CN207921417U - A kind of relief valve - Google Patents
A kind of relief valve Download PDFInfo
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- CN207921417U CN207921417U CN201820124847.4U CN201820124847U CN207921417U CN 207921417 U CN207921417 U CN 207921417U CN 201820124847 U CN201820124847 U CN 201820124847U CN 207921417 U CN207921417 U CN 207921417U
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- Prior art keywords
- seat
- spring
- gas
- relief valve
- valve body
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Abstract
The utility model provides a kind of relief valve, belongs to field of mechanical technique.It solves the problems, such as that the pressure relief value of existing relief valve is unadjustable.This relief valve includes valve body, valve body one end has entrance, the other end has outlet, and only gas seat, spring, adjustment seat, the spring seat of honour and spring lower seat are equipped in valve body, and adjustment seat passes through the adjustable connection of screw thread with valve body, the spring seat of honour is connected with adjustment seat, spring lower seat is connected with only gas seat, and one end of spring is resisted against on the spring seat of honour, and the other end of spring is resisted against on spring lower seat, under the effect of spring force, only gas seat is resisted against on valve body and blocks entrance.This relief valve has the advantages that keep pressure relief value adjustable.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of relief valve.
Background technology
Relief valve also known as safety valve are an important system safety block, the equipment for being typically mounted at closed system
Or on pipeline, according to the operating pressure automatically open and close of system, when the pressure in equipment or pipeline is more than relief valve
When setup pressure value, relief valve opens release, is automatically closed after pressure release so that the pressure value in pipeline is in constant range
It is interior.But since the pressure value in each system requires difference, it is therefore desirable to be adjusted to the Opening pressure value of relief valve itself
Section, typically decomposes relief valve, then by way of increasing and decreasing gasket on spring base position, by changing spring
Stroke plays the role of adjusting pressure relief value, causes relief valve adjustment cost high and time-consuming and laborious.
Relief valve in the prior art, such as Chinese patent literature data disclose a kind of safety relief valve [application number：
201710263480.4；Application publication number：CN 106949274A], including valve seat, valve body and spool, two ends of the valve seat are
End face, another end opening are provided with air inlet on the valve seat end face, and the open end of the valve seat is provided with internal thread interface:
One end of the valve body is end face, and another end opening is provided with exhaust outlet, the open end of the valve body on the end face of the valve body
It is provided with external screw joint, the open end of the valve body is threadedly coupled with the open end of the valve seat:The spool is in straight tube shape,
The lateral wall of the spool and the inner wall of the valve body are slidably matched, and blowout disk, the spool court are provided in the spool
It is provided with helical spring between two ends and the end face of the valve body of the valve body.
The safety relief valve can unload the pressure in equipment or pipeline.But the safety relief valve unloads
Pressure value is constant, and pressure relief value is unadjustable, need to be quick-fried by diaphragm when the pressure value in pipeline is more than the pressure relief value of safety relief valve
It is broken to realize pressure release, relief valve breakage is in turn resulted in, i.e., only there are one explosion value, poor universalities for the relief valve of this kind structure.
Invention content
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of relief valve solves
The technical issues of be how to make the pressure relief value of relief valve adjustable.
The purpose of this utility model can be realized by following technical proposal：A kind of relief valve, including valve body, the valve body
There is entrance, the other end to have outlet, only gas seat and spring are equipped in the valve body, which is characterized in that in the valve body for one end
It is additionally provided with adjustment seat annular in shape, the spring seat of honour and spring lower seat, the adjustment seat passes through the adjustable connection of screw thread, institute with valve body
It states the spring seat of honour with adjustment seat to be connected, the spring lower seat is connected with only gas seat, and one end of the spring is resisted against the spring seat of honour
On, the other end of the spring is resisted against on spring lower seat, and under the effect of spring force, the only gas seat is resisted against on valve body
Block the entrance.
The operation principle of this relief valve is：When adjusting, adjustment seat is rotated, the adjustment seat can compress spring,
So that the pressing force that spring is applied on only gas seat changes, to realize the adjusting to relief valve.When pressure release, in pipeline
Gas or liquid enter one end of valve body from entrance, and gas or liquid make only gas seat edge under the action of overcoming spring gravity
Valve body moves, so that gas or liquid are entered in valve body from the only gap location of gas seat and valve body and flowed out from outlet, together
When, pressure value size can be adjusted by rotating adjustment seat in pipeline so that the pressure relief value of relief valve is adjustable.
In a kind of above-mentioned relief valve, the one end at the spring seat of honour has plush copper, the other end at the spring seat of honour
With the first limited post, the middle at the spring seat of honour has the first convex edge, and centre bore is offered in the adjustment seat, described
Plush copper is embedded into centre bore and the plush copper and centre bore clearance fit, one end of the spring be sleeved on the first limited post and
One end of the spring is resisted against on the first convex edge.This kind of structure avoids spring from abutting directly against in adjustment seat, simultaneously as adjusting
It is clearance fit to save seat and plush copper, and when adjusting pressure release valve cracking pressure value, the rotation of adjustment seat will not drive the spring seat of honour to rotate,
So that spring will not rotate, and the first convex edge and the first limited post make one end of spring fixed, so that unloading
The good operating stability of pressure valve.
In a kind of above-mentioned relief valve, first convex edge is inclined-plane close to the side of adjustment seat.Inclined-plane makes spring
The seat of honour will not abut directly against on the end face of adjustment seat so that will not mutually be worn between adjustment seat and the spring seat of honour.
In a kind of above-mentioned relief valve, several recirculation holes are further opened in the adjustment seat, the centre bore is located at
The middle of the adjustment seat, the recirculation hole is around the circumferentially disposed of centre bore.When pressure release, recirculation hole can improve relief valve
Pressure release efficiency.
In a kind of above-mentioned relief valve, one end of the spring lower seat has bulb, the other end of the spring lower seat
With the second limited post, the middle of the spring lower seat has the second convex edge, has ball bowl, the bulb in the only gas seat
It is embedded into the ball bowl, the other end of the spring is sleeved on the second limited post and the other end of the spring is resisted against second
On convex edge.When pressure release, only gas seat can shake under the action of gas or liquid, due to being that point connects between bulb and ball bowl
It touches so that the shaking of only gas seat is not transferred to spring lower seat, so that spring will not shake, and the second convex edge and the
Two limited posts make the other end of spring fixed, so that the good operating stability of pressure-relief valve.
In a kind of above-mentioned relief valve, there is mounting hole, the spring lower seat to be located at installation for the inner end of the only gas seat
Kong Zhong, the spring lower seat and mounting hole clearance fit.This kind of structure so that only on the one hand gas seat can play spring lower seat
On the other hand the effect of protection so that generated shaking is not transferred on spring lower seat when only gas seat pressure release, so that
The good operating stability of pressure-relief valve.
In a kind of above-mentioned relief valve, the outer end of the only gas seat is equipped with only gas piece, in the valve body there is protrusion to set
The annular gear edge set, under the effect of spring force, the only gas piece are resisted against annular gear along above making the only gas piece block institute
State entrance.Annular gear with only gas piece along that can come into full contact with, and only gas piece makes the good airproof performance of relief valve.
In a kind of above-mentioned relief valve, channel is formed between the only gas piece, annular gear edge and the madial wall of valve body.It should
Kind structure makes relief valve not have to individually open up channel, to reduce the manufacturing cost of relief valve.
In a kind of above-mentioned relief valve, the valve body includes valve seat and bonnet, the only gas piece, spring lower seat, only gas
Seat, spring, the spring seat of honour and adjustment seat are respectively positioned in valve seat, are connected through a screw thread between the valve seat and bonnet, the valve seat
Gasket is equipped between bonnet.When relief valve is installed, it is packed into valve seat stops gas piece, spring lower seat, only gas seat, bullet successively
Bonnet, is finally tightened on valve seat by spring, the spring seat of honour and adjustment seat, this kind of structure makes relief valve assembly simple.
Compared with prior art, a kind of relief valve provided by the utility model has the following advantages：
When 1, adjusting, adjustment seat is rotated so that the pressing force that spring is applied on only gas seat changes, to pressure release
The pressure relief value of valve is adjusted.
2, the spring seat of honour avoids spring from directly being contacted with adjustment seat, and when adjustment seat rotates, the spring seat of honour will not be the same as adjusting
Seat rotation, spring lower seat avoid spring from directly being touched with only gas seated connection, and when only gas seat shakes, spring lower seat will not shake with only gas seat
It is dynamic, to ensure spring position to neutrality.
Description of the drawings
Fig. 1 is a kind of this integrally-built sectional view of relief valve.
Fig. 2 is a kind of this partial enlarged view of relief valve Fig. 1.
Fig. 3 is a kind of this front view of relief valve adjustment seat.
Fig. 4 is the front view that a kind of this relief valve stops gas seat.
In figure, 1, valve body；11, entrance；12, it exports；13, annular gear edge；14, valve seat；15, bonnet；2, stop gas seat；21、
Ball bowl；22, mounting hole；3, spring；4, adjustment seat；41, centre bore；42, recirculation hole；5, the spring seat of honour；51, plush copper；52, first
Limited post；53, the first convex edge；54, inclined-plane；6, spring lower seat；61, bulb；62, the second limited post；63, the second convex edge；7, only
Gas piece；8, channel；9, gasket.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this relief valve includes valve body 1, only gas seat 2, spring 3, adjustment seat 4, the spring seat of honour 5 and spring lower seat
6。
There is plush copper 51, the other end at the spring seat of honour 5 to have the first limited post 52, the spring seat of honour 5 for the one end at the spring seat of honour 5
Middle there is the first convex edge 53, as shown in figure 3, in the present embodiment, centre bore 41 and four circulations are offered in adjustment seat 4
Hole 42, in actual production, the quantity of recirculation hole 42 can be three or five, and centre bore 41 is located at the centre of adjustment seat 4
Place, recirculation hole 42 is circumferentially disposed around centre bore 41, and plush copper 51 is embedded into centre bore 41 and plush copper 51 and 41 gap of centre bore
Cooperation, adjustment seat 4 and valve body 1 are by the adjustable connection of screw thread, and one end of spring 3 is sleeved on the first limited post 52 and spring 3
One end is resisted against on the first convex edge 53, and the first convex edge 53 is inclined-plane 54 close to the side of adjustment seat 4.
There is bulb 61, the other end of spring lower seat 6 to have the second limited post 62, spring lower seat 6 for one end of spring lower seat 6
Middle have the second convex edge 63, as shown in figure 4, only the inner end of gas seat 2 have mounting hole 22, spring lower seat 6 be located at installation
In hole 22, spring lower seat 6 and 22 clearance fit of mounting hole, as shown in Fig. 2, the bottom hole of mounting hole 22 has ball bowl 21, bulb 61
It is embedded into ball bowl 21, the other end of spring 3 is sleeved on the second limited post 62 and the other end of spring 3 is resisted against the second convex edge 63
On, only the outer end of gas seat 2 is equipped with only gas piece 7, has the annular gear of protrusion setting along 13 in valve body 1,1 one end of valve body has entrance
11, the other end has outlet 12, and under the action of 3 elastic force of spring, only gas piece 7 is resisted against annular and keeps off makes only gas piece 7 along 13
Entrance 11 is blocked, only gas piece 7, annular gear form channel 8 between 13 and the madial wall of valve body 1.
Valve body 1 includes valve seat 14 and bonnet 15, only gas piece 7, spring lower seat 6, only gas seat 2, spring 3, the spring seat of honour 5 and tune
Section seat 4 is respectively positioned in valve seat 14, is connected through a screw thread between valve seat 14 and bonnet 15, and sealing is equipped between valve seat 14 and bonnet 15
Pad 9.
When pressure regulator valve integrally assembles, spring lower seat 6 is embedded into mounting hole 22 so that bulb 61 is resisted against ball bowl respectively
In 21, plush copper 51 is embedded into centre bore 41, the tune for then successively completing only gas seat 2, spring 3 and assembly that assembly is completed
Section seat 4 is installed in valve body 1 so that one end of spring 3 is sleeved on the first limited post 52 and to be resisted against first convex for one end of spring 3
Along 53, the other end of spring 3 is sleeved on the second limited post 62 and the other end of spring 3 is resisted against on the second convex edge 63, in bullet
Under the action of 3 elastic force of spring, only gas piece 7 is resisted against annular gear along 13 so that only gas piece 7 blocks entrance 11, to complete pressure regulator valve
Assembly.This kind of structure makes the spring seat of honour 5 that spring 3 be avoided directly to be contacted with adjustment seat 4, when adjustment seat 4 rotates, on spring
Seat 5 will not be rotated with adjustment seat 4, and spring lower seat 6 avoids spring 3 from directly being contacted with only gas seat 2, when only gas seat 2 shakes, spring
Lower seat 6 will not shake with only gas seat 2, ensure spring 3 position to neutrality so that relief valve release stability is good, adjust
When pressure relief value, only adjustment seat 4 need to be rotated, you can so that the pressing force that spring 3 is applied on only gas seat 2 changes, to right
The pressure relief value of relief valve is adjusted.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although valve body 1, entrance 11, outlet 12, annular gear is used more herein along 13, valve seat 14, bonnet 15, only gas
Seat 2, ball bowl 21, mounting hole 22, spring 3, adjustment seat 4, centre bore 41, recirculation hole 42, the spring seat of honour 5, plush copper 51, first limit
Column 52, the first convex edge 53, inclined-plane 54, spring lower seat 6, bulb 61, the second limited post 62, the second convex edge 63, only gas piece 7, channel
8, the terms such as gasket 9, but it does not preclude the possibility of using other terms.The use of these items is only for more easily
Describe and explain the essence of the utility model；It is construed as any one of the additional limitations all and is and the spirit of the present invention
It disagrees.
Claims (9)
1. a kind of relief valve, including valve body (1), there is entrance (11), the other end to have outlet (12) for described valve body (1) one end,
Only gas seat (2) and spring (3) are equipped in the valve body (1), which is characterized in that be additionally provided with tune annular in shape in the valve body (1)
Seat (4), the spring seat of honour (5) and spring lower seat (6) are saved, the adjustment seat (4) passes through the adjustable connection of screw thread, institute with valve body (1)
It states the spring seat of honour (5) with adjustment seat (4) to be connected, the spring lower seat (6) is connected with only gas seat (2), one end of the spring (3)
It is resisted against on the spring seat of honour (5), the other end of the spring (3) is resisted against on spring lower seat (6), in the work of spring (3) elastic force
Under, the only gas seat (2), which is resisted against on valve body (1), blocks the entrance (11).
2. a kind of relief valve according to claim 1, which is characterized in that one end of the spring seat of honour (5) has plush copper
(51), the other end of the spring seat of honour (5) has the first limited post (52), and the middle of the spring seat of honour (5) has the
One convex edge (53) offers centre bore (41) on the adjustment seat (4), and the plush copper (51) is embedded into centre bore (41) and institute
Plush copper (51) and centre bore (41) clearance fit are stated, one end of the spring (3) is sleeved on the first limited post (52) and the bullet
One end of spring (3) is resisted against on the first convex edge (53).
3. a kind of relief valve according to claim 2, which is characterized in that first convex edge (53) is close to adjustment seat (4)
Side be inclined-plane (54).
4. a kind of relief valve according to claim 2 or 3, which is characterized in that be further opened on the adjustment seat (4) several
A recirculation hole (42), the centre bore (41) are located at the middle of the adjustment seat (4), and the recirculation hole (42) is around centre bore
(41) circumferentially disposed.
5. a kind of relief valve according to claim 1 or 2 or 3, which is characterized in that one end of the spring lower seat (6) has
There are bulb (61), the other end of the spring lower seat (6) that there is the second limited post (62), the middle of the spring lower seat (6)
With the second convex edge (63), in the only gas seat (2) there is ball bowl (21), the bulb (61) to be embedded into the ball bowl (21)
In, the other end of the spring (3) is sleeved on the second limited post (62) and the other end of the spring (3) is resisted against the second convex edge
(63) on.
6. a kind of relief valve according to claim 1 or 2 or 3, which is characterized in that the inner end of the only gas seat (2) has
Mounting hole (22), the spring lower seat (6) are located in mounting hole (22), and the spring lower seat (6) is matched with mounting hole (22) gap
It closes.
7. a kind of relief valve according to claim 1 or 2 or 3, which is characterized in that the outer end of the only gas seat (2) is equipped with
Only gas piece (7) have in the valve body (1) the annular gear of protrusion setting along (13), described under the action of spring (3) elastic force
Only gas piece (7) is resisted against annular gear makes the only gas piece (7) block the entrance (11) on (13).
8. a kind of relief valve according to claim 7, which is characterized in that the only gas piece (7), annular gear are along (13) and valve
Channel (8) are formed between the madial wall of body (1).
9. a kind of relief valve according to claim 7, which is characterized in that the valve body (1) includes valve seat (14) and bonnet
(15), the only gas piece (7), spring lower seat (6), only gas seat (2), spring (3), the spring seat of honour (5) and adjustment seat (4) are respectively positioned on
It in valve seat (14), is connected through a screw thread between the valve seat (14) and bonnet (15), between the valve seat (14) and bonnet (15)
Equipped with gasket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820124847.4U CN207921417U (en) | 2018-01-25 | 2018-01-25 | A kind of relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820124847.4U CN207921417U (en) | 2018-01-25 | 2018-01-25 | A kind of relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207921417U true CN207921417U (en) | 2018-09-28 |
Family
ID=63605501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820124847.4U Active CN207921417U (en) | 2018-01-25 | 2018-01-25 | A kind of relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207921417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260003A (en) * | 2019-05-21 | 2019-09-20 | 山东鑫亚格林鲍尔燃油系统有限公司 | A kind of internal combustion engine relief valve and its application method |
-
2018
- 2018-01-25 CN CN201820124847.4U patent/CN207921417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260003A (en) * | 2019-05-21 | 2019-09-20 | 山东鑫亚格林鲍尔燃油系统有限公司 | A kind of internal combustion engine relief valve and its application method |
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