CN208967124U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN208967124U CN208967124U CN201821459744.XU CN201821459744U CN208967124U CN 208967124 U CN208967124 U CN 208967124U CN 201821459744 U CN201821459744 U CN 201821459744U CN 208967124 U CN208967124 U CN 208967124U
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- China
- Prior art keywords
- piston
- check valve
- guidance set
- elastic component
- rotation stop
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Abstract
The utility model provides a kind of check valve, which includes: valve body, has cavity；Guidance set is fixed in cavity；Piston is movably disposed on guidance set；Spline structure is arranged between piston and guidance set, and spline structure is oppositely oriented component rotation for limiting piston.The problem of check valve in the prior art can make a noise when in use is able to solve by the application.
Description
Technical field
The utility model relates to check valve technical fields, in particular to a kind of check valve.
Background technique
Currently, existing check valve generally comprises valve body, piston and spring, piston is movably disposed in valve body,
Spring is connect with piston, mobile by piston so that valve body is in is in communication with the outside to provide pretightning force to piston by spring
Or closed state.
For existing check valve in conducting, fluid can be flowed to the other end of valve body by one end approach piston of valve body, stream
Body will cause piston rotation in flow process, so will cause piston and rubs with components other in valve body, so that unidirectionally
Valve can make a noise when in use, and reduce the service life of check valve.
Utility model content
The utility model provides a kind of check valve, can be made a noise with solving check valve in the prior art when in use
Problem.
The utility model provides a kind of check valve, and check valve includes: valve body, has cavity；Guidance set, fixed setting
In cavity；Piston is movably disposed on guidance set；Spline structure is arranged between piston and guidance set, rotation stop
Structure is oppositely oriented component rotation for limiting piston.
Further, check valve further includes elastic component, and one end of elastic component is abutted with piston, the other end of elastic component with lead
It is abutted to component, is provided with spline structure between elastic component and piston, between elastic component and guidance set.
Further, the first rotation stop hole is provided on piston, one end of elastic component and the first rotation stop hole are mating.
Further, the second rotation stop hole is provided on guidance set, the other end of elastic component is matched with the second rotation stop hole grafting
It closes.
Further, piston includes First stage interconnected and second step section, and the diameter in First stage is big
The first rotation stop hole, guiding group are provided on end face between the diameter of second step section, First stage and second step section
Part is located at the side of second step section.
Further, second step section is axially disposed pilot hole, and guidance set is partially disposed in pilot hole.
Further, guidance set includes: supporting baffle, and setting is provided with the second rotation stop in cavity, in supporting baffle
Hole；One end of guide post, guide post is fixedly connected with supporting baffle, and piston is movably disposed at the other end of guide post.
Further, centre bore and through flow hole are provided in supporting baffle, one end of guide post is threaded through in centre bore.
Further, multiple through flow holes are provided in supporting baffle, multiple through flow holes are symmetrical arranged centered on centre bore
In supporting baffle.
Further, check valve further include: retaining ring is fixed in cavity, and is located at the separate piston of guidance set
Side, retaining ring is movable with respect to valve body for restricted guidance component.
Using the technical solution of the utility model, which includes valve body, guidance set, piston and spline structure.
Wherein, piston is movably disposed on guidance set, and spline structure is provided between guidance set and piston, is stopped by this
Rotation structure can be to relatively rotate between restricted guidance component and piston.By check valve provided by the present application, can make to flow
When body flows in valve, since spline structure is arranged, fluid driven piston rotation can be prevented, and then can be avoided and turned by piston
It moves and causes noise, and piston can be reduced and rubbed with other components, and then reduce piston wear, improve check valve
Service life.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the structural schematic diagram according to check valve provided by the embodiment of the utility model；
Fig. 2 shows the structural schematic diagrams of piston in Fig. 1；
Fig. 3 shows the structural schematic diagram of guidance set in Fig. 1；
Fig. 4 shows the structural schematic diagram of supporting baffle in Fig. 3.
Wherein, the above drawings include the following reference numerals:
10, valve body；20, guidance set；21, the second rotation stop hole；22, supporting baffle；23, guide post；24, centre bore；25,
Through flow hole；30, piston；31, the first rotation stop hole；32, the First stage；33, second step section；34, pilot hole；40, elastic component；
50, retaining ring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of check valve, which includes: valve body 10, guiding group
Part 20, piston 30 and spline structure.Specifically, the valve body 10 has cavity, cavity is used to provide runner to fluid.Guiding group
Part 20 is arranged in cavity, and piston 30 is movably disposed on guidance set 20, and guidance set 20 is for guiding piston 30 to move
It is dynamic.Piston 30 and valve body 10 cooperate so that the check valve has on state and off-state, and fluid can only be by valve body 10
One end flows to the other end of valve body 10.Spline structure is arranged between piston 30 and guidance set 20, by the way that spline structure is arranged
The rotation of component 20 is oppositely oriented to limit piston 30.
Using check valve provided in this embodiment, which includes valve body 10, guidance set 20, piston 30 and rotation stop
Structure.Wherein, piston 30 is movably disposed on guidance set 20, is provided with rotation stop between guidance set 20 and piston 30
Structure, can be to relatively rotate by the spline structure between restricted guidance component 20 and piston 30.It is provided by the application
Check valve, when fluid can be made to flow in valve, due to be arranged spline structure, can prevent fluid driven piston 30 rotate,
And then can be avoided and rotated by piston 30 and cause noise, and piston 30 can be reduced and rubbed with other components, in turn
It reduces piston 30 to wear, improves the service life of check valve.
Specifically, check valve further includes elastic component 40, one end of elastic component 40 is abutted with piston 30, elastic component 40 it is another
End is abutted with guidance set 20, by setting elastic component 40 to provide pretightning force, the fluid pressure for being subject to piston 30 to piston 30
Power is greater than pretightning force Shi Caineng and keeps piston 30 mobile and open.Also, in the present embodiment, elastic component 40 and piston 30 it
Between, between elastic component 40 and guidance set 20 be provided with spline structure.Wherein, elastic component 40 can be spring.
As shown in Fig. 2, first rotation stop hole 31 is arranged in piston 30 specifically, the spline structure includes the first rotation stop hole 31
On, one end of elastic component 40 and the first rotation stop hole 31 are mating, so that elastic component 40 is connect with piston 30.
As shown in Figure 3 and Figure 4, which further includes the second rotation stop hole 21, and the second rotation stop hole 21 is arranged in guiding group
On part 20, the other end of elastic component 40 and the second rotation stop hole 21 are mating, so that elastic component 40 is connect with guidance set 20.Such as
This can connect guidance set 20 and piston 30 by elastic component 40, since opposite turn will not occur for guidance set 20 and valve body 10
It is dynamic, and then the piston connecting with guidance set 20 30 can be made not relatively rotate.Work can be limited by elastic component 40
30 rotation of plug, simplifies apparatus structure, and can facilitate processing and manufacturing.
As shown in Fig. 2, the piston 30 specifically includes First stage 32 interconnected and second step section 33, First
The diameter in stage 32 is greater than the diameter of second step section 33, is arranged on the end face between First stage 32 and second step section 33
There is the first rotation stop hole 31, and guidance set 20 is located to the side of second step section 33.In First stage 32 and second step
The first rotation stop hole 31 is set on end face between section 33, can be connect convenient for elastic component 40 with the first rotation stop hole 31.And in this implementation
In example, one end of the separate second step section 33 in First stage 32 is provided with annular groove, can be used for installing sealing element, so may be used
The inner wall of cooperation valve body 10 is sealed, and improves the sealing performance of check valve.
Specifically, the second step section 33 is axially disposed pilot hole 34, guidance set 20 is partially disposed at guiding
In hole 34.Specifically, the guide post 23 of guidance set 20 is arranged in the pilot hole 34, so that piston 30 is along guide post 23
Extending direction is moved.
As shown in Figure 3 and Figure 4, which includes supporting baffle 22 and guide post 23.Wherein, supporting baffle 22 is set
It sets in cavity, the second rotation stop hole 21 is provided in supporting baffle 22.One end of guide post 23 is fixedly connected with supporting baffle 22,
Piston 30 is movably disposed at the other end of guide post 23.Second rotation stop hole 21 is set in supporting baffle 22, bullet can be convenient for
Property part 40 is connect with the second rotation stop hole 21.And it is simple by the guidance set structure that supporting baffle 22 and guide post 23 are formed, it is convenient for
Processing and installation.
Specifically, centre bore 24 and through flow hole 25 are arranged in supporting baffle 22, during one end of guide post 23 is threaded through
In heart hole 24.In order to avoid guide post 23 is moved relative to supporting baffle 22, fastener can be also set between with right
Guide post 23 is fixed, and in the present embodiment, can be attached fixation to guide post 23 and supporting baffle 22 by riveting.It is logical
The setting through flow hole 25 in supporting baffle 22 is crossed, so that piston 30, when opening, fluid can flow to valve body 10 by through flow hole 25
The other end.
Wherein, multiple through flow holes 25 are provided in supporting baffle 22, multiple through flow holes 25 are right centered on centre bore 24
Claim to be arranged in supporting baffle 22.The circulation area that supporting baffle 22 can be improved is arranged such, and conveniently through flow hole 25 is carried out
Processing.Specifically, the through flow hole 25 can be sector structure, to increase stream as far as possible while guaranteeing 22 intensity of supporting baffle
Logical area.
In the present embodiment, which further includes retaining ring 50, and retaining ring 50 is fixed in cavity, and is located at guiding group
The side of the separate piston 30 of part 20 relative to the movement of valve body 10 and is rotated by setting retaining ring 50 come restricted guidance component 20.
One end of elastic component 40 is connect, by the another of elastic component 40 by the check valve provided through this embodiment with piston 30
One end is connect with guidance set 20, can so prevent the band piston 30 in fluid flowing of piston 30 from rotating, and then can be to avoid
Piston 30 rubs with other components, reduces noise when check valve uses, and can reduce the abrasion of piston 30, extends single
To the service life of valve.Also, the one-way valve structures are simple, facilitate processing and dismounting.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of check valve, which is characterized in that the check valve includes:
Valve body (10) has cavity；
Guidance set (20), is fixed in the cavity；
Piston (30) is movably disposed on the guidance set (20)；
Spline structure is arranged between the piston (30) and the guidance set (20), and the spline structure is for limiting institute
Piston (30) is stated to rotate relative to the guidance set (20).
2. check valve according to claim 1, which is characterized in that the check valve further includes elastic component (40), the bullet
One end of property part (40) is abutted with the piston (30), and the other end and the guidance set (20) of the elastic component (40) support
It connects, is all provided between the elastic component (40) and the piston (30), between the elastic component (40) and the guidance set (20)
It is equipped with the spline structure.
3. check valve according to claim 2, which is characterized in that be provided with the first rotation stop hole on the piston (30)
(31), one end and first rotation stop hole (31) of the elastic component (40) are mating.
4. check valve according to claim 2, which is characterized in that be provided with the second rotation stop hole on the guidance set (20)
(21), the other end of the elastic component (40) and second rotation stop hole (21) are mating.
5. check valve according to claim 3, which is characterized in that the piston (30) includes first step interconnected
Section (32) and second step section (33), the diameter of the First stage (32) are greater than the diameter of the second step section (33),
First rotation stop hole (31), institute are provided on end face between the First stage (32) and the second step section (33)
State the side that guidance set (20) are located at the second step section (33).
6. check valve according to claim 5, which is characterized in that the second step section (33) is axially disposed guiding
Hole (34), the guidance set (20) are partially disposed in the pilot hole (34).
7. check valve according to claim 4, which is characterized in that the guidance set (20) includes:
Supporting baffle (22) is arranged in the cavity, is provided with second rotation stop hole (21) on the supporting baffle (22)；
One end of guide post (23), the guide post (23) is fixedly connected with the supporting baffle (22), and the piston (30) can
It is movably arranged at the other end of the guide post (23).
8. check valve according to claim 7, which is characterized in that be provided with centre bore (24) on the supporting baffle (22)
And through flow hole (25), one end of the guide post (23) are threaded through in the centre bore (24).
9. check valve according to claim 8, which is characterized in that be provided with multiple through flow holes on the supporting baffle (22)
(25), multiple through flow holes (25) are symmetricly set on the supporting baffle (22) centered on the centre bore (24).
10. check valve according to claim 1, which is characterized in that the check valve further include:
Retaining ring (50), is fixed in the cavity, and be located at separate the piston (30) of the guidance set (20)
Side, the retaining ring (50) is for limiting relatively described valve body (10) activity of the guidance set (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821459744.XU CN208967124U (en) | 2018-09-04 | 2018-09-04 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821459744.XU CN208967124U (en) | 2018-09-04 | 2018-09-04 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208967124U true CN208967124U (en) | 2019-06-11 |
Family
ID=66754761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821459744.XU Active CN208967124U (en) | 2018-09-04 | 2018-09-04 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208967124U (en) |
-
2018
- 2018-09-04 CN CN201821459744.XU patent/CN208967124U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |