CN205784054U - A kind of expansion valve - Google Patents
A kind of expansion valve Download PDFInfo
- Publication number
- CN205784054U CN205784054U CN201620575045.6U CN201620575045U CN205784054U CN 205784054 U CN205784054 U CN 205784054U CN 201620575045 U CN201620575045 U CN 201620575045U CN 205784054 U CN205784054 U CN 205784054U
- Authority
- CN
- China
- Prior art keywords
- silk braid
- locating snap
- snap ring
- screw mandrel
- nut
- 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.)
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Abstract
The utility model discloses a kind of expansion valve, it includes screw mandrel, screw mandrel is assemblied on the internal thread of silk braid nut, screw mandrel lower end is connected with needle, needle is contained on valve port, described screw mandrel upper end is connected with rotor dummy slider, described valve port upper end is cased with silk braid nut, baffle ring is sleeved on the upper end of the outer wall of silk braid nut, the top of silk braid nut is equipped with locating snap ring, it is connected by axle between rotor with screw mandrel, the external screw thread rotated for baffle ring it is provided with on the outer wall of silk braid nut, there is the groove matched with locating snap ring outer ring surface silk braid nut upper end, the inner ring surface of locating snap ring is provided with projection, stopping projection is had to arrange with the backrest that throws one's back out of inner ring surface on locating snap ring outer ring surface.The technical program product structure is simple and reliable, it is possible to reduce product cost, reduces difficulty of processing, saves the output time.
Description
Technical field
This utility model relates to a kind of expansion valve, it is adaptable to refrigeration, air-conditioning and art of heat pumps, it is achieved refrigerant flow from
Dynamic regulation.
Background technology
Existing expansion valve is put for the temperature-sensitive mechanism built of kind of refrigeration cycle, to reduce noise, reaches fast-refrigerating or heats,
Locating snap ring on existing expansion valve is when motor works, and rotor rotates with baffle ring, during stopping, due to the effect stop of inertia
Ring can not shut down at once, is easily generated collision, the long service life causing locating snap ring, locating snap ring and silk braid nut in addition
Being to use intermetallic composite coating, manufacture molding is difficult, operation is many, scale error is big, therefore qualification rate is low, and in use noise is big, becomes
This height.
Summary of the invention
Task of the present utility model is to propose one to reduce product cost, improves the one producing qualification rate, reducing noise
Expansion valve.
Task of the present utility model is done in such a way that it includes that screw mandrel, screw mandrel are assemblied on the internal thread of silk braid nut,
Screw mandrel lower end is connected with needle, and needle is contained on valve port, and described screw mandrel upper end is connected with rotor dummy slider, and described valve port upper end is cased with silk braid
Nut, baffle ring is sleeved on the upper end of the outer wall of silk braid nut, and the top of silk braid nut is equipped with locating snap ring, between rotor and screw mandrel
Connected by axle, the outer wall of silk braid nut be provided with the external screw thread rotated for baffle ring, it is characterised in that: silk braid nut upper end
Having the groove matched with locating snap ring outer ring surface, the inner ring surface of locating snap ring is provided with projection, and locating snap ring outer ring surface has stop convex
Block is arranged with the backrest that throws one's back out of inner ring surface.The shape of silk braid nut upper end is the internal ring shape according to locating snap ring and designs, silk
The material selection plastic production of set nut.Described locating snap ring uses injection mo(u)lding.Outside silk braid nut lower end lower protruding block is with locating snap ring
It it is the stroke of baffle ring between anchor ring stopping projection.
This utility model has the effect that the technical program product structure is simple and reliable, it is possible to reduces product cost, subtracts
Few difficulty of processing, saves the output time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；Fig. 2 is silk braid nut installation diagram；Fig. 3 is prior art baffle ring
Structural representation；Fig. 4 is this utility model baffle ring structural representation；Fig. 5 is the structural representation that baffle ring runs to top dead centre
Figure；Fig. 6 is the structural representation that baffle ring runs to lower dead center.
Drawing explanation 1, valve bonnet, 2, rotor dummy slider, 3, rotor, 4, silk braid nut, 5, valve seat, 6, needle, 7, baffle ring, 8,
Locating snap ring, 9, screw mandrel, 10, protruding, 11, stopping projection, 12, lower protruding block, 13, top dead centre, 14, lower dead center.
Detailed description of the invention
Embodiment is described in detail in conjunction with the figures above, as it is shown in figure 1, screw mandrel 9 is assemblied on the internal thread of silk braid nut 4,
Screw mandrel lower end is connected with needle 6, and needle is contained on valve port, and described screw mandrel upper end is connected with rotor dummy slider 2, and described valve port upper end is cased with silk
Set nut 4, baffle ring 7 is sleeved on the upper end of the outer wall of silk braid nut, and the top of silk braid nut is equipped with locating snap ring 8, rotor and silk
Connected by axle between bar 9, valve seat 5 is covered with valve bonnet 1.
Described silk braid nut as in figure 2 it is shown, silk braid nut outer wall on be provided with for baffle ring rotate external screw thread, silk braid
There is the groove matched with locating snap ring outer ring surface nut upper end, and the externally threaded lower end of silk braid nut is with lower protruding block 12, further
Saying, the shape of silk braid nut upper end is the internal ring shape according to locating snap ring and designs, the preferred plastic production of material of silk braid nut,
Injection molding silk braid nut out ensure that fit dimension precision, and qualification rate is high.
As shown in Figure 4, locating snap ring 8 is in circular, and the inner ring surface of locating snap ring is provided with protruding 10, locating snap ring for described locating snap ring
Stopping projection 11 is had to arrange with the backrest that throws one's back out of inner ring surface on outer ring surface, the employing injection mo(u)lding of described locating snap ring, furtherly,
The projection that inner ring surface is arranged is two and arranges face, and tension-torsion power is strengthened, and two convex to form keyway function, stopping of outer ring surface
The effect of dynamic projection be when locating snap ring by design around silk braid nut 4 rotary motion to top dead centre time, baffle ring opening only touches
(as shown in Figure 6) will be stopped during stopping projection on rotating ring outer ring surface.
The stroke of baffle ring 7 between silk braid nut lower end lower protruding block 12 and locating snap ring 8 outer ring surface stopping projection 11,
Lower protruding block 12 and stopping projection 11 determine the number of turns or the referred to as total angle of rotation number of degrees of working rotor, and the openings house on baffle ring turns
Vertical bar on sub-inwall can slide up and down.
During work, rotor 3 drives screw mandrel to rotate, and screw mandrel rises or falls along the female thread of silk braid nut, makes valve port quilt
On and off, rotor banding movable wire bar rotates along silk braid nut with hour hands and drives baffle ring to press design wrapping wire nut and rotates fortune
Moving the top dead centre 13 of silk braid nut, baffle ring opening touches the stopping projection on locating snap ring outer ring surface and stops, at this moment valve
Mouth conducting, otherwise, baffle ring is from top dead centre adverse movement return initial position, and the opening on baffle ring contacts the lower of locating snap ring to be stopped
Putting 14 and stop, valve port is closed, and can be provided with stepping and be accurately controlled accordingly between upper and lower stop.
Claims (4)
1. an expansion valve, it includes that screw mandrel, screw mandrel are assemblied on the internal thread of silk braid nut, and screw mandrel lower end is connected with needle, valve
Pin is contained on valve port, and described screw mandrel upper end is connected with rotor dummy slider, and described valve port upper end is cased with silk braid nut, and baffle ring is sleeved on silk
The upper end of the outer wall of set nut, the top of silk braid nut, equipped with locating snap ring, is connected by axle between rotor with screw mandrel, silk braid nut
Outer wall on be provided with for baffle ring rotate external screw thread, it is characterised in that: silk braid nut upper end has and locating snap ring outer ring surface phase
The groove of coupling, the inner ring surface of locating snap ring is provided with projection, and locating snap ring outer ring surface has throwing one's back out of stopping projection and inner ring surface
Backrest is arranged.
A kind of expansion valve the most according to claim 1, it is characterised in that: the shape of silk braid nut upper end is according to locating snap ring
Internal ring shape and design, the material selection plastic production of silk braid nut.
A kind of expansion valve the most according to claim 1, it is characterised in that: described locating snap ring uses injection mo(u)lding.
A kind of expansion valve the most according to claim 1, it is characterised in that: silk braid nut lower end lower protruding block and locating snap ring outer shroud
It it is the stroke of baffle ring between the stopping projection of face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620575045.6U CN205784054U (en) | 2016-06-13 | 2016-06-13 | A kind of expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620575045.6U CN205784054U (en) | 2016-06-13 | 2016-06-13 | A kind of expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205784054U true CN205784054U (en) | 2016-12-07 |
Family
ID=58132845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620575045.6U Active CN205784054U (en) | 2016-06-13 | 2016-06-13 | A kind of expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205784054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078192A1 (en) * | 2018-10-16 | 2020-04-23 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
-
2016
- 2016-06-13 CN CN201620575045.6U patent/CN205784054U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078192A1 (en) * | 2018-10-16 | 2020-04-23 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| KR20210046761A (en) * | 2018-10-16 | 2021-04-28 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Electronic expansion valve |
| KR102461982B1 (en) | 2018-10-16 | 2022-11-01 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |