CN206093141U - Electronic expansion valve valve rod limit structure - Google Patents
Electronic expansion valve valve rod limit structure Download PDFInfo
- Publication number
- CN206093141U CN206093141U CN201621028769.5U CN201621028769U CN206093141U CN 206093141 U CN206093141 U CN 206093141U CN 201621028769 U CN201621028769 U CN 201621028769U CN 206093141 U CN206093141 U CN 206093141U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- hole
- stop collar
- nut sleeve
- 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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- Lift Valve (AREA)
Abstract
Electronic expansion valve valve rod limit structure, which belongs to the field of valves, set up the valve rod in electronic expansion valve's the valve body, valve rod seat and valve rod driving mechanism, valve rod driving mechanism includes magnet steel cover and the nut cover of fixing with the magnet steel cover, valve rod seat upper segment portion sets up the stepped through hole of a big footpath and path, nut cover cartridge is in the through -hole of valve rod seat big footpath, nut cover surface sets up the external screw thread, set up the internal thread that closes with the outer thread to match of nut cover on the valve rod seat stepped through hole internal surface, nut cover and the installation of valve rod seat screw -thread fit, the nut put in offer support axially extending bore that the valve rod moved and valve rod seat on the path through -hole corresponding, axially extending bore and valve rod seat path through -hole are worn to the valve rod, the valve rod front end corresponds a valve opening, the valve rod rear end sets up the stop collar, suit tip behind the valve rod is fixed to the stop collar, removal on the restriction valve rod axis direction, the outer surface set spring of stop collar. The utility model provides a restriction valve rod axial motion, the simple electronic expansion valve valve rod limit structure of manufacturing.
Description
Technical field
This utility model belongs to valve field, especially relevant with electric expansion valve stem movement position limiting structure.
Background technology
Electric expansion valve is a kind of for controlling refrigerant flow throttle valve in refrigeration system.The valve body of electric expansion valve
Fix including the valve casing with inner chamber and valve seat docking, body cavity is arranged by valve rod, nut sleeve, valve rod base, nut sleeve axial direction
Motion, band ovable valve stem is moved up and down, and valve rod requires to rotate together in movement, needs valve rod to lead to nut sleeve center
Gap coordinates between hole, and valve rod is relative to nut sleeve axial limiting.
Utility model content
The purpose of this utility model aims to solve the problem that prior art problem, there is provided one kind limits valve rod axially-movable, manufacture letter
Single electric expansion valve stem movement position limiting structure.
For this purpose, this utility model is employed the following technical solutions：Electric expansion valve stem movement position limiting structure, electric expansion valve
Valve body in valve rod, valve rod base and valve rod drive mechanism be set, valve rod drive mechanism includes magnetic steel sleeve and fixes with magnetic steel sleeve
Nut sleeve, valve rod base epimere portion opens up the step through-hole of a big footpath and path, and nut sleeve is plugged in the big footpath through hole of valve rod base,
Nut sleeve outer surface arranges external screw thread, arranges on valve rod base step through-hole inner surface in being engaged with the nut sleeve external screw thread
Screw thread, nut sleeve and valve rod base screw thread coordinate to be installed, and is opened up in nut sleeve on the axially extending bore and valve rod base that support valve rod movement
Path through hole is corresponding, and the valve rod is through at axially extending bore and valve rod base path through hole, valve rod front end one valve opening of correspondence, by valve
Moving up and down for bar controls the sealing of valve opening and opens, and it is characterized in that, the valve rod rear end arranges stop collar, on the stop collar
Through hole is opened up, the through hole fixed cover is loaded on valve rod rear end portion, stop collar lower surface is fixed with nut sleeve upper surface, limit stem shaft
Movement on line direction, stop collar outer surface pocketed springs, spring one end is resisted against body cavity bottom surface, and the other end is resisted against
Nut sleeve rearward end.
Used as the supplement to above-mentioned technical proposal and perfect, this utility model also includes following technical characteristics.
The stop collar can be copper sheathing, and copper sheathing is fitted close with valve rod.
The stop collar can be stainless steel sleeve, and stainless steel sleeve is welded and fixed with valve rod rear end portion.
This utility model can reach following beneficial effect：Valve rod rear end is set with stop collar, and by stop collar valve rod is limited
The motion of axis direction, simple structure is easily manufactured.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1 valve rod 7, valve rod base 6 and valve rod driving machine are set in the valve body 4 of this utility model electric expansion valve
Structure, the nut sleeve 3 that valve rod drive mechanism includes magnetic steel sleeve 5 and fixes with magnetic steel sleeve 5, the epimere portion of valve rod base 6 opens up a big footpath
With the step through-hole of path, nut sleeve 3 is plugged in the big footpath through hole of valve rod base 6, and the outer surface of nut sleeve 3 arranges external screw thread, valve rod
The female thread being engaged with the external screw thread of the nut sleeve 3, nut sleeve 3 and the screw thread of valve rod base 6 are set on 6 step through-hole inner surfacies of seat
Coordinate and install, open up in nut sleeve 3 and support the axially extending bore of the movement of valve rod 7 corresponding with path through hole on valve rod base 6, the valve
Bar 7 is through at axially extending bore and the path through hole of valve rod base 6, and the front end of valve rod 7 one valve opening of correspondence moves up and down control by valve rod 7
The sealing of valve opening with open, the rear end of the valve rod 7 arrange stop collar 2, the fixed cover of stop collar 2 be loaded on the rearward end of valve rod 7, limit valve
Movement on the axis direction of bar 7, the outer surface pocketed springs 1 of stop collar 2, one end of spring 1 is resisted against the inner chamber bottom surface of valve body 4, separately
One end is resisted against the rearward end of nut sleeve 3.
Claims (3)
1. electric expansion valve stem movement position limiting structure, it is characterised in that：Valve rod, valve rod base are set in the valve body of electric expansion valve
The nut sleeve for including magnetic steel sleeve and fixing with magnetic steel sleeve with valve rod drive mechanism, valve rod drive mechanism, valve rod base epimere portion opens up
One big footpath and the step through-hole of path, nut sleeve is plugged in the big footpath through hole of valve rod base, and nut sleeve outer surface arranges external screw thread,
The female thread being engaged with the nut sleeve external screw thread, nut sleeve and valve rod base screw thread are set on valve rod base step through-hole inner surface
Coordinate and install, open up in nut sleeve and support the axially extending bore of valve rod movement corresponding with path through hole on valve rod base, the valve rod
Axially extending bore and valve rod base path through hole are through at, valve rod front end one valve opening of correspondence controls valve opening by moving up and down for valve rod
Seal and open, the valve rod rear end arranges stop collar, stop collar fixed cover is loaded on valve rod rear end portion, limits valve rod axis direction
On movement, stop collar outer surface pocketed springs, the spring one end is resisted against body cavity bottom surface, and the other end is resisted against nut sleeve
Rearward end.
2. electric expansion valve stem movement position limiting structure according to claim 1, it is characterised in that：Described stop collar is copper
Set, copper sheathing is fitted close with valve rod.
3. electric expansion valve stem movement position limiting structure according to claim 1, it is characterised in that：Described stop collar is not for
Rust steel bushing, stainless steel sleeve is welded and fixed with valve rod rear end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028769.5U CN206093141U (en) | 2016-08-31 | 2016-08-31 | Electronic expansion valve valve rod limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028769.5U CN206093141U (en) | 2016-08-31 | 2016-08-31 | Electronic expansion valve valve rod limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206093141U true CN206093141U (en) | 2017-04-12 |
Family
ID=58475679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621028769.5U Expired - Fee Related CN206093141U (en) | 2016-08-31 | 2016-08-31 | Electronic expansion valve valve rod limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206093141U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205746A1 (en) * | 2017-05-09 | 2018-11-15 | 浙江三花汽车零部件有限公司 | Electronic expansion valve, thermal management assembly, cooling system, and method for manufacturing electronic expansion valve |
| CN108869830A (en) * | 2017-05-09 | 2018-11-23 | 浙江三花汽车零部件有限公司 | Electric expansion valve, thermal management assemblies, cooling system and electronic expansion valve manufacturing method |
-
2016
- 2016-08-31 CN CN201621028769.5U patent/CN206093141U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205746A1 (en) * | 2017-05-09 | 2018-11-15 | 浙江三花汽车零部件有限公司 | Electronic expansion valve, thermal management assembly, cooling system, and method for manufacturing electronic expansion valve |
| CN108869830A (en) * | 2017-05-09 | 2018-11-23 | 浙江三花汽车零部件有限公司 | Electric expansion valve, thermal management assemblies, cooling system and electronic expansion valve manufacturing method |
| US11698146B2 (en) | 2017-05-09 | 2023-07-11 | Zhejiang Sanhua Automotive Components Co., Ltd. | Electronic expansion valve, thermal management assembly, cooling system, and method for manufacturing electronic expansion valve |
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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: 20170412 Termination date: 20170831 |