CN205479624U - Atmospheric pressure proportional control valve - Google Patents
Atmospheric pressure proportional control valve Download PDFInfo
- Publication number
- CN205479624U CN205479624U CN201620131149.8U CN201620131149U CN205479624U CN 205479624 U CN205479624 U CN 205479624U CN 201620131149 U CN201620131149 U CN 201620131149U CN 205479624 U CN205479624 U CN 205479624U
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- main valve
- valve core
- valve plug
- upper shell
- core
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Abstract
The utility model discloses an atmospheric pressure proportional control valve, including casing, proportion electro -magnet and case subassembly, the casing includes casing and lower casing, the internal main valve core seat that is equipped with of epitheca, it is internal that the epitheca is located to the proportion electro -magnet, the case subassembly includes last case, main valve core, last valve core reset spring and the main valve core reset spring of adjacent setting, and it is adjacent with above -mentioned main valve core to go up the valve, and on main valve core located the main valve core seat, on main valve core reset spring located the main valve core reset spring base, the iron core of proportion electro -magnet linked to each other with last case, goes up and is connected with the valve core reset spring between case and the main valve core, be connected with the corrugated metal pipe between main valve core and the main valve core seat, main valve core passes through to form static sealing between corrugated metal pipe and the last casing. The utility model discloses use the corrugated metal pipe for main sealing element, reduced proportional valve internal friction, improved the linearity, reduced the hysteresis loop, promoted response speed, adopt constant overflow structure, improved stability.
Description
Technical field
This utility model relates to a kind of valve, particularly relates to a kind of air pressure proportional control valve.
Background technology
The power output of air pressure proportional control valve passing ratio electric magnet drives valve core movement, regulates valve port opening, thus
Control the size of its output pressure.Existing air pressure proportional control valve internal friction is big, and the linearity is low, and stagnant ring is big, dynamically rings
Answering speed low, cause the gas piping system poor stability regulated by it, fault rate is high, properly functioning to gas piping system
There is bigger adverse effect.
Summary of the invention
The purpose of this utility model is to solve current air pressure proportional control valve internal friction greatly, and the linearity is low, and stagnant ring is big,
Dynamic responding speed is low, causes the gas piping system poor stability regulated by it, the technical problem that fault rate is high.
For realizing above utility model purpose, this utility model provides a kind of air pressure proportional control valve, including housing, ratio
Electric magnet and core assembly；
Described housing includes upper shell and lower house, and described upper shell top is provided with air inlet, fixed in described upper shell
There is main valve core print seat；Described lower house bottom is provided with steam vent and working hole, described steam vent and atmosphere, described working hole with
Load end is connected, and described lower house top is provided with spout hole, is provided with spill valve in described spout hole；
Described proportion electro-magnet is fixedly arranged in described upper shell, and described proportion electro-magnet is provided with electric interfaces；
Described core assembly includes upper valve core, main valve plug, upper valve core back-moving spring and the main valve plug reset bullet being disposed adjacent
Spring, described upper valve core is adjacent with described main valve plug, and described main valve plug is located on described main valve core print seat, described main valve plug back-moving spring
Being located on main valve plug back-moving spring base, the iron core of described proportion electro-magnet is connected with described upper valve core, described upper shell interior
Being embedded with lining in hole, the endoporus of described lining contacts with the outer face of described main valve plug；
Connect between described upper valve core and described main valve plug and have described upper valve core back-moving spring；Described main valve plug and described master
Connecting between valve core case and have metal bellows, described main valve plug is quiet by being formed between described metal bellows and described upper shell
State seals；One end of described main valve plug is installed with valve port assembly；Described valve port assembly and described main valve plug back-moving spring base it
Between connect have described main valve plug back-moving spring.
Further, O RunddichtringO it is provided with between described upper shell and lower house.
Further, described spill valve includes thimble, overflow spring and regulation spring.
Further, an end face of described upper valve core is provided with overflow air drain.
Further, it is provided with sealing ring between described main valve core print seat and described upper shell.
Further, described main valve plug back-moving spring base one end connects circlip for hole, the elastic gear in described hole
Circle is embedded in described upper shell.
Further, also include that leather cup, described leather cup are located in described lower house, between described leather cup and described upper shell
Form air pressure and control chamber.
Compared with prior art, the beneficial effects of the utility model are:
Air pressure proportional control valve of the present utility model uses metal bellows to be primary sealing element, reduces in proportioning valve
Portion's frictional force, improves the linearity of proportioning valve, reduces stagnant ring, improves response speed；Use constant flow structure, improve
The stability of proportioning valve.
Accompanying drawing explanation
Fig. 1 is the front view of one embodiment of this utility model；
Fig. 2 is the top view of one embodiment of this utility model；
Fig. 3 is the A-A sectional view in Fig. 2；
Fig. 4 is the partial enlarged drawing of main valve plug assembly in Fig. 1.
In figure, electric interfaces 1；Proportion electro-magnet 2；Sealing ring 3；Upper valve core 4；Main valve plug 5；Lining 6；Metal bellows 7；
Sealing ring 8；Main valve core print seat 9；Valve port assembly 10；Main valve plug back-moving spring base 11；Lower house 12；Leather cup 13；O RunddichtringO
14；Circlip for hole 15；Main valve plug back-moving spring 16；Nut 17；Upper shell 18；Upper valve core back-moving spring 19；Steam vent 20；
Spill valve 21；Working hole 22；Regulation bolt 23；Overflow spring 24；Spout hole 25；Thimble 26.
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As Figure 1-4, air pressure proportional control valve of the present utility model, including proportion electro-magnet 2, upper shell 18, lower casing
Body 12, leather cup 13 and core assembly；Upper shell 18 top is provided with air inlet, enters the entrance of valve inner as source of the gas；Upper casing
Sealed by O RunddichtringO 14 between body 18 and lower house 12；Steam vent 20, working hole 22, top are left in lower house 12 bottom
Leave spout hole 25, spill valve 21 is installed；Steam vent 20 is connected with air, and working hole 22 is connected with load end；
Spill valve 21 is made up of thimble 26, overflow spring 24 and regulation spring 23, and spill valve 21 is according to load
Pressure cuts off or connects steam vent 20 and working hole 22, is used for limiting output pressure, plays the effect of protection payload security；Electrically
Together with interface 1 is fixed by screws in proportion electro-magnet 2；
Proportion electro-magnet 2 is sealed by sealing ring 3 with upper shell 18, and is fixed by screws in together；Proportion electro-magnet 2
Iron core is connected with the right-hand member of upper valve core 4；
Lining 6 is embedded in the endoporus of upper shell 18；The endoporus of lining 6 contacts with the outer face of main valve plug 5, rises to guide and makees
With；Upper valve core back-moving spring 19 is connected with the left end of upper valve core 4 and the right-hand member of main valve plug 5 respectively；
Overflow air drain is left in the left side of upper valve core 4, for constant overflow；Metal bellows 7 respectively with the right side of main valve plug 5
End is connected with the left end of main valve core print seat 9；Main valve plug 5 is by forming static sealing between metal bellows 7 and upper shell 18；Main valve
Core print seat 9 is fixed in upper shell 18, and forms sealing by sealing ring 8 with upper shell；Valve port assembly 10 is fixed by nut 17
Left end at main valve plug 5；Main valve plug back-moving spring 16 respectively with left end and the main valve plug back-moving spring base 11 of valve port assembly 10
Right-hand member be connected；The left end of main valve plug back-moving spring base 11 is connected with circlip for hole 15；Circlip for hole 15 is embedded in
In upper shell 18；
Lower house 12, built with leather cup 13, forms rapid escape valve；The bottom being positioned at the lower house 18 on the left of leather cup 13 is stayed
Having working hole 22 and steam vent 20, spout hole 25 is left on top；Gas is formed between right side and the left side of upper shell 18 of leather cup 13
Voltage-controlled chamber processed；The right side of valve port assembly 10 forms high pressure chest with main valve core print seat 9, main valve plug 5, the inner space of metal bellows 7.
During air pressure proportional control valve of the present utility model work, proportion electro-magnet 2 is by electric interfaces 1 and controller phase
Even, and control electric current is converted to power output；
When controlling electric current and increasing, the power output of proportion electro-magnet 2 overcomes the pretightning force of main valve plug back-moving spring 16, metal
The elastic force of corrugated tube 7 and making a concerted effort of frictional resistance, promote upper valve core 4 to left movement together with main valve plug 5, valve port assembly simultaneously
10 are moved to the left with main valve plug 5, and valve port assembly 10 separates with main valve core print seat 9, and valve port is opened, and gas is flowed to gas by high pressure chest
Voltage-controlled chamber processed.Air pressure controls the pressure in chamber and raises, and promotes leather cup 13 to be moved to the left, and leather cup 13 seals the steam vent in the middle of lower house
20, control cavity pressure simultaneously and force the lip of leather cup 13 to be opened, gas, by the annular groove in lower house 12, leads to through working hole 22
External loading.
Along with the increase of the atmospheric pressure of external loading, main valve plug 5 is controlling the pressure in chamber, the pressure of high pressure chest, master again
The effect that the position elastic force of spring 16, metal bellows 7 elastic force, proportion electro-magnet 2 thrust and internal friction etc. are made a concerted effort is issued to
During balance, valve port assembly 10 and main valve core print seat 9 keep geo-stationary, control chamber and external loading pressure i.e. keeps stable.
When controlling electric current and reducing, the power output of proportion electro-magnet 2 reduces, main valve plug 5 master reset spring 16 elastic force,
Metal bellows 7 elastic force, the control pressure in chamber, the pressure of high pressure chest, proportion electro-magnet 2 power output and the work made a concerted effort of frictional force
Under with, moving right, valve port opening reduces, and controls chamber lateral pressure and reduces, and the pressure at working hole 22 remains control electric current
Force value before reduction.Under the effect of the pressure differential that the leather cup 13 pressure at left side working hole 22 and right side control cavity pressure,
Moving right, leather cup 13 separates with steam vent 20, and working hole 22 is connected with steam vent 20, and the gas in load is quickly arranged to greatly
Gas.
When the air pressure of load drops to a certain force value, the pressure of leather cup 13 left and right sides, i.e. control cavity pressure and work
Make the pressure at hole 22 again reach balance time, leather cup 13 returns to initial position, and steam vent 20 no longer connects with working hole 22, gas
Body is no longer discharged via steam vent 22.
In air pressure proportioning valve work process, the gas of constant is from controlling chamber, through interior bone, the upper valve core 4 of main valve plug 5
The overflow air drain of left side, upper shell 18 and the transverse air hole of lower house 12, arrive steam vent 20, lead to air.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and amendment completely in the range of without departing from this utility model technological thought.This reality
The content being not limited in description by novel technical scope, it is necessary to determine its technology according to right
Property scope.
Claims (7)
1. air pressure proportional control valve, it is characterised in that include housing, proportion electro-magnet and core assembly；
Described housing includes that upper shell and lower house, described upper shell top are provided with air inlet, are installed with master in described upper shell
Valve core case；Described lower house bottom is provided with steam vent and working hole, described steam vent and atmosphere, described working hole and load
End is connected, and described lower house top is provided with spout hole, is provided with spill valve in described spout hole；
Described proportion electro-magnet is fixedly arranged in described upper shell, and described proportion electro-magnet is provided with electric interfaces；
Described core assembly includes upper valve core, main valve plug, upper valve core back-moving spring and the main valve plug back-moving spring being disposed adjacent, institute
Stating upper valve core adjacent with described main valve plug, described main valve plug is located on described main valve core print seat, and described main valve plug back-moving spring is located at
On main valve plug back-moving spring base, the iron core of described proportion electro-magnet is connected with described upper valve core, in the endoporus of described upper shell
Being embedded with lining, the endoporus of described lining contacts with the outer face of described main valve plug；
Connect between described upper valve core and described main valve plug and have described upper valve core back-moving spring；Described main valve plug and described main valve plug
Connecting between Zuo and have metal bellows, described main valve plug is static close by being formed between described metal bellows and described upper shell
Envelope；One end of described main valve plug is installed with valve port assembly；Connect between described valve port assembly and described main valve plug back-moving spring base
It is connected to described main valve plug back-moving spring.
2. air pressure proportional control valve as claimed in claim 1, it is characterised in that be provided with O between described upper shell and lower house
RunddichtringO.
3. air pressure proportional control valve as claimed in claim 1, it is characterised in that described spill valve includes thimble, overflow
Spring and regulation spring.
4. air pressure proportional control valve as claimed in claim 1 a, it is characterised in that end face of described upper valve core is provided with overflow
Air drain.
5. air pressure proportional control valve as claimed in claim 1, it is characterised in that between described main valve core print seat and described upper shell
It is provided with sealing ring.
6. air pressure proportional control valve as claimed in claim 1, it is characterised in that described main valve plug back-moving spring base one end is even
Being connected to circlip for hole, described circlip for hole is embedded in described upper shell.
7. the air pressure proportional control valve as described in any one of claim 1-6, it is characterised in that also include leather cup, described leather cup
It is located in described lower house, forms air pressure between described leather cup and described upper shell and control chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131149.8U CN205479624U (en) | 2016-02-22 | 2016-02-22 | Atmospheric pressure proportional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131149.8U CN205479624U (en) | 2016-02-22 | 2016-02-22 | Atmospheric pressure proportional control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479624U true CN205479624U (en) | 2016-08-17 |
Family
ID=56677734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620131149.8U Active CN205479624U (en) | 2016-02-22 | 2016-02-22 | Atmospheric pressure proportional control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479624U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546194A (en) * | 2016-02-22 | 2016-05-04 | 浙江大学台州研究院 | Air pressure proportional control valve |
| CN112460300A (en) * | 2020-11-24 | 2021-03-09 | 南京工程学院 | Gas proportional pressure reducing valve |
-
2016
- 2016-02-22 CN CN201620131149.8U patent/CN205479624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546194A (en) * | 2016-02-22 | 2016-05-04 | 浙江大学台州研究院 | Air pressure proportional control valve |
| CN112460300A (en) * | 2020-11-24 | 2021-03-09 | 南京工程学院 | Gas proportional pressure reducing valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |