CN204113786U - A kind of one-way valve - Google Patents
A kind of one-way valve Download PDFInfo
- Publication number
- CN204113786U CN204113786U CN201420471552.6U CN201420471552U CN204113786U CN 204113786 U CN204113786 U CN 204113786U CN 201420471552 U CN201420471552 U CN 201420471552U CN 204113786 U CN204113786 U CN 204113786U
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- CN
- China
- Prior art keywords
- seal
- valve body
- way valve
- valve
- hole
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- 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 - Fee Related
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- Safety Valves (AREA)
Abstract
The utility model relates to a kind of one-way valve, particularly a kind of there is throttling function and working life higher one-way valve.A kind of one-way valve described in the utility model, comprise valve body, valve seat, is arranged at the seal in valve body, and described valve body is provided with at least one and crosses oil groove, described valve seat is provided with the through hole matched with seal, described seal one end and through hole are sealed and matched, and the other end is connected to valve body by elastic element, described valve body and seal with contact, the face that described seal and valve body contact at least is provided with a damping oil passing groove, and described damping oil passing groove is the oil-through hole of opening narrows.The setting of damping oil passing groove, can realize the throttling of fluid, the vibration then reducing seal and the noise caused due to vibration.
Description
Technical field
The utility model relates to a kind of one-way valve, particularly a kind of there is throttling function and working life higher one-way valve.
Background technique
One-way valve is in hydraulic system, prevents the device of fluid reverse flow.Conventional one-way valve is made up of valve body, valve seat, spool and spring element usually, its working principle is generally: pressure oil flows into from filler opening, acts on spool, when fluid overcomes the elastic force of spring element, back down spool, flow out from oil outlet through annular valve port.When liquid stream is reverse, under spring force and oil liquid pressure effect, spool is pressed on valve seat, outlet side fluid not by.Wherein, described elastic element is generally normal spiral spring.In the process that this one-way valve uses in reality, mainly there is following problem: 1, under oil liquid pressure effect, spool infinite place, opening travel are comparatively large, and fluid, without guiding, without throttling, easily makes one-way valve produce and vibrates and noise; 2, normal spiral spring stress level is higher, causes spring limited for working life, thus affects reliability and the service time of one-way valve.
Summary of the invention
Technical problem to be solved in the utility model is to provide after a kind of spool opens, and spool limited location, fluid have throttling, disc vibration and noise reduce and the one-way valve that working life is higher.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of one-way valve, comprise valve body, embed the valve seat of valve body, slide the seal be arranged in valve body, described valve body is provided with at least one and crosses oil groove, described valve seat is provided with the through hole matched with seal, described seal one end and through hole are sealed and matched, the other end is connected to valve body by elastic element, its structural feature is: described seal contacts with valve body, the face that described seal and valve body contact at least is provided with a damping oil passing groove, described damping oil passing groove is the oil-through hole of opening narrows.
When fluid overcomes spring element elastic force, seal is opened, fluid flows into the valve pocket after seal, again along the damping oil passing groove of seal, flowing to valve body crosses in the process of oil groove, fluid area of passage can be made to reduce gradually, thus realize the object of throttling, then the vibration of seal is reduced, and the noise caused due to seal vibration.Described seal is hemisphere, and hemisphere itself has leading role, and it can play the effect of stroke restriction by the longitudinal length of self.
As preferably, described elastic element is flat springs.Under identical stress level, the stress level of flat springs is lower than normal spiral spring, therefore the working life of flat springs is higher than normal spiral spring.Adopt flat springs to replace helical spring, one-way valve reliability and service time can be improved preferably.
As preferably, described seal upper surface is provided with the first lug boss and the second lug boss, and described second lug boss is coupled laterally to valve body by flat springs.The object that arranges of described lug boss is, the installation of seal and valve body is located and is more prone to.
The utility model compared with the existing technology has the following advantages and effect: 1, on seal, handicapping Buddhist nun crosses oil groove, when seal is opened, after fluid flows into the valve pocket after seal, then crosses in the process of oil groove along damping oil passing concentrated flow to valve body.Due to the existence of damping oil passing groove, fluid area of passage is reduced gradually, thus slows down fluid output speed, then reach and reduce the vibration of seal generation and the object of noise; 2, the use of flat springs, can improve reliability and the working life of one-way valve preferably; 3, seal itself has leading role, and it can play the effect of stroke restriction by the longitudinal length of self.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of one-way valve described in the utility model;
Fig. 2 is the structural representation of one-way valve seal described in the utility model;
Label declaration: 1, valve seat; 2, through hole; 3, valve body; 4, seal; 5, oil groove is crossed; 6, the second lug boss; 7, elastic element; 8, damping oil passing groove; 9, the first lug boss;
Embodiment
Be described in further detail the utility model below in conjunction with embodiment, following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment 1: as shown in Fig. 1 to 2, this practical new described a kind of one-way valve, comprise valve body 3, embed the valve seat 1 of valve body, slide the seal 4 be arranged in valve body 3, described valve body 3 is at least provided with one and crosses oil groove 5, described valve seat 1 is provided with the through hole 2 matched with seal 4, described seal 4 one end and through hole 2 are sealed and matched, the other end is provided with the first lug boss 9, described first lug boss 9 is connected to valve body 3 by elastic element 7, described valve body 3 contacts with seal 4, the face that described seal 4 and valve body 3 contact at least is provided with a damping oil passing groove 8, described damping oil passing groove 8 is the oil-through hole of opening narrows.As preferably, described first lug boss 9 is provided with the second lug boss 6, and described second lug boss 6 is coupled laterally to valve body 3 by elastic element 7, and elastic element 7 described herein is flat springs, and described seal 4 is hemisphere.When fluid overcomes the elastic force of flat springs, back down hemisphere, flow into valve body chamber, and flow to valve body along hemispheroidal damping oil passing groove 8 and cross in the process of oil groove 5, fluid area of passage can be made to reduce gradually, thus realize the object of throttling, then reduce vibration and the noise of hemisphere generation.Hemisphere itself has leading role, it can play the effect of stroke restriction by the longitudinal length of self, the working life of the flat springs of flat springs, higher than normal spiral spring, adopts flat springs can improve one-way valve reliability and service time preferably.
In addition, it should be noted that, the specific embodiment described in this specification, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (7)
1. an one-way valve, comprise valve seat (1), valve body (3), be arranged at the seal (4) in valve body (3), described valve body (3) is at least provided with one and crosses oil groove (5), described valve seat (1) is provided with the through hole (2) matched with seal (4), described seal (4) one end and through hole (2) are sealed and matched, the other end is connected to valve body (3) by elastic element (7), it is characterized in that, described seal (4) contacts with valve body (3), the face that described seal (4) contacts with valve body (3) is provided with at least one damping oil passing groove (8).
2. one-way valve according to claim 1, is characterized in that, the oil-through hole that described damping oil passing groove (8) is opening narrows.
3. one-way valve according to claim 1, it is characterized in that, described seal (4) is hemisphere.
4. one-way valve according to claim 1, it is characterized in that, described seal (4) is provided with the first lug boss (9).
5. one-way valve according to claim 4, is characterized in that, described first lug boss (9) establishes the second lug boss (6).
6. one-way valve according to claim 5, is characterized in that, described elastic element (7) is flat springs.
7. one-way valve according to claim 6, is characterized in that, described second lug boss (6) is coupled laterally to valve body (3) by flat springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471552.6U CN204113786U (en) | 2014-08-20 | 2014-08-20 | A kind of one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471552.6U CN204113786U (en) | 2014-08-20 | 2014-08-20 | A kind of one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113786U true CN204113786U (en) | 2015-01-21 |
Family
ID=52331100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420471552.6U Expired - Fee Related CN204113786U (en) | 2014-08-20 | 2014-08-20 | A kind of one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113786U (en) |
-
2014
- 2014-08-20 CN CN201420471552.6U patent/CN204113786U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20190820 |