CN102242814A - Piston type four-way reversing valve - Google Patents
Piston type four-way reversing valve Download PDFInfo
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- CN102242814A CN102242814A CN2011101006919A CN201110100691A CN102242814A CN 102242814 A CN102242814 A CN 102242814A CN 2011101006919 A CN2011101006919 A CN 2011101006919A CN 201110100691 A CN201110100691 A CN 201110100691A CN 102242814 A CN102242814 A CN 102242814A
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Abstract
The invention discloses a piston type four-way reversing valve and belongs to a valve for changing the flow direction of a refrigeration working substance, and the existing four-way reversing valve has a defect that after shutdown, an oil film can be easily cleaned by the refrigerating fluid so as to cause the lack of the lubricating oil and then cause that the piston is deadlocked. The piston type four-way reversing valve mainly consists of a main valve and a pilot valve, wherein the pilot valve is communicated with the cavity of the main valve through an air duct; the main valve comprises a valve body, a piston arranged in the valve body and two end covers arranged on the two ends of the valve body; four valve ports are arranged on the valve body, the piston is formed by connecting two components, which have I-shaped view patterns and are rotated to be vertical to each other, into a whole, a lubrication sleeve is arranged between the internal surface of the valve body and the piston, and the lubrication sleeve is fixedly connected with the valve body; through holes which correspond to valve ports and are communicated with the valve ports are arranged on the sleeve body of the lubrication sleeve, a plurality of oil holes are arranged on the internal surface of the sleeve body, and a solid lubricating material can be embedded in the oil holes; and the solid lubricating material without oil can lubricate the piston, the piston is ensure to move in the valve body flexibly and can not be deadlocked, and the service life is prolonged.
Description
Technical field
The invention belongs to the valve that changes the refrigeration working medium flow direction in a kind of refrigeration system, especially relevant with a kind of piston type four-way change-over valve.
Background technique
Big capacity four-way change-over valve generally is applied in the heat pump type air conditioner.Common big capacity piston type four-way change-over valve is made up of pilot valve and main valve, main valve comprises steel valve body, be positioned at the spheroidal graphite cast iron piston of valve body and be arranged at two end caps at valve body two ends, the valve body of main valve, piston and end cap are formed left and right two cavitys, pilot valve is communicated with the cavity of main valve by air pipe, be respectively arranged with valve on the air pipe, be provided with the venting gas appliance that to close between valve and the main valve cavity; Piston mainly utilizes the inner system's pressure reduction that exists of four-way change-over valve to carry out mobile working; shut down and ambient temperature when being lower than zero degree at four-way valve; reason owing to pressure reduction; liquid refrigerant is moved to low one section of pressure from high one section of pressure; then in the refrigerant migration process; oil film in the valve body easily cooled dose of cleaning tape from; cause piston under oil-free lubrication, to move; formed the dry friction of steel and cast iron materials; after using a period of time; piston will wear and tear in valve body and pull and stuck, makes the valve can't proper functioning.
Summary of the invention
Purpose of the present invention be exactly to overcome after the shutdown that aforementioned four-way change-over valve exists oil film easily cooled dose of cleaning tape provide a kind of and can guarantee the piston piston type four-way change-over valve flexibly that in valve body, moves from causing the defective that lacks lubricant oil and make seizure of piston.
For this reason, the present invention is by the following technical solutions: the piston type four-way change-over valve, mainly form by main valve and pilot valve, pilot valve is communicated with the cavity of main valve by air pipe, main valve comprises valve body, be arranged at piston and two end caps that are arranged at the valve body two ends in the valve body, four valve ports are set on the valve body, piston is I-shaped member rotation 90 degree that stagger by two view shapes and is connected as a single entity and constitutes, it is characterized in that: between described valve interior surface and the described piston lubricating sleeve is set, this lubricating sleeve is fixedlyed connected with valve body, the lubricating sleeve body is provided with through hole corresponding with described valve port and that be communicated with, and the body internal surface is disposed with a plurality of oily caves.
As to technique scheme replenish and perfect, the present invention also comprises following technical characteristics:
Described oily cave is a groove type, and oily acupuncture point is in lubricating sleeve body internal surface, and does not penetrate body.
Described oily cave can also be passing hole type, and the inside and outside surface of body is run through in oily cave.
Further, described oily cave oral area diamondwise also can be circular.
Described lubricating sleeve body main material is a copper.
As another kind of mode, described lubricating sleeve body is made up of two-layer diametrically from outside to inside, and first layer is the steel base layer, and the second layer is the copper base alloy layer, and first layer and second layer sintering are connected as a single entity, and described oily cave is arranged at copper base alloy layer internal surface.
Further, described lubricating sleeve body is rolled by a thin plate and forms, and is easy to manufacture.
Described lubricating sleeve body main material can also be cast iron.
Be embedded with solid lubricant in the described oily cave.
Described solid lubricant is a graphite.
Described solid lubricant can also be the sintering body of teflon and copper powder.
Use the present invention can reach following beneficial effect: by the lubricating sleeve that is embedded with solid lubricant is set between valve body and piston, also can be under no oily situation by solid lubricant to the piston lubricate, avoided producing dry friction between piston and the valve body, the assurance piston moves in valve body flexibly can be not stuck, increased the working life of four-way change-over valve.
Description of drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the lubricating sleeve master apparent direction sectional view of mode of execution one.
Fig. 5 is the lubricating sleeve left side apparent direction sectional view of mode of execution one.
Fig. 6 is the partial enlarged drawing at a place among Fig. 5.
Fig. 7 is the lubricating sleeve master apparent direction sectional view of mode of execution two.
Fig. 8 is the lubricating sleeve left side apparent direction sectional view of mode of execution two.
Fig. 9 is the lubricating sleeve master apparent direction sectional view of mode of execution three.
Figure 10 is the lubricating sleeve left side apparent direction sectional view of mode of execution three.
Figure 11 is the partial enlarged drawing at b place among Figure 10.
Each mode of execution same area mark is identical among the figure.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
Embodiment one: as Fig. 1～shown in Figure 6, the present invention mainly is made up of main valve and pilot valve 4, pilot valve 4 is communicated with the cavity of main valve by air pipe 3, main valve comprises valve body 1, be arranged at piston 7 and two end caps 2 that are arranged at the valve body two ends in the valve body, four valve ports 6 are set on the valve body 1, piston 7 is I-shaped member rotation 90 degree that stagger by two view shapes and is connected as a single entity and constitutes, between valve body 1 internal surface and the piston 7 lubricating sleeve 5 is set, the bobbin that the body 8 of lubricating sleeve 5 is made for copper-based alloy material, body 8 is fixedlyed connected with valve body 1, body 8 is provided with four through holes 9, these through holes 9 are suitable with valve port 6 diameters, corresponding and the connection in position, also be disposed with a plurality of oily caves 10 on the body, oily cave 10 for run through body 8 in, the rhombus through hole of outer surface.
Embodiment two: as Fig. 1～Fig. 3 and Fig. 7, shown in Figure 8, the present invention mainly is made up of main valve and pilot valve 4, pilot valve 4 is communicated with the cavity of main valve by air pipe 3, main valve comprises valve body 1, be arranged at piston 7 and two end caps 2 that are arranged at the valve body two ends in the valve body, four valve ports 6 are set on the valve body 1, piston 7 is I-shaped member rotation 90 degree that stagger by two view shapes and is connected as a single entity and constitutes, between valve body 1 internal surface and the piston 7 lubricating sleeve 5 is set, the bobbin that the body 8 of lubricating sleeve 5 is made for cast iron materials, body 8 is fixedlyed connected with valve body 1, body 8 is provided with four through holes 9, these through holes 9 are suitable with valve port 6 diameters, corresponding and the connection in position, also be disposed with a plurality of oily caves 10 on the body, oily cave 10 for run through body 8 in, the manhole of outer surface is embedded with solid lubricant graphite in the oily cave 10.Piston slides in lubricating sleeve cover intracoelomic cavity, and graphite also can have been avoided producing dry friction between piston and the valve body to the piston lubricate under no oily situation.
Embodiment three: as Fig. 1～Fig. 3 and Fig. 9～shown in Figure 11, the present invention mainly is made up of main valve and pilot valve 4, pilot valve 4 is communicated with the cavity of main valve by air pipe 3, main valve comprises valve body 1, be arranged at piston 7 and two end caps 2 that are arranged at the valve body two ends in the valve body, four valve ports 6 are set on the valve body 1, piston 7 is I-shaped member rotation 90 degree that stagger by two view shapes and is connected as a single entity and constitutes, between valve body 1 internal surface and the piston 7 lubricating sleeve 5 is set, the body 8 of lubricating sleeve 5 is rolled by the copper material thin plate and forms, body 8 is fixedlyed connected with valve body 1, body 8 is provided with four through holes 9, these through holes 9 are suitable with valve port 6 diameters, corresponding and the connection in position, also be disposed with a plurality of oily caves 10 on the body, oil cave 10 is the groove that is positioned at the internal surface of body 8 and does not penetrate body, groove oral area diamondwise is embedded with solid lubricant graphite in the oily cave 10.Piston slides in lubricating sleeve cover intracoelomic cavity, and graphite also can have been avoided producing dry friction between piston and the valve body to the piston lubricate under no oily situation.
Among the embodiment three, lubricating sleeve body 8 can also be made up of two-layer diametrically from outside to inside, and first layer is a steel base layer 11, and the second layer is a copper base alloy layer 12, and first layer and second layer sintering are connected as a single entity, and oily cave 10 is arranged at the internal surface of copper base alloy layer 12.
Solid lubricant in the foregoing description two and three can also be the sintering body of teflon and copper powder.
Claims (12)
1. piston type four-way change-over valve, mainly form by main valve and pilot valve (4), pilot valve (4) is communicated with the cavity of main valve by air pipe (3), main valve comprises valve body (1), be arranged at the piston (7) in the valve body (1) and be arranged at two end caps (2) at valve body two ends, four valve ports (6) are set on the valve body (1), piston (7) is I-shaped member rotation 90 degree that stagger by two view shapes and is connected as a single entity and constitutes, it is characterized in that: between described valve body (1) internal surface and the described piston (7) lubricating sleeve (5) is set, lubricating sleeve (8) is fixedlyed connected with valve body (1), lubricating sleeve body (8) is provided with through hole (9) corresponding with described valve port (6) and that be communicated with, and body (8) internal surface is disposed with a plurality of oily caves (10).
2. piston type four-way change-over valve according to claim 1 is characterized in that: be embedded with solid lubricant in the described oily cave (10).
3. piston type four-way change-over valve according to claim 2 is characterized in that: described solid lubricant is a graphite.
4. piston type four-way change-over valve according to claim 2 is characterized in that: described solid lubricant is the sintering body of teflon and copper powder.
5. piston type four-way change-over valve according to claim 1 and 2 is characterized in that: described oily cave (10) is a groove type, and oily acupuncture point is in lubricating sleeve body internal surface, and does not penetrate body.
6. piston type four-way change-over valve according to claim 1 and 2 is characterized in that: described oily cave (10) is a passing hole type, and the inside and outside surface of body is run through in oily cave.
7. piston type four-way change-over valve according to claim 1 and 2 is characterized in that: described oily cave (10) oral area diamondwise.
8. piston type four-way change-over valve according to claim 1 and 2 is characterized in that: described oily cave (10) oral area is circular.
9. piston type four-way change-over valve according to claim 1 and 2 is characterized in that: described lubricating sleeve body (8) is rolled by a thin plate and forms.
10. piston type four-way change-over valve according to claim 9 is characterized in that: described lubricating sleeve body (8) material is a copper base alloy.
11. piston type four-way change-over valve according to claim 9, it is characterized in that: described lubricating sleeve body (8) is made up of two-layer diametrically from outside to inside, first layer is steel base layer (11), the second layer is copper base alloy layer (12), first layer and second layer sintering are connected as a single entity, and described oily cave (10) is arranged at copper base alloy layer (12) internal surface.
12. piston type four-way change-over valve according to claim 1 and 2 is characterized in that: described lubricating sleeve body (8) main material is a cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101006919A CN102242814A (en) | 2011-04-21 | 2011-04-21 | Piston type four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101006919A CN102242814A (en) | 2011-04-21 | 2011-04-21 | Piston type four-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102242814A true CN102242814A (en) | 2011-11-16 |
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ID=44961001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101006919A Pending CN102242814A (en) | 2011-04-21 | 2011-04-21 | Piston type four-way reversing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102242814A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121390A (en) * | 2013-04-28 | 2014-10-29 | 浙江盾安机械有限公司 | Four-way valve |
| CN104121391A (en) * | 2013-04-28 | 2014-10-29 | 浙江盾安机械有限公司 | Four-way reversing valve |
| CN104676048A (en) * | 2013-04-28 | 2015-06-03 | 浙江盾安机械有限公司 | Four-way valve |
| CN106352116A (en) * | 2016-11-02 | 2017-01-25 | 东键飞能源科技(上海)有限公司 | Novel double-layered four-way reversing valve |
| WO2022042101A1 (en) * | 2020-08-26 | 2022-03-03 | 浙江盾安人工环境股份有限公司 | Four-way main valve, four-way reversing valve assembly, and air conditioning unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2623939Y (en) * | 2003-03-18 | 2004-07-07 | 嘉善长盛滑动轴承有限公司 | Solid lubricant embedded steel base copper alloy axle sleeve |
| CN200940633Y (en) * | 2006-04-20 | 2007-08-29 | 浙江双飞无油轴承有限公司 | Pressing tin bronze shaft sleeve with oil hole |
| CN200943729Y (en) * | 2006-09-08 | 2007-09-05 | 浙江盾安精工集团有限公司 | Four-way valve commutation impact structure improvement |
| CN201013758Y (en) * | 2007-03-13 | 2008-01-30 | 浙江双飞无油轴承有限公司 | Composite bearing with oil-hole mouth with rounded corner |
| CN101178124A (en) * | 2007-12-03 | 2008-05-14 | 周林 | High-lubricating low-friction piston |
| CN201080966Y (en) * | 2007-09-10 | 2008-07-02 | 浙江长盛滑动轴承有限公司 | Container harbor lifting machine dedicated self-lubricated bearing |
| CN202056379U (en) * | 2011-04-21 | 2011-11-30 | 浙江新三荣制冷有限公司 | Large-volume four-way reversing valve |
-
2011
- 2011-04-21 CN CN2011101006919A patent/CN102242814A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2623939Y (en) * | 2003-03-18 | 2004-07-07 | 嘉善长盛滑动轴承有限公司 | Solid lubricant embedded steel base copper alloy axle sleeve |
| CN200940633Y (en) * | 2006-04-20 | 2007-08-29 | 浙江双飞无油轴承有限公司 | Pressing tin bronze shaft sleeve with oil hole |
| CN200943729Y (en) * | 2006-09-08 | 2007-09-05 | 浙江盾安精工集团有限公司 | Four-way valve commutation impact structure improvement |
| CN201013758Y (en) * | 2007-03-13 | 2008-01-30 | 浙江双飞无油轴承有限公司 | Composite bearing with oil-hole mouth with rounded corner |
| CN201080966Y (en) * | 2007-09-10 | 2008-07-02 | 浙江长盛滑动轴承有限公司 | Container harbor lifting machine dedicated self-lubricated bearing |
| CN101178124A (en) * | 2007-12-03 | 2008-05-14 | 周林 | High-lubricating low-friction piston |
| CN202056379U (en) * | 2011-04-21 | 2011-11-30 | 浙江新三荣制冷有限公司 | Large-volume four-way reversing valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121390A (en) * | 2013-04-28 | 2014-10-29 | 浙江盾安机械有限公司 | Four-way valve |
| CN104121391A (en) * | 2013-04-28 | 2014-10-29 | 浙江盾安机械有限公司 | Four-way reversing valve |
| CN104676048A (en) * | 2013-04-28 | 2015-06-03 | 浙江盾安机械有限公司 | Four-way valve |
| CN104121390B (en) * | 2013-04-28 | 2018-05-15 | 浙江盾安机械有限公司 | A kind of four-way valve |
| CN104676048B (en) * | 2013-04-28 | 2018-10-09 | 浙江盾安机械有限公司 | A kind of four-way valve |
| CN106352116A (en) * | 2016-11-02 | 2017-01-25 | 东键飞能源科技(上海)有限公司 | Novel double-layered four-way reversing valve |
| CN106352116B (en) * | 2016-11-02 | 2018-07-13 | 东键飞能源科技(上海)有限公司 | A kind of novel double-layer four-way reversing valve |
| WO2022042101A1 (en) * | 2020-08-26 | 2022-03-03 | 浙江盾安人工环境股份有限公司 | Four-way main valve, four-way reversing valve assembly, and air conditioning unit |
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Application publication date: 20111116 |