CN207814580U - One kind is from exhaust reducing valve - Google Patents
One kind is from exhaust reducing valve Download PDFInfo
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- CN207814580U CN207814580U CN201820053078.3U CN201820053078U CN207814580U CN 207814580 U CN207814580 U CN 207814580U CN 201820053078 U CN201820053078 U CN 201820053078U CN 207814580 U CN207814580 U CN 207814580U
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- spool
- piston component
- reducing valve
- outlet port
- spring
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Abstract
The utility model discloses one kind from exhaust reducing valve, belong to pressure reducing valve technical field, it includes valve body, spool, shell and piston component, wherein by the way that the through-hole coaxial with valve core axis is arranged on piston component, the connection or isolation of ambient atmosphere and pressure reducing valve outlet port are realized by the connection or closing of the through-hole, and the stress size that piston component deviates from spool side is changed by adjusting screw rod and spring, change the stress balance of piston component with this, to control piston component and the abutting of spool or detach, the adjusting of outlet port gas pressure is realized.In the utility model from exhaust reducing valve, simple in structure, setting is easy, can effectively reduce the application of shut-off valve, reduce the use cost of pressure reducing valve.
Description
Technical field
The utility model belongs to pressure reducing valve technical field, and in particular to a kind of from exhaust reducing valve.
Background technology
Pressure reducing valve, which is one kind, reducing to inlet pressure the outlet pressure of a certain needs, and rely on medium sheet by adjusting
The energy of body makes outlet pressure automatically keep stable valve, there is very extensive application in gas delivery art.
In application process, the gas pressure intensity of pressure reducing valve outlet end usually can not be controlled freely common pressure reducing valve, and one
As in the case of, when air inlet be high pressure when, can by adjust counterclockwise adjusting screw rod come so that outlet pressure from zero up by
Step section, and when adjustment adjusting screw rod clockwise, outlet pressure is unchanged.Therefore, during traditional relief valve use, when
When outlet end has exhaust to need, generally requires that shut-off valve is installed in outlet end, be exhausted by shut-off valve, this not only to subtract
The use cost of pressure valve increases, also so that the exhaust process of pressure reducing valve is cumbersome.
Utility model content
For the disadvantages described above or Improvement requirement of the prior art, the utility model provide it is a kind of from exhaust reducing valve,
In by the way that the through-hole coaxial with valve core axis is arranged on piston component, realized ambient atmosphere by logical close of the through-hole and depressurized
The connection at valve air gate end, and the stress size that piston component deviates from spool side is changed by adjusting screw rod and spring, with
This changes the stress balance of piston component, to control piston component and the abutting of spool or detach, it can be achieved that outlet port
The adjusting of gas pressure, it is easy to operate, without installing shut-off valve additional, reduce the use cost of pressure reducing valve.
To achieve the above object, the utility model provides a kind of from exhaust reducing valve, is used for pressure reducing valve outlet port air pressure
Freely adjust, including be equipped with the valve body of spool, matched with the valve body setting shell and be arranged in the shell and institute
The piston component between spool is stated, the spring being mutually matched and adjusting screw rod are provided in the shell to realize the piston group
The adjusting of part stress size and the driving of the piston component, which is characterized in that
The piston component is abutted away from the side of the spool with the spring, and can be by changing the pre- of the spring
Clamp force adjusts the stress size of the piston component, the piston component offered close to the side of the spool can be used for it is described
The groove that spool one end is embedded, and in the groove connection piston component both ends are offered along the axis of the spool
Through-hole, the through-hole can be connected to outlet port in the pressure reducing valve inlet port and the outlet port have certain air pressure when by
One end of the spool is closed, and then the through-hole can be realized when stress of the piston component away from the spool side reduces
With the connection of the outlet port so that the gas of the outlet port can be flowed out by the through-hole, realize the gas outlet
Hold the adjusting of air pressure.
The pretightning force of the spring can pass through the precession amount of the adjusting screw rod as a further improvement of the utility model,
Change, and can the piston component and the abutting of the spool be realized by the variation of the pretightning force or detached, that is, realizes institute
State the closure of the through-hole or connection on piston component.
The pressure reducing valve can be pushed when the adjusting screw rod rotates clockwise as a further improvement of the utility model,
The piston component and the spool are moved to realize being connected to for the inlet port and the outlet port, and the adjusting spiral shell
Bar can reduce the pretightning force of the spring and realize separation and the institute of the piston component and the spool when rotating counterclockwise
State the connection of outlet port and the through-hole.
The pressure reducing valve can be pushed when the adjusting screw rod rotates counterclockwise as a further improvement of the utility model,
The piston component and the spool are moved to realize being connected to for the inlet port and the outlet port, and the adjusting spiral shell
Bar can reduce the pretightning force of the spring and realize separation and the institute of the piston component and the spool when rotating clockwise
State the connection of outlet port and the through-hole.
As a further improvement of the utility model, piston seal is provided between the piston component and the spool
Block is arranged in the groove to realize that the piston component is abutted with the close of the spool.
As a further improvement of the utility model, gas vent is provided on the side of the shell.
The both ends of the spring are respectively arranged with spring base, one of institute as a further improvement of the utility model,
It states spring base and matches connection with the adjusting screw rod, another described spring base is abutted with a side end face of the piston component.
In general, have the above technical solutions conceived by the present invention are compared with the prior art, with following
Beneficial effect：
(1) the utility model from exhaust reducing valve, by the way that the through-hole coaxial with valve core axis is arranged on piston component,
The connection of ambient atmosphere and pressure reducing valve outlet port is realized by logical close of the through-hole, work changed by adjusting screw rod and spring
Plug assembly deviate from spool side stress size, change the stress balance of piston component with this, to control piston component with
The adjusting of outlet port gas pressure is realized in the abutting of spool or separation, is adjusted simply, easily operated, without installing shut-off valve additional,
Reduce the use cost of pressure reducing valve；
(2) the utility model from exhaust reducing valve, simple in structure, setting is convenient, need to only be opened up on piston component with
The through-hole of spool coaxial line can realize the air pressure adjustment of outlet port by rotating adjusting screw rod, realize arranging certainly for pressure reducing valve
Gas, and the adjusting of outlet port air pressure size can be controlled by changing the rotation amount of adjusting screw rod, there is very significant effect
Fruit.
Description of the drawings
Fig. 1 is the overall structure diagram from exhaust reducing valve in the utility model embodiment；
In all the appended drawings, same reference numeral indicates identical technical characteristic, specially：1. valve body, 2. spools, 3.
Valve base sealing block, 4. piston components, 401. pistons, 402. piston seal blocks；5. valve deck, 6. spring bases, 7. springs, 8. shells,
9. adjusting screw rod, 10. gas vents, 11. bars.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.
It is as shown in fig. 1 from exhaust reducing valve in preferred embodiment, including valve body 1 and shell 8, the bottom of shell 8
Portion is provided with valve deck 5, and piston component 4 is provided in valve deck 5, and being provided in valve body 1 can be with piston component in shell 8
4 spools 2 to match.
Further, it is preferable to the spool 2 in embodiment is as shown in fig. 1, the vertical blind hole being mounted in valve body 1, and
Can in the blind hole vertical lifting, preferably its vertical position is controlled with spring；Further, spool 2 is in embodiment
It is constructed for variable diameters, is preferably provided with valve base sealing block 3 at an upper portion thereof, spool 2 can be realized close with valve seat by vertical lifting
It seals the contact of block 3 and detaches, to realize the partition of pressure reducing valve air inlet and gas outlet and be connected to, i.e., when spool 2 and valve seat are close
When sealing the contact of block 3, inlet port is separated with outlet port, and outlet port is in low-pressure state；And when spool 2 vertically decline and with
When valve base sealing block 3 detaches, inlet port is connected to outlet port, and the air pressure of outlet port increases.
Further, the top of corresponding spool 28 bottom of shell be provided with can vertical lifting piston component 4, preferably in fact
The piston component 4 applied in example is arranged on valve deck 5, as shown in fig. 1.And specifically, it is preferable to which the piston component 4 in embodiment includes
Piston 401 corresponds to the top of spool 2 and is opened up on bottom surface fluted, and the top of spool 2 can be correspondingly embedded in the groove real
Now with the matching of piston 401；Further, piston 401 is arranged on the bottom end face of shell 8, and can be erected along its axis
To lifting；Further, offering through-hole in the axis of 401 upper edge spool 2 of piston, i.e., the through-hole is coaxially opened up with groove, when
When spool 2 is abutted with the matching of piston 401, one end of the through-hole is sealed and other end connection ambient atmosphere, when spool 2 and piston
When 401 separation, one end of the through-hole is connected to outlet port, and the other end is connected to ambient atmosphere；Further, when spool 2 and valve
The seat matching of sealing block 3 contact and when the top of spool 2 is abutted with the bottom mating of piston component 4, piston component 4 and valve deck 5 it
Between be also reserved with certain space so that piston component 4 can also further up certain altitude, realize with the separation of spool 2, and this
When spool 2 can not be further up due to the limit of valve base sealing block 3.
It is further preferred that it is provided with piston seal block 402 in the groove of piston 401 in a preferred embodiment, it is excellent
It is selected as elastic material, it can be with the top tight fit of spool 2 so that can be sufficiently sealed when piston 401 is matched with spool 2；Into one
Step ground, piston component 4 can be acted on lower progress vertical lifting by the spring 7 above it, and the both ends of spring 7 are respectively arranged with spring base
6, two spring bases 6 are coaxially disposed with piston component 4, and one of spring base 6 is with bottom face and piston component 4 away from spool 2
The matching of one end end face abuts, and 401 vertical lifting of piston can be pushed under the action of spring 7, then realizes the vertical liter of spool 2
Drop completes the connection of inlet port and outlet port；Further, it is coaxially arranged with tune on the spring base 6 of piston component 4
Screw rod 9 is saved, the position of a spring base 6 is adjusted by rotating adjusting screw rod 9, and realize the compression of spring 6 or loosen, to
Change amount of force of the spring 7 to spring base 6, then 4 vertical lifting of piston component is pushed by spring base 6.
It is further preferred that offer gas vent 10 on the side wall of shell 8, gas vent 10 can will be on piston 401 it is logical
Hole is connected to ambient atmosphere, and after being detached with spool 2 for piston 401, outlet port is connected to by gas vent 10 with ambient atmosphere, from
And the portion gas of outlet port is discharged to from exhaust outlet 10 in air so that the reduction of outlet port air pressure；It is further excellent
Selection of land, the preferred corresponding spring base 6 away from piston component 4 of gas vent 10 in preferred embodiment, and it is corresponding on the side of spring base 6
Bar 11 is arranged in edge, and 11 one end of bar is connected on the edge of spring base 6, and the other end is paid in gas vent 10, with for bullet
The vertical position of spring abutment 6 proposes instruction, to the vertical position of adjusting screw rod 9 at characterization indirectly.
It is further preferred that when the hand of spiral of adjusting screw rod 9 is preferably arranged to rotate clockwise under band flexible spring seat 6
Drop so that spring 7 compresses, to push piston component 4 vertically to decline, when adjusting screw rod 9 rotates counterclockwise, adjusting screw rod 9
Band flexible spring seat 6 rises, the pressure reduction to spring 7；Certainly, the hand of spiral of adjusting screw rod 9 can also be with above-mentioned preferred reality
The direction initialization in example is applied on the contrary, band flexible spring seat 6 rises when rotating clockwise, counterclockwise when rotation under band flexible spring seat 6
Drop.
In the preferred embodiment in the utility model from exhaust reducing valve in application, when initial inlet port and outlet port every
Absolutely, the air pressure of outlet port is relatively low, rotates clockwise adjusting screw rod 9 so that spring base 6 declines, then spring base 6 pushes piston
Under component 4 is so that spool 2 is in close contact with the piston seal block 402 in piston component 2, and piston component 4 pushes spool 2 vertical
Drop, the releasing of spool 2 and the contact of valve base sealing block 3, and then inlet port is connected to outlet port, the air pressure of outlet port is gradual
It increases, and gradually tends to pressure stability, piston component 4 reaches stress balance under initial tension of spring and atmospheric pressure effect；Into one
Step ground, rotates adjusting screw rod 9, initial tension of spring becomes smaller, and piston component 4 is constant by atmospheric pressure, 4 stress of piston component counterclockwise
Balance is destroyed, and piston component 4 up moves, and on reaching and be constrained from after valve base sealing block 3 and continue due to 2 position of spool
It rises, then piston seal block 402 is detached with 2 upper end of spool generates gap, and the gas of outlet end is entered by the gap in shell 8
And be exhausted by gas vent 10, realize being vented certainly for pressure reducing valve, and can be adjusted according to the amount that adjusting screw rod 9 rotates counterclockwise
Initial tension of spring change number, to adjust the size of outlet port air pressure.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (7)
1. it is a kind of from exhaust reducing valve, for freely adjusting for pressure reducing valve outlet port air pressure, including it is equipped with the valve of spool (2)
Body (1), the shell (8) that setting is matched with the valve body (1) and the work being arranged between the shell (8) and the spool (2)
Plug assembly (4) is provided with the spring (7) being mutually matched and adjusting screw rod (9) to realize the piston component in the shell (8)
(4) adjusting of stress size and the driving of the piston component (4), which is characterized in that
The piston component (4) abuts away from the side of the spool (2) with the spring (7), and can be by changing the bullet
The pretightning force of spring (7) adjusts the stress size of the piston component (4), the piston component (4) close to the spool (2) one
Side, which offers, can be used for the groove that the spool (2) one end is embedded, and the axis in the groove along the spool (2) opens up
There are the through-hole for being connected to piston component (4) both ends, the through-hole that can be connected to outlet port in the pressure reducing valve inlet port
And the outlet port have certain air pressure when by the spool (2) one end close, then the through-hole can be in the piston component
(4) connection with the outlet port is realized when the stress reduction for deviating from the spool (2) side so that the outlet port
Gas can be flowed out by the through-hole, realize the adjusting of the outlet port air pressure.
2. according to claim 1 from exhaust reducing valve, wherein the pretightning force of the spring (7) can pass through the adjusting
The precession amount of screw rod (9) changes, and can realize the piston component (4) and the spool (2) by the variation of the pretightning force
Abutting or separation, that is, realize the closure of the through-hole or connection on the piston component (4).
3. according to claim 2 from exhaust reducing valve, wherein the pressure reducing valve is clockwise in the adjusting screw rod (9)
The piston component (4) and the spool (2) can be pushed mobile to realize the inlet port and the outlet port when rotation
Connection, and the adjusting screw rod (9) counterclockwise rotate when can reduce the pretightning force of the spring (7) and realize the piston group
Part (4) and the separation of the spool (2) and the connection of the outlet port and the through-hole.
4. according to claim 2 from exhaust reducing valve, wherein the pressure reducing valve is counterclockwise in the adjusting screw rod (9)
The piston component (4) and the spool (2) can be pushed mobile to realize the inlet port and the outlet port when rotation
Connection, and when adjusting screw rod (9) rotates clockwise can reduce the pretightning force of the spring (7) and realize the piston group
Part (4) and the separation of the spool (2) and the connection of the outlet port and the through-hole.
5. according to any one of claims 1 to 4 from exhaust reducing valve, wherein the piston component (4) and the valve
Be provided with piston seal block (402) between core (2), be arranged in the groove with realize the piston component (4) with it is described
The close abutting of spool (2).
6. according to any one of claims 1 to 4 from exhaust reducing valve, wherein be arranged on the side of the shell (8)
There is gas vent (10).
7. according to any one of claims 1 to 4 from exhaust reducing valve, wherein the both ends of the spring (7) are set respectively
It is equipped with spring base (6), one of them described spring base (6) matches connection with the adjusting screw rod (9), another described spring base
(6) it is abutted with a side end face of the piston component (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820053078.3U CN207814580U (en) | 2018-01-12 | 2018-01-12 | One kind is from exhaust reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820053078.3U CN207814580U (en) | 2018-01-12 | 2018-01-12 | One kind is from exhaust reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814580U true CN207814580U (en) | 2018-09-04 |
Family
ID=63327116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820053078.3U Active CN207814580U (en) | 2018-01-12 | 2018-01-12 | One kind is from exhaust reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667968A (en) * | 2018-12-29 | 2019-04-23 | 捷锐企业(上海)有限公司 | The pressure reducing valve of balanced type valve core structure |
| CN113280165A (en) * | 2021-05-31 | 2021-08-20 | 中国船舶重工集团公司第七一九研究所 | Pressure-reducing air supply valve for toilet |
-
2018
- 2018-01-12 CN CN201820053078.3U patent/CN207814580U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667968A (en) * | 2018-12-29 | 2019-04-23 | 捷锐企业(上海)有限公司 | The pressure reducing valve of balanced type valve core structure |
| CN113280165A (en) * | 2021-05-31 | 2021-08-20 | 中国船舶重工集团公司第七一九研究所 | Pressure-reducing air supply valve for toilet |
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