CN201221880Y - Detachable one-way throttle valve - Google Patents
Detachable one-way throttle valve Download PDFInfo
- Publication number
- CN201221880Y CN201221880Y CNU2008200489200U CN200820048920U CN201221880Y CN 201221880 Y CN201221880 Y CN 201221880Y CN U2008200489200 U CNU2008200489200 U CN U2008200489200U CN 200820048920 U CN200820048920 U CN 200820048920U CN 201221880 Y CN201221880 Y CN 201221880Y
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- way throttle
- throttle valve
- right connector
- 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 disassemble one-way throttling valve, which is used for tubular throttling parts of a single refrigeration air conditioning system. A valve body of the one-way throttling valve is formed by a nut and two connectors, which are connected, and a valve core can slide inside a cavity that is arranged between the two connectors, and the two connectors are matched with two lug bosses through a conical surface to realize the reliable sealing. The one-way throttling valve can be conveniently disassembled, so that the valve core with different orifice diameters can be conveniently replaced during the performance match test process of the air conditioner; when the pipeline system of the air conditioner is blocked, the one-way throttling valve is convenient to clean.
Description
Technical field:
The present invention relates to a kind of choke valve, be specifically related in air-conditioning system, be used to regulate the one-way throttle valve of refrigerant flow.
Background technology:
The tube orifice throttling technology is more and more used in air-conditioning system, and it is simple in structure, and throttling is reliable, aspect the alternative capillary-compensated special advantages is being arranged.Yet in the heat pump performance match test, capillary only need be adjusted length can realize the requirement of mating, and the tubulose choke valve need be changed whole choke valve, thereby make troubles owing to play the inside that the spool of throttling action is assemblied in pipe during test.And under the situation that air conditioning pipe system is polluted, the throttling pore of spool takes place dirty stifled easily, for fixing a breakdown, also need weld down whole choke valve and change.
CN2896149Y discloses the choke valve that a kind of air-conditioner is used, and has solved the problems referred to above of tube orifice choke valve, and valve body directly is connected by screw thread with joint, thereby only need disassemble joint and valve body and change spool and get final product in performance test.Yet this connected mode relies on the joint screw thread root contact sealing with the conical surface of valve end, understand owing to tapering is processed to differ and being caused sealing effectiveness not good, and joint has relative friction with the contact position of valve body in rundown process, and is easy to wear and cause seal failure.
Summary of the invention:
Be to solve the prior art problem, the invention provides a kind of simple in structure, one-way throttle valve of being easy to change or clean spool, simultaneously, the present invention also has the reliable sealing advantage.
The present invention is achieved in that
This one-way throttle valve comprises left and right two joints and the nut that two joints are linked into an integrated entity, two joints have open inner space respectively, constitute valve pocket after forming one, spool is housed in the valve pocket, spool can slide in valve pocket, under refrigerant pressure promotes, be in the throttling operating position, realize the throttling purpose.
The external cylindrical surface of left side joint has step, be with the nut of connection effect on the step, joint inside, a left side is provided with the open conical space towards right connector, the end that right connector is relative with left joint has double polarizing keys, inside has open cylindrical space, right connector also has external screw thread, nut is tightened on the external screw thread, the double polarizing keys of right connector is close on the taper seat of left joint, play sealing function, and the conical space of left joint and the cylindrical space of right connector constitute valve pocket, and the spool of throttling action has been housed in the valve pocket.
Described spool is the triangular spool, its center has throttling pore, left end has the sealing fillet, when air-conditioner is in the refrigeration work state, cold-producing medium enters from right connector, promotes spool and slides left, and fillet is close on the taper seat of left joint, force cold-producing medium to pass through, thereby reach the throttling purpose from the aperture of spool.If the cold-producing medium reverse flow enters from left joint, spool then slides to the right, and cold-producing medium can pass through from the periphery of spool, and spool does not play throttling action at this moment.
For avoiding the throttling pore of the foreign material obstruction spool in the cold-producing medium, net-filter assembly is housed also in right connector.
Adopt one-way throttle valve of the present invention,, do not relatively rotate between the taper seat of left joint and the double polarizing keys of right connector screwing in the process of nut, wearing and tearing have been avoided, and double polarizing keys further guaranteed sealing effectiveness, thereby makes sealing more reliable, and the advantage of changing spool is arranged.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The A of the spool that Fig. 2 is is to view.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the external cylindrical surface of the left joint 1 of this one-way throttle valve has step 11, be with the nut 2 of connection effect on the step 11, after nut 2 connects the external screw thread 42 of right connector 4, make left joint 1 as a whole with 4 one-tenth of right connectors, be provided with open conical space towards right connector 4 in left joint 1 inside, then there is open cylindrical space the inside of right connector 4, right connector 4 and left joint 1 relative end also has double polarizing keys 41, after nut 2 screws, the double polarizing keys 41 of right connector is close on the taper seat 12 of left joint, and the open space that two joints are relative lumps together and constitutes valve pocket 6, and triangular spool 3 is housed in the valve pocket 6.Spool 3 can slide in valve pocket 6, and its center also has throttling pore, and its left end has sealing fillet 31.Net-filter assembly 5 also is housed in right connector, the cold-producing medium of flowing through is played a role in filtering, avoid the obstruction of spool 3.
When air-conditioner is in the refrigeration work state, cold-producing medium enters from the right-hand member of right connector 1, after net-filter assembly 5 filters, enters into valve pocket 6, promoting spool 3 slides left, sealing fillet 3 is close on the taper seat 12 of left joint 1, forces cold-producing medium to pass through, if the cold-producing medium reverse flow from the aperture of spool 3,3 of spools slide to the right, cold-producing medium can pass through from the periphery of spool 3, and spool does not play throttling action 3 this moments, thereby has realized the one-way throttle purpose.
According to present embodiment, triangular spool of the present invention is a kind of preferred, and the spool more than triangular can also be arranged, and such as four rib spools, five rib spools etc., all falls into protection scope of the present invention.The statement of left side joint and right connector only is for convenience on describing rather than qualification, and one-way throttle valve of the present invention also can vertically be installed in air-conditioner, falls into protection scope of the present invention equally.
Claims (4)
1, a kind of removable one-way throttle valve, comprise left joint (1), nut (2), spool (3), right connector (4), it is characterized in that described left joint (1) and right connector (4) link together by nut (2), the inner space constitutes valve pocket (6) after forming one, and spool (3) is housed in the valve pocket (6).
2, one-way throttle valve according to claim 1, the external cylindrical surface that it is characterized in that described left joint (1) has step (11), be with the nut (2) of connection effect on the step (11), described valve pocket (6) is made of the open conical space of left joint (1) and the open cylindrical space of right connector (4), and the end of right connector (4) has the double polarizing keys (41) that seals.
3, one-way throttle valve according to claim 1 and 2 is characterized in that described spool is the triangular spool, and spool has sealing fillet (31).
4,, it is characterized in that being equipped with in the described joint (4) net-filter assembly (5) according to claim one-way throttle valve according to claim 1 and 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200489200U CN201221880Y (en) | 2008-06-02 | 2008-06-02 | Detachable one-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200489200U CN201221880Y (en) | 2008-06-02 | 2008-06-02 | Detachable one-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221880Y true CN201221880Y (en) | 2009-04-15 |
Family
ID=40575386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200489200U Expired - Lifetime CN201221880Y (en) | 2008-06-02 | 2008-06-02 | Detachable one-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221880Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155826A (en) * | 2010-12-15 | 2011-08-17 | 赵敏 | One-way movable throttle valve and air-conditioning outdoor unit using same |
| CN102537454A (en) * | 2012-01-04 | 2012-07-04 | 浙江盾安机械有限公司 | Differential pressure throttle valve |
| CN109424598A (en) * | 2017-08-28 | 2019-03-05 | 湖南财经工业职业技术学院 | A kind of anti-explosion safety connector and hydraulic system |
-
2008
- 2008-06-02 CN CNU2008200489200U patent/CN201221880Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155826A (en) * | 2010-12-15 | 2011-08-17 | 赵敏 | One-way movable throttle valve and air-conditioning outdoor unit using same |
| CN102537454A (en) * | 2012-01-04 | 2012-07-04 | 浙江盾安机械有限公司 | Differential pressure throttle valve |
| CN102537454B (en) * | 2012-01-04 | 2013-06-05 | 浙江盾安机械有限公司 | Differential pressure throttle valve |
| CN109424598A (en) * | 2017-08-28 | 2019-03-05 | 湖南财经工业职业技术学院 | A kind of anti-explosion safety connector and hydraulic system |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090415 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Hengji Metal Product Industry Co., Ltd., Guangdong Document name: Notification of Expiration of Patent Right Duration |