CN206860968U - Axial flow type check valve - Google Patents
Axial flow type check valve Download PDFInfo
- Publication number
- CN206860968U CN206860968U CN201720653503.8U CN201720653503U CN206860968U CN 206860968 U CN206860968 U CN 206860968U CN 201720653503 U CN201720653503 U CN 201720653503U CN 206860968 U CN206860968 U CN 206860968U
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- Prior art keywords
- valve
- flap
- rod
- valve seat
- guide rod
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Abstract
The utility model discloses a kind of axial flow type check valve, including valve body, valve seat, flap, valve rod, flap guide rod, spring, O-ring seal, passage is provided with valve body, valve seat is embedded on valve body, the side of valve seat is in contact with one end of flap, the other end of flap and the side of valve rod connect, flap guide rod is connected with the opposite side periphery wall of valve rod, the spring being set on valve rod is arranged between flap and flap guide rod, annular groove is provided with the periphery wall of valve seat, O-ring seal is set in the annular groove of valve seat, the outer ring of O-ring seal and the inwall of valve body are in close contact, the utility model sealing property is high, have the function that high/low temperature is explosion-proof.
Description
Technical field
It the utility model is related to valve, and in particular to the axial flow type check valve for high/low temperature requirement of explosion proof.
Background technology
Axial flow type check valve is a kind of high performance check valve, prevents medium from flowing backwards harm in extensive utilization pipe-line system, main
Protection system equipment is played to be used.Sealing device on axial flow type check valve is essential, but part sealing device is very
Complexity, cost is high, and is had the disadvantage in that in terms of sealing property, therefore, it is necessary to designs a kind of relatively simple and high performance axle
Flow type back valve.
The content of the invention
In order to solve the above problems, the utility model provides a kind of axial flow type check valve.
The technical solution of the utility model is：A kind of axial flow type check valve, including valve body, valve seat, flap, valve rod, flap
Guide rod, spring, O-ring seal, passage are provided with valve body, valve seat is embedded on valve body, the side of valve seat and the one of flap
End is in contact, and the other end of flap and the side of valve rod are connected, and flap guide rod is connected with the opposite side periphery wall of valve rod, are covered
The spring being located on valve rod is arranged between flap and flap guide rod, and annular groove, O-shaped sealing are provided with the periphery wall of valve seat
Snare is located in the annular groove of valve seat, and the outer ring of O type sealing rings and the inwall of valve body are in close contact.
Further, the outer wall of the inwall of the valve body and valve seat is in close contact.
Further, the flap guide rods of both sides is shaped as taper pawl.
Further, the pars intermedia of the flap guide rod is obliquely installed, and the terminal part of flap guide rod is parallel to valve rod.
The beneficial effects of the utility model are：It is arranged on the O types sealing being provided with the periphery wall of valve seat in annular groove
Circle is in close contact with valve body, is made to be brought into close contact between valve body, valve seat, O type sealing rings, is prevented the leakage of medium, sealing
Can be high, have the function that high/low temperature is explosion-proof, improve the service life of valve.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings, the present embodiment is not formed to this
The limitation of utility model.
A kind of axial flow type check valve, as shown in figure 1, including valve body 1, valve seat 2, flap 3, valve rod 4, flap guide rod 5, bullet
Spring 6, O types sealing ring 7.
Passage is provided with valve body 1, valve seat 2 is embedded on valve body 1, and the inwall of valve body 1 closely connects with the outer wall of valve seat 2
Touch.The side of valve seat 2 is in contact with one end of flap 3, and the other end of flap 3 is connected with the side of valve rod 4, valve rod 4 it is another
Flap guide rod 5 is connected with the periphery wall of side, the pars intermedia 501 of flap guide rod 5 is obliquely installed, the end of flap guide rod 5
Portion 502 is parallel to valve rod 4, the formation taper pawl of the flap guide rod 5 of both sides.
Spring 6 is set on valve rod 1, and spring 6 is arranged between flap 3 and flap guide rod 5.
Annular groove is provided with the periphery wall of valve seat 2, O types sealing ring 7 is set in the annular groove of valve seat 2, and O types are close
The outer ring of seal is in close contact with valve body 1, and O type sealing rings make the sealing property of flap when closed relatively reliable.
Medium flows to valve seat 2 from flap 3, produces pressure to flap 3 during media flow, and then passes to valve seat 2,
Valve seat 2 is pressurized and expands outwardly to form self-tightening sealing power, makes to be brought into close contact between valve body 1, valve seat 2, O types sealing ring 7, prevents
The leakage of medium.
It is described above, only it is preferred embodiment of the present utility model, is not used in limitation the utility model, this area skill
Art personnel can make various modifications or equivalent substitution to the utility model in essence of the present utility model and protection domain,
This modification or equivalent substitution also should be regarded as in the protection domain of technical solutions of the utility model.
Claims (4)
- A kind of 1. axial flow type check valve, it is characterised in that：Including valve body, valve seat, flap, valve rod, flap guide rod, spring, O Type sealing ring, passage is provided with valve body, valve seat is embedded on valve body, and the side of valve seat is in contact with one end of flap, flap The other end and the side of valve rod connect, be connected with flap guide rod on the opposite side periphery wall of valve rod, be set on valve rod Spring is arranged between flap and flap guide rod, and annular groove is provided with the periphery wall of valve seat, and O-ring seal is set in valve seat Annular groove in, the inwall of the outer ring of O-ring seal and valve body is in close contact.
- 2. axial flow type check valve according to claim 1, it is characterised in that：The inwall of the valve body and the outer wall of valve seat are tight Contiguity is touched.
- 3. axial flow type check valve according to claim 1, it is characterised in that：The flap guide rod of both sides is shaped as Taper pawl.
- 4. axial flow type check valve according to claim 1, it is characterised in that：The pars intermedia of the flap guide rod is tilted and set Put, the terminal part of flap guide rod is parallel to valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653503.8U CN206860968U (en) | 2017-06-07 | 2017-06-07 | Axial flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720653503.8U CN206860968U (en) | 2017-06-07 | 2017-06-07 | Axial flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860968U true CN206860968U (en) | 2018-01-09 |
Family
ID=60831095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720653503.8U Active CN206860968U (en) | 2017-06-07 | 2017-06-07 | Axial flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561115A (en) * | 2019-10-23 | 2019-12-13 | 江苏神通阀门股份有限公司 | assembly method of support guide shaft structure of cryogenic axial flow check valve |
-
2017
- 2017-06-07 CN CN201720653503.8U patent/CN206860968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561115A (en) * | 2019-10-23 | 2019-12-13 | 江苏神通阀门股份有限公司 | assembly method of support guide shaft structure of cryogenic axial flow check valve |
| CN110561115B (en) * | 2019-10-23 | 2021-05-28 | 江苏神通阀门股份有限公司 | Assembly method of support guide shaft structure of cryogenic axial flow check valve |
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| GR01 | Patent grant |