CN107606293A - A kind of expansion valve - Google Patents
A kind of expansion valve Download PDFInfo
- Publication number
- CN107606293A CN107606293A CN201610544087.8A CN201610544087A CN107606293A CN 107606293 A CN107606293 A CN 107606293A CN 201610544087 A CN201610544087 A CN 201610544087A CN 107606293 A CN107606293 A CN 107606293A
- Authority
- CN
- China
- Prior art keywords
- silk braid
- locating snap
- screw mandrel
- snap ring
- braid 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.)
- Pending
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention 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 on valve port, the screw mandrel upper end is connected with rotor dummy slider, the 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, pass through axis connection between rotor and screw mandrel, the external screw thread for baffle ring rotation is provided with the outer wall of silk braid nut, there is the groove to match with locating snap ring outer ring surface silk braid nut upper end, the inner ring surface of locating snap ring is provided with projection, the projection for having stopping projection and inner ring surface on locating snap ring outer ring surface is set back-to-back.The technical program product structure is simple and reliable, can reduce product cost, reduces difficulty of processing, saves the output time.
Description
Technical field
The present invention relates to a kind of expansion valve, suitable for refrigeration, air-conditioning and art of heat pumps, realizes automatically adjusting for refrigerant flow.
Background technology
The temperature-sensitive mechanism built that existing expansion valve is used for kind of refrigeration cycle is put, to reduce noise, reach fast-refrigerating or heating, locating snap ring on existing expansion valve is when motor works, rotor rotates with baffle ring, during stopping, because the effect locating snap ring of inertia can not shut down at once, collision is also easy to produce, the long service life for causing locating snap ring, locating snap ring and silk braid nut are to use intermetallic composite coating in addition, it is manufactured hardly possible, process is more, scale error is big, therefore qualification rate is low, noise is big in use, and cost is high.
The content of the invention
The task of the present invention is to propose a kind of reduction product cost, improves production qualification rate, reduces a kind of expansion valve of noise.
The task of the present invention is so completed, it includes screw mandrel, and screw mandrel is assemblied on the internal thread of silk braid nut, and screw mandrel lower end is connected with needle, needle is on valve port, the screw mandrel upper end is connected with rotor dummy slider, and the valve port upper end is cased with silk braid nut, and 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, by axis connection between rotor and screw mandrel, the external screw thread for baffle ring rotation is provided with the outer wall of silk braid nut, it is characterised in that：There is the groove to match with locating snap ring outer ring surface silk braid nut upper end, and the inner ring surface of locating snap ring is provided with projection, and the projection for having stopping projection and inner ring surface on locating snap ring outer ring surface is set back-to-back.The shape of silk braid nut upper end is designed, the material selection plastic production of silk braid nut according to the inner ring shape of locating snap ring.The locating snap ring uses injection molding.It is the stroke of baffle ring between silk braid nut lower end lower protruding block and locating snap ring outer ring surface stopping projection.
The present invention has the following effects that：The technical program product structure is simple and reliable, can reduce product cost, reduces difficulty of processing, saves the output time.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；Fig. 2 is silk braid nut installation diagram；Fig. 3 is the structural representation of prior art baffle ring；Fig. 4 is baffle ring structural representation of the present invention；Fig. 5 is the structural representation that baffle ring runs to top dead centre；Fig. 6 is the structural representation that baffle ring runs to lower dead center.
Drawing explanation：1st, 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, raised, 11, stopping projection, 12, lower protruding block, 13, top dead centre, 14, lower dead center.
Embodiment
Embodiment is described in detail with reference to the figures above, as shown in Figure 1, screw mandrel 9 is assemblied on the internal thread of silk braid nut 4, and screw mandrel lower end is connected with needle 6, and needle is on valve port, the screw mandrel upper end is connected with rotor dummy slider 2, the valve port upper end is cased with silk braid nut 4, and 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, by axis connection between rotor and screw mandrel 9, valve bonnet 1 is covered with valve seat 5.
The silk braid nut is as shown in Figure 2, the external screw thread for baffle ring rotation is provided with the outer wall of silk braid nut, there is the groove to match with locating snap ring outer ring surface silk braid nut upper end, the externally threaded lower end of silk braid nut carries lower protruding block 12, furtherly, the shape of silk braid nut upper end is designed, the preferred plastic production of material of silk braid nut according to the inner ring shape of locating snap ring, the silk braid nut that injection molding comes out can ensure fit dimension precision, qualification rate height.
The locating snap ring is as shown in Figure 4, locating snap ring 8 is in annular shape, the inner ring surface of locating snap ring is provided with projection 10, the projection for having stopping projection 11 and inner ring surface on locating snap ring outer ring surface is set back-to-back, the locating snap ring uses injection molding, furtherly, the projection that inner ring surface is set is two and face is set, tension-torsion power is strengthened, two convex to form keyway function, the effect of the stopping projection of outer ring surface be when locating snap ring by design around the rotary motion of silk braid nut 4 to top dead centre when, will stopping when baffle ring opening touches the stopping projection on locating snap ring outer ring surface（As shown in Figure 6）.
The stroke of baffle ring 7 is between silk braid nut lower end lower protruding block 12 and the outer ring surface stopping projection 11 of locating snap ring 8, lower protruding block 12 and stopping projection 11 determine the number of turns of working rotor or are the total angle of rotation number of degrees, and the vertical bar in openings house rotor inner wall on baffle ring can slide up and down.
During work, rotor 3 drives screw mandrel to rotate, internal thread of the screw mandrel along silk braid nut rises or falls, valve port is set to be switched on or close, rotor drives screw mandrel to be rotated with hour hands along silk braid nut and drives top dead centre 13 of the baffle ring by design wrapping wire nut rotary motion to silk braid nut, baffle ring opening touches the stopping projection on locating snap ring outer ring surface and stopped, at this moment valve port turns on, it is on the contrary, baffle ring is from top dead centre counter motion return initial position, opening on baffle ring contacts the lower dead center 14 of locating snap ring and stopped, valve port is closed, it can be provided with stepping between upper and lower stop and accordingly be accurately controlled.
Claims (4)
- A kind of 1. expansion valve, it includes screw mandrel, and screw mandrel is assemblied on the internal thread of silk braid nut, and screw mandrel lower end is connected with needle, needle is on valve port, the screw mandrel upper end is connected with rotor dummy slider, and the valve port upper end is cased with silk braid nut, and 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, by axis connection between rotor and screw mandrel, the external screw thread for baffle ring rotation is provided with the outer wall of silk braid nut, it is characterised in that：There is the groove to match with locating snap ring outer ring surface silk braid nut upper end, and the inner ring surface of locating snap ring is provided with projection, and the projection for having stopping projection and inner ring surface on locating snap ring outer ring surface is set back-to-back.
- A kind of 2. expansion valve according to claim 1, it is characterised in that：The shape of silk braid nut upper end is designed, the material selection plastic production of silk braid nut according to the inner ring shape of locating snap ring.
- A kind of 3. expansion valve according to claim 1, it is characterised in that：The locating snap ring uses injection molding.
- A kind of 4. expansion valve according to claim 1, it is characterised in that：It is the stroke of baffle ring between silk braid nut lower end lower protruding block and locating snap ring outer ring surface stopping projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544087.8A CN107606293A (en) | 2016-07-12 | 2016-07-12 | A kind of expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544087.8A CN107606293A (en) | 2016-07-12 | 2016-07-12 | A kind of expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107606293A true CN107606293A (en) | 2018-01-19 |
Family
ID=61054911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610544087.8A Pending CN107606293A (en) | 2016-07-12 | 2016-07-12 | A kind of expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107606293A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958779A (en) * | 2019-04-24 | 2019-07-02 | 浙江恒森实业集团有限公司 | A kind of electric expansion valve rotor assembly |
| CN112824689A (en) * | 2019-11-21 | 2021-05-21 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
| KR20210150456A (en) * | 2019-05-10 | 2021-12-10 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | How to mount the nut assembly of the electromagnetic expansion valve, the electromagnetic expansion valve and the position limiting member |
-
2016
- 2016-07-12 CN CN201610544087.8A patent/CN107606293A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958779A (en) * | 2019-04-24 | 2019-07-02 | 浙江恒森实业集团有限公司 | A kind of electric expansion valve rotor assembly |
| KR20210150456A (en) * | 2019-05-10 | 2021-12-10 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | How to mount the nut assembly of the electromagnetic expansion valve, the electromagnetic expansion valve and the position limiting member |
| KR102572481B1 (en) * | 2019-05-10 | 2023-08-30 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | How to mount the nut assembly of the electronic expansion valve, the electronic expansion valve and the position limiting member |
| US11946555B2 (en) | 2019-05-10 | 2024-04-02 | Zhejiang Dunan Artificial Environment Co., Ltd. | Nut assembly for electronic expansion valve, electronic expansion valve, and limiting element mounting method |
| CN112824689A (en) * | 2019-11-21 | 2021-05-21 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
| CN112824689B (en) * | 2019-11-21 | 2022-05-13 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180119 |
|
| WD01 | Invention patent application deemed withdrawn after publication |