CN207796172U - A kind of high-precision pneumatic proportional pressure valve - Google Patents
A kind of high-precision pneumatic proportional pressure valve Download PDFInfo
- Publication number
- CN207796172U CN207796172U CN201721884140.5U CN201721884140U CN207796172U CN 207796172 U CN207796172 U CN 207796172U CN 201721884140 U CN201721884140 U CN 201721884140U CN 207796172 U CN207796172 U CN 207796172U
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- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- rotary table
- integral structure
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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 high-precision pneumatic proportional pressure valves,Including valve body,Contact switch is arranged in the valve pars intramuralis of the valve body,And contact switch is an integral structure with valve body,The valve body offers gas outlet on the side valve wall far from contact switch,It is provided with pressure sensor below the gas outlet,And pressure sensor is an integral structure with valve body,Air inlet is offered above the gas outlet,Exhaust outlet is offered above the air inlet,The top of the valve body is equipped with proportion electro-magnet,The top of the proportion electro-magnet is provided with upper casing,The utility model is provided with thread barrel and top rotary table,Make spool to when moving down by the top rotary table of setting,It can be rotated in thread barrel,Avoid spool and valve pocket direct friction,Greatly improve the service life of valve,And while preventing valve pocket from wearing,Rotational structure can also improve the movement speed of spool,To promote response speed.
Description
Technical field
The utility model belongs to pressure valve technical field, and in particular to a kind of high-precision pneumatic proportional pressure valve.
Background technology
Valve can be divided into two kinds to the control of flow, and one is switches to control:Either it is standard-sized sheet, fully closed, or flow
Or maximum, minimum, without intermediate state, such as common electromagnetism straight-through valve, solenoid directional control valve, electro-hydraulic reversing valve, another kind are
Continuous control：Valve port can open any one aperture as needed, thus control the size by flow, and this kind of valve has manually
Control, such as throttle valve, also have it is automatically controlled, such as proportioning valve, servo valve.
But pneumatic proportional pressure valve using effect currently on the market is bad, during pressure adjusts, spool with
Phase mutual friction between valve pocket easily causes valve pocket abrasion, so as to shorten the service life of valve, can not detect and reach spring Repeated Compression
The situation that can not be resetted afterwards.
Utility model content
The purpose of this utility model is to provide a kind of high-precision pneumatic proportional pressure valves, to solve in above-mentioned background technology
It is proposed during pressure adjust, phase mutual friction between spool and valve pocket, easily cause valve pocket wear, so as to shorten making for valve
With the service life, the problem of situation that can not be resetted after reaching spring Repeated Compression can not be detected.
To achieve the above object, the utility model provides the following technical solutions：A kind of high-precision pneumatic proportional pressure valve, packet
Valve body is included, contact switch is arranged in the valve pars intramuralis of the valve body, and contact switch is an integral structure with valve body, the valve body
Gas outlet is offered on a side valve wall far from contact switch, pressure sensor, and pressure are provided with below the gas outlet
Sensor is an integral structure with valve body, and air inlet is offered above the gas outlet, is offered above the air inlet
Exhaust outlet, the top of the valve body are equipped with proportion electro-magnet, and the top of the proportion electro-magnet is provided with upper casing, and upper casing with
Proportion electro-magnet is an integral structure, and the upper casing is internally provided with GW420A master controllers, the GW420A master controllers
It is fixedly connected with upper casing by bolt, the side of the GW420A master controllers is provided with buzzer, and the buzzer passes through spiral shell
Bolt is fixedly connected with upper casing, and the valve body is internally provided with spring, and spring is an integral structure with valve body, the spring
Top is provided with lower rotary table, spool is provided on the inside of the lower rotary table, and spool is rotatablely connected with lower rotary table by ball, institute
It states and is provided with valve pocket on the outside of spool, and valve pocket is an integral structure with valve body, the top of the valve pocket is discharge chamber, the valve
The lower section of set chamber in order to control, is provided with thread barrel, and thread barrel is an integral structure with valve pocket, institute between the spool and valve pocket
The top for stating spool is provided with top rotary table, and top rotary table is rotatablely connected with spool by ball, is provided with above the turntable
The top of gasket, the gasket is provided with push rod, and the gasket is an integral structure with push rod, and the push rod is mounted on
On proportion electro-magnet, the pressure sensor, contact switch, proportion electro-magnet and buzzer are electrical with GW420A master controllers
Connection, the GW420A master controllers are electrically connected with external power supply.
Preferably, hole is opened up on the valve pocket.
Preferably, the intermediate position of the spool offers venthole.
Preferably, the first half of the spool is provided with screw thread.
Preferably, the aperture for being connected to pressure sensor is offered below the gas outlet.
Compared with prior art, the utility model has the beneficial effects that：
(1) the utility model is provided with thread barrel and top rotary table, makes spool to when moving down by the top rotary table of setting, can
It is rotated in thread barrel, avoids spool and valve pocket direct friction, greatly improve the service life of valve, and prevent valve pocket from grinding
While damage, rotational structure can also improve the movement speed of spool, to promote response speed.
(2) the utility model is provided with contact switch, it is contemplated that spring can not restore original during Repeated Compression
Highly, cause spool that cannot reset, used to influence valve, valve core reset shape can be detected by the contact switch of setting
Condition, and when that can not reset, prompt tone is sent out by buzzer.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model stop working state；
Fig. 3 is the structural schematic diagram of the utility model top rotary table；
Fig. 4 is the circuit block diagram of the utility model；
In figure：1- valve bodies, 2- pressure sensors, 3- control chambers, the gas outlets 4-, 5- spools, 6- air inlets, 7- top rotary tables,
8- exhaust outlets, 9- discharge chambers, 10- proportion electro-magnets, 11- upper casings, 12-GW420A master controllers, 13- buzzers, 14- push rods,
15- gaskets, 16- thread barrels, 17- valve pockets, 18- contact switch, 19- lower rotary tables, 20- springs.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of high-precision pneumatic proportional pressure valve, including
Contact switch 18 is arranged in the valve pars intramuralis of valve body 1, valve body 1, and contact switch 18 is an integral structure with valve body 1, and valve body 1 is remote
From gas outlet 4 is offered on a side valve wall of contact switch 18, the lower section of gas outlet 4 is provided with pressure sensor 2, detects outlet
Atmospheric pressure value at mouth 4 is convenient for the pressure value of adjusting control chamber 3 and discharge chamber 9, and pressure sensor 2 and valve body 1 are integral type knot
The top of structure, gas outlet 4 offers air inlet 6, and the top of air inlet 6 offers exhaust outlet 8, and the top of valve body 1 is equipped with ratio
Example electromagnet 10, the top of proportion electro-magnet 10 is provided with upper casing 11, and upper casing 11 is an integral structure with proportion electro-magnet 10,
Upper casing 11 is internally provided with GW420A master controllers 12, and GW420A master controllers 12 are fixedly connected by bolt with upper casing 11,
The side of GW420A master controllers 12 is provided with buzzer 13, and buzzer 13 is fixedly connected by bolt with upper casing 11, valve body 1
It is internally provided with spring 20, spool 5 is enable to reset, and spring 20 is an integral structure with valve body 1, the top setting of spring 20
There is lower rotary table 19, the inside of lower rotary table 19 is provided with spool 5, and spool 5 is rotatablely connected with lower rotary table 19 by ball, spool 5
Outside be provided with valve pocket 17, and valve pocket 17 is an integral structure with valve body 1, and the top of valve pocket 17 is discharge chamber 9, valve pocket 17
Lower section chamber 3 in order to control, are provided with thread barrel 16, and thread barrel 16 is an integral structure with valve pocket 17 between spool 5 and valve pocket 17,
The top of spool 5 is provided with top rotary table 7, and top rotary table 7 is rotatablely connected with spool 5 by ball, and the top of turntable 7 is provided with close
Packing 15 closes the venthole being arranged on spool 5 by gasket 15, realizes that control chamber 3 and discharge chamber 9 are isolated, gasket 15
Top be provided with push rod 14, gasket 15 is an integral structure with push rod 14, push rod 14 be mounted on proportion electro-magnet 10 on, pressure
Force snesor 2, contact switch 18, proportion electro-magnet 10 and buzzer 13 are electrically connected with GW420A master controllers 12,
GW420A master controllers 12 are electrically connected with external power supply.
For the ease of gas from the entrance control chamber 3 of air inlet 6, the present embodiment, it is preferred that offer hole on valve pocket 17
Hole.
It is enough in spool 5, the present embodiment in order to allow gas to, it is preferred that the intermediate position of spool 5 offers ventilation
Hole.
In order to enable spool 5 to be rotated in thread barrel 16, in the present embodiment, it is preferred that the first half of spool 5 is provided with spiral shell
Line.
For the ease of 2 induction air pressure of pressure sensor, in the present embodiment, it is preferred that the lower section of gas outlet 4 offers connection
To the aperture of pressure sensor 2.
The operation principle and process for using of the utility model：When not in use, the air hole that spool 5 can will open up on valve pocket 17
It blocks, when startup, after setting a pressure value, after 2 induction pressure size of pressure sensor, signal is fed back into GW420A master
Controller 12 controls proportion electro-magnet 10 by GW420A master controllers 12, increases electric current, push rod 14 is made to push under gasket 15
It moves, when moving to certain position, gasket 15 compresses the venthole opened up among spool 5, and discharge chamber 9 is located at this time with control chamber 3
In closed state, when gasket 15 further moves down, spool 5 can be rotated along thread barrel 16, to further move down, with
Spool 5 moves down, and air inlet 6 can import gas in control chamber 3 from the recess of spool 5, then is discharged from gas outlet 4, work as pressure
When the pressure that sensor sense 2 should arrive is identical as the pressure value of setting, electric current is constant, and spool 5 stops movement, works as pressure sensor
When 2 pressure sensed are more than setting numerical value, proportion electro-magnet 10 is controlled by GW420A master controllers 12, reduces electric current, pushes away
Bar 14 pulls spool 5 to move up, and gasket 15 is detached from top rotary table 7, and control chamber 3 is connected to discharge chamber 9, and the gas in control chamber 3 is logical
It crosses air hole to enter in discharge chamber 9, be finally discharged from exhaust outlet 8, meanwhile, spool 5 starts to reset under the action of spring 20,
And air inlet 6 is turned down, so that the pressure of gas outlet 4 is reduced, after spool 5 returns to position, contact switch 18 can be triggered, if valve
Core 5 can not reset, then GW420A master controllers 12 control buzzer 13 and send out prompt tone.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of high-precision pneumatic proportional pressure valve, including valve body (1), it is characterised in that：The valve pars intramuralis of the valve body (1) is set
It is equipped with contact switch (18), and contact switch (18) is an integral structure with valve body (1), the valve body (1) is far from contact switch
(18) gas outlet (4) is offered on a side valve wall, and pressure sensor (2), and pressure are provided with below the gas outlet (4)
Sensor (2) is an integral structure with valve body (1), and air inlet (6), the air inlet are offered above the gas outlet (4)
(6) exhaust outlet (8) is offered above, the top of the valve body (1) is equipped with proportion electro-magnet (10), the proportion electro-magnet
(10) top is provided with upper casing (11), and upper casing (11) is an integral structure with proportion electro-magnet (10), the upper casing (11)
Be internally provided with GW420A master controllers (12), the GW420A master controllers (12) pass through bolt and upper casing (11) is fixed connects
It connects, the side of the GW420A master controllers (12) is provided with buzzer (13), and the buzzer (13) passes through bolt and upper casing
(11) it being fixedly connected, the valve body (1) is internally provided with spring (20), and spring (20) is an integral structure with valve body (1),
The top of the spring (20) is provided with lower rotary table (19), and spool (5), and spool are provided on the inside of the lower rotary table (19)
(5) be rotatablely connected by ball with lower rotary table (19), be provided with valve pocket (17) on the outside of the spool (5), and valve pocket (17) with
Valve body (1) is an integral structure, and the top of the valve pocket (17) is discharge chamber (9), the lower section of the valve pocket (17) chamber in order to control
(3), thread barrel (16) is provided between the spool (5) and valve pocket (17), and thread barrel (16) and valve pocket (17) are integral type
The top of structure, the spool (5) is provided with top rotary table (7), and top rotary table (7) is rotatablely connected with spool (5) by ball, institute
It states and is provided with gasket (15) above top rotary table (7), the top of the gasket (15) is provided with push rod (14), the sealing
Pad (15) is an integral structure with push rod (14), and the push rod (14) is mounted on proportion electro-magnet (10), the pressure sensing
Device (2), contact switch (18), proportion electro-magnet (10) and buzzer (13) are electrically connected with GW420A master controllers (12),
The GW420A master controllers (12) are electrically connected with external power supply.
2. a kind of high-precision pneumatic proportional pressure valve according to claim 1, it is characterised in that：It is opened on the valve pocket (17)
Equipped with hole.
3. a kind of high-precision pneumatic proportional pressure valve according to claim 1, it is characterised in that：In the spool (5)
Between position offer venthole.
4. a kind of high-precision pneumatic proportional pressure valve according to claim 1, it is characterised in that：The spool (5) it is upper
Half portion is provided with screw thread.
5. a kind of high-precision pneumatic proportional pressure valve according to claim 1, it is characterised in that：The gas outlet (4)
Lower section offers the aperture for being connected to pressure sensor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721884140.5U CN207796172U (en) | 2017-12-29 | 2017-12-29 | A kind of high-precision pneumatic proportional pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721884140.5U CN207796172U (en) | 2017-12-29 | 2017-12-29 | A kind of high-precision pneumatic proportional pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207796172U true CN207796172U (en) | 2018-08-31 |
Family
ID=63278909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721884140.5U Expired - Fee Related CN207796172U (en) | 2017-12-29 | 2017-12-29 | A kind of high-precision pneumatic proportional pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207796172U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256713A (en) * | 2018-11-23 | 2019-01-22 | 贵州电网有限责任公司 | Explosion-protection equipment and method at the top of switchgear |
| CN110657260A (en) * | 2019-09-30 | 2020-01-07 | 杭州欣茂科技有限公司 | Solar energy light, heat and electricity heat automatic switch-over control valve |
| CN112303053A (en) * | 2020-09-21 | 2021-02-02 | 南京威孚金宁有限公司 | Control system and control method for electric proportional threaded cartridge valve group |
-
2017
- 2017-12-29 CN CN201721884140.5U patent/CN207796172U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256713A (en) * | 2018-11-23 | 2019-01-22 | 贵州电网有限责任公司 | Explosion-protection equipment and method at the top of switchgear |
| CN110657260A (en) * | 2019-09-30 | 2020-01-07 | 杭州欣茂科技有限公司 | Solar energy light, heat and electricity heat automatic switch-over control valve |
| CN112303053A (en) * | 2020-09-21 | 2021-02-02 | 南京威孚金宁有限公司 | Control system and control method for electric proportional threaded cartridge valve group |
| CN112303053B (en) * | 2020-09-21 | 2022-08-09 | 南京威孚金宁有限公司 | Control system and control method for electric proportional threaded cartridge valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180831 Termination date: 20211229 |