CN207064739U - A kind of DRV - Google Patents
A kind of DRV Download PDFInfo
- Publication number
- CN207064739U CN207064739U CN201720817816.2U CN201720817816U CN207064739U CN 207064739 U CN207064739 U CN 207064739U CN 201720817816 U CN201720817816 U CN 201720817816U CN 207064739 U CN207064739 U CN 207064739U
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- China
- Prior art keywords
- valve
- valve rod
- baffle
- flap
- spring
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- 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 DRV, including valve body, valve seat, flap, baffle, valve rod and spring, valve seat and valve body machine-shaping, the sealing surface of seat is plane；The lead of baffle is provided with through hole along axis, and valve rod has a round estrade shape part and cylindrical shape part, and the cylindrical shape part of valve rod is slidably mounted on using axle sleeve in the through hole that the baffle lead set along axis；The larger one end of the spring diameter is set on the excircle of described larger one end of valve rod round estrade shape section diameter, and the less one end of the spring diameter is fixedly connected on the end of the baffle lead.Reduce the valve seat procedure of the DRV, reduce valve seat processing cost；The mechanical strength of flap and valve rod is improved, improves the service life of the DRV；Improve the seal of the DRV.
Description
Technical field
The utility model belongs to a kind of check-valves, especially belongs to a kind of DRV.
Background technology
DRV belongs to a kind of automatic valve, and its main function is to prevent medium from flowing backwards, prevent that pump and driving are electronic
Machine is inverted and vessel media is released, and is widely used in fluid control engineering.But traditional DRV is opening and closing at present
When all exist one it is shared the shortcomings that, that is, during being turned on and off, flap is in accelerator all the time, makes valve motion part
Excessive velocities before stopping, here it is the immediate cause for causing check-valves water hammer and flap to hit.So that valve rod and flap
Abrasion is very fast, and long-term vibrations also make valve rod be easily broken off in itself, reduce the service life of DRV；Meanwhile at present
The DRV majority flap of in the market all vulcanizes rubber, damascene copper or stainless steel valve seat after processing groove on valve body,
Elastomeric material is wasted, adds procedure, improves processing cost, and sealing effectiveness is sometimes also bad.How to improve
The mechanical strength of flap and valve rod, the service life of DRV is improved, how to improve DRV sealing effectiveness, reduced
Elastomeric material consumes and processing cost is to need to solve the problems, such as.
Utility model content
Technical problem to be solved in the utility model is：A kind of DRV is provided.Using the DRV not
It is only capable of improving the mechanical strength of flap and valve rod, improves the service life of DRV；It is close that the DRV can also be improved
Seal effect, moreover it is possible to reduce elastomeric material consumption and processing cost.
The utility model solve above-mentioned technical problem technical scheme be：A kind of DRV, including valve body, the valve body
The axially disposed medium entrance and media outlet for having insertion medium, in addition to valve seat, flap, baffle, valve rod and spring, institute
Stating baffle has lead, and one end of the baffle is fixedly mounted on the media outlet of valve body by interference fit, and it is special
Sign is：The valve seat and valve body machine-shaping, the sealing surface of seat is plane；The lead of the baffle is set along axis
Through hole is equipped with, the valve rod has round estrade shape part and cylindrical shape part, and the valve rod round estrade shape section diameter is larger
One end and the one side of the flap indent are integrally formed, the valve rod less one end of round estrade shape section diameter and valve rod cylinder
Shape part is integrally formed, and the cylindrical shape part of the valve rod is slidably mounted on the baffle lead using axle sleeve and set along axis
In the through hole put；The spring is trapezoidal along the cross section of axis, and the larger one end of the spring diameter is set in the valve rod circle
On the excircle of the larger one end of stage body shape section diameter, the less one end of the spring diameter is fixedly connected on the baffle and is oriented to
The end of post；Under the promotion of the larger one end of the spring diameter, the another side of the flap evagination can be with the sealing surface of the valve seat
Sealing；
Vulcanize rubber sealing surface on the sealing surface of seat, the flap with the sealing surface excircle of the valve base sealing
Vulcanize rubber seal, the cross section of the rubber seal is O-shaped；The rubber sealing surface that the valve seat vulcanizes and the flap
On the O-shaped rubber seal that vulcanizes be in linear sealing.
The beneficial effects of the utility model are：Due to valve seat of the present utility model and valve body machine-shaping, the valve seat
Sealing surface is plane；Reduce the utility model valve seat procedure, reduce valve seat processing cost.Valve rod has round estrade shape
Part and cylindrical shape part, the larger one end of valve rod round estrade shape section diameter and the one side of flap indent are integrally formed, valve
The less one end of bar round estrade shape section diameter and the cylindrical shape part of valve rod are integrally formed；Due to being connected in flap with valve rod
Portion increases the diameter of valve rod, and flap is molded with valve-stem integrated, is improved the mechanical strength of flap and valve rod, is improved this reality
With the service life of Novel sound-silencing check-valves.Spring is trapezoidal along the cross section of axis, and the larger one end of the spring diameter is arranged
In on the excircle of the larger one end of valve rod round estrade shape section diameter, the less one end of the spring diameter is fixedly connected on baffle
It is oriented to the end of post part；Under the promotion of the larger one end of the spring diameter, the another side of flap evagination can be close with the valve seat
Front cover seals；Because the larger one end of the spring diameter is set in the cylindrical of described larger one end of valve rod round estrade shape section diameter
Zhou Shang, make spring for the thrust of flap in the nearly excircle of flap, the sealing surface stress for making flap mutually be sealed with valve seat
It is big and uniform, improve the seal of the utility model DRV.
Again due to vulcanizing rubber sealing surface, the sealing of flap and the valve base sealing on sealing surface of seat of the present utility model
Vulcanize rubber seal on the excircle of face, the cross section of the rubber seal is O-shaped；Rubber sealing surface that valve seat vulcanizes with
The O-shaped rubber seal vulcanized on the flap is in linear sealing.Improve the seal of the utility model DRV；
Elastomeric material consumption and processing cost are also reduced simultaneously.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples；
Fig. 1 is structural representation of the present utility model；
In accompanying drawing：1. valve body, 2. valve seats, 3. flaps, 4. baffles, 5. valve rods, 6. springs, 41. leads, 42. through holes,
7. axle sleeve.
Embodiment
The utility model is described in further detail below by specific embodiment.
Embodiment 1
As shown in figure 1, a kind of DRV, including valve body 1, the axially disposed medium for having insertion medium of the valve body 1
Import and media outlet, in addition to valve seat 2, flap 3, baffle 4, valve rod 5 and spring 6, the baffle 4 have lead
41, one end of the baffle 4 is fixedly mounted on the media outlet of valve body 1 by interference fit, it is characterized in that：The valve seat 2
Shaping is integrally machined with valve body 1, the sealing surface of valve seat 2 is plane；The lead 41 of the baffle 4 is provided with through hole along axis
42, the valve rod 5 has round estrade shape part and cylindrical shape part, the larger one end of the round estrade shape section diameter of valve rod 5
It is integrally formed with the one side of the indent of flap 3, the less one end of round estrade shape section diameter of valve rod 5 and the cylinder of valve rod 5
Shape part is integrally formed, and the cylindrical shape part of the valve rod 5 is slidably mounted on the lead of baffle 4 along axle using axle sleeve 7
In the through hole 42 that line is set；The spring 6 is trapezoidal along the cross section of axis, and one end that the spring 6 is relatively large in diameter is set in institute
On the excircle for stating the larger one end of round estrade shape section diameter of valve rod 5, the less one end of the diameter of spring 6 is fixedly connected on described
The end of the lead of baffle 4；In the case where the spring 6 is relatively large in diameter the promotion of one end, the another side of the evagination of flap 3 can be with this
The sealing surface sealing of valve seat 2；
Vulcanize rubber sealing surface on the sealing surface of valve seat 2, the flap 3 and the sealing surface that the valve seat 2 seals are cylindrical
Vulcanize rubber seal on week, the cross section of the rubber seal is O-shaped；Rubber sealing surface that the valve seat 2 vulcanizes with
The O-shaped rubber seal vulcanized on the flap 3 is in linear sealing.
By above-mentioned description, those skilled in the art completely can be in the model without departing from this invention technological thought
In enclosing, various changes and amendments are carried out all within the scope of protection of the utility model.Unaccomplished matter of the present utility model,
Belong to the common knowledge of those skilled in the art.
Claims (2)
1. a kind of DRV, including valve body, the axially disposed medium entrance and media outlet for having insertion medium of the valve body,
Also include valve seat, flap, baffle, valve rod and spring, the baffle has lead, and one end of the baffle passes through interference
Cooperation is fixedly mounted on the media outlet of valve body, it is characterized in that：The valve seat and valve body machine-shaping, the valve base sealing
Face is plane；The lead of the baffle is provided with through hole along axis, and the valve rod has round estrade shape part and cylinder
Shape part, the larger one end of the valve rod round estrade shape section diameter and the one side of the flap indent are integrally formed, valve rod circle
The less one end of stage body shape section diameter is integrally formed with valve rod cylindrical shape part, and the cylindrical shape part of the valve rod uses
Axle sleeve is slidably mounted in the through hole that the baffle lead is set along axis；The spring is trapezoidal along the cross section of axis,
The larger one end of the spring diameter is set on the excircle of described larger one end of valve rod round estrade shape section diameter, and the spring is straight
The less one end in footpath is fixedly connected on the end of the baffle lead；Under the promotion of the larger one end of the spring diameter, institute
Stating the another side of flap evagination can seal with the sealing surface of the valve seat.
2. a kind of DRV according to claim 1, it is characterized in that：Vulcanize rubber seal on the sealing surface of seat
Face, the flap on the sealing surface excircle of the valve base sealing with vulcanizing rubber seal, the cross section of the rubber seal
To be O-shaped；The rubber sealing surface that the valve seat vulcanizes is in linear sealing with the O-shaped rubber seal vulcanized on the flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720817816.2U CN207064739U (en) | 2017-07-07 | 2017-07-07 | A kind of DRV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720817816.2U CN207064739U (en) | 2017-07-07 | 2017-07-07 | A kind of DRV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064739U true CN207064739U (en) | 2018-03-02 |
Family
ID=61507342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720817816.2U Active CN207064739U (en) | 2017-07-07 | 2017-07-07 | A kind of DRV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064739U (en) |
-
2017
- 2017-07-07 CN CN201720817816.2U patent/CN207064739U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |