CN202252154U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN202252154U CN202252154U CN2011203699679U CN201120369967U CN202252154U CN 202252154 U CN202252154 U CN 202252154U CN 2011203699679 U CN2011203699679 U CN 2011203699679U CN 201120369967 U CN201120369967 U CN 201120369967U CN 202252154 U CN202252154 U CN 202252154U
- Authority
- CN
- China
- Prior art keywords
- valve
- port
- main body
- chamber
- sliding cavity
- 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 - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000007373 indentation Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 abstract description 14
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000007789 sealing Methods 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a check valve. The check valve comprises a valve body, a valve plug main body and a valve port; a valve plug sleeve is arranged in the valve body; the valve plug main body can slide in a sliding cavity of the valve plug sleeve; the end of the sliding cavity is provided with the valve port; and one end of the valve body is provided with a first port and a second port which are communicated with each other, and the other end of the valve body is provided with a second port and a fourth port which are communicated. The flow channel structure of the valve plug main body of the check valve is accurately designed and processed according to the flow required by the refrigeration working condition, and the refrigerating output of refrigerating fluid which passes through the check valve reaches the rated refrigerating output. The end of the valve plug main body is provided with a wrapped sealed rubber sleeve which has reasonable structural design and can fully guarantee the gas tightness of the check valve.
Description
Technical field
The utility model relates to the air conditioner technical field, more particularly, relates to a kind of one-way valve that on air conditioner, uses.
Background technique
In family expenses refrigerating appliance field, heat pump air conditioner mainly is made up of compressor, outdoor heat exchanger, throttling arrangement, vaporizer four big parts, and throttling arrangement generally is made up of main capillary tube, secondary capillary tube and one-way valve etc.The effect of one-way valve mainly is unidirectional conducting, and when air conditioner freezed, the refrigeration agent in the system can pass through from one-way valve usually, arrives in the vaporizer behind the main capillary tube of flowing through.When air conditioner operation heating mode; Refrigeration agent flows from vaporizer toward main capillary tube direction; When arriving the one-way valve port, because one-way valve is unidirectional conducting, refrigeration agent can not be from this direction circulation one-way valve; But pass through from the secondary capillary tube that is attempted by the one-way valve port, flow in the condenser through secondary capillary tube.Main capillary tube, secondary capillary tube aperture and length guarantee that according to refrigeration, the required flow precise design of heating condition and processing the refrigeration agent that passes through reaches the requirement of specified refrigerated medium heat.Therefore when air conditioner heat-production, require one-way valve must guarantee the tightness of its spool, promptly refrigeration agent can not pass through from main capillary tube, otherwise can increase the flow effect heating effect and the reliability of system refrigerant.The material that the one-way valve spool of existing technology is used generally is a metallic material; Require the machining accuracy on spool and valve port surface very high, otherwise tightness is difficult to assurance, makes present one-way valve machining control process complicated; Reject rate is higher, thereby causes cost of parts higher.
And present non-return valve function is single, and versatility is not strong, makes troubles also for manufacture control, storekeeper logistics, maintain and replace.
The model utility content
The utility model provides the one-way valve that a kind of technology is simple, course of working control is easy, with low cost in order to overcome the deficiency that above-mentioned prior art exists.
The technological scheme that the utility model adopts is: a kind of one-way valve; Comprise valve body, spool main body and valve port; In the said valve body valve cage is set, said spool main body is slided in the sliding cavity of said valve cage, and the end of said sliding cavity is provided with valve port; One end of said valve body is provided with first port and the 3rd port that communicates, and the other end is provided with second port and the 4th port that communicates.
The sidewall of said spool main body is provided with many water conservancy diversion grooves, and the end of spool main body is provided with the seal rubber sleeve boss, is provided with the groove of inside indentation at the root of seal rubber sleeve boss.
On the seal rubber sleeve boss of spool main body, be enclosed with seal rubber sleeve.
Said valve cage comprises first chamber, sliding cavity, second chamber; The internal diameter in said second chamber forms valve port less than the seal rubber sleeve boss of spool body end; Sliding cavity is between first chamber and second chamber; Be provided with spacing pressure ring at sliding cavity and connecting part, first chamber, the internal diameter of said spacing pressure ring is less than the external diameter of spool main body, and the trough valley position of said water conservancy diversion groove is in the interior ring scope of spacing pressure ring.
Be provided with positive stop lug boss at sliding cavity and connecting part, second chamber.
The position of the spacing pressure ring of corresponding valve cage is provided with the spacing grooved ring of valve body on the said valve body.
Between first port of said valve body and second port and be connected to secondary capillary tube, the 3rd port of said valve body connects condenser, and the 4th port connects main capillary tube.
Compared with prior art, the utlity model has following advantage:
The one-way valve spool main body flow passage structure of the utility model according to the required flow precise design of cooling condition with process, guarantee that the refrigeration agent pass through reaches specified refrigerating capacity.The end of spool main body is provided with the seal rubber sleeve of bundling type, and scientific structure design is reasonable, fully guarantees the tightness of one-way valve.
Description of drawings
Fig. 1 is the schematic representation of the one-way valve of the utility model in cut-off state;
Fig. 2 is the schematic representation of the one-way valve of the utility model on state;
Fig. 3 is that the B of one-way valve shown in Figure 1 is to schematic representation;
Fig. 4 is that the A of one-way valve shown in Figure 1 is to schematic representation;
Fig. 5 is an one-way valve valve cage schematic perspective view;
Fig. 6 is an one-way valve core retainer plate barrel structure cut-away view;
Fig. 7 is the structural representation of spool main body.
Embodiment
Below pass through embodiment, and combine accompanying drawing that the utility model is described further.
Referring to Fig. 1,7, the external diameter of spool main body 3 is slightly less than the internal diameter of the sliding cavity 24 of valve cage 2.The periphery of spool main body 3 evenly is provided with four water conservancy diversion grooves 31 with shape; These water conservancy diversion groove 31 degree of depth guarantee that greater than the outlet of the degree of depth to prevent that the spacing pressure ring 22 of valve cage from blocking water conservancy diversion groove 31 of the spacing pressure ring 22 of valve cage refrigeration agent can arrive first chamber 21 of valve cage 2 swimmingly when the A end is flowed through water conservancy diversion groove 31.One end of this spool main body is provided with a seal rubber sleeve boss 32, and the external diameter of sealing gum cover boss 32 is less than the external diameter of the external diameter of the spool main body internal diameter greater than valve cage second chamber 25.Offer a groove 33 apart from sealing gum cover boss 2mm place, seal rubber sleeve 4 is enclosed within prevents effectively on the sealing gum cover boss 32 that seal rubber sleeve 4 from coming off.
Referring to Fig. 1,5,6,7; Valve cage is divided into three cavitys; Be respectively to be provided with spacing pressure ring 22 between first chamber 21, sliding cavity 23,25, the first chambeies 21, second chamber and the sliding cavity 23, the internal diameter that this spacing pressure ring is 22 one-tenth is less than the external diameter of spool main body 3; Its degree of depth must be less than water conservancy diversion groove 31 degree of depth of spool main body 3 to guard against the outlet that the spacing pressure ring 22 of valve cage is blocked water conservancy diversion groove 31; The internal diameter of sliding cavity 23 is slightly larger than the external diameter of spool main body 3, and length is greater than the length of spool main body 3, so that spool main body 3 can be in sliding cavity 23 free move left and right.The internal diameter in second chamber 25 is about 2/3 of sliding cavity 23 internal diameters, and the internal diameter in this second chamber 25 has formed a positive stop lug boss 24 less than the external diameter of seal rubber sleeve boss 32 between the sliding cavity 23 and second chamber.This positive stop lug boss 24 makes spool main body 3 and seal rubber sleeve 4 form sealing.
Referring to Fig. 1,2,3,4, in advance seal rubber sleeve 4 is enclosed within on the seal rubber sleeve boss 32 of spool main body 3, then spool main body 3 is placed in the sliding cavity 23 of valve cage 2, an end of band seal rubber sleeve 4 is towards the positive stop lug boss 25 of valve cage 2.Because the external diameter of spool main body 3 is slightly less than the internal diameter of the sliding cavity 23 of valve cage 2, spool main body 3 can be free to slide in sliding cavity 23.The spacing pressure ring 22 of valve cage 2 can prevent that spool main body 3 from coming off.The valve cage that is equipped with spool main body 32 is assemblied in the check valve body 1, and spacing pressure ring 22 places of corresponding valve cage 2 press the spacing grooved ring 11 of valve body on valve body then, with moving of restriction valve cage.The secondary capillary tube of air conditioner two ends are welded on the first port A1 and the second port B1 of valve body, and main capillary tube one end is welded on the 4th port B2, and the 3rd port A2 of valve body makes this port be connected with condenser through transition tube welding etc.The shape of each port is referring to Fig. 3,4.
Referring to Fig. 1, when air conditioner heat-production, refrigeration agent through behind the main capillary-compensated when the 4th port B2 flows into; Spool main body 3 left sides receive the pressure of refrigeration agent, move right, on seal rubber sleeve 4 positive stop lug boss that is attached to valve cage 2 24 tightly on spool main body 3 boss 32; Thereby make spool main body 3 and second chamber 25 of valve cage 2 seal fully; Refrigeration agent is flowed out by the second port B1, flows into the first port A1 through secondary capillary tube, flows out from the 3rd port A2 then to get into the condenser.
Referring to Fig. 2; When air conditioner freezes; Refrigeration agent flows into from the 3rd port A2; Spool main body 3 right sides receive bigger pressure to left movement, because the degree of depth of 22 one-tenths of spacing pressure rings is less than water conservancy diversion groove 31 degree of depth of spool main body 3, so second chamber 25, sliding cavity 23, water conservancy diversion groove 31 and first chamber, 21 formation paths.And it is bigger from the resistance of pair bypass flow capillaceous; Therefore the flow direction of most of refrigeration agent---second chamber 25---sliding cavity 23---water conservancy diversion groove 31---first chamber 21---the 4th port B2 that is from the 3rd port A2; Flow into main capillary tube from the 4th port B2, get into vaporizer through behind the main capillary-compensated.
Claims (7)
1. one-way valve; Comprise valve body, spool main body and valve port; It is characterized in that: in the said valve body valve cage is set, said spool main body is slided in the sliding cavity of said valve cage, and the end of said sliding cavity is provided with valve port; One end of said valve body is provided with first port and the 3rd port that communicates, and the other end is provided with second port and the 4th port that communicates.
2. one-way valve according to claim 1 is characterized in that: the sidewall of said spool main body is provided with many water conservancy diversion grooves, and the end of spool main body is provided with the seal rubber sleeve boss, is provided with the groove of inside indentation at the root of seal rubber sleeve boss.
3. one-way valve according to claim 2 is characterized in that: on the seal rubber sleeve boss of spool main body, be enclosed with seal rubber sleeve.
4. one-way valve according to claim 3; It is characterized in that: said valve cage comprises first chamber, sliding cavity, second chamber; The internal diameter in said second chamber forms valve port less than the seal rubber sleeve boss of spool body end, and sliding cavity is provided with spacing pressure ring at sliding cavity and connecting part, first chamber between first chamber and second chamber; The internal diameter of said spacing pressure ring is less than the external diameter of spool main body, and the trough valley position of said water conservancy diversion groove is in the interior ring scope of spacing pressure ring.
5. one-way valve according to claim 4 is characterized in that: be provided with positive stop lug boss at sliding cavity and connecting part, second chamber.
6. according to claim 4 or 5 described one-way valves, it is characterized in that: the position of the spacing pressure ring of corresponding valve cage is provided with the spacing grooved ring of valve body on the said valve body.
7. one-way valve according to claim 5 is characterized in that: between first port of said valve body and second port and be connected to secondary capillary tube, the 3rd port of said valve body connects condenser, and the 4th port connects main capillary tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699679U CN202252154U (en) | 2011-09-29 | 2011-09-29 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699679U CN202252154U (en) | 2011-09-29 | 2011-09-29 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252154U true CN202252154U (en) | 2012-05-30 |
Family
ID=46113397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203699679U Expired - Fee Related CN202252154U (en) | 2011-09-29 | 2011-09-29 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327599A (en) * | 2017-07-13 | 2017-11-07 | 胡联明 | A kind of non-return gas bleeder valve with warning function |
| CN110529635A (en) * | 2019-07-16 | 2019-12-03 | 郑州轻工业学院易斯顿美术学院 | Valve gear |
-
2011
- 2011-09-29 CN CN2011203699679U patent/CN202252154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327599A (en) * | 2017-07-13 | 2017-11-07 | 胡联明 | A kind of non-return gas bleeder valve with warning function |
| CN110529635A (en) * | 2019-07-16 | 2019-12-03 | 郑州轻工业学院易斯顿美术学院 | Valve gear |
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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 |
Granted publication date: 20120530 Termination date: 20190929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |