CN207005400U - A kind of self sealss check-valves - Google Patents
A kind of self sealss check-valves Download PDFInfo
- Publication number
- CN207005400U CN207005400U CN201720421273.2U CN201720421273U CN207005400U CN 207005400 U CN207005400 U CN 207005400U CN 201720421273 U CN201720421273 U CN 201720421273U CN 207005400 U CN207005400 U CN 207005400U
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- Prior art keywords
- check
- flap
- fixed plug
- self sealss
- valves
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Abstract
The utility model discloses a kind of self sealss check-valves, including check valve body, bonnet is installed at the top of the check valve body, the inside of the bonnet is provided with guide pin bushing, and flap is provided with below the guide pin bushing, fixed plug is provided with below the flap, the fixed plug is internally provided with buffer channel, and the bottom of fixed plug is provided with valve seat, the check valve body is internally provided with medium channel, and the exterior ring cap of the flap and fixed plug is provided with preloading spring.The utility model is provided with back-up ring between fixed plug and valve seat, form a seal structures, effectively prevent gas or liquid from entering to cause to corrode to preloading spring, extend the service life of the self sealss check-valves, in the buffer channel for being internally provided with corresponding flap motion of fixed plug, so as to delay movement velocity when flap is closed, avoid clashing, avoid scene from taking place frequently and repair or safeguard.
Description
Technical field
Auto parts and components field is the utility model is related to, specifically a kind of self sealss check-valves.
Background technology
Check-valves is also known as check valve or non-return valve, and its effect is to prevent the medium in pipeline from flowing backwards.The bottom that pump sump closes
Valve falls within check-valves class.Opening and closing element is voluntarily turned on and off by media flow and strength, with prevent the valve that medium flows backwards
Check-valves.Check-valves belongs to automatic valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to be flowed to a direction
It is dynamic, to try to avert accidents.
Existing check-valves is smaller in the pressure difference due to both ends, does not have self sealss recovery capability, secondly in existing a small number of tools
Closure all has larger impulsive force to flap every time in the check-valves of standby self sealss recovery capability, so as to cause valve seat to receive frequently
Impact and damage, valve leaks are caused, for this it is proposed that a kind of self sealss check-valves solves the problem present on.
Utility model content
The purpose of this utility model is to provide a kind of self sealss check-valves, with solve check-valves of the prior art by
Pressure difference in both ends is smaller, does not have self sealss recovery capability, secondly possesses the check-valves of self sealss recovery capability in existing minority
Closure all has larger impulsive force to middle flap every time, is damaged so as to cause valve seat to receive frequent impact, causes valve leaks
The problem of.
To achieve the above object, the utility model provides following technical scheme：A kind of self sealss check-valves, including check-valves
Valve body, bonnet is installed at the top of the check valve body, the inside of the bonnet is provided with guide pin bushing, set below the guide pin bushing
Flap is equipped with, fixed plug is provided with below the flap, the fixed plug is internally provided with buffer channel, and fixes plug
Bottom is provided with valve seat, and the check valve body is internally provided with medium channel, and the outer shroud of the flap and fixed plug is arranged
There is preloading spring.
Preferably, the top insertion of the bonnet is provided with hanger.
Preferably, the outer ring of the guide pin bushing is provided with sealing ring.
Preferably, the both sides of the check valve body are provided with adpting flange.
Preferably, the bottom of the buffer channel is provided with cushion pad, and the cushion pad is arcuate structure.
Preferably, the joining place outer shroud of the fixed plug and valve seat is provided with back-up ring.
Compared with prior art, the beneficial effects of the utility model are：The utility model design science is reasonable, safe operation
Convenient, the utility model devises the self sealss check-valves that a kind of self sealss recovery capability is good, and service life is grown, the utility model
Back-up ring is provided between fixed plug and valve seat, forms a seal structures, effectively prevents gas or liquid from entering to pretension bullet
Spring is caused to corrode, and extends the service life of the self sealss check-valves, and the slow of corresponding flap motion is internally provided with fixed plug
Passage is rushed, so as to delay movement velocity when flap is closed, avoids clashing, avoids scene from taking place frequently and repairs or safeguard.
Brief description of the drawings
Fig. 1 is a kind of sectional view of self sealss check-valves of the utility model.
Fig. 2 is a kind of fixation plug structure schematic diagram of self sealss check-valves of the utility model.
In figure：1- guide pin bushings, 2- bonnets, 3- check valve bodies, 4- adpting flanges, 5- medium channels, 6- valve seats, 7- back-up rings,
8- fixes plug, 9- preloading springs, 10- flaps, 11- hangers, 12- sealing rings, 13- buffer channels, 131- cushion pads.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1~2, in the utility model embodiment, a kind of self sealss check-valves, including check valve body 3, non-return
The top of valve body 3 is provided with bonnet 2, and the inside of bonnet 2 is provided with guide pin bushing 1, and the lower section of guide pin bushing 1 is provided with flap 10, flap
10 lower section is provided with fixed plug 8, and fixed plug 8 is internally provided with buffer channel 13, and the bottom of fixed plug 8 is provided with valve seat
6, due to the impulsive force of medium, valve seat 6 is lifted up, now preloading spring 9 is in contraction state, and flap 10 stretches into buffer channel
Inside 13, check valve body 3 is internally provided with medium channel 5, and medium is entered by medium channel 5, flap 10 and fixed plug 8
Exterior ring cap be provided with preloading spring 9.
The top insertion of bonnet 2 is provided with hanger 11, and the outer ring of guide pin bushing 1 is provided with sealing ring 12, and the two of check valve body 3
Side is provided with adpting flange 4, and the bottom of buffer channel 13 is provided with cushion pad 131, and cushion pad 131 is arcuate structure, cushion pad
131 avoid the strong impact force of flap 10 from damaging valve seat 6, and so as to extend the service life of valve seat 6, fixed plug 8 is connected with valve seat 6
Place's outer shroud is provided with back-up ring 7, is provided with back-up ring 7 between fixed plug 8 and valve seat 6, forms a seal structures, effectively prevent gas
Or liquid enter preloading spring 9 is caused to corrode.
Operation principle of the present utility model is：After the self sealss check-valves is installed by normal procedure, in use, medium
Entered by medium channel 5, due to the impulsive force of medium, valve seat 6 is lifted up, now preloading spring 9 is in contraction state,
Flap 10 is stretched into inside buffer channel 13, and cushion pad 131 avoids the strong impact force of flap 10 from damaging valve seat 6, so as to extend valve seat 6
Service life, while be provided with back-up ring 7 between fixed plug 8 and valve seat 6, form a seal structures, effectively prevent gas or
Liquid enters to be caused to corrode to preloading spring 9.
In description of the present utility model, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
Portion ", " other end ", " on ", " side ", " top ", " interior ", " front portion ", " center ", the orientation of the instruction such as " both ends " or position close
It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as to limitation of the present utility model.
In addition, term " first ", " second ", " the 3rd ", " the 4th " are only used for describing purpose, and it is not intended that instruction or
Relative importance or the implicit quantity for indicating indicated technical characteristic are implied, thus, defines " first ", " second ", " the
Three ", at least one this feature can be expressed or be implicitly included to the feature of " the 4th ".
In the utility model, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection ", " Gu
Calmly ", the term such as " spinning " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；
Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite, for this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (6)
1. a kind of self sealss check-valves, including check valve body (3), it is characterised in that the top peace of the check valve body (3)
Equipped with bonnet (2), the inside of the bonnet (2) is provided with guide pin bushing (1), and flap (10), institute are provided with below the guide pin bushing (1)
State and fixed plug (8) is provided with below flap (10), the fixed plug (8) is internally provided with buffer channel (13), and fixed
The bottom of plug (8) is provided with valve seat (6), and the check valve body (3) is internally provided with medium channel (5), the flap
(10) exterior ring cap with fixed plug (8) is provided with preloading spring (9).
A kind of 2. self sealss check-valves according to claim 1, it is characterised in that the top insertion peace of the bonnet (2)
Equipped with hanger (11).
3. a kind of self sealss check-valves according to claim 1, it is characterised in that the outer ring of the guide pin bushing (1) is provided with
Sealing ring (12).
A kind of 4. self sealss check-valves according to claim 1, it is characterised in that the both sides of the check valve body (3)
It is provided with adpting flange (4).
5. a kind of self sealss check-valves according to claim 1, it is characterised in that the bottom of the buffer channel (13) is set
Cushion pad (131) is equipped with, the cushion pad (131) is arcuate structure.
6. a kind of self sealss check-valves according to claim 1, it is characterised in that the fixed plug (8) and valve seat (6)
Joining place outer shroud is provided with back-up ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720421273.2U CN207005400U (en) | 2017-04-18 | 2017-04-18 | A kind of self sealss check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720421273.2U CN207005400U (en) | 2017-04-18 | 2017-04-18 | A kind of self sealss check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005400U true CN207005400U (en) | 2018-02-13 |
Family
ID=61441906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720421273.2U Active CN207005400U (en) | 2017-04-18 | 2017-04-18 | A kind of self sealss check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005400U (en) |
-
2017
- 2017-04-18 CN CN201720421273.2U patent/CN207005400U/en active Active
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| GR01 | Patent grant |