CN202420051U - Bidirectional throttle valve - Google Patents
Bidirectional throttle valve Download PDFInfo
- Publication number
- CN202420051U CN202420051U CN2012200236523U CN201220023652U CN202420051U CN 202420051 U CN202420051 U CN 202420051U CN 2012200236523 U CN2012200236523 U CN 2012200236523U CN 201220023652 U CN201220023652 U CN 201220023652U CN 202420051 U CN202420051 U CN 202420051U
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- CN
- China
- Prior art keywords
- valve
- spool
- valve seat
- chamber
- tube connector
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a bidirectional throttle valve, which belongs to valves. An existing bidirectional throttle valve is high in machining difficulty and manufacturing cost, and components of the existing bidirectional throttle valve are easily abraded. The bidirectional throttle valve comprises a connecting pipe and a valve seat, the valve seat is fixedly mounted in an inner cavity of the connecting pipe and divides the inner cavity of the connecting pipe into a first cavity and a second cavity, a valve cavity is disposed at one end, close to the second cavity, of the valve seat, a valve spool is arranged in the valve cavity, an opening is arranged at one end, close to the second cavity, of the valve cavity, a valve spool limiting mechanism is arranged at the opening of the valve cavity, a valve spool driving flow channel is arranged on the valve spool limiting mechanism, a valve port is disposed at the bottom of the valve cavity, a main throttle channel is arranged on the valve seat and communicated with the first cavity and the valve port, a conical sealing surface is disposed at one end, opposite to the valve port, of the valve spool, an auxiliary throttle channel is arranged on the valve spool and runs through two ends of the valve spool, a port of the auxiliary throttle channel is aligned to the valve port, a flow guide gap is arranged between the outer wall of the valve seat and the wall of the inner cavity of the connecting pipe, and the valve cavity is communicated with the flow guide gap via a flow guide hole disposed on the valve seat. The bidirectional throttle valve is low in manufacturing cost and impact to the valve spool.
Description
Technical field
The utility model belongs to valve, especially is used for air-conditioning to regulate the bidirectional throttling valve of cooling and warming rate-of flow relevant with a kind of.
Background technology
Choke valve is through changing throttling cross section or the chock length valve with the control fluid flow.Use a kind of bidirectional throttling valve to realize the flow-control of cooling and warming medium in the air-conditioning system.Existing bidirectional throttling valve is as shown in Figure 1; Adopt double spool, bivalve seat to join the structure of back-up ring; Mainly form the refrigeration orifice union by first spool 3, first valve seat 2, mainly be made up of second spool 5, second valve seat 6 and heat orifice union, back-up ring 4 is between two groups of assemblies; Valve seat, back-up ring are fastened on tube connector 1 inner chamber through reverse riveting and form bidirectional throttling valve.Such choke valve needs a plurality of spools, valve component, complex structure, and difficulty of processing is high, and manufacturing cost is high; Spool and valve seat collide easy abrasion for a long time, can strengthen leakage rate, thereby cause choke valve shortening in service life.
The utility model content
The purpose of the utility model is exactly that existing bidirectional throttling valve difficulty of processing is high with manufacturing cost, the defective of assembly easy abrasion in order to overcome, and provides a kind of and makes relatively easily, the bidirectional throttling valve of low cost of manufacture, long service life.
For this reason, the utility model adopts following technical scheme: bidirectional throttling valve, comprise tube connector and valve seat, and valve seat is fastening to be installed in the tube connector inner chamber, and valve seat outer wall and tube connector internal chamber wall form and closely cooperate, and the tube connector inner chamber is separated into first chamber and second chamber; It is characterized in that: the end near second chamber on the described valve seat is provided with valve pocket, is equipped with a spool in the valve pocket, and valve pocket is near an end opening in second chamber; As the spool installation channel; The valve pocket opening part is provided with the spool position-limit mechanism, and spool is limited in the valve pocket, and the spool position-limit mechanism is provided with spool and drives circulation road; Be communicated with the valve pocket and second chamber, the valve pocket bottom is provided with valve port; Valve seat is provided with main throttling passage, and main throttling passage one end is communicated with first chamber, and the other end is communicated with described valve port; The relative end of spool and valve port is provided with conical seal (contact) face, and spool is provided with the chromaffin body circulation road, and the chromaffin body circulation road connects the spool two ends, and a port part aligned with port, and main throttling passage circulation area is not less than chromaffin body circulation road circulation area; Be provided with the water conservancy diversion gap between described valve seat outer wall and the tube connector internal chamber wall; The circulation area in water conservancy diversion gap is not less than the circulation area of described main throttling passage; Valve seat is provided with pod apertures and is communicated with valve pocket and water conservancy diversion gap; The pod apertures inner orifice spool during near the spool position-limit mechanism between valve core sealed cover and valve port, the pod apertures circulation area is not less than main throttling passage circulation area.
When the utility model medium flowed to the right, medium flowed into main throttling passage from first chamber, promoted spool and left valve port; Part medium flows to valve pocket from the chromaffin body circulation road; Spool from the spool position-limit mechanism drives inflow second chamber the circulation road again, and the spool slippage is opened pod apertures near behind the spool position-limit mechanism; Formation from main throttling passage to valve pocket again through pod apertures, water conservancy diversion gap passage to second chamber; And drive the passage of circulation road from main throttling passage, valve pocket, chromaffin body circulation road, spool to second chamber, but rate-of flow control by main throttling passage, realize that rate-of flow controls.MEDIA FLOW is to left the time; Medium gets into the spool driving circulation road on the spool position-limit mechanism from second chamber of tube connector; Spool is moved toward valve port one thruster; And a part flows into valve pocket through the chromaffin body circulation road, valve core sealed cover with close after valve port contacts from second chamber through the water conservancy diversion gap, pod apertures, valve pocket, main throttling passage be to the passage in first chamber, drives circulation road, valve pocket, chromaffin body circulation road, the main throttling passage passage to first chamber to staying second chamber through spool; Rate-of flow is realized rate-of flow control only by the control of chromaffin body circulation road.
As to such scheme replenish and perfect, the utility model also comprises following technical characterictic:
Described valve seat outer wall upper edge circumferentially is provided with groove, and described tube connector tube wall convex snaps in this groove, and valve seat and tube connector are interfixed.
Be respectively arranged with filtering screen in the tube connector inner chamber at described valve seat two ends, filtering screen and tube connector inwall are fastening.
Described spool position-limit mechanism is the hollow back-up ring, and the hollow cavity of back-up ring drives circulation road as described spool.
Described valve port place is provided with the sealing pair that cooperates with valve core sealed cover, plays the enhancing sealing function.
Further, described sealing pair can also be the circular arc convex for imitative ball shape or taper.
Be provided with transitional pore between described valve port and the main throttling passage; The hidden danger that is used to reduce the distortion that possibly exist on the spool long-term action rear valve base and causes flow difference; This transitional pore aperture is not less than main throttling passage internal diameter, and transitional pore length is greater than valve core sealed cover length.
Use the utility model can reach following beneficial effect: through main throttling passage is set on the valve seat in being fixed in tube connector, the chromaffin body circulation road to be set on spool, to have reduced parts, practiced thrift cost; Move in the valve pocket of spool on valve seat, avoided spool that the fastening of valve seat and tube connector arrived in the shock effect of valve seat, the leakage that can not produce valve seat and the fastening place of tube connector, the service life of prolongation choke valve.
Description of drawings
Fig. 1 is the profile of existing bidirectional throttling valve.
Fig. 2 is the profile of the utility model.
The specific embodiment
Be described in detail below in conjunction with the specific embodiment of accompanying drawing the utility model.
As shown in Figure 2; The utility model comprises tube connector 7 and valve seat 10; Valve seat 10 outer wall upper edges circumferentially are provided with groove, and tube connector tube wall convex snaps in this groove, and valve seat and tube connector are interfixed; Valve seat 10 outer walls and tube connector 7 internal chamber walls form and closely cooperate, and the tube connector inner chamber is separated into first chamber 8 and second chamber 15; End near second chamber on the valve seat is provided with valve pocket 19, is equipped with a spool 17 in the valve pocket 19, and valve pocket 17 is near an end opening in second chamber; As the spool installation channel, the valve pocket opening part is provided with spool position-limit mechanism 14, and spool is limited in the valve pocket; Spool position-limit mechanism 14 is provided with spool and drives circulation road 16, and spool position-limit mechanism 14 is the hollow back-up ring, and the hollow cavity of back-up ring drives circulation road 16 as spool; Be communicated with the valve pocket 19 and second chamber 15, valve pocket 19 bottoms are provided with valve port 20; Valve seat 10 is provided with main throttling passage 21; One end of main throttling passage 21 is communicated with first chamber 8; Be provided with transitional pore 11 between the valve port 20 and main throttling passage 21 other ends, the transitional pore aperture is not less than main throttling passage internal diameter, and transitional pore length is greater than valve core sealed cover length; Spool 17 ends relative with valve port are provided with conical seal (contact) face; Valve port 20 places are provided with the sealing pair that cooperates with valve core sealed cover; Sealing pair is imitative ball shape, and spool 17 is provided with chromaffin body circulation road 13, and chromaffin body circulation road 13 connects the spool two ends; And a port part aligned with port, the circulation area of main throttling passage 21 is not less than the circulation area of chromaffin body circulation road 13; Be provided with water conservancy diversion gap 18 between the internal chamber wall of the outer wall of valve seat 10 and tube connector 7; The circulation area in water conservancy diversion gap 18 is not less than the circulation area of main throttling passage 21; Valve seat 10 is provided with pod apertures 12 and is communicated with valve pocket 19 and water conservancy diversion gap 18; Pod apertures 12 inner orifices spool during near the spool position-limit mechanism between valve core sealed cover and valve port, the circulation area of pod apertures 12 is not less than the circulation area of main throttling passage 21; Be respectively arranged with filtering screen 9 in the tube connector inner chamber at valve seat 10 two ends, filtering screen 9 is closely fixing with the inwall of tube connector 7.
As another kind of embodiment, the sealing pair at valve port place also can be taper in the technique scheme, can also be the circular arc convex.
Claims (9)
1. bidirectional throttling valve comprises tube connector (7) and valve seat (10), and valve seat (10) is fastening to be installed in the tube connector inner chamber, and valve seat outer wall and tube connector internal chamber wall form and closely cooperate, and the tube connector inner chamber is separated into first chamber (8) and second chamber (15); It is characterized in that: the end near second chamber on the described valve seat is provided with valve pocket (19); Be equipped with a spool (17) in the valve pocket (19); Valve pocket is near an end opening in second chamber, and the valve pocket opening part is provided with spool position-limit mechanism (14), and spool position-limit mechanism (14) is provided with spool and drives circulation road (16); Be communicated with the valve pocket and second chamber, the valve pocket bottom is provided with valve port (20); Valve seat (10) is provided with main throttling passage (21), and main throttling passage (21) one ends are communicated with first chamber (8), and the other end is communicated with described valve port (20); An end relative with valve port (20) of spool (10) is provided with conical seal (contact) face; Spool (17) is provided with chromaffin body circulation road (13); Chromaffin body circulation road (13) connects the spool two ends; And a port part aligned with port (20), the circulation area of main throttling passage (21) is not less than the circulation area of chromaffin body circulation road (13); Be provided with water conservancy diversion gap (18) between described valve seat outer wall and the tube connector internal chamber wall; The circulation area in water conservancy diversion gap (18) is not less than the circulation area of described main throttling passage (21); Valve seat (10) is provided with pod apertures (12) and is communicated with valve pocket and water conservancy diversion gap; The pod apertures inner orifice spool during near the spool position-limit mechanism between valve core sealed cover and valve port, the pod apertures circulation area is not less than main throttling passage circulation area.
2. bidirectional throttling valve according to claim 1 is characterized in that: described valve seat (10) outer wall upper edge circumferentially is provided with groove, and described tube connector (7) tube wall convex snaps in this groove, and valve seat and tube connector are interfixed.
3. bidirectional throttling valve according to claim 2 is characterized in that: be provided with filtering screen (9) in the tube connector inner chamber at described valve seat two ends, filtering screen (9) is fastening with tube connector (7) inwall.
4. bidirectional throttling valve according to claim 3 is characterized in that: described spool position-limit mechanism (14) is the hollow back-up ring, and the hollow cavity of back-up ring drives circulation road as described spool.
5. bidirectional throttling valve according to claim 4 is characterized in that: described valve port place is provided with the sealing pair that cooperates with valve core sealed cover.
6. bidirectional throttling valve according to claim 5 is characterized in that: described sealing pair is imitative ball shape.
7. bidirectional throttling valve according to claim 5 is characterized in that: described sealing pair is a taper.
8. bidirectional throttling valve according to claim 5 is characterized in that: described sealing pair is the circular arc convex.
9. according to claim 6,7 or 8 described bidirectional throttling valves, it is characterized in that: be provided with transitional pore (11) between described valve port and the main throttling passage, this transitional pore aperture is not less than main throttling passage internal diameter, and transitional pore length is greater than valve core sealed cover length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200236523U CN202420051U (en) | 2012-01-18 | 2012-01-18 | Bidirectional throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200236523U CN202420051U (en) | 2012-01-18 | 2012-01-18 | Bidirectional throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420051U true CN202420051U (en) | 2012-09-05 |
Family
ID=46744808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200236523U Expired - Fee Related CN202420051U (en) | 2012-01-18 | 2012-01-18 | Bidirectional throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420051U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422211A (en) * | 2013-09-05 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioner and short tube throttle valve thereof |
| CN108151380A (en) * | 2018-01-05 | 2018-06-12 | 珠海格力电器股份有限公司 | A kind of throttle current divider and with its air conditioner |
| CN110145902A (en) * | 2019-05-28 | 2019-08-20 | 宁波奥克斯电气股份有限公司 | A kind of filter and air conditioner of bidirectional throttle |
-
2012
- 2012-01-18 CN CN2012200236523U patent/CN202420051U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422211A (en) * | 2013-09-05 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioner and short tube throttle valve thereof |
| CN104422211B (en) * | 2013-09-05 | 2016-08-24 | 珠海格力电器股份有限公司 | Air-conditioner and short-tube throttle valve thereof |
| CN108151380A (en) * | 2018-01-05 | 2018-06-12 | 珠海格力电器股份有限公司 | A kind of throttle current divider and with its air conditioner |
| CN108151380B (en) * | 2018-01-05 | 2023-12-26 | 珠海格力电器股份有限公司 | Throttle shunt and air conditioner with same |
| CN110145902A (en) * | 2019-05-28 | 2019-08-20 | 宁波奥克斯电气股份有限公司 | A kind of filter and air conditioner of bidirectional throttle |
| WO2020238507A1 (en) * | 2019-05-28 | 2020-12-03 | 宁波奥克斯电气股份有限公司 | Bidirectional throttling filter and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20190118 |