CN207316157U - A kind of butterfly plate check-valves - Google Patents
A kind of butterfly plate check-valves Download PDFInfo
- Publication number
- CN207316157U CN207316157U CN201721304301.9U CN201721304301U CN207316157U CN 207316157 U CN207316157 U CN 207316157U CN 201721304301 U CN201721304301 U CN 201721304301U CN 207316157 U CN207316157 U CN 207316157U
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- CN
- China
- Prior art keywords
- axis pin
- butterfly plate
- neck
- valve
- valve body
- Prior art date
- 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.)
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Abstract
The utility model discloses a kind of butterfly plate check-valves, belonging to valve technology field includes valve body, valve seat and butterfly plate, the butterfly plate includes neck, sealing, the neck is connected with sealing, the sealing coordinates with valve base sealing, neck is equipped with axis pin, protrude neck in the both ends of the axis pin, the axis pin base of two faces is equipped with the valve body, the distance between two axis pin bases are adapted with the width of neck, and the axis pin base is hook, and the body top is equipped with valve deck, valve deck is connected with valve body screw thread, and the left and right both ends of valve body are equipped with internal thread.The utility model is not only able to avoid the fluid leakage problems of axis pin and valve body junction, also has the function that easy to repair.
Description
Technical field
It the utility model is related to field of check valves, more particularly to a kind of butterfly plate check-valves.
Background technology
The swing check valve of existing originally water conveying system, is to set through hole in valve body, is set on through hole
Nut and axis pin to fixed butterfly plate, during valve working reason axis pin transmission butterfly plate cause axis pin hold-doun nut loosen or nut at
Sealing ring aging, causes valve leakage out of steam system, influences to use, and adds the working service cost of valve.
Utility model content
The utility model aims to provide a kind of butterfly plate check-valves, and axis pin need not run through valve body, avoid at axis pin sealing
Fluid leakage problems.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：A kind of butterfly plate check-valves, including valve body,
Valve seat and butterfly plate, the butterfly plate include neck, sealing, and the neck is connected with sealing, the sealing and valve base sealing
Coordinating, neck is equipped with axis pin, and neck is protruded at the both ends of the axis pin, the axis pin base equipped with two faces in the valve body, and two
The distance between a axis pin base is adapted with the width of neck.
The axis pin is arranged on the top of neck.
The side wall face of the neck is equipped with two protrusion axles, and the protrusion axle is axis pin.
The axis pin base is arranged on the top of valve seat.
The axis pin base is the groove of upward opening.
The axis pin base is hook.
Further, the body top is equipped with valve deck, and valve deck is connected with valve body screw thread, and the left and right both ends of valve body are equipped with
Internal thread.
The structure design of the utility model is reasonable, and manufacture cost is low, and the setting of built-in axis pin, avoids axis pin and be connected with valve body
The fluid leakage problems at place, and the setting of valve interior wall upper pin seat, avoid the abrasion of valve body wall shell, add valve body use
Service life, while also have the function that to be convenient for changing butterfly plate.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is A-A sectional views in Fig. 1.
In figure：1- valve bodies, 2- valve decks, 3- butterfly plates, 4- valve seats.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with new.
As shown in Figs. 1-2, a kind of butterfly plate check-valves, including valve body 1, valve deck 2, valve seat 4 and butterfly plate 3, the valve deck 2 are set
At the top of valve body 1, valve deck 2 is threadedly coupled with valve body 1, and the left and right both ends of valve body 1 are equipped with the internal thread being connected with pipeline,
Valve body 1 forms valve cavity with valve deck 2, and the valve seat 4 is arranged in valve cavity, and 4 surface of valve seat has sealing surface, the butterfly
Plate 3 includes neck and sealing, and neck is connected with sealing, and sealing coordinates with the sealing of valve seat 4, and the top of neck is equipped with pin
Axis, the both ends of axis pin protrude the neck, the axis pin base of two faces are equipped with the valve body 1, and axis pin base is arranged on valve seat 4
Top, axis pin base are the groove of upward opening, and groove is adapted with axis pin, alternatively, axis pin base is hook, under free state, butterfly
Plate 3 and 4 palette of valve seat.
Medium flow field is out-of-date when having, and butterfly plate 3 is under medium promotion, and axis pin rotates on the axis pin base of coupling type, and butterfly plate 3 is upward
Open, simultaneously as the stop of valve deck 2, butterfly plate 3 has a maximum opening, for preventing axis pin from departing from from axis pin base, when
During medium reverse flow, butterfly plate 3 falls, closed valve seat 4, and block media is flow backwards.
Certainly, the utility model can also have other various embodiments, without departing substantially from the utility model spirit and its essence
In the case of, those skilled in the art can make various corresponding changes and deformation, but these phases according to the utility model
The change and deformation answered should all belong to the scope of the claims appended by the utility model.
Claims (7)
- A kind of 1. butterfly plate check-valves, it is characterised in that：Including valve body (1), valve seat (4) and butterfly plate (3), the butterfly plate (3) includes Neck, sealing, the neck are connected with sealing, and the sealing coordinates with valve seat (4) sealing, and neck is equipped with axis pin, institute Neck is protruded at the both ends for stating axis pin, is equipped with the axis pin base of two faces in the valve body (1), the distance between two axis pin bases It is adapted with the width of neck.
- 2. butterfly plate check-valves according to claim 1, it is characterised in that：The axis pin is arranged on the top of neck.
- 3. butterfly plate check-valves according to claim 1, it is characterised in that：The side wall face of the neck be equipped with two it is convex Shaft, the protrusion axle are axis pin.
- 4. butterfly plate check-valves according to claim 1, it is characterised in that：The axis pin base is arranged on the top of valve seat (4).
- 5. according to the butterfly plate check-valves described in claim 1,2,3 or 4, it is characterised in that：The axis pin base is upward opening Groove.
- 6. according to the butterfly plate check-valves described in claim 1,2,3 or 4, it is characterised in that：The axis pin base is hook.
- 7. butterfly plate check-valves according to claim 1, it is characterised in that：Valve deck (2), valve are equipped with the top of the valve body (1) Lid (2) is threadedly coupled with valve body (1), and valve body (1) left and right both ends are equipped with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721304301.9U CN207316157U (en) | 2017-09-30 | 2017-09-30 | A kind of butterfly plate check-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721304301.9U CN207316157U (en) | 2017-09-30 | 2017-09-30 | A kind of butterfly plate check-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207316157U true CN207316157U (en) | 2018-05-04 |
Family
ID=62429346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721304301.9U Active CN207316157U (en) | 2017-09-30 | 2017-09-30 | A kind of butterfly plate check-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207316157U (en) |
-
2017
- 2017-09-30 CN CN201721304301.9U patent/CN207316157U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |