CN204403426U - Modulating valve - Google Patents
Modulating valve Download PDFInfo
- Publication number
- CN204403426U CN204403426U CN201420871098.3U CN201420871098U CN204403426U CN 204403426 U CN204403426 U CN 204403426U CN 201420871098 U CN201420871098 U CN 201420871098U CN 204403426 U CN204403426 U CN 204403426U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- rod
- spool
- core
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of modulating valve, at least comprises valve body, valve seat, valve rod, spool and sleeve; Described valve seat is provided with in described valve body; Described spool is arranged on described valve seat; Described spool upper end connects described valve rod, and described valve body upper end is provided with valve gap; Described spool comprises big valve core and small valve core, described big valve core is arranged on described valve seat, described jacket casing is located on described big valve core, described small valve core lower end is arranged with spring, described spring one end is against on described small valve core, and its other end is against on described big valve core, described small valve core upper end connects described valve rod; Described valve gap is positioned at above described small valve core; Described valve gap upper end is provided with support, and described cradle top surface is connected with many springs pneumatic diaphragn actuating mechanism; The push rod of described many springs pneumatic diaphragn actuating mechanism is positioned on described valve rod end face; The barrel lower end of described sleeve offers multiple through hole.This modulating valve not only leakage rate is low, and noise is low.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of modulating valve.
Background technique
Common sleeve adjusting valve comprises valve body, valve seat, valve rod, spool, and sleeve; Valve seat is provided with in valve body; Spool is arranged on valve seat; Sleeve is connected with valve seal; Spool upper end connects valve rod, and valve body upper end is provided with the valve gap for pressure valve core.Under High Pressure Difference operating mode, when using telescoping valve, often because pressure reduction is too high, bore is comparatively large, then the leakage rate of valve is comparatively large, and produces very large noise.
Model utility content
The shortcoming of prior art in view of the above, the purpose of this utility model is the modulating valve providing a kind of low leakage, low noise.
For achieving the above object and other relevant objects, the utility model provides a kind of modulating valve, at least comprises valve body, valve seat, valve rod, spool, and sleeve; Described valve seat is provided with in described valve body; Described spool is arranged on described valve seat; Described sleeve is connected with described valve seal; Described spool upper end connects described valve rod, and described valve body upper end is provided with the valve gap for pressing described spool; Described spool comprises big valve core and small valve core, described big valve core is arranged on described valve seat, described jacket casing is located on described big valve core, described small valve core lower end is arranged with spring, described spring one end is against on described small valve core, and its other end is against on described big valve core, described small valve core upper end connects described valve rod; Described valve gap is set on described valve rod, and it is positioned at above described small valve core; Described valve gap upper end is provided with a support, and described cradle top surface has been bolted many springs pneumatic diaphragn actuating mechanism; The push rod of described many springs pneumatic diaphragn actuating mechanism is positioned on described valve rod end face; Described support upper wall is set on described push rod, and described support lower wall is set on described valve rod; The barrel lower end of described sleeve offers multiple through hole.
Preferably, described valve gap outer wall upper end has a step surface, and described support bottom surface is against on described step surface, and described support upper wall is connected with described many springs pneumatic diaphragn actuating mechanism outer wall by bolt.
Preferably, described support upper wall is provided with secondary round platform, and in described secondary round platform, large footpath round platform is connected with described support; Described secondary round platform offers axis hole, and described axis hole and described push rod coaxial, described many springs pneumatic diaphragn actuating mechanism lower wall offers circular hole, and described circular hole and described secondary round platform small diameter round platform are sealed and matched, and are provided with Sealing between described axis hole and described push rod.As mentioned above, modulating valve of the present utility model, has following beneficial effect:
Because described small valve core lower end is arranged with spring, described spring one end is against on described small valve core, and its other end is against on described big valve core, and described small valve core upper end connects described valve rod; Described valve gap upper end is connected with described many springs pneumatic diaphragn actuating mechanism by a support simultaneously, and the push rod of described many springs pneumatic diaphragn actuating mechanism is positioned on described valve rod end face; When the valve is closed, valve inlet pressure acts on described big valve core, pressure is larger, the downward sealing force of described big valve core is larger, and leakage rate is lower, when the valve is open, described small valve core is first started by described many springs pneumatic diaphragn actuating mechanism, lay down pressure, the inlet pressure of valve and outlet pressure are balanced and drives described big valve core by valve open again, therefore this modulating valve can realize low leakage.In addition, the barrel lower end of described sleeve offers multiple through hole, greatly reduces noise.
Accompanying drawing explanation
Fig. 1 is shown as modulating valve schematic diagram of the present utility model, does not wherein install many springs pneumatic diaphragn actuating mechanism.
Fig. 2 is shown as modulating valve schematic diagram of the present utility model.
Element numbers explanation
1 valve body 2 valve seat
3 valve rod 4 spools
5 sleeve 41 big valve cores
51 through hole 42 small valve cores
6 valve gap 7 springs
8 supports spring more than 9 pneumatic diaphragn actuating mechanism
81 secondary round platform 91 push rods
82 strokes mark 10 Sealings
Embodiment
By particular specific embodiment, mode of execution of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 2.Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop in scope that technology contents that the utility model discloses can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
Fig. 1 and Fig. 2 shows a kind of modulating valve of the present utility model, wherein in Fig. 1 and Fig. 2 large arrow represent MEDIA FLOW to.Modulating valve at least comprises valve body 1, valve seat 2, valve rod 3, spool 4, and sleeve 5; Described valve seat 2 is provided with in described valve body 1; Described spool 4 is arranged on described valve seat 2; Described sleeve 5 is set on described spool 4, and is tightly connected with described valve body 1; Described spool 4 upper end connects described valve rod 3, and described valve body 1 upper end is provided with the valve gap 6 for pressing described spool 4.
Described spool 4 comprises big valve core 41 and small valve core 42, described big valve core 41 is arranged on described valve seat 2, described sleeve 5 is set on described big valve core 41, described small valve core 42 lower end is arranged with spring 7, described spring 7 one end is against on described small valve core 42, and its other end is against on described big valve core 41, described small valve core 42 upper end connects described valve rod 3, sees Fig. 1.
Described valve gap 6 is set on described valve rod 3, and it is positioned at above described small valve core 42; Described valve gap 6 upper end is provided with a support 8, and described support 8 end face has been bolted many springs pneumatic diaphragn actuating mechanism 9, sees Fig. 1 and Fig. 2.
The push rod 91 of described many springs pneumatic diaphragn actuating mechanism 9 is positioned on described valve rod 3 end face; Described support 8 upper wall is set on described push rod 91, and described support 8 lower wall is set on described valve rod 3; The barrel lower end of described sleeve 5 offers multiple through hole 51, sees Fig. 1 and Fig. 2.
Conveniently install, described valve gap 6 outer wall upper end has a step surface, and described support 8 bottom surface is against on described step surface, and described support 8 upper wall is connected with described many springs pneumatic diaphragn actuating mechanism 9 outer wall by bolt, sees Fig. 2.
In addition, conveniently install, described support 8 upper wall is provided with secondary round platform 81, and in described secondary round platform 81, large footpath round platform is connected with described support 8; Described secondary round platform 81 offers axis hole, and described axis hole and described push rod 91 coaxial, described many springs pneumatic diaphragn actuating mechanism 9 lower wall offers circular hole, and described circular hole and described secondary round platform 81 small diameter round platform are sealed and matched, be provided with Sealing 10 between described axis hole and described push rod 91, see Fig. 2.
In addition, conveniently read push rod 91 stroke, be provided with stroke mark 82 in described support 8 side, see Fig. 2.
With reference to figure 1 and Fig. 2, when the valve is closed, valve inlet pressure acts on described big valve core 41, and pressure is larger, the downward sealing force of described big valve core 41 is larger, leakage rate is lower, when the valve is open, by described many springs pneumatic diaphragn actuating mechanism 9, and spring 7 first starts described small valve core 42, lay down pressure, the inlet pressure of valve and outlet pressure are balanced and drives described big valve core 41 by valve open again, therefore this modulating valve can realize low leakage.In addition, the barrel lower end of described sleeve 5 offers multiple through hole 51, greatly reduces noise.
In sum, modulating valve of the present utility model not only leakage rate is low, and noise is low.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, have in all art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (3)
1. a modulating valve, at least comprises valve body (1), valve seat (2), valve rod (3), spool (4), and sleeve (5), described valve seat (2) is provided with in described valve body (1), described spool (4) is arranged on described valve seat (2), described sleeve (5) and described valve body (1) are tightly connected, described spool (4) upper end connects described valve rod (3), described valve body (1) upper end is provided with the valve gap (6) for pressing described spool (4), it is characterized in that, described spool (4) comprises big valve core (41) and small valve core (42), described big valve core (41) is arranged on described valve seat (2), described sleeve (5) is set on described big valve core (41), described small valve core (42) lower end is arranged with spring (7), described spring (7) one end is against on described small valve core (42), and its other end is against on described big valve core (41), described small valve core (42) upper end connects described valve rod (3), described valve gap (6) is set on described valve rod (3), and it is positioned at above described small valve core (42), described valve gap (6) upper end is provided with a support (8), and described support (8) end face has been bolted many springs pneumatic diaphragn actuating mechanism (9), the push rod (91) of described many springs pneumatic diaphragn actuating mechanism (9) is positioned on described valve rod (3) end face, described support (8) upper wall is set on described push rod (91), and described support (8) lower wall is set on described valve rod (3), the barrel lower end of described sleeve (5) offers multiple through hole (51).
2. modulating valve according to claim 1, it is characterized in that: described valve gap (6) outer wall upper end has a step surface, described support (8) bottom surface is against on described step surface, and described support (8) upper wall is connected with described many springs pneumatic diaphragn actuating mechanism (9) outer wall by bolt.
3. modulating valve according to claim 1 and 2, is characterized in that: described support (8) upper wall is provided with secondary round platform (81), and in described secondary round platform (81), large footpath round platform is connected with described support (8); Described secondary round platform (81) offers axis hole, and described axis hole and described push rod (91) coaxial, described many springs pneumatic diaphragn actuating mechanism (9) lower wall offers circular hole, and described circular hole and described secondary round platform (81) small diameter round platform are sealed and matched, and are provided with Sealing (10) between described axis hole and described push rod (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871098.3U CN204403426U (en) | 2014-12-31 | 2014-12-31 | Modulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871098.3U CN204403426U (en) | 2014-12-31 | 2014-12-31 | Modulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403426U true CN204403426U (en) | 2015-06-17 |
Family
ID=53427286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871098.3U Expired - Fee Related CN204403426U (en) | 2014-12-31 | 2014-12-31 | Modulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403426U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351583A (en) * | 2015-12-01 | 2016-02-24 | 杭州杭氧工装泵阀有限公司 | Pilot balance type cage-type control valve clack structure |
| CN105443821A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Low-noise pressure regulating valve |
| CN111810653A (en) * | 2019-04-12 | 2020-10-23 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
-
2014
- 2014-12-31 CN CN201420871098.3U patent/CN204403426U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351583A (en) * | 2015-12-01 | 2016-02-24 | 杭州杭氧工装泵阀有限公司 | Pilot balance type cage-type control valve clack structure |
| CN105443821A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Low-noise pressure regulating valve |
| CN111810653A (en) * | 2019-04-12 | 2020-10-23 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN111810653B (en) * | 2019-04-12 | 2022-10-04 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150617 Termination date: 20181231 |