CN209540050U - A kind of high stability electromagnetic expanding valve - Google Patents
A kind of high stability electromagnetic expanding valve Download PDFInfo
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- CN209540050U CN209540050U CN201920008359.1U CN201920008359U CN209540050U CN 209540050 U CN209540050 U CN 209540050U CN 201920008359 U CN201920008359 U CN 201920008359U CN 209540050 U CN209540050 U CN 209540050U
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- valve
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- screw rod
- high stability
- valve body
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Abstract
The utility model provides a kind of high stability electromagnetic expanding valve, including power head assembly, bonnet, through-hole, core assembly, lower flat shim, bottom flange, entrance, outlet, upper flat shim and lower valve body, the setting of the secondary resistance valve system of the utility model, caused by effectively preventing valve rod from wearing because of long-time the phenomenon that micro- leakage, when valve rod is opened, plunger and push plate are jacked up by the elastic force of reset spring, are realized the phenomenon that secondary resistance valve system is opened, are guaranteed the normal work of expansion valve；The setting of top nut, lower nut and screw rod effectively avoids the length that is overlapped of screw rod and the guide section of lower nut from shortening and generate radial the phenomenon that shaking, is advantageously implemented high stability when expansion valve uses；The setting of valve body and secondary resistance valve system, prevents valve rod from occurring being closed transition in closing course, causes the phenomenon that breaking through spool, the service life of expansion valve is effectively guaranteed.
Description
Technical field
The utility model belongs to control valve technical field more particularly to a kind of high stability electromagnetic expanding valve.
Background technique
In recent years, the application of converter technique gradually gradually expands to refrigerator, washing machine, hot water from domestic air conditioning field
The fields such as device, important accessory of the electric expansion valve as converter technique, application range are also constantly expanding, and by
Gradually it is applied in automotive air-conditioning system.
China Patent Publication No. is CN102454797B, a kind of entitled electromagnetic expanding valve of innovation and creation, including valve body
(21), it is fixed on the helical guideway device (241) of the roof of valve body (21), is set to the servo-actuated portion of helical guideway device (241)
Part (242) and the magnet steel (27) being installed in valve body (21), the lower end of the track of helical guideway device (241) are provided with lower stop
Part further includes limit sleeve (31) and limited block (25), and limit sleeve (31) is fixedly connected with magnet steel (27), and limit sleeve is arranged on (31)
There are the pushing mechanism for pushing follow-up unit (242) orbital motion, the end of limited block (25) and helical guideway device (241)
Portion is fixedly connected, and is located in the inner cavity of limit sleeve (31), is cooperated with the inner sidewall of limit sleeve (31).But existing electricity
For magnetic expansion valve there is also opening to be formed to valve body and be defined using upper retainer and lower retainer, structure is unreliable, once
Glance off with card resistance phenomenon, will cause valve body failure, out of contior phenomenon, when full-gear, the guiding of screw rod and nut
The coincidence length of section shortens, it is easy to and it generates radial shaking and valve body use for a long time will cause spool wear phenomenon, so that
The problem of there is also micro- leakage when closing spool.
Therefore, a kind of high stability electromagnetic expanding valve is invented to be very necessary.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of high stability electromagnetic expanding valve, existing to solve
Electromagnetic expanding valve there is also opening to be formed to valve body and be defined using upper retainer and lower retainer, structure is unreliable,
Once glance off with card resistance phenomenon, will cause valve body failure, out of contior phenomenon, when full-gear, screw rod and nut
The coincidence length of guide section shortens, it is easy to and it generates radial shaking and valve body use for a long time will cause spool wear phenomenon,
So that the problem of there is also micro- leakage when closing spool.A kind of high stability electromagnetic expanding valve, including power head assembly, on
Valve deck, through-hole, core assembly, lower flat shim, bottom flange, entrance, outlet, upper flat shim and lower valve body, the power head assembly
It is inlaid in the top of bonnet,；The bonnet, and bottom flange are symmetrical arranged；The through-hole is provided with upper valve using multiple respectively
The two sides of lid and bottom flange；The core assembly is inlaid on bottom flange, and is cooperatively connected with power head assembly；The lower plain cushion
Piece is socketed in the outside of core assembly；It is described；The bottom flange is fixedly connected by locking nut with bonnet,；The entrance is opened
It is located at the side of lower valve body；It is described to export the bottom for being provided with lower valve body；The lower section of bonnet, is arranged in the upper flat shim；Institute
The lower section that lower valve body is socketed in bottom flange is stated, and is welded and fixed.
The core assembly includes valve shell, top nut, magnet steel, lower nut, valve rod, secondary resistance valve system and screw rod,
The top nut is welded on the top of valve shell, and axis is consistent with screw axis；The magnet steel is arranged in valve shell
Around portion, and welded with screw rod；The lower nut is connect with screw flight；The valve rod is welded on the bottom of screw rod；It is described
The inside of outlet is arranged in secondary resistance valve system.
The bottom of the valve rod is set as reversed round bench shaped, around offer seal groove, convenient for sealing ring be embedded in, have
Conducive to the sealing effect for guaranteeing valve body.
The secondary resistance valve system includes block, blow vent, reset spring, traveller, plunger and push plate, the block setting
To be discoid, around with lower valve body weld；The blow vent is provided with the middle position of block；The reset spring socket exists
On traveller；The traveller uses multiple, the surrounding for being welded on blow vent of even distribution type；The surrounding of the push plate offers installation
Hole is socketed on traveller, and is slidably connected with traveller.
The bottom end and bottom flange upper end of the bonnet, offer seal groove, are conducive to for sealing ring being embedded in, and pass through
Clamping screw compresses sealing ring and upper flat shim and lower flat shim, guarantees the sealing effect of equipment.
Compared with prior art, the utility model has the following beneficial effects:
1. the utility model it is secondary resistance valve system setting, when valve rod is in sealing state, secondary resistance valve system due to by
To the pushing of valve rod, so that reset spring is compressed, plunger blocks blow vent, effective to realize secondary seal and occlusion, has
Effect prevents valve rod because the phenomenon that micro- leakage, when valve rod is opened, plunger and push plate are by reset spring caused by wearing for a long time
Elastic force is jacked up, and is realized the phenomenon that secondary resistance valve system is opened, is guaranteed the normal work of expansion valve.
2. the setting of the top nut of the utility model, lower nut and screw rod, when opening valve rod, screw rod is moved upwards, spiral shell
It is directly accessed top nut at the top of bar, and screws and connect with it, effectively avoids screw rod and being overlapped for the guide section of lower nut long
Degree shortens and generates radial the phenomenon that shaking, and is advantageously implemented high stability when expansion valve uses.
3. the setting of the screw rod and valve rod of the utility model, valve rod are welded on the bottom of screw rod, effectively guarantee its rotation
When moving distance, be directly welded and fixed, avoid the occurrence of card resistance phenomenon, guarantee the control sensitivity of expansion valve when in use.
4. the setting of the valve body of the utility model and secondary resistance valve system, plunger blocks up blow vent when valve body
Firmly, so that valve rod is not had the space for continuing precession, prevent valve rod from occurring being closed transition in closing course, cause to break through spool
The service life of expansion valve is effectively guaranteed in phenomenon.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the core assembly structural schematic diagram of the utility model.
Fig. 3 is the valve rod bottom end structural schematic diagram of the utility model.
Fig. 4 is the secondary resistance valve system structural schematic diagram of the utility model.
In figure:
1- power head assembly, 2- bonnet, 3- through-hole, 4- core assembly, 41- valve shell, 42- top nut, 43- magnetic
Steel, 44- lower nut, 45- valve rod, bis- resistance valve systems of 46-, 461- block, 462- blow vent, 463- reset spring, 464- are sliding
Column, 465- plunger, 466- push plate, 47- screw rod, flat shim under 5-, 6- bottom flange, 7- entrance, the outlet 8-, the upper flat shim of 9-, 10-
Lower valve body.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
Embodiment:
As shown in attached drawing 1 to attached drawing 4
The utility model provides a kind of high stability electromagnetic expanding valve, including power head assembly 1, bonnet, 2, through-hole 3, valve
Core assembly 4, lower flat shim 5, bottom flange 6, entrance 7, outlet 8, upper flat shim 9 and lower valve body 10, the power head assembly 1 are embedded in
At the top of bonnet, 2；The bonnet, 2 is symmetrical arranged with bottom flange 6；The use of through-hole 3 is multiple, is provided with upper valve respectively
The two sides of lid 2 and bottom flange 6；The core assembly 4 is inlaid on bottom flange 6, and is cooperatively connected with power head assembly 1；It is described
Lower flat shim 5 is socketed in the outside of core assembly 4；It is described；The bottom flange 6 is fixedly connected by locking nut with bonnet, 2；
The entrance 7 is provided with the side of lower valve body 10；The outlet 8 is provided with the bottom of lower valve body 10；The upper flat shim 9 is arranged
In the lower section of bonnet, 2；The lower valve body 10 is socketed in the lower section of bottom flange 6, and is welded and fixed.
The core assembly 4 includes valve shell 41, top nut 42, magnet steel 43, lower nut 44, valve rod 45, secondary resistance valve
Mechanism 46 and screw rod 47, the top nut 42 are welded on the top of valve shell 41, and axis is consistent with 47 axis of screw rod；It is described
Around magnet steel 43 is arranged in inside valve shell 41, and welded with screw rod 47；The lower nut 44 is threadedly coupled with screw rod 47；
The valve rod 45 is welded on the bottom of screw rod 47；The inside of outlet 8 is arranged in the secondary resistance valve system 46.
The bottom of the valve rod 45 is set as reversed round bench shaped, around offer seal groove, convenient for sealing ring be embedded in,
Advantageously ensure that the sealing effect of valve body.
The secondary resistance valve system 46 includes block 461, blow vent 462, reset spring 463, traveller 464,465 He of plunger
Push plate 466, the block 461 are set as discoid, around with lower valve body 10 weld；The blow vent 462 is provided with block
461 middle position；The reset spring 463 is socketed on traveller 464；The traveller 464 uses multiple, the welding of even distribution type
In the surrounding of blow vent 462；The surrounding of the push plate 466 offers mounting hole, is socketed on traveller 464, and with traveller 464
It is slidably connected.
The bottom end and 6 upper end of bottom flange of the bonnet, 2 offer seal groove, are conducive to for sealing ring being embedded in, and lead to
It crosses clamping screw to compress sealing ring and upper flat shim 9 and lower flat shim 5, guarantees the sealing effect of equipment.
Working principle
In the utility model, in use, magnet steel 43 rotates under the action of stepper motor, the spiral shell being firmly connected with it is driven
Bar 47 rotates, and since screw rod 47 and lower nut 44 are threadedly engaged, screw rod 47 converts rotary motion under the action of thread mechanism
For linear motion, changing the axial position of screw rod 47, screw rod 47 lifts valve rod 45, so that entrance 7 is connected to outlet 8, it is secondary
Push plate 466 in resistance valve system 46 is jacked up under the elastic force effect of reset spring 463, and plunger 465 is driven to be detached from blow vent,
So that entrance 7 and outlet 8 are in unimpeded state, when needing to be all turned on valve rod 45, screw rod 47 is moved upwards, the top of screw rod 47
It is directly accessed top nut 42, and screws and connect with it, effectively avoid screw rod 47 and the guide section of lower nut 44 is overlapped length
It shortens and generates radial the phenomenon that shaking, be advantageously implemented high stability when expansion valve uses, column when valve body
Plug 465 blocks blow vent 462, so that valve rod 45 is not had the space for continuing precession, prevents valve rod 45 from occurring in closing course
It is closed transition, is caused the phenomenon that breaking through spool, secondary resistance valve system 46 is due to the lower pressure by valve rod 45, so that reset spring
463 is compressed, and plunger 465 blocks blow vent 462, effective to realize secondary seal and occlusion, prevents valve rod 45 because for a long time
Caused by abrasion the phenomenon that micro- leakage, when valve rod 45 is opened, plunger 465 and push plate 466 are pushed up by the elastic force of reset spring 463
It rises, realizes the phenomenon that secondary resistance valve system 46 is opened, guarantee the normal work of expansion valve.
The opening in technical solutions of the utility model using technical solution described in the utility model or those skilled in the art
It gives, designs similar technical solution, and reach above-mentioned technical effect, be to fall into the protection scope of the utility model.
Claims (5)
1. a kind of high stability electromagnetic expanding valve, it is characterised in that: including power head assembly (1), bonnet, (2), through-hole (3),
Core assembly (4), lower flat shim (5), bottom flange (6), entrance (7) export (8), upper flat shim (9) and lower valve body (10), institute
State the top that power head assembly (1) is inlaid in bonnet, (2)；The bonnet, (2) and bottom flange (6) are symmetrical arranged；It is described logical
Hole (3) use is multiple, is provided with the two sides of bonnet, (2) and bottom flange (6) respectively；The core assembly (4) is inlaid in lower valve
It covers on (6), and is cooperatively connected with power head assembly (1)；The lower flat shim (5) is socketed in the outside of core assembly (4)；It is described
Bottom flange (6) is fixedly connected by locking nut with bonnet, (2)；The entrance (7) is provided with the side of lower valve body (10)；Institute
State the bottom that outlet (8) is provided with lower valve body (10)；Lower section of upper flat shim (9) setting in bonnet, (2)；The lower valve
Body (10) is socketed in the lower section of bottom flange (6), and is welded and fixed.
2. high stability electromagnetic expanding valve as described in claim 1, it is characterised in that: the core assembly (4) includes valve body
Shell (41), top nut (42), magnet steel (43), lower nut (44), valve rod (45), secondary resistance valve system (46) and screw rod (47),
The top nut (42) is welded on the top of valve shell (41), and axis is consistent with screw rod (47) axis；The magnet steel (43)
Setting is welded around valve shell (41) is internal, and with screw rod (47)；The lower nut (44) and screw rod (47) screw thread connect
It connects；The valve rod (45) is welded on the bottom of screw rod (47)；Inside of secondary resistance valve system (46) setting in outlet (8).
3. high stability electromagnetic expanding valve as claimed in claim 2, it is characterised in that: the bottom of the valve rod (45) is set as
Reversed round bench shaped, around offer seal groove.
4. high stability electromagnetic expanding valve as claimed in claim 2, it is characterised in that: the secondary resistance valve system (46) includes
Block (461), blow vent (462), reset spring (463), traveller (464), plunger (465) and push plate (466), the block
(461) be set as discoid, around with lower valve body (10) weld；The blow vent (462) is provided with the centre of block (461)
Position；The reset spring (463) is socketed on traveller (464)；Traveller (464) use is multiple, and even distribution type is welded on
The surrounding of blow vent (462)；The surrounding of the push plate (466) offers mounting hole, is socketed on traveller (464), and with cunning
Column (464) is slidably connected.
5. high stability electromagnetic expanding valve as described in claim 1, it is characterised in that: the bottom end of the bonnet, (2) is under
Valve deck (6) upper end offers seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920008359.1U CN209540050U (en) | 2019-01-03 | 2019-01-03 | A kind of high stability electromagnetic expanding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920008359.1U CN209540050U (en) | 2019-01-03 | 2019-01-03 | A kind of high stability electromagnetic expanding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209540050U true CN209540050U (en) | 2019-10-25 |
Family
ID=68268349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920008359.1U Active CN209540050U (en) | 2019-01-03 | 2019-01-03 | A kind of high stability electromagnetic expanding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209540050U (en) |
-
2019
- 2019-01-03 CN CN201920008359.1U patent/CN209540050U/en active Active
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