CN202485290U - Removable one-way throttle valve - Google Patents
Removable one-way throttle valve Download PDFInfo
- Publication number
- CN202485290U CN202485290U CN2012200359468U CN201220035946U CN202485290U CN 202485290 U CN202485290 U CN 202485290U CN 2012200359468 U CN2012200359468 U CN 2012200359468U CN 201220035946 U CN201220035946 U CN 201220035946U CN 202485290 U CN202485290 U CN 202485290U
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- CN
- China
- Prior art keywords
- spool
- way throttle
- throttle valve
- right connector
- cylindrical hole
- 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 - Lifetime
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Abstract
The utility model relates to a removable one-way throttle valve which is used for regulating the flow rate of a coolant in an air conditioning system. The removable one-way throttle valve comprises a left joint, a connection nut, a valve core and a right joint, wherein the left joint is connected with the left end of the right joint through the connection nut, a cylindrical hole is arranged in the left end of the right joint, a conical hole is arranged on the inner end surface of the cylindrical hole, the left joint forms a valve cavity together with the cylindrical hole and conical hole in the end part of the right joint, a valve core is arranged in the valve cavity, an outer cylindrical surface of the valve core is in clearance fit with the right-end cylindrical hole of the right joint, and the head part of the valve core and the conical surface of the conical hole in the end part of the right joint form a seal pair. The removable one-way throttle valve disclosed by the utility model has the advantages of capability of conveniently realizing assembly and disassembly, convenience for changing valve core or cleaning, simple integral structure and good throttle stability.
Description
Affiliated technical field
The utility model relates to a kind of one-way throttle valve, particularly relates in air-conditioning system, working the one-way throttle valve of regulating refrigerant flow.
Background technology
The tube orifice throttling technology obtains increasing application in air-conditioning system, it is simple in structure, and throttling is stable, aspect the alternative capillary-compensated significant advantage is being arranged.Yet in the heat pump performance match test, capillary only need be adjusted length can realize mating requirement, and the tubulose choke valve need be changed whole choke valve during test, thereby make troubles owing to play the inside that the spool of throttling action is disposed at pipe.And under the situation that air conditioning pipe system is polluted, the easy generation of the throttling pore of spool is dirty stifled, and for fixing a breakdown, whole choke valve is changed under needing to weld, and reaches inconvenient.
Granted publication CN201221880Y utility model patent discloses a kind of removable one-way throttle valve, and the choke valve of this structure comprises left and right two joints and with these two attaching nuts that joint links together, is shaped on taper seat in the left joint; Right connector the inner is shaped on cylindrical hole, and left joint is connected with right connector through the attaching nut, and the inner cylindrical hole space of conical space in the right connector end by left joint forms valve pocket; Spool is housed in the valve pocket, and rounding becomes sealed circular ring on the head excircle of spool, and its center is shaped on throttling pore; Spool can slide in valve pocket; The taper seat that is shaped in its head seal annulus and the right connector is formed metal-seated, and is during real work, different according to the flow of refrigerant direction; The residing operating position of spool is also inequality, thereby realizes the purpose of one-way throttle.
The choke valve of above structure is during practical implementation, so that be connected with the air-conditioning system pipeline; Welding was got on after the mouthpiece of left and right joint was made for separately and takes over, because welding temperature is high, left again joint female cone pitch-row is near from weld seam; Must make the taper seat distortion that is shaped on the left joint, thereby it contacts the sealing pair sealing of forming with the valve core head sealed circular ring poor; Influence the throttling stability of valve, and the O-ring conical surface of the movable mating surface of spool and right connector and spool head and left joint adheres in two joints difficult assurance of its axiality of assembling back separately; Therefore; The sealing pair that spool head and taper seat are formed, it seals poor stability, and the performance of corresponding choke valve is also relatively poor.
Summary of the invention
The utility model is developed in view of overcoming the above problems, and its purpose is to provide a kind of overall structure simple, and processing is simple, a kind of removable one-way throttle valve of throttling good stability.
For realizing above-mentioned purpose; The choke valve of the utility model comprises left joint, attaching nut, spool, right connector; Left side joint is connected the right connector left end through the attaching nut, is shaped on cylindrical hole in the said right connector left end, and is shaped on conical bore at the cylindrical hole inner face; Cylindrical hole in left side joint and the right connector end, conical bore space form valve pocket; Spool is housed in the valve pocket, and the external cylindrical surface of spool cooperates with the left end cylindrical hole of right connector is movable, and the taper seat of the conical bore in spool head and the right connector end is formed sealing pair.
Preferably, the cylindrical hole in the described right connector end, conical bore are the coaxial setting of series connection.
Preferably, described spool is triangular spool, and the center is shaped on throttling pore.
Preferably, described spool head is cylindrical, and seamed edge is rounded to sealed circular ring.
Choose wantonly, described spool head is conical, and the approximate mid-section of its taper seat is provided with annular groove, is provided with flexible seal ring in the annular groove.
Choose wantonly, the flexible seal ring that is provided with in the described annular groove is 0 RunddichtringO.
Choose wantonly, the flexible seal ring that is provided with in the described annular groove is the flexible seal ring of sheet.
Preferably, in the adapter of described left joint screen modules is housed.
The removable one-way throttle valve of the utility model, the sealing pair of spool and left joint is set on spool and the right connector in the disclosed CN201221880Y utility model patent, and will be with the movable mating holes of spool, be located in the same end of right connector with the spool head conical bore that is sealed and matched; Working axiality is good, and it is far away to carry out welding position distance circle taper hole after the right connector metalworking, therefore; Its sealing surface distortion is very little; And cylindrical hole and O-ring taper hole that the activity of right connector end inner spool cooperates can process simultaneously, handling ease, and axiality is good; Therefore structure is simple relatively, and stability is good.
Description of drawings
Fig. 1 is the one-way throttle valve embodiment longitudinal section of the utility model;
Fig. 2 is the structure cutaway view of right connector among the utility model embodiment;
Fig. 3 (a) is the structural front view of spool among the utility model embodiment;
Fig. 3 (b) is the structure left view of spool among the utility model embodiment;
Fig. 4 (a) is the valve core structure front view of the another embodiment of the utility model;
Fig. 4 (b) is the valve core structure left view of the another embodiment of the utility model;
Fig. 5 is the valve core structure cutaway view of another embodiment of the utility model.
The specific embodiment
Specify the embodiment of the utility model one-way throttle valve below according to accompanying drawing.Fig. 1 is the longitudinal section of the removable one-way throttle valve embodiment of the utility model; It is made up of left joint 3, attaching nut 4, spool 6, right connector 7; Left side joint 3 is connected the left end of right connector 7 through attaching nut 4, because the choke valve of illustrated embodiment is to be contained in the coolant circulating system such as air-conditioner to use, therefore; Its left joint 3, right connector 7 also be respectively equipped with take over 1 with take over 8; Take over 1 with take over 8 and be the manufacturing of red copper tubing, but material TP2, T2 etc. so that be connected with the air-conditioning system pipeline; For guaranteeing that left joint 3 is connected sealing with right connector 7, its junction also is provided with sealing ring 5, and sealing ring 5 usefulness rubber are made, and also can make with polytetrafluoroethylplastic plastic, for considering the versatility of this choke valve cold-producing medium, is preferably the polytetrafluoroethylene (PTFE) material and makes; Right connector 7 structures are as shown in Figure 2, and the right connector material must be convenient to processing and have rustless property, and available brass bar such as HPb59-1 form through metalworking; Right connector 7 left ends are shaped on external screw thread 7c; Be shaped on cylindrical hole 7a in the left part, and be coaxially arranged with conical bore 7b in the series connection with it of cylindrical hole 7a inner face, right connector is shaped on cylindrical hole 7d in 7 right parts; Cylindrical hole 7d is connected with adapter 8 solderings; After right connector 7 assembled with left joint 3, cylindrical hole 7a, conical bore 7b space in left joint 3 and right connector 7 ends formed a valve pocket, and spool 6 is housed in the valve pocket; The external cylindrical surface 6a of spool 6 cooperates with the left end cylindrical hole 7a of right connector 7 is movable, and the taper seat of the conical bore 7b in spool 6 heads and right connector 7 ends is formed sealing pair.
Fig. 3 (a), Fig. 3 (b) are the front view and the left view of spool among the utility model embodiment, and spool 6 is arranged in the valve pocket of right connector 7 ends, and spool 6 is triangular spool; Also can the rib piece more than three, like four ribs, five ribs, the center is shaped on throttling pore 6b; Its rib piece periphery is shaped on external cylindrical surface 6a, cylindrical hole 7a matched in clearance in its size and right connector 7 ends, and spool 6 heads are cylindrical; And seamed edge is rounded to sealed circular ring 6c; It contacts with the taper seat of conical bore 7b in right connector 7 ends forms sealing pair, during actual fabrication, spool can with brass, aluminium alloy etc. pull into band rib piece bar after metalworking form.
Fig. 4 (a), Fig. 4 (b) are the front view and the left view of the another specific embodiment of valve core structure among the utility model embodiment; Described spool head is conical; The approximate mid-section of its taper seat is provided with annular groove, is provided with flexible seal ring in the annular groove, and sealing ring can be O RunddichtringO 6 ' c; Also can be the flexible seal ring 6 of sheet as shown in Figure 5 " c, its respectively with right connector 7 ends in the taper seat of conical bore 7b contact and form sealing pair.
When choke valve specifically uses, spool 6 generation jams are produced disabler, in the adapter 1 of left joint 3, also be provided with a screen modules 2 for preventing the impurity in the air-conditioning system.
When cold-producing medium when the choke valve left end flows into, cold-producing medium gets into from the adapter 1 of left joint, after screen modules 2 is filtered; The cold-producing medium of cleaning promotes spool 6 and slides to the right; The taper seat of female cone hole, the end 7b of the head of spool 6 and right connector 7 is close to sealing, forces cold-producing medium to pass through from the throttling pore 6b of spool 6, and the throttling pore 6b of spool 6 is for to process according to the flow precise design; Feasible refrigerant amount through whole one-way throttle valve reaches rated value, thereby realizes specified efficiency.
When cold-producing medium when the choke valve right-hand member flows into, cold-producing medium gets into from the adapter 8 of right connector, cold-producing medium promotes spool 6 and slides left, spool 6 is in open mode, does not play throttling action, therefore, the realization one-way throttle.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. removable one-way throttle valve; Comprise left joint (3), attaching nut (4), spool (6), right connector (7); Left side joint (3) is connected right connector (7) left end through attaching nut (4), it is characterized in that being shaped on cylindrical hole (7a) in said right connector (7) left end, and is shaped on conical bore (7b) at cylindrical hole (7a) inner face; Cylindrical hole (7a) in left side joint (3) and right connector (7) end, conical bore (7b) space form valve pocket; Spool (6) is housed in the said valve pocket, and the external cylindrical surface (6a) of spool (6) cooperates with the left end cylindrical hole (7a) of right connector (7) is movable, and the taper seat of the conical bore (7b) in spool (6) head and right connector (7) end is formed sealing pair.
2. one-way throttle valve according to claim 1 is characterized in that cylindrical hole (7a), the conical bore (7b) in described right connector (7) end is the coaxial setting of series connection.
3. one-way throttle valve according to claim 1 is characterized in that said spool (6) is triangular spool, and the center is shaped on throttling pore (6b).
4. one-way throttle valve according to claim 1 it is characterized in that described spool (6) head is cylindrical, and seamed edge is rounded to sealed circular ring (6c).
5. one-way throttle valve according to claim 1 is characterized in that described spool head for conical, and the approximate mid-section of its taper seat is provided with annular groove, is provided with flexible seal ring in the annular groove.
6. one-way throttle valve according to claim 5 is characterized in that the flexible seal ring that is provided with in the described annular groove is an O RunddichtringO (6 ' c).
7. one-way throttle valve according to claim 5 is characterized in that the flexible seal ring that is provided with in the described annular groove is the flexible seal ring (6 " c) of sheet.
8. one-way throttle valve according to claim 1 is characterized in that in the adapter (1) of described left joint (3) screen modules (2) being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200359468U CN202485290U (en) | 2012-01-12 | 2012-01-12 | Removable one-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200359468U CN202485290U (en) | 2012-01-12 | 2012-01-12 | Removable one-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485290U true CN202485290U (en) | 2012-10-10 |
Family
ID=46959708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200359468U Expired - Lifetime CN202485290U (en) | 2012-01-12 | 2012-01-12 | Removable one-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485290U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266418A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | One-way throttling valve with conveniently-dismounted filter screen and used for air conditioner |
| CN105627611A (en) * | 2014-10-28 | 2016-06-01 | 广东美的制冷设备有限公司 | Air conditioner |
| CN114688262A (en) * | 2022-02-28 | 2022-07-01 | 武汉圣禹排水系统有限公司 | Pilot valve and vacuum valve |
-
2012
- 2012-01-12 CN CN2012200359468U patent/CN202485290U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266418A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | One-way throttling valve with conveniently-dismounted filter screen and used for air conditioner |
| CN105627611A (en) * | 2014-10-28 | 2016-06-01 | 广东美的制冷设备有限公司 | Air conditioner |
| CN114688262A (en) * | 2022-02-28 | 2022-07-01 | 武汉圣禹排水系统有限公司 | Pilot valve and vacuum valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |