CN207935459U - A kind of shut-off valve suitable for refrigeration system - Google Patents
A kind of shut-off valve suitable for refrigeration system Download PDFInfo
- Publication number
- CN207935459U CN207935459U CN201721866212.3U CN201721866212U CN207935459U CN 207935459 U CN207935459 U CN 207935459U CN 201721866212 U CN201721866212 U CN 201721866212U CN 207935459 U CN207935459 U CN 207935459U
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- China
- Prior art keywords
- valve seat
- spool
- valve
- shut
- plane
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- 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 shut-off valve suitable for refrigeration system, including, valve seat and spool；Spool is mounted in valve seat, and the upper end of valve seat is formed with the groove of installation rubber ring, and inclined-plane is formed on the circumferential surface of the upper end of spool.The upper end of valve seat is integrally formed the boss that oriented center of circle direction extends.Advantageous effect is that the boss extended to center of circle direction that the rubber ring installed on valve seat and valve seat are formed integrally with the top portion is interference fitted with the spool inclined-plane in valve seat, realizes the double containment effect of spool, effectively avoids coolant leakage；Meanwhile the inclined-plane on spool can smoothly be such that valve rod enters from valve seat top, the guide surface especially on valve seat ensures spool uniform force during movement, improves safety and the service life of shut-off valve.
Description
Technical field
The utility model is related to a kind of shut-off valves；More particularly to a kind of shut-off valve suitable for refrigeration system.
Background technology
Air-conditioning system shut-off valve is mounted on outdoor unit at present, including filling nozzle, spool, connector and copper pipe；Copper pipe side and
Connection inside outdoor unit, joint side are connected with external copper pipe, and the valve rod of existing shut-off valve is mostly to enter peace from the middle part of valve seat
Dress is pressed into one piece of stainless-steel sheet and pushes down O-ring, and carries out necking to valve seat afterwards, prevents spool from removing at work, should
Structural manufacturing process is complicated, and operation difficulty is big, has prodigious security risk, leakage necking process will appear steel plate and O-ring flies out, and occurs
Leakage.In addition, valve seat is threadedly coupled with spool, due to there being gap between screw thread when spool works, when work, which can shake, causes O shapes
Both ends unbalance stress is enclosed, easily O-ring is caused to rupture, to cause refrigerant to leak, refrigeration system is made to paralyse.
Invention content
Technical problem to be solved by the utility model is to provide a kind of simple in structure, safe is suitable for refrigeration
System shut-off valve.
The utility model the technical scheme adopted is that a kind of shut-off valve suitable for refrigeration system, including, valve seat and valve
Core；The spool is mounted in valve seat, and the upper end of the valve seat is formed with the groove of installation rubber ring, the upper end of the spool
It is formed with inclined-plane on the circumferential surface in portion.
The upper end of the valve seat is integrally formed the boss that oriented center of circle direction extends.
The groove of the valve seat is oriented to spool to guide surface, guide surface is formed between the boss of valve seat.
The utility model has the beneficial effects that the rubber ring and valve seat installed on valve seat be formed integrally with the top portion to center of circle side
It is interference fitted to the boss of extension with the spool inclined-plane in valve seat, realizes the double containment effect of spool, effectively avoid cold
Matchmaker leaks；Meanwhile the inclined-plane on spool can smoothly be such that valve rod enters from valve seat top, the guide surface especially on valve seat ensures
Spool uniform force during movement improves safety and the service life of shut-off valve.
Description of the drawings
Fig. 1 is the sectional view of the utility model shut-off valve；
Fig. 2 is the close-up schematic view in the portions A in Fig. 1；
Fig. 3 is the sectional view of spool；
Fig. 4 is the sectional view of valve seat；
Fig. 5 is the close-up schematic view in the portions B in Fig. 4.
In figure：
1. 2. spool of valve seat, 3. rubber ring.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in Figures 1 to 5, the utility model shut-off valve, including, valve seat 1 and spool 2；The spool 2 is mounted on valve seat
In 1, refers to, it is noted that the application first fills O-ring, then spool is packed into valve seat, be pressed by valve seat, rubber ring 3 and spool 2
Primary seal is realized in contact；The upper end of the valve seat 1 is formed with the groove 12 of installation rubber ring 3, and rubber ring is that O-ring is interior
It fills out inside valve seat, when product is in high pressure（4.2Mpa）Working environment, O-ring will not fly out；The upper end of the spool 2
It is formed with inclined-plane 21 on circumferential surface, facilitates and is packed into spool 2.The upper end of the valve seat 1 is integrally formed what oriented center of circle direction extended
Boss 11, the boss 11 are interference fitted with the inclined-plane 21 on spool 2, and interference fit can realize secondary seal, prevent refrigerant
Leakage.The groove of the valve seat 1 can lead spool 2 to guide surface 13, guide surface is formed between the boss 11 of valve seat 1
To preventing spool from shifting at work.
The boss extended to center of circle direction that the rubber ring and valve seat installed on the utility model valve seat are formed integrally with the top portion
It is interference fitted with the spool inclined-plane in valve seat, realizes the double containment effect of spool, effectively avoid coolant leakage；Meanwhile
Inclined-plane on spool can smoothly be such that valve rod enters from valve seat top, avoid the complicated technology entered in the middle part of valve seat, especially
Guide surface on valve seat ensures spool uniform force during movement, improves safety and the service life of shut-off valve.
It is worth noting that the scope of protection of the utility model is not limited to above-mentioned specific example mode, according to this reality
Conceived with novel basic fundamental, it is also possible to which the purpose of this utility model may be implemented in basically same structure, as long as this field
Those of ordinary skill needs not move through creative work, you can the embodiment associated belongs to the protection model of the utility model
It encloses.
Claims (3)
1. a kind of shut-off valve suitable for refrigeration system, including, valve seat（1）And spool（2）；The spool（2）Mounted on valve seat
（1）It is interior, which is characterized in that the valve seat（1）Upper end be formed with installation rubber ring（3）Groove（12）, the spool（2）
Upper end circumferential surface on be formed with inclined-plane（21）.
2. the shut-off valve according to claim 1 suitable for refrigeration system, which is characterized in that the valve seat（1）Upper end
Portion is integrally formed the boss that oriented center of circle direction extends（11）.
3. the shut-off valve according to claim 1 suitable for refrigeration system, which is characterized in that the valve seat（1）Groove
To valve seat（1）Boss（11）Between be formed with guide surface（13）, guide surface is to spool（2）It is oriented to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866212.3U CN207935459U (en) | 2017-12-27 | 2017-12-27 | A kind of shut-off valve suitable for refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866212.3U CN207935459U (en) | 2017-12-27 | 2017-12-27 | A kind of shut-off valve suitable for refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935459U true CN207935459U (en) | 2018-10-02 |
Family
ID=63647474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721866212.3U Active CN207935459U (en) | 2017-12-27 | 2017-12-27 | A kind of shut-off valve suitable for refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332349A (en) * | 2019-07-02 | 2019-10-15 | 开平市祺龙五金塑胶有限公司 | A kind of multi-function water tap |
-
2017
- 2017-12-27 CN CN201721866212.3U patent/CN207935459U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332349A (en) * | 2019-07-02 | 2019-10-15 | 开平市祺龙五金塑胶有限公司 | A kind of multi-function water tap |
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