CN206112100U - Return water overflow structure - Google Patents
Return water overflow structure Download PDFInfo
- Publication number
- CN206112100U CN206112100U CN201621128592.6U CN201621128592U CN206112100U CN 206112100 U CN206112100 U CN 206112100U CN 201621128592 U CN201621128592 U CN 201621128592U CN 206112100 U CN206112100 U CN 206112100U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- flow structure
- backwater
- seat
- 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.)
- Active
Links
Landscapes
- Revetment (AREA)
Abstract
The utility model belongs to the technical field of the plunger pump, refer in particular to a return water overflow structure, be provided with the valve pocket in returning water stand, be provided with the valve rod mount pad on the upper portion of valve pocket, the lower part is provided with the disk seat, is provided with the valve rod mounting hole on the valve rod mount pad, the valve rod runs through the valve rod mount pad, is provided with the case at the lower extreme of valve rod, and the valve rod can be along valve rod mounting hole axial displacement, and the case is opened and close with disk seat cooperation realization, the utility model discloses being provided with plastics king gasket and O shape circle between valve rod and the valve rod mount pad, playing sealed effect on the one hand, on the other hand can guarantee reciprocating stably of valve rod, can not produce and rock, prevents the case off tracking, lead to and the disk seat between the leakproofness not good to produce the phenomenon of wearing and tearing.
Description
Technical field：
The utility model belongs to plunger pump technique field, refers in particular to a kind of backwater flow structure.
Background technology：
Backwater overflow valve is generally provided with plunger displacement pump, to reach the effect of pressure release backwater.Backwater overflow valve passes through valve
Core is realized opening and closing with valve seat.The requirement of sealing and service life therefore, between valve element and valve seat is higher.In the course of work
In, need to ensure that valve rod does not rock and then ensure the sealing between valve element and valve seat, prevent current from entering in valve pocket from valve seat,
And make pump to produce pressure, and then cannot normal work.
The content of the invention：
The purpose of this utility model is to provide the backwater flow structure of a kind of compact conformation, good airproof performance.
What the utility model was realized in：
A kind of backwater flow structure, is provided with valve pocket in backwater base, the top of valve pocket be provided with valve rod mounting seat, under
Portion is provided with valve seat, and valve rod installing hole is provided with valve rod mounting seat, and valve rod runs through valve rod mounting seat, sets in the lower end of valve rod
Valve element is equipped with, valve rod can be moved axially along valve rod installing hole, valve element coordinates with valve seat to be realized opening and closing.
In a kind of above-mentioned backwater flow structure, the valve rod installing hole is stepped hole, and top is aperture, and bottom is big
Hole, between the hole wall and valve rod of macropore pad is provided with.
In a kind of above-mentioned backwater flow structure, between the hole wall and valve rod of the macropore O-ring is provided with.
In a kind of above-mentioned backwater flow structure, the pad is King pad.
In a kind of above-mentioned backwater flow structure, the valve rod mounting seat is arranged on the top of valve pocket by fixed cup.
In a kind of above-mentioned backwater flow structure, the fixed cup includes cup, is provided with the upper end of cup convex
Edge, bottom is provided with the through hole passed through for valve rod, and the convex edge of fixed cup is connected on backwater base.
In a kind of above-mentioned backwater flow structure, the valve rod mounting seat is arranged in fixed cup, and valve rod mounting seat
Upper end be provided between the convex edge in convex edge portion, convex edge portion and fixed cup, valve pocket inwall and be provided with O-ring.
In a kind of above-mentioned backwater flow structure, the valve element is ceramic cartridge.
In a kind of above-mentioned backwater flow structure, the valve seat is stainless steel valve seat.
The advantage that the utility model is projected compared to existing technology is：
1st, King pad and O-ring are provided between the utility model valve rod and valve rod mounting seat, are on the one hand played close
The effect of envelope, on the other hand can ensure that moving up and down for valve rod is stable, will not produce and rock, and prevent valve element sideslip, cause with
Poor sealing between valve seat, and produce the phenomenon of abrasion；
2nd, the utility model compact conformation, good sealing effect, long service life.
Description of the drawings：
Fig. 1 is sectional view of the present utility model.
Specific embodiment：
Below the utility model is further described with specific embodiment, referring to Fig. 1：
A kind of backwater flow structure, in backwater base 1 valve pocket 2 is provided with, and is provided with backwater base 1 and is connected with valve pocket 2
Return pipe carry out pressure release backwater.The top of valve pocket 2 is provided with valve rod mounting seat 3, bottom and is provided with valve seat 4, in valve rod peace
Valve rod installing hole is provided with dress seat 3, valve rod 5 runs through valve rod mounting seat 3, the lower end of valve rod 5 is provided with valve element 6, the energy of valve rod 5
Along the axial movement of valve rod installing hole, valve element 6 coordinates with valve seat 4 to be realized opening and closing.When valve element 6 lift off a seat 4 when, water enter valve pocket 2
And by return pipe pressure release backwater.When valve element 6 is connected with the contact of valve seat 4, between current cannot be between valve element 6 and valve seat 4
Overflow between gap, so as to produce pressure.Valve rod of the present utility model 5 is with the connection of valve element 6：Blind hole is provided with valve element 6,
One end of valve rod 5 is plugged in the blind hole, and the axis collinear of valve rod 5, valve element 6 and blind hole.
Specifically, the valve rod installing hole is stepped hole, and top is aperture, and bottom is macropore, in the hole wall and valve of macropore
Pad is provided between bar 5.Pad can be plastic spacer or rubber sheet gasket etc..The present embodiment uses King pad 7.
King pad 7 plays the effect of guiding, meanwhile, the also Packed effect of King pad 7.In assembling, King pad 7
Inner ring and the outer wall of valve rod between for gap connection, between outer ring and macropore hole wall be interference connection.
Further, O-ring 8 is provided between the hole wall of the macropore and valve rod 5.O-ring 8 is matched somebody with somebody with King pad 7
The effect strengthened sealing and be oriented to is closed, is prevented valve rod 5 from producing during moving axially and is rocked, and then drive connection
There is deviation phenomenon in the valve element 6 on valve rod 5, the sealing ultimately resulted between valve element 6 and valve seat 4 is poor, and produces valve element 6
Effect of attrition sealing.
Specifically, the valve rod mounting seat 3 is arranged on the top of valve pocket 2 by fixed cup.The fixed cup includes cup
Body 9, in the upper end of cup 9 convex edge 10 is provided with, and bottom is provided with the through hole passed through for valve rod 5, and the convex edge 10 of fixed cup connects
On backwater base 1.
Correspondingly, the valve rod mounting seat 3 is arranged in fixed cup, and the upper end of valve rod mounting seat 3 is provided with convex edge portion
11, it is provided with O-ring 12 to reach the purpose of waterproof between convex edge portion 11 and convex edge 10, the inwall of valve pocket 2 of fixed cup.
Valve element described in the utility model 6 is ceramic cartridge.The valve element of metal material can certainly be adopted.Comparatively,
The hardness of ceramic cartridge is high, not easy to wear.And the bottom of valve element 6 be circular cone structure, in order to preferably with valve seat 4 in
Heart hole 13 connects and seals.
Valve seat described in the utility model 4 is stainless steel valve seat.It is of course also possible to be other conventional materials.
Operation principle of the present utility model：
During work, the current that plunger displacement pump is produced are made not from the centre bore 13 of valve seat 4 in the fitted seal of valve element 6 and valve seat 4
Overflow, so as to produce pressure, make plunger displacement pump normal work.And valve rod 5, O-ring 8,12, King pad 7 coordinate, make valve rod 5
It is smooth moving up and down, reduce friction and hinder.
When backwater is needed, valve element 6 is backed down, and current enter valve pocket 2 from the centre bore 13 of valve seat 4, finally from return pipe
Carry out pressure release backwater.
Above-described embodiment is only one of preferred embodiment of the present utility model, not limits enforcement of the present utility model with this
Scope, therefore：All equivalence changes done according to shape of the present utility model, structure, principle, all should be covered by guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of backwater flow structure, it is characterised in that：Valve pocket is provided with backwater base, the top of valve pocket is provided with valve rod
Mounting seat, bottom are provided with valve seat, and valve rod installing hole is provided with valve rod mounting seat, and valve rod runs through valve rod mounting seat, in valve
The lower end of bar is provided with valve element, and valve rod can be moved axially along valve rod installing hole, and valve element coordinates with valve seat to be realized opening and closing.
2. a kind of backwater flow structure according to claim 1, it is characterised in that：The valve rod installing hole is stepped hole,
Top is aperture, and bottom is macropore, and between the hole wall and valve rod of macropore pad is provided with.
3. a kind of backwater flow structure according to claim 2, it is characterised in that：Between the hole wall and valve rod of the macropore
It is provided with O-ring.
4. a kind of backwater flow structure according to claim 2, it is characterised in that：The pad is King pad.
5. a kind of backwater flow structure according to claim 1, it is characterised in that：The valve rod mounting seat passes through fixed cup
It is arranged on the top of valve pocket.
6. a kind of backwater flow structure according to claim 5, it is characterised in that：The fixed cup includes cup,
The upper end of cup is provided with convex edge, and bottom is provided with the through hole passed through for valve rod, and the convex edge of fixed cup is connected on backwater base.
7. a kind of backwater flow structure according to claim 6, it is characterised in that：The valve rod mounting seat is arranged on fixation
In cup, and the upper end of valve rod mounting seat is provided between the convex edge in convex edge portion, convex edge portion and fixed cup, valve pocket inwall and is provided with O
Shape circle.
8. a kind of backwater flow structure according to claim 1, it is characterised in that：The valve element is ceramic cartridge.
9. a kind of backwater flow structure according to claim 1, it is characterised in that：The valve seat is stainless steel valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621128592.6U CN206112100U (en) | 2016-10-17 | 2016-10-17 | Return water overflow structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621128592.6U CN206112100U (en) | 2016-10-17 | 2016-10-17 | Return water overflow structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112100U true CN206112100U (en) | 2017-04-19 |
Family
ID=58528835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621128592.6U Active CN206112100U (en) | 2016-10-17 | 2016-10-17 | Return water overflow structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112100U (en) |
-
2016
- 2016-10-17 CN CN201621128592.6U patent/CN206112100U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216742872U (en) | Electronic expansion valve | |
| CN204971669U (en) | Water pick | |
| CN206112100U (en) | Return water overflow structure | |
| CN205479621U (en) | Oxygen production electromagnetic valve | |
| CN206246719U (en) | Float ball valve | |
| CN105650329A (en) | Ultrahigh-pressure large-caliber electromagnetic valve | |
| CN206221683U (en) | A kind of soft sealer | |
| CN205978521U (en) | Cage type regulating valve | |
| CN205728633U (en) | Nib of making up airtight construction | |
| CN205504030U (en) | Low temperature check valve's valve assembly | |
| CN207454841U (en) | The check-valves of dual regulation | |
| CN204312745U (en) | A kind of gate valve | |
| CN203743476U (en) | Pollution-free metal membrane seal ball valve | |
| CN202327196U (en) | Hard seal ball valve | |
| CN103277556B (en) | Temperature control valve | |
| CN208348536U (en) | A kind of crystallization baiting valve | |
| CN206184688U (en) | Diaphragm type glue dropping valve | |
| CN205618733U (en) | Novel universal valve device | |
| CN211820754U (en) | Shutoff valve capable of being unfolded downwards | |
| CN204312744U (en) | Gate valve | |
| CN210164994U (en) | Right-angle stop valve | |
| CN207634719U (en) | A kind of drain tap assembly of drier | |
| CN205423846U (en) | Linear sealing governing valve | |
| CN209990977U (en) | Plunger valve | |
| CN209909169U (en) | Slurry valve with guide function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |