring (12) in described second chamber (3) with pipe ends contacting point.
7. one-way valve according to claim 1 and 2, is characterized in that, the outer wall of described second chamber (3) correspondence is provided with multiple long strip projection (13) axial along valve body (1).
8. one-way valve according to claim 1 and 2, is characterized in that, one end end face of described second chamber (3) correspondence is provided with orthohexagonal edge (14).
9. one-way valve according to claim 1 and 2, is characterized in that, the material of described one-way valve valve body (1) is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520126583.2U CN204628660U (en) | 2015-03-04 | 2015-03-04 | A kind of one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520126583.2U CN204628660U (en) | 2015-03-04 | 2015-03-04 | A kind of one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628660U true CN204628660U (en) | 2015-09-09 |
Family
ID=54047692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520126583.2U Expired - Fee Related CN204628660U (en) | 2015-03-04 | 2015-03-04 | A kind of one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996470A (en) * | 2016-01-23 | 2017-08-01 | 杭州拓海电子有限公司 | A kind of leakproof check valve of steam copper |
| CN107246530A (en) * | 2017-07-14 | 2017-10-13 | 珠海格力电器股份有限公司 | Filtering and deslagging structure for valve, air conditioning system and pipeline system |
| CN110696568A (en) * | 2019-10-14 | 2020-01-17 | 宿迁鑫慧隆橡胶科技有限公司 | Electric vehicle constant pressure inner tube with novel structure |
-
2015
- 2015-03-04 CN CN201520126583.2U patent/CN204628660U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996470A (en) * | 2016-01-23 | 2017-08-01 | 杭州拓海电子有限公司 | A kind of leakproof check valve of steam copper |
| CN107246530A (en) * | 2017-07-14 | 2017-10-13 | 珠海格力电器股份有限公司 | Filtering and deslagging structure for valve, air conditioning system and pipeline system |
| CN110696568A (en) * | 2019-10-14 | 2020-01-17 | 宿迁鑫慧隆橡胶科技有限公司 | Electric vehicle constant pressure inner tube with novel structure |
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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 |
Granted publication date: 20150909 Termination date: 20180304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |