CN209540123U - A kind of check valve open in usual - Google Patents
A kind of check valve open in usual Download PDFInfo
- Publication number
- CN209540123U CN209540123U CN201822186237.XU CN201822186237U CN209540123U CN 209540123 U CN209540123 U CN 209540123U CN 201822186237 U CN201822186237 U CN 201822186237U CN 209540123 U CN209540123 U CN 209540123U
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- CN
- China
- Prior art keywords
- valve
- reset
- bottom cover
- spool bore
- mandril
- Prior art date
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Abstract
The utility model discloses a kind of check valves open in usual, including valve seat, sealing mandril, spring, reset lever and valve bottom cover；The valve seat is equipped with spool bore, and it is cylindrical at both ends that the middle part of spool bore, which is taper,；Side wall is equipped with the refluence hole being connected to spool bore at valve seat upper end；The sealing mandril includes the sealing of taper and the reset portion of cylinder, and reset portion passes through spool bore upper part, and reset portion diameter is less than the diameter of spool bore upper part, and the side of sealing is equipped with O-ring seals；The reset lever is mounted at the top of valve seat, and reset lever is equipped with reset hole；Valve bottom cover is mounted on seat bottom portion, and valve bottom cover is equipped with the through-hole being connected to spool bore；It seals and is equipped with spring between mandril bottom and valve bottom cover.The utility model structure is simple, compact, it is easy to operate, convenient for control, the utility model realizes check valve and maintains a normally open state, moreover, will seal mandril when movable reset pull rod is moved to the left by spring-force driven dual and be pushed into reset lever hole, mandril is sealed simultaneously and squeezes O-ring seals when two side clearance of valve chamber is blocked, and realizes unidirectional blocking.
Description
Technical field
The utility model belongs to fluid valve field, more particularly, to a kind of check valve open in usual.
Background technique
Check valve is a kind of for controlling the valve in fluid media (medium) flowing direction, and fluid media (medium) only allows to flow in one direction
It is logical, and the intransitable valve in another direction, usual this valve is automatic work, the Fluid pressure flowed in one direction
Under effect, flap is opened；When fluid opposite direction flowing, valve seat is acted on by the flap that is overlapped certainly of Fluid pressure and flap, thus
Cutting flowing.In some special occasions, check valve is needed to maintain a normally open, is only steeply risen in fluid media (medium) flow velocity or pressure
Under the conditions of, by unidirectional valve closure.Using some more complicated valve groups, such as the combination of pressure sensor and solenoid valve can
Realize the function, but because structure is complicated, production and application cost is higher, and normally closed type check valve is more general in the prior art
Time, but the structure of check valve open in usual is still rarer.
Summary of the invention
In order to solve the above-mentioned technical problem, it is simple, compact to provide a kind of structure for the utility model, convenient for control, it is not easy to
The check valve open in usual that fluid medium impacts, it realizes check valve and maintains a normally open state, moreover, when movable reset is drawn
Bar is moved to the left, and will be sealed mandril by spring-force driven dual and is pushed into reset lever hole, while seal mandril and squeezing O-ring seals
When so that two side clearance of valve chamber being blocked, unidirectional blocking is realized.
The technical scheme adopted by the utility model is a kind of check valve open in usual, including valve seat, sealing mandril, spring,
Reset lever and valve bottom cover；The valve seat is equipped with spool bore, and it is cylindrical at both ends that the middle part of spool bore, which is taper,；Valve
Side wall is equipped with the refluence hole being connected to spool bore at seat upper end；The sealing mandril includes the sealing and cylinder of taper
Reset portion, reset portion pass through spool bore upper part, reset portion diameter be less than spool bore upper part diameter, sealing
Side is equipped with O-ring seals；The reset lever is mounted at the top of valve seat, and reset lever is equipped with reset hole；Valve bottom cover
It is mounted on seat bottom portion, valve bottom cover is equipped with the through-hole being connected to spool bore；It seals and is equipped with bullet between mandril bottom and valve bottom cover
Spring.
It further include top cover in above-mentioned check valve open in usual, top cover is fixedly mounted at the top of valve seat, is formed at the top of valve seat
The slideway of reset lever, the reset lever are placed in slideway.
It further include clamp nut in above-mentioned check valve open in usual, clamp nut is mounted on the through hole of valve bottom cover, compresses
Swivel nut is fixedly installed in nut.
In above-mentioned check valve open in usual, two sides are fastened by soket head cap screw between the valve bottom cover and valve seat, valve
O-ring seals are equipped between bottom cover and seat bottom portion.
In above-mentioned check valve open in usual, spring washer is equipped between soket head cap screw and valve bottom cover.
Compared with prior art, the utility model has the advantages that:
1. the utility model is compact-sized, outer dimension is small, and especially sealing mandril size is smaller, can be used as check valve
One component is installed among valve chamber, saves more installations and working space for other component.
2. the utility model is by the way that movable reset pull rod to be moved to the left, so that sealing mandril is pushed into reset lever hole,
To which by closed check valve, this structure is simple and convenient to operate.
3. the utility model is simple and reliable for structure, light-weight, be convenient for hydraulic control, it is easy to manufacture, use cost compared with
It is low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under the utility model normally open.
Fig. 2 is the structural schematic diagram after the utility model closing.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1, 2, the utility model includes valve seat 10, sealing mandril 7, spring 5, reset lever 8, top cover 9 and valve
Bottom cover 13；The valve seat 10 is equipped with spool bore, and it is cylindrical at both ends that the middle part of spool bore, which is taper,.10 upper end of valve seat
Place's side wall is equipped with the refluence hole 11 being connected to spool bore.Top cover 9 is fixedly mounted on the top of valve seat 10, the top with valve seat 10
The slideway of reset lever 8 is formed, the reset lever 8 is placed in slideway.The sealing mandril 7 includes the sealing of taper
And cylindrical reset portion, reset portion pass through spool bore upper part, reset portion diameter is less than the diameter of spool bore upper part,
The side of sealing is equipped with O-ring seals 6；Sealing can cooperate with the conical section of spool bore to be sealed.Described
Reset lever 8 is equipped with reset hole.Pass through the connection fastening of soket head cap screw 2, soket head cap screw 2 between valve bottom cover 13 and valve seat 10
Spring washer 3 is equipped between valve bottom cover 13, it is locking for soket head cap screw 2.O is equipped between 10 bottom of valve bottom cover 13 and valve seat
Shape sealing ring 12, valve bottom cover 13 are equipped with the through-hole being connected to spool bore；It seals and is equipped with spring between mandril bottom and valve bottom cover.
Clamp nut 1 is mounted on the through hole of valve bottom cover, and swivel nut 4 is fixedly installed in clamp nut 1.
Under normal condition, there are certain gaps with 10 wall inner portion of valve seat for sealing mandril 7, pass through two side clearances and valve seat
Refluence hole 11 communicate and draw liquid, so as to form normally open between sealing mandril 7 and 10 wall inner portion two sides of valve seat, such as
Shown in Fig. 1.
Only when movable reset pull rod 8 is moved to the left, mandril 7 will be sealed by the effect of spring force and be pushed into reset lever
In 8 reset hole, while sealing the extruding O-ring seals 6 of mandril 7 and two side clearance of valve chamber is plugged, while fluid media (medium) is not
It can be flowed into out of sealing mandril 7 two sides and 10 wall inner portion gap of valve seat, thus by unidirectional valve closure, as shown in Figure 2.
Claims (5)
1. a kind of check valve open in usual, it is characterized in that: including valve seat, sealing mandril, spring, reset lever and valve bottom cover；It is described
Valve seat be equipped with spool bore, the middle part of spool bore is taper, is cylinder at both ends；Side wall is equipped with and valve at valve seat upper end
The refluence hole of core bore connection；The sealing mandril includes that the sealing of taper and the reset portion of cylinder, reset portion pass through valve
Core bore upper part, reset portion diameter are less than the diameter of spool bore upper part, and the side of sealing is equipped with O-ring seals；
The reset lever is mounted at the top of valve seat, and reset lever is equipped with reset hole；Valve bottom cover is mounted on seat bottom portion, valve bottom cover
It is equipped with the through-hole being connected to spool bore；It seals and is equipped with spring between mandril bottom and valve bottom cover.
2. check valve open in usual according to claim 1, it is characterized in that: further including top cover, top cover is fixedly mounted on valve seat
Top, with the slideway for forming reset lever at the top of valve seat, the reset lever is placed in slideway.
3. check valve open in usual according to claim 2, it is characterized in that: further including clamp nut, clamp nut is mounted on
The through hole of valve bottom cover is fixedly installed with swivel nut in clamp nut.
4. check valve open in usual according to claim 1, it is characterized in that: two sides pass through between the valve bottom cover and valve seat
Soket head cap screw fastening, is equipped with O-ring seals between valve bottom cover and seat bottom portion.
5. check valve open in usual according to claim 4, it is characterized in that: being equipped with spring between soket head cap screw and valve bottom cover
Washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186237.XU CN209540123U (en) | 2018-12-20 | 2018-12-20 | A kind of check valve open in usual |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186237.XU CN209540123U (en) | 2018-12-20 | 2018-12-20 | A kind of check valve open in usual |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209540123U true CN209540123U (en) | 2019-10-25 |
Family
ID=68265892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822186237.XU Active CN209540123U (en) | 2018-12-20 | 2018-12-20 | A kind of check valve open in usual |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209540123U (en) |
-
2018
- 2018-12-20 CN CN201822186237.XU patent/CN209540123U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |