CN205824303U - A kind of embedded relief valve - Google Patents
A kind of embedded relief valve Download PDFInfo
- Publication number
- CN205824303U CN205824303U CN201620726570.3U CN201620726570U CN205824303U CN 205824303 U CN205824303 U CN 205824303U CN 201620726570 U CN201620726570 U CN 201620726570U CN 205824303 U CN205824303 U CN 205824303U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- embedded
- valve rod
- relief valve
- 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.)
- Expired - Fee Related
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Abstract
This utility model provides a kind of embedded relief valve, belongs to technical field of valve manufacturing.It solve the problems such as existing relief valve volume is big.This embedded relief valve includes tubular valve body, valve body bottom has the flange of outwards turnover, the valve body sidepiece circumference near bottom uniformly offers several water holes, the valve body inwall near top is provided with coaxially arranged valve rod in being embedded with snap ring and valve body, it is provided with elastic component between valve rod and valve body and elastic component provides elastic force to make the top of valve rod have the trend being plugged in snap ring all the time, between bottom and the valve body bottom of valve rod, leave the aquaporin excessively being communicated in water hole when the top of valve rod is plugged in snap ring.The advantages such as this utility model has compact, and decompression is stable.
Description
Technical field
This utility model belongs to technical field of valve manufacturing, relates to a kind of relief valve, particularly to a kind of embedded safety
Valve.
Background technology
Relief valve is that opening and closing element is in normally off by under External Force Acting, when the pressure medium in equipment or pipeline rises superb
When crossing setting, prevent pressure medium in pipeline or equipment from exceeding the particular usage valve of specified value by discharge medium outside system
Door.Relief valve belongs to automatic valve class, is mainly used on boiler, pressure vessels and pipes, controls pressure and is less than setting, to people
Body safety and equipment have run important protective effect.Relief valve has to pass through pressure test and could use.
Now the required precision to the discharge pressure of valve, water flow is more and more higher, and existing relief valve is only when pressure
When power exceedes setting, just opening discharge, pressure limiting has limitation, only just can be met by the relief valve of multiple different sizes
The requirement of the specific curves characteristic that static intake pressure, static both discharge pressures are formed, so causes cost high, takes up room
Big problem.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, it is provided that a kind of compact, subtract
Press stable embedded relief valve.
The purpose of this utility model can be realized by following technical proposal: a kind of embedded relief valve, including in tubular
Valve body, it is characterised in that described valve body bottom has the flange of outwards turnover, the described valve body sidepiece week near bottom
To uniformly offering several water holes, the described valve body inwall near top is provided with coaxial cloth in being embedded with snap ring and valve body
The valve rod put, is provided with elastic component between described valve rod and valve body and elastic component provides elastic force that the top of valve rod is had all the time
It is plugged in the trend of snap ring, the company of leaving between bottom and the valve body bottom of the valve rod described in when the top of valve rod is plugged in snap ring
Lead to the aquaporin excessively in water hole.
This embedded relief valve compact overall structure is small and exquisite, overall can be loaded in the water inlet end of valve, saves cloth and be empty
Between, and when working, when the hydraulic pressure of water inlet end increases, current flow through water hole from crossing aquaporin, then outside valve body with enter
Gap between water end (W.E.) inwall flow to valve body top end, and now water flow pressure acts on valve stem tip so that valve rod overcomes elasticity
The elastic force of part and axially move down so that valve rod bottom is stretched between water hole, to reduce the water space of crossing of aquaporin, thus subtracts
Pressure makes discharge pressure stable；When water inlet end hydraulic pressure persistently increases, the bottom of valve rod moves closer to valve body bottom, continues to subtract
Pressure, until valve rod is plugged in valve body bottom, it is to avoid discharge pressure is excessive.
In the above-mentioned embedded relief valve of one, described valve stem tip offers that cave inward and is coaxially disposed
Bellmouth.Bellmouth adds the contact area of valve stem tip, i.e. valve stem tip and bears the bearing area change of water flow pressure change
Greatly, valve rod is highly sensitive.
In the above-mentioned embedded relief valve of one, described elastic component is spring, and the inwall of described valve body has bullet
Spring abutment, described valve stem tip has the flanging of outwards turnover, and the bottom of described spring acts on spring base, the top of spring
Act on the bottom of flanging.
In the above-mentioned embedded relief valve of one, described spring base is embedded with contact internal walls in the sealing ring of valve rod
One, described spring base is additionally provided with pad, the bottom of described spring is pressed on pad and makes pad by sealing ring one compression.
The setting of pad makes sealing ring one easy for installation, and sealing ring one ensure that sealing between valve rod and valve body, it is to avoid water refluxes
The turbulent flow interference caused, improves decompression precision.
In the above-mentioned embedded relief valve of one, described valve interior wall center is provided with the gear for stopping flanging
Shoulder.Shoulder block plays stop flanging effect, it is determined that to the maximum displacement moved down, (maximum displacement ensures valve rod bottom to stem shaft
It is plugged in valve body bottom), and avoid spring deformation by flanging excess compression, it is ensured that the life-span of spring and working stability
Property.
In the above-mentioned embedded relief valve of one, described flanging is embedded with wall contacts in the sealing of valve interior wall
Circle two.Sealing ring two ensure that the sealing between valve stem tip and valve body, and spring is difficult to corrosion, and service life is long.
In the above-mentioned embedded relief valve of one, described valve body bottom is embedded with sealing ring three, when valve rod bottom
Sealing ring three described in when being plugged in valve body bottom is sealed in valve rod bottom end.
In the above-mentioned embedded relief valve of one, described flange is embedded with sealing ring four.When this embedded safety
Time in valve loading valve water inlet end, sealing ring four ensure that the sealing between valve body and water inlet end inwall.
Compared with prior art, the compact conformation of this embedded relief valve is small and exquisite, can the overall water inlet end loading valve, joint
Save arrangement space, and effect of easing stress is good, it is ensured that discharge pressure is relatively stable, the most also there is good operating stability, used
The advantage of life-span length.
Accompanying drawing explanation
Fig. 1 is this embedded relief valve structure cross-sectional schematic at valve water inlet end.
In figure, 1, valve body；1a, flange；1b, water hole；1c, spring base；1d, shoulder block；2, snap ring；3, valve rod；3a, taper
Hole；3b, flanging；4, aquaporin is crossed；5, spring；6, sealing ring one；7, pad；8, sealing ring two；9, sealing ring three；10, seal
Circle four.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
As it is shown in figure 1, this embedded relief valve includes that tubular valve body 1, valve body 1 bottom have the flange of outwards turnover
1a, the valve body 1 sidepiece circumference near bottom uniformly offers two water hole 1b, and the valve body 1 inwall near top is embedded with card
It is provided with coaxially arranged valve rod 3 in ring 2 and valve body 1, is provided with elastic component between valve rod 3 and valve body 1 and elastic component provides elastic force to make
The top obtaining valve rod 3 has the trend being plugged in snap ring 2 all the time, when the top of valve rod 3 is plugged in snap ring 2, and the bottom of valve rod 3
And between valve body 1 bottom, leave the aquaporin-4 excessively being communicated in water hole 1b, valve rod 3 top offers that cave inward and coaxial
The bellmouth 3a arranged, valve body 1 inwall center is provided with the shoulder block 1d for stopping flanging 3b.
Describing in detail further, the present embodiment Elastic part is spring 5, and the inwall of valve body 1 has spring base 1c, valve rod 3 top
Having the flanging 3b of outwards turnover, the bottom of spring 5 acts on spring base 1c, and the top of spring 5 acts on the bottom of flanging 3b,
It is embedded with contact internal walls on spring base 1c in the sealing ring 1 of valve rod 3, spring base 1c is additionally provided with pad 7, the bottom of spring 5
It is pressed on pad 7 and sealing ring 1 is compressed by pad 7, flanging 3b is embedded with wall contacts in the sealing ring of valve body 1 inwall
28, valve body 1 bottom is embedded with sealing ring 39, flange 1a is embedded with sealing ring 4 10.
During installation, embedded for the basis assembled relief valve entirety is put into the water inlet end of valve (angle valve, ball valve), valve body
The flange 1a of 1 in interference fit with or be threadingly attached to water inlet end inwall, valve body 1 bottom is by a card being embedded into water end (W.E.) inwall
Spring is kept out.During this embedded relief valve work, when the hydraulic pressure of water inlet end increases, current flow through water hole 1b from crossing aquaporin-4,
Gap outside valve body 1 and between water inlet end inwall flow to valve body 1 top end again, and now water flow pressure acts on valve rod 3 and pushes up
End so that valve rod 3 overcomes the elastic force of spring 5 axially to move down so that valve rod 3 bottom is stretched between water hole 1b, to reduce
The water space excessively of aquaporin-4, thus decompression makes discharge pressure stable；Time actually used, when water feeding pressure is 0-0.3 MPa
Time, water outlet hydraulic pressure is equal to water feeding pressure；When water feeding pressure is 0.3 MPa, water outlet hydraulic pressure is 0.3 MPa；When water feeding pressure is
When 0.3-1.6 MPa, water outlet hydraulic pressure is 0.3-0.4 MPa；When water feeding pressure is 1.6 MPas, water outlet hydraulic pressure is 0.4 MPa.
When water inlet end hydraulic pressure persistently increases, the bottom of valve rod 3 moves closer to valve body 1 bottom, continues decompression, until valve rod 3 is plugged in
Valve body 1 bottom, sealing ring 39 is sealed in valve rod 3 bottom end, it is to avoid discharge pressure is excessive.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (8)
1. an embedded relief valve, including tubular valve body (1), it is characterised in that described valve body (1) bottom have to
The flange (1a) of outer turnover, the described valve body (1) the sidepiece circumference near bottom uniformly offers several water holes (1b), institute
The valve body (1) stated is provided with coaxially arranged valve rod (3) in the inwall on top is embedded with snap ring (2) and valve body (1), described
It is provided with elastic component and elastic component between valve rod (3) and valve body (1) to provide elastic force that the top of valve rod (3) is had all the time to be plugged in
The trend of snap ring (2), the bottom of the valve rod (3) described in when the top of valve rod (3) is plugged in snap ring (2) and valve body (1) bottom
Between leave be communicated in water hole (1b) cross aquaporin (4).
The embedded relief valve of one the most according to claim 1, it is characterised in that described valve rod (3) top offers
Bellmouth (3a) that is that cave inward and that be coaxially disposed.
The embedded relief valve of one the most according to claim 1 and 2, it is characterised in that described elastic component is spring
(5), the inwall of described valve body (1) has spring base (1c), and described valve rod (3) top has the flanging of outwards turnover
(3b), the bottom of described spring (5) acts on spring base (1c), and the top of spring (5) acts on the bottom of flanging (3b).
The embedded relief valve of one the most according to claim 3, it is characterised in that be embedded with on described spring base (1c)
Contact internal walls is additionally provided with pad (7), described spring (5) on the sealing ring one (6) of valve rod (3), described spring base (1c)
Bottom be pressed on pad (7) make pad (7) by sealing ring one (6) compress.
The embedded relief valve of one the most according to claim 1 and 2, it is characterised in that in the middle part of described valve body (1) inwall
Place is provided with the shoulder block (1d) for stopping flanging (3b).
The embedded relief valve of one the most according to claim 4, it is characterised in that outside being embedded with in described flanging (3b)
Wall is contacted with the sealing ring two (8) of valve body (1) inwall.
The embedded relief valve of one the most according to claim 6, it is characterised in that be embedded in described valve body (1) bottom
Having sealing ring three (9), the sealing ring three (9) described in when valve rod (3) bottom is plugged in valve body (1) bottom is sealed in valve rod (3)
Bottom end.
The embedded relief valve of one the most according to claim 7, it is characterised in that be embedded with close in described flange (1a)
Seal four (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726570.3U CN205824303U (en) | 2016-07-12 | 2016-07-12 | A kind of embedded relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620726570.3U CN205824303U (en) | 2016-07-12 | 2016-07-12 | A kind of embedded relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824303U true CN205824303U (en) | 2016-12-21 |
Family
ID=57565679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620726570.3U Expired - Fee Related CN205824303U (en) | 2016-07-12 | 2016-07-12 | A kind of embedded relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824303U (en) |
-
2016
- 2016-07-12 CN CN201620726570.3U patent/CN205824303U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Taizhou City, Zhejiang province Yuhuan County town 317606 village, double Patentee after: Zhejiang Wanda fluid intellectual control Limited by Share Ltd Address before: Taizhou City, Zhejiang province Yuhuan County town 317606 village, double Patentee before: YUHUAN YUNDA VALVE CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20210712 |