CN203979533U - A kind of throttle non-return valve - Google Patents
A kind of throttle non-return valve Download PDFInfo
- Publication number
- CN203979533U CN203979533U CN201420410562.9U CN201420410562U CN203979533U CN 203979533 U CN203979533 U CN 203979533U CN 201420410562 U CN201420410562 U CN 201420410562U CN 203979533 U CN203979533 U CN 203979533U
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- China
- Prior art keywords
- valve
- spool
- coaxially
- flap
- valve body
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Abstract
The utility model relates to a kind of throttle non-return valve, comprise valve body, valve gap, valve rod, manual actuator, cartridge cover, spool, valve seat and valve pocket, valve body upper end is coaxially fixedly mounted with valve gap, valve rod upper end is stretched out valve gap upper end and is radially fixedly mounted with manual actuator, valve rod lower end is passed valve gap and is coaxially connected with the spool in valve body, the interior coaxial cooperation of valve body corresponding to this spool bottom outer rim is provided with valve seat, valve pocket and valve seat are coaxially fixedly mounted with in valve body chamber, one axial non-return mechanism is coaxially housed in spool chamber, this non-return mechanism comprises flap and spring, spool is cylinder barrel shaped structure, in valve core inside lower end, be coaxially installed with a flap, this flap and spool inner wall sealing are slidably matched, mounting spring between this flap and cartridge cover.The utility model is simple in structure, reasonable in design, easy for installation, reduces space cost, reduces maintenance cost and consumables cost, regulates cut-off flow and check function to carry out simultaneously, effectively control valve outlet rate-of flow.
Description
Technical field
The utility model belongs to valve field, relates to throttle valve, especially a kind of throttle non-return valve.
Background technique
At present, one-way throttle function on pipeline adopts the mode that a throttle valve and safety check are installed in series to meet conventionally, and this structure can not realize throttling and check function simultaneously.And also there is following problem in existing throttle valve: (1) needs larger installing space; (2) can not realize throttling and check function simultaneously, affect Flow-rate adjustment; (3) maintenance cost and consumables cost are high.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of simple in structure, reasonable in design, easy for installation, throttle non-return valve that can simultaneously regulate cut-off flow and check function is provided.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of throttle non-return valve, comprise valve body, valve gap, valve rod, manual actuator, cartridge cover, spool, valve seat and valve pocket, valve body upper end is coaxially fixedly mounted with valve gap, valve gap middle part coaxially installs valve rod, valve rod upper end is stretched out valve gap upper end and is radially fixedly mounted with manual actuator, valve rod lower end is coaxially connected through valve gap and by the cartridge cover that is coaxially fixedly mounted with and the spool in valve body, the interior coaxial cooperation of valve body corresponding to this spool bottom outer rim is provided with valve seat, valve pocket and valve seat are coaxially fixedly mounted with in valve body chamber, it is characterized in that: an axial non-return mechanism is coaxially housed in spool chamber, this non-return mechanism comprises flap and spring, spool is cylinder barrel shaped structure, in valve core inside lower end, be coaxially installed with a flap, this flap and spool inner wall sealing are slidably matched, mounting spring between this flap and cartridge cover.
And a described valve body radially side is shaped with pressure compensation opening, this pressure compensation opening is communicated with medium entrance point and body cavity.
Advantage of the present utility model and good effect are:
The utility model is simple in structure, reasonable in design, easy for installation, reduces space cost, reduces maintenance cost and consumables cost, regulates cut-off flow and check function to carry out simultaneously, effectively control valve outlet rate-of flow.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark representative in accompanying drawing: 1 valve gap, 2 valve bodies, 3 valve pockets, 4 spools, 5 pressure compensation openings, 6 valve seats, 7 manual actuators, 8 valve rods, 9 cartridge cover, 10 springs, 11 non-return flaps.
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of throttle non-return valve, comprise valve body 2, valve gap 1, valve rod 8, manual actuator 7, cartridge cover 9, spool 4, valve seat 6 and valve pocket 3, valve body upper end is coaxially fixedly mounted with valve gap, valve gap middle part coaxially installs valve rod, valve rod upper end is stretched out valve gap upper end and is radially fixedly mounted with manual actuator, valve rod lower end is coaxially connected through valve gap and by the cartridge cover that is coaxially fixedly mounted with and the spool in valve body, the interior coaxial cooperation of valve body corresponding to this spool bottom outer rim is provided with valve seat 6, and valve seat coordinates the open and close of control valve body with seal spool; Valve pocket and valve seat are coaxially fixedly mounted with in valve body chamber.
The direction shown in accompanying drawing of take describes as example, and valve body lower end is coaxially shaped with medium entrance point, and valve body middle part right radial is shaped with media outlet end.
Innovative point of the present utility model is:
One axial non-return mechanism is coaxially housed in spool chamber, this non-return mechanism comprises flap 11 and spring 10, the spool of the present embodiment is cylinder barrel shaped structure, in valve core inside lower end, be coaxially installed with a flap, this flap and spool inner wall sealing are slidably matched, elasticity linking springs 10 between this flap and cartridge cover, this spring provides pretightening force, the airtight spool of flap during without pressure.
A valve body radially side is shaped with pressure compensation opening 5, and this pressure compensation opening is communicated with medium entrance point and body cavity, thereby elimination medium entrance point and valve body cavity pressure are poor, and switch is light.
The working principle of this throttle valve is:
When valve is during in full-gear, medium is entered by the medium inlet of lower end, by medium self opened by pressure safety check, pushes flap open and enters in spool chamber, through spool bore and valve pocket hole, from the media outlet of valve body right-hand member, flows out.
When needs adjust flux, can move down by controlling manual actuator actuate valve stem band movable valve plug, the common factor hole in spool bore and valve pocket hole can reduce thereupon, and the rate-of flow by common factor hole also can be more and more less, thereby reach adjust flux object.
When the pressure anomaly rising of decompression or media outlet occurs in medium inlet, can there is backflow phenomenon in medium.Now, spring can promote flap and contact formation non-return mechanism with spool, prevents medium back flow, reaches protection equipment object.
Claims (2)
1. a throttle non-return valve, comprise valve body, valve gap, valve rod, manual actuator, cartridge cover, spool, valve seat and valve pocket, valve body upper end is coaxially fixedly mounted with valve gap, valve gap middle part coaxially installs valve rod, valve rod upper end is stretched out valve gap upper end and is radially fixedly mounted with manual actuator, valve rod lower end is coaxially connected through valve gap and by the cartridge cover that is coaxially fixedly mounted with and the spool in valve body, the interior coaxial cooperation of valve body corresponding to this spool bottom outer rim is provided with valve seat, valve pocket and valve seat are coaxially fixedly mounted with in valve body chamber, it is characterized in that: an axial non-return mechanism is coaxially housed in spool chamber, this non-return mechanism comprises flap and spring, spool is cylinder barrel shaped structure, in valve core inside lower end, be coaxially installed with a flap, this flap and spool inner wall sealing are slidably matched, mounting spring between this flap and cartridge cover.
2. throttle non-return valve according to claim 1, is characterized in that: a described valve body radially side is shaped with pressure compensation opening, and this pressure compensation opening is communicated with medium entrance point and body cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410562.9U CN203979533U (en) | 2014-07-23 | 2014-07-23 | A kind of throttle non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410562.9U CN203979533U (en) | 2014-07-23 | 2014-07-23 | A kind of throttle non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979533U true CN203979533U (en) | 2014-12-03 |
Family
ID=51976978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420410562.9U Active CN203979533U (en) | 2014-07-23 | 2014-07-23 | A kind of throttle non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237535A (en) * | 2020-03-26 | 2020-06-05 | 一重集团大连工程技术有限公司 | Multifunctional one-way valve capable of being opened and closed actively and function adjusting method thereof |
| CN112996987A (en) * | 2018-08-23 | 2021-06-18 | 沃尔沃卡车集团 | Cylinder valve assembly with valve spring breather |
-
2014
- 2014-07-23 CN CN201420410562.9U patent/CN203979533U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996987A (en) * | 2018-08-23 | 2021-06-18 | 沃尔沃卡车集团 | Cylinder valve assembly with valve spring breather |
| CN112996987B (en) * | 2018-08-23 | 2022-12-27 | 沃尔沃卡车集团 | Cylinder valve assembly with valve spring breather |
| US11619148B2 (en) | 2018-08-23 | 2023-04-04 | Volvo Truck Corporation | Cylinder valve assembly with valve spring venting arrangement |
| CN111237535A (en) * | 2020-03-26 | 2020-06-05 | 一重集团大连工程技术有限公司 | Multifunctional one-way valve capable of being opened and closed actively and function adjusting method thereof |
| CN111237535B (en) * | 2020-03-26 | 2023-08-01 | 一重集团大连工程技术有限公司 | Multifunctional one-way valve capable of being actively opened and closed and function adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |