CN204677774U - Improve the gas individual layer switch valve of sealing - Google Patents
Improve the gas individual layer switch valve of sealing Download PDFInfo
- Publication number
- CN204677774U CN204677774U CN201520121911.XU CN201520121911U CN204677774U CN 204677774 U CN204677774 U CN 204677774U CN 201520121911 U CN201520121911 U CN 201520121911U CN 204677774 U CN204677774 U CN 204677774U
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- valve
- body assembly
- valve body
- couple
- air flue
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- Withdrawn - After Issue
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Abstract
Improve the gas individual layer switch valve of sealing, comprise valve body assembly, it establishes air flue entrance, outlet, establishes spool in assembly, also comprises moving armature, and valve body assembly one end arranges electromagnet; The Returnning spring of valve closing is controlled when also comprising electromagnet power-off; It is characterized in that: spool at least comprises valve rod and valve block; Valve block be one and along valve rod axial translation operate in valve body assembly; The valve standing part coordinated with valve block to form valve mechanism is provided with between the inherent air flue entrance of valve body assembly, air passage outlet; Normally off when valve mechanism normality is electromagnet no electric circuit; Spool also comprises a pressure balance face, and it is relative with valve block fixing, seal isolation between the additional air flue that this face is communicated with and air passage outlet, but is connected with air flue entrance, and the suction pressure direction that pressure balance face is subject to by suction pressure direction and valve block is contrary.Large discharge under this valve pressurized gas condition, respond injection fast, and better tightness during valve closing.
Description
Technical field
The utility model relates to a kind of gas open-close valve.
Background technique
Because the density of gas is lower, the latus rectum size of the valve needed when switch flow is larger is also comparatively large, but larger aero operating pressure acts on the unbalanced force that valve produces can produce inhibition to valve opening and closing campaign, the restriction response time.Therefore, the high speed electromagnetic gas open-close valve of Electromagnetic Drive is adopted generally only can to adapt to less traffic requirement and lower gas pressure condition.US Patent No. 2007089792A1 proposes the stressed unbalanced scheme of a kind of solution spool, but the gas open-close valve in this model utility adopts double beat valve chip architecture and causes sealability to be in actual applications difficult to realize.
When gas open-close valve is applied as gas spray valve, its sealing, injection flow and switching response time are the important parameters weighing its quality.
Model utility content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of gas individual layer switch valve improving sealing, this switch valve is while realizing large discharge under pressurized gas condition, response is sprayed fast, the better tightness of valve closing can be ensured when valve closing, close more reliable.
In order to solve the problem, the utility model is by the following technical solutions: the gas individual layer switch valve improving sealing, comprise valve body assembly, valve body assembly is provided with air flue entrance, air passage outlet, spool is provided with in valve body assembly, also comprise moving armature, one end of described valve body assembly arranges static gag bit and electromagnetic coil forms electromagnet; The Returnning spring of valve closing is controlled when also comprising electromagnet power-off; It is characterized in that: the valve block that described spool at least comprises valve rod and is arranged on valve rod; Described valve block is one, valve block along valve rod axial translation operate in described valve body assembly;
In valve body assembly, between air flue entrance, air passage outlet, be provided with the valve standing part coordinated with described valve block to form valve mechanism; Normally off when described valve mechanism normality is described electromagnet no electric circuit;
Described spool also comprises a pressure balance face, pressure balance face is relative with valve block fixing, seal isolation between the additional air flue that this pressure balance face is communicated with and described air passage outlet, and this additional air flue is connected with described air flue entrance, and the suction pressure direction that pressure balance face is subject to by suction pressure direction and valve block is contrary.
As further technological scheme: spool comprises a sliding plug couple, sliding plug couple is relative with described valve block fixing, forms slipper seal structure between sliding plug couple and valve body assembly; The described pressure balance face that spool comprises is an end face of this sliding plug couple, is provided with gap between this end face and internal surface of valve body assembly, and this gap is the air inlet end of additional air flue.
Further: described sliding plug couple, valve block all fix as one with valve rod.
Further: described sliding plug couple is cylindric, described valve block is discoid, described sliding plug couple and described valve block, described valve rod three coaxial line.
In addition, further technological scheme: coordinate with valve block form valve mechanism for toroidal race, described toroidal race comprises cyclic spring seat ring, annular hard seat ring; The axis of described cyclic spring seat ring, the axis of annular hard seat ring are respectively with the axis being parallel of described valve rod or overlap; Described cyclic spring seat ring and described valve block form first valve mechanism, and described annular hard seat ring and described valve block form second valve mechanism.
In addition, further: the valve rod of described spool stretches out outside valve body assembly, positioning attachment is moved in the relatively-stationary connection one in end being positioned at the valve rod outside valve body assembly, relatively-stationaryly on described valve body assembly arrange quiet positioning attachment, the gap axially between described quiet positioning attachment and dynamic positioning attachment along valve rod is the stroke of valve rod; One end of described Returnning spring is relative with valve body assembly fixing, and the other end is relative with dynamic positioning attachment fixing.
Further: described additional air flue also comprises valve rod and stretches out the gap at valve body assembly place, the gap between described dynamic positioning attachment and quiet positioning attachment.
As further technological scheme, described valve body assembly comprises valve body, couple cover; Couple cover is installed in valve body, and described air passage outlet runs through valve body and couple cover; The hole forming slipper seal structure with described sliding plug couple is arranged on one end that couple is overlapped.
In addition, also can be further: the hole that described valve body assembly matches with sliding plug couple is communicated with plunger lubricant medium injection channel.
Further: described plunger lubricant medium injection channel is provided with many along the radial direction of this sliding plug couple.
The beneficial effects of the utility model are: this injection valve, realizing large discharge under pressurized gas condition, response is sprayed fast while, can ensure the better tightness of valve closing when valve closing, close more reliable, and have simplified structure; In addition this injection valve also can realize quantitative injection further simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of spool in the utility model embodiment one;
Fig. 3 is the structural representation of the utility model embodiment two;
Fig. 4 is the structural representation of spool in the utility model embodiment two;
In figure:
1 valve body,
2 couple covers,
3 air passage outlet,
4 spools, 41 valve blocks, 42 sliding plug couples, 43 valve rods, 44 pressure balance faces, 45 axial holes,
5 moving armatures,
6 electromagnet,
7 annular hard seat rings,
8 plunger lubricant medium injection channels,
9 pairs of half planchets watt,
10 quiet positioning attachments,
11 air flue entrances,
12 Returnning springs,
13 dynamic positioning attachments,
14 lockers,
15 cyclic spring seat rings,
16 valve body assemblies,
17 additional air flues, 171 gaps, 172 gaps, 173 gaps, 174 gaps.
Embodiment
As shown in Figure 1, 2, embodiment one: the gas individual layer switch valve of this improvement sealing comprises valve body assembly 16, valve body assembly 16 is provided with air flue entrance 11, air passage outlet 3.Spool 4, moving armature 5 is provided with in valve body assembly 16.One end of described valve body assembly 16 arranges static gag bit and electromagnetic coil forms electromagnet 6.The gas individual layer switch valve of this improvement sealing controls the Returnning spring 12 of valve closing when also comprising electromagnet 6 power-off.
Described spool 4 comprises valve rod 43 and is arranged on the valve block 41 on valve rod 43.Described valve block 41 is one, and valve block 41 is along the operating in valve body assembly 16 of axial translation of valve rod 43.
In valve body assembly 16, between air flue entrance 11, air passage outlet 3, be provided with the valve standing part coordinating to form valve mechanism with valve block 41.Normally off when described valve mechanism normality is described electromagnet no electric circuit.
Described spool 4 also comprises a pressure balance face 44, pressure balance face 44 is relative with valve block 41 fixing, seal isolation between the additional air flue 17 that this pressure balance face 44 is communicated with and air passage outlet 3, and this additional air flue 17 is connected with described air flue entrance 11, and pressure balance face 44 is contrary with the suction pressure direction that valve block 41 is subject to by suction pressure direction.
Its working principle is: under normality, and namely during electromagnet 6 no electric circuit, moving armature 5 is separated with electromagnet 6, and the valve mechanism that valve block 41 and valve standing part are formed is closed condition.The pressurized gas entered in valve body assembly 16 by air flue entrance 11 form very large pressure to valve block 41, and Returnning spring 12 also applies the power in same direction simultaneously to valve block 41.Now, because additional air flue is communicated with air flue entrance, so also passed into pressurized gas in additional air flue 17, pressurized gas form certain pressure to pressure balance face 44, and this pressure is balance pressure, and this balance pressure is contrary with the pressure direction suffered by valve block 41, thus the opening force needed for reducing when valve block 41 is opened, also be that under high pressure conditions, valve can respond unlatching fast, realize large discharge and spray.And the valve block of monolithic has simplified structure than the valve block of biplate, also avoid biplate valve block simultaneously and can not take a seat after the valve closing that causes simultaneously the bad problem of sealing occurs, improve the reliability of valve.
The further technology of this embodiment: spool 4 comprises a sliding plug couple 42, sliding plug couple 42 is relative fixing with described valve block 41, forms slipper seal structure between sliding plug couple 42 and valve body assembly 16.Slidable fit relation between sliding plug couple and valve body assembly serves the leading role to valve block movement.In order to simplify structure further, described pressure balance face 44 is set to an end face of this sliding plug couple 42, is provided with gap 171 between this end face and internal surface of valve body assembly, and this gap 171 is the air inlet end of additional air flue 17.
General valve body mostly adopts cast member, and the face that is slidably matched that directly machining accuracy is higher on casting plane but also will to realize slipper seal be very difficult, therefore in this embodiment, described valve body assembly comprises valve body 1, couple cover 2; Couple cover 2 is installed in valve body 1, and described air passage outlet 3 runs through valve body 1 and couple cover 2.The hole forming slipper seal structure with described sliding plug couple 42 is arranged on one end that couple overlaps 2.Such couple cover 2 can better material and the high processing technology preparation of precision, to realize the processing request of slip surface, also controls the cost of entirety in addition.
In order to ensure sealing and the lubrication at slip surface place, the hole that described valve body assembly matches with sliding plug couple 42 is communicated with plunger lubricant medium injection channel 8.In this embodiment, valve body 1 and couple cover 2 are run through in plunger lubricant medium injection channel 8.
In order to ensure lubrication and reliably sealing uniformly around sliding plug, described plunger lubricant medium injection channel 8 is provided with many and the best uniform setting of axis around sliding plug couple 42 along the radial direction of sliding plug couple 42.
The further technology that this embodiment takes: for further simplifying the structure of spool and ensureing the reliability of spool work, described sliding plug couple 42, valve block 41 all fix as one with valve rod 43.But also further: described sliding plug couple 42 is cylindric, and described valve block 41 is discoid, described sliding plug couple 42 and described valve block 41, described valve rod 43 three coaxial line.The cylndrical surface slipper seal structure that columned sliding plug couple is formed, action is more reliably happy, and sealing more easily realizes.
In addition, in this embodiment, coordinate with valve block form valve mechanism for toroidal race, the toroidal race in this embodiment comprises cyclic spring seat ring 15, annular hard seat ring 7.The axis of described cyclic spring seat ring 15, the axis of annular hard seat ring 7 (can certainly be parallel with the dead in line of described valve rod 43 respectively, just in order to reduce numerous and diverse and try one's best reducing mechanism volume and the saving lay-by material processed in working process, and preferably overlap).Described cyclic spring seat ring 15 forms first valve mechanism with described valve block 41, and described annular hard seat ring 7 forms second valve mechanism with described valve block 41.During valve closing, valve block 41 contacts prior to cyclic spring seat ring 15, further tight seal, and first valve mechanism closes.Valve block 41 continues to move in the same direction, extrudes cyclic spring seat ring 15, and final valve block 41 fits tightly with annular hard seat ring 7 again, and second valve mechanism is closed.During valve opening, on the contrary order, and first valve block 41 departs from annular hard seat ring 7, and namely second valve mechanism is opened, and then departs from cyclic spring seat ring 15, i.e. first valve mechanism opening.Soft or hard seat ring combines, and improves the sealing of valve closing.And adopt annular hard seat ring, twice toroidal race all can not be subjected to displacement, thus reduce the probability that valve breaks down.
In addition, this embodiment is in order to realize quantitative injection under high pressure, further take following technology: its valve rod 43 stretches out outside valve body assembly, positioning attachment 13 is moved in the relatively-stationary connection one in end being positioned at the valve rod 43 outside valve body assembly, relatively-stationaryly on described valve body assembly arranges quiet positioning attachment 10; One end of described Returnning spring 12 is relative with valve body assembly fixing, and the other end is relative with dynamic positioning attachment fixing.
The gap axially between quiet positioning attachment 10 and dynamic positioning attachment 13 along valve rod 43 is the stroke of valve rod 43, and because this embodiment's middle valve plate 41 is fixed as one with valve rod 43, therefore this gap final is the stroke of valve block 41, and this gap is limited to a millimeter rank.
In this embodiment, in order to locker 14 is first installed in the end of valve rod 43, locker 14 is outer installs dynamic positioning attachment 13 again, is be assembled together by cone match between locker 14 and dynamic positioning attachment 13.During valve open, spool 4 moves left, and drives locker 14 to move to left, and locker 14 utilizes its tapering to drive dynamic positioning attachment 13 to move to left, and Returnning spring 12 is compressed.After electromagnet 6 power-off, so the tension force of Returnning spring 12 drives dynamic positioning attachment 13 to move to right, namely dynamic positioning attachment 13 drives is with ovable valve stem 43 to move to right by locker 14, thus valve rod 43 is with moving valve plate 41 to move to right, and realizes the closedown of valve.
In this embodiment, Returnning spring 12 be conveniently installed and have guiding supporting function to Returnning spring, quiet positioning attachment 10 is set to tubulose, gap be sleeved on outside valve rod 43, it can be used as the quiet spring seat of Returnning spring simultaneously, realize one end of Returnning spring and the relative fixing of valve body assembly.
And for dynamic positioning attachment, locker, due to cone match, can only first be sleeved on valve rod by dynamic positioning attachment during installation, and then assemble locker.And conveniently the installation of locker needs first dynamic positioning system to be moved to the left a segment distance, could be installed on valve rod by locker, and this segment distance is the location stroke much larger than valve rod, if namely quiet positioning attachment is fixed on valve body assembly, then locker cannot complete installation, therefore between the left end and valve body of quiet positioning attachment, be provided with two half planchets watts 9 of easy disassembly, two panels semicolumn pad watt coordinates lower and valve body 1 is fastening as a whole at outside valve seat (accompanying drawing is not shown).Two half planchet watts 9 also can adopt other mechanical connection manners and valve body 1 to be fastened as a whole.Therefore do not draw valve seat, those skilled in the art also can draw concrete Placement and structural relation according to common practise and routine techniques means.
Dismantle two half planchet watts 9, be moved to the left by quiet positioning attachment 10, dynamic positioning attachment 13 obtains enough spaces and ensures the assembling logic of locker 14.Dynamic positioning attachment 13 is also moved to the left, after locker 14 is installed, more dynamic positioning attachment 13 is moved to right, quiet positioning attachment 10 moves to right, and finally reinstalled two half planchet watts 9.
In this embodiment, dynamic gap 174 between positioning attachment 13 with quiet positioning attachment 10, quiet positioning attachment are communicated with the gap 173 between valve rod, the gap 172 between valve rod with valve body, the gap 171 between pressure balance face 44 and the internal surface of valve body assembly to form and add air flue 17.
The inlet end of additional air flue is gap 174 between positioning attachment 13 and quiet positioning attachment 10.This gap 174 can realize being communicated with air flue entrance 11 by a pipeline or the valve seat being provided with air flue, if or ensure that air flue entrance, gap 174 are under same anticyclonic environment, to realize also pouring pressurized gas in this additional air flue 17, thus the pressure balance face of making can be subject to the contrary power in direction, partly or entirely to offset the power of the pressurized gas that valve block is subject to.Be not limited to above-mentioned form with the mode of communicating of air flue entrance 11, the formation of additional air flue 17 is also not limited to above-mentioned form, can also adopt the technological means of other substantial equivalences to realize, not enumerate at this.
As shown in Figure 3,4, embodiment two: this embodiment and embodiment one main distinction part are: in this embodiment sliding plug couple 42 directly and valve block 41 are integrated setting, the additional air flue passing into pressurized gas to side, pressure balance face 44 is arranged in valve body assembly, specifically directly in valve block, sliding plug couple, arrange axial hole 45, air flue entrance is communicated with this axial hole.After pressurized gas enter from air flue entrance, a part enters into the opposite side of sliding plug couple by the axial hole on valve block and slip couple, make the air pressure of valve block and sliding plug couple both sides equal, thus reach Open valve labour-saving effect.All the other major techniques are all identical with embodiment one, and also can directly skimble-skamblely determine from accompanying drawing, no longer carefully state.
"left", "right" in the utility model is all relative positions adopted for convenience of description, can not understand and the restriction that form the utility model protection domain as absolute position.
Above-described embodiment is only preferred embodiment of the present utility model, and protection domain of the present utility model can not be understood to only be confined to above-mentioned mode of execution.
Claims (10)
1. improve the gas individual layer switch valve of sealing, comprise valve body assembly, valve body assembly is provided with air flue entrance, air passage outlet, in valve body assembly, is provided with spool, also comprise moving armature, one end of described valve body assembly arranges static gag bit and electromagnetic coil forms electromagnet; The Returnning spring of valve closing is controlled when also comprising electromagnet power-off; It is characterized in that: the valve block that described spool at least comprises valve rod and is arranged on valve rod; Described valve block is one, valve block along valve rod axial translation operate in described valve body assembly;
In valve body assembly, between air flue entrance, air passage outlet, be provided with the valve standing part coordinated with described valve block to form valve mechanism; Normally off when described valve mechanism normality is described electromagnet no electric circuit;
Described spool also comprises a pressure balance face, pressure balance face is relative with valve block fixing, seal isolation between the additional air flue that this pressure balance face is communicated with and described air passage outlet, and this additional air flue is connected with described air flue entrance, and the suction pressure direction that pressure balance face is subject to by suction pressure direction and valve block is contrary.
2. the gas individual layer switch valve improving sealing according to claim 1, it is characterized in that: spool comprises a sliding plug couple, sliding plug couple is relative with described valve block fixing, forms slipper seal structure between sliding plug couple and valve body assembly; The described pressure balance face that spool comprises is an end face of this sliding plug couple, is provided with gap between this end face and internal surface of valve body assembly, and this gap is the air inlet end of additional air flue.
3. the gas individual layer switch valve improving sealing according to claim 2, is characterized in that: described sliding plug couple, valve block all fix as one with valve rod.
4. the gas individual layer switch valve improving sealing according to claim 3, it is characterized in that: described sliding plug couple is cylindric, described valve block is discoid, described sliding plug couple and described valve block, described valve rod three coaxial line.
5. according to the gas individual layer switch valve of the arbitrary described improvement sealing of claim 1-4, it is characterized in that: coordinates what form valve mechanism to be toroidal race with valve block, described toroidal race comprises cyclic spring seat ring, annular hard seat ring; The axis of described cyclic spring seat ring, the axis of annular hard seat ring are respectively with the axis being parallel of described valve rod or overlap; Described cyclic spring seat ring and described valve block form first valve mechanism, and described annular hard seat ring and described valve block form second valve mechanism.
6. the gas individual layer switch valve of the improvement sealing according to claim 3 or 4, it is characterized in that: the valve rod of described spool stretches out outside valve body assembly, positioning attachment is moved in the relatively-stationary connection one in end being positioned at the valve rod outside valve body assembly, relatively-stationaryly on described valve body assembly arrange quiet positioning attachment, the gap axially between described quiet positioning attachment and dynamic positioning attachment along valve rod is the stroke of valve rod; One end of described Returnning spring is relative with valve body assembly fixing, and the other end is relative with dynamic positioning attachment fixing.
7. the gas individual layer switch valve improving sealing according to claim 6, is characterized in that: described additional air flue also comprises valve rod and stretches out the gap at valve body assembly place, the gap between described dynamic positioning attachment and quiet positioning attachment.
8. the gas individual layer switch valve improving sealing according to claim 2, is characterized in that: described valve body assembly comprises valve body, couple cover; Couple cover is installed in valve body, and described air passage outlet runs through valve body and couple cover; The hole forming slipper seal structure with described sliding plug couple is arranged on one end that couple is overlapped.
9. the gas individual layer switch valve improving sealing according to claim 2, is characterized in that: the hole that described valve body assembly matches with sliding plug couple is communicated with plunger lubricant medium injection channel.
10. the gas individual layer switch valve improving sealing according to claim 9, is characterized in that: described plunger lubricant medium injection channel is provided with many along the radial direction of this sliding plug couple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121911.XU CN204677774U (en) | 2015-03-02 | 2015-03-02 | Improve the gas individual layer switch valve of sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121911.XU CN204677774U (en) | 2015-03-02 | 2015-03-02 | Improve the gas individual layer switch valve of sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677774U true CN204677774U (en) | 2015-09-30 |
Family
ID=54177467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520121911.XU Withdrawn - After Issue CN204677774U (en) | 2015-03-02 | 2015-03-02 | Improve the gas individual layer switch valve of sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633137A (en) * | 2015-03-02 | 2015-05-20 | 张志平 | Airtightness-improved single-beat gas switch valve |
-
2015
- 2015-03-02 CN CN201520121911.XU patent/CN204677774U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633137A (en) * | 2015-03-02 | 2015-05-20 | 张志平 | Airtightness-improved single-beat gas switch valve |
| CN104633137B (en) * | 2015-03-02 | 2017-03-15 | 济南天易迅达电气科技有限公司 | Improve the gas monolayer switch valve of sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Xuhong Inventor after: Liu Zhongbao Inventor before: Zhang Zhiping |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160512 Address after: Changqing District of Ji'nan City, Shandong province 250000 guyuanhu Danfeng Street Office District, Da Yan Guan Qu Office Room 260 Patentee after: Ji'nan Tianyi Schindler Electric Technology Co Ltd Address before: 250001 Shandong City, Ji'nan Province Central District, the village of three 14-1-401 Patentee before: Zhang Zhiping |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150930 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |