CN203395265U - Four-way valve - Google Patents
Four-way valve Download PDFInfo
- Publication number
- CN203395265U CN203395265U CN201320503034.3U CN201320503034U CN203395265U CN 203395265 U CN203395265 U CN 203395265U CN 201320503034 U CN201320503034 U CN 201320503034U CN 203395265 U CN203395265 U CN 203395265U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- seat
- way valve
- switching
- 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
Links
Images
Landscapes
- Multiple-Way Valves (AREA)
Abstract
The utility model relates to a four-way valve which comprises a valve body and a valve core, wherein a valve cavity is formed in the valve body; the valve body comprises a first air inlet, a first switching port, an air outlet, a second switching port and a second air inlet sequentially arranged; the valve core is movably arranged in the valve cavity and comprises a valve rod and two valve plates arranged on the valve rod; the valve core has a first switching position and a second switching position; when the valve core is located in the first switching position, the two valve plates respectively lean against a first valve seat and a third valve seat and form a first sealing area; when the valve core is located in the second switching position, the two valve plates respectively lean against a second valve seat and a fourth valve seat and form a second sealing area; the first valve seat and/or the fourth valve seat are movably arranged in the valve cavity. According to the four-way valve provided by the utility model, the first and fourth valve seats and the two valve plates are simultaneously sealed by means of the pressure difference of both sides through the movably arranged first valve seat and/or fourth valve seat.
Description
Technical field
The utility model relates to field of air conditioning, particularly relates to a kind of four-way valve.
Background technique
Japanese documentation JP3262026B2 discloses a kind of four-way valve can be used in air-conditioning unit.Fig. 1 shows the structural representation of this patent documentation.
As shown in Figure 1, this four-way valve comprises path switching part 22 ' and valve driving force generating unit 21 ', in path switching part 22 ', has taken in valve 23 '.The direction that valve 23 ' is provided with the driving force producing from valve driving force generating unit 21 ' is extended and the axle 24 ' that forms and 2 valve bodies 25 ' and 26 ' configuring at regular intervals along the axis of axle 24 '.The piston 27 ' that is contained in axle 24 ' cardinal extremity and the cylinder 28 ' that can carry out slide displacement according to pilot pressure in valve driving force generating unit 21 ', have been comprised.Between the outer circumferential face of piston 27 ' and the inner peripheral surface of cylinder 28 ', by sealing cap 29 ', carry out slidably airtight sealing.
Path switching part 22 ' is provided with suction port 30 ', 2 conversions mouthful 31 ' and 32 ' and discharge opening 33 '.Suction port 30 ' is communicated with middle chamber 34 '.Conversion mouthful 31 ' and 32 ' is communicated with separately with the chamber 35 ', 36 ' of centre of axial direction both sides that is located at the axle 24 ' of central chamber 34 '.Discharge opening 33 ' be located at the chamber 37 ' of cardinal extremity of axial direction terminal side of axle 24 ' and the chamber 38’ both sides that are located at the top of tip side and be communicated with.Insert the periphery of having led to the chamber 37 ' of cardinal extremity and the axle 24 ' of the partition part between cylinder 28 ', the airtight sealing that carries out slidably displacement by sealing cap 39 '.
In the path that the chamber 38 ' on the chamber 37’Ji top of cardinal extremity is communicated with discharge opening 33 ', inserted safety check 40 '.Cylinder 28’ two ends are communicated with separately with pilot port.2 conversions mouthful 31 ', 32 ' and discharge opening 33 ' configuring in same virtual plane roughly.Suction port 30 ' configures in vertical direction with respect to this virtual plane.
As shown in Figure 1, in this four-way valve, be provided with four valve seats from left to right.When piston 27 ' moves to the right-hand member of cylinder 28 ', valve body 25 ' and 26 ' contacts with the 3rd shown in Fig. 1 and the 4th valve seat respectively, thereby suction port 30 ' is communicated with conversion mouth 32 ', and discharge opening 33 ' is communicated with conversion mouth 31 '.Otherwise when piston 27 ' moves to the left end of cylinder 28 ', valve body 25 ' and 26 ' contacts with first and second valve seat shown in Fig. 1 respectively, thereby suction port 30 ' and conversion mouthful 32 ' is communicated with, discharge opening 33 ' with change mouth 33 ' and be communicated with.
Four-way valve shown in Fig. 1, when work, when its valve body 25 ' and 26 ' contacts sealing with corresponding two valve seats, can produce two contact sealings.Yet when one of them contact sealing, another is just difficult to guarantee contact and sealing.
Model utility content
The purpose of this utility model is to provide a kind of four-way valve, and to solve in prior art in two contact sealings, one of them is difficult to the problem of sealing.
For solving the problems of the technologies described above, as first aspect of the present utility model, a kind of four-way valve is provided, comprise: valve body, its inner valve pocket that forms, valve body comprises and sets gradually the first suction port, the first switching port, air outlet, the second switching port and the second suction port, and valve body also comprises at the first valve seat between the first suction port and the first switching port, at the second valve seat, air outlet between the first switching port and air outlet and the 3rd valve seat between the second switching port and the 4th valve seat between the second switching port and the second suction port; Spool, is arranged in valve pocket actively, and spool comprises valve rod and be arranged on two valve plates on valve rod, and spool has the first switching position and the second switching position; When spool is positioned at the first switching position, two valve plates are respectively with the first valve seat and the 3rd valve seat butt and form the first sealing area; When spool is positioned at the second switching position, two valve plates are respectively with the second valve seat and the 4th valve seat butt and form the second sealing area; The first valve seat and/or the 4th valve seat are arranged in valve pocket actively.
Further, Spielpassung between the first valve seat and/or the second valve seat and valve body.
Further, form the first activity space in valve body, the first valve seat is arranged in the first activity space actively.
Further, four-way valve also comprises: driving element, is connected with spool; Insert in valve pocket one end of driving element, is formed with stepped part in valve pocket, forms the first activity space between one end of driving element and stepped part.
Further, four-way valve also comprises: the first elastic element, is arranged in the first activity space, and is positioned at the side away from the second valve seat of the first valve seat.
Further, form the second activity space in valve body, the 4th valve seat is arranged in the second activity space actively.
Further, four-way valve also comprises: the second elastic element, is arranged in the second activity space, and is positioned at the side away from the 3rd valve seat of the 4th valve seat.
Further, the second valve seat and/or the 3rd valve seat and valve body are one-body molded.
Further, the first valve seat and/or the displacement distance of the 4th valve seat in valve pocket are 2-5 millimeters.
Further, valve body adopts tubing welded structure.
The first valve seat that the utility model arranges by activity and/or the 4th valve seat, utilize the pressure difference of its both sides, realized contacting and sealing between the first valve seat and/or the 4th valve seat and corresponding valve plate, when having reached the first valve seat and the 4th valve seat and two valve plates, sealing, has feature simple in structure, cost is low.
Accompanying drawing explanation
Fig. 1 has schematically shown the structural representation of a kind of four-way valve of the prior art.
Fig. 2 has schematically shown the sectional view of the four-way valve in the utility model when being positioned at the first switching position;
Fig. 3 has schematically shown the sectional view of the four-way valve in the utility model when being positioned at the second switching position;
Fig. 4 has schematically shown the stereogram of four-way valve of the present utility model; And
Fig. 5 schematically shown for show matching relationship between elastic element and the first valve seat partial structurtes schematic diagram.
Reference character in figure: 10, valve body; 11, the first suction port; 12, the first switching port; 13, air outlet; 14, the second switching port; 15, the second suction port; 16, the first valve seat; 17, the second valve seat; 18, the 3rd valve seat; 19, the 4th valve seat; 20, spool; 21, valve rod; 22, valve plate; 30, driving element; 31, cylinder body; 32, piston; 40, the first elastic element.
Embodiment
Below embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, please refer to Fig. 2 to Fig. 4, a kind of four-way valve is provided, comprise: valve body 10, its inner valve pocket that forms, valve body 10 comprises and sets gradually the first suction port 11, the first switching port 12, air outlet 13, the second switching port 14 and the second suction port 15, valve body also comprises the first valve seat 16 between the first suction port 11 and the first switching port 12, the second valve seat 17 between the first switching port 12He air outlet 13, the 3rd valve seat 18 between air outlet 13 and the second switching port 14, and the 4th valve seat 19 between the second switching port 14 and the second suction port 15, spool 20, is arranged in valve pocket actively, and spool 20 comprises valve rod 21 and be arranged on two valve plates 22 on valve rod 21, and spool 20 has the first switching position and the second switching position, when spool 20 is positioned at the first switching position, two valve plates 22 are respectively with the first valve seat 16 and the 3rd valve seat 18 butts and form the first sealing area, when spool 20 is positioned at the second switching position, two valve plates 22 are respectively with the second valve seat 17 and the 4th valve seat 19 butts and form the second sealing area.Further, the first valve seat 16 of the four-way valve in the utility model and/or the 4th valve seat 19 are arranged in valve pocket actively.Preferably, the first valve seat 16 and/or the 4th valve seat 19 can be ring-types.
Schematic diagram when Fig. 2 shows four-way valve in the utility model and is positioned at the first switching position.As shown in Figure 2, the four-way valve in the utility model is positioned at valve plate 22 and the 3rd valve seat 18 butts the sealing on the first switching position Shi，Qi right side, and 22 of the valve plates in its left side correspondingly move to the first valve seat 16 places.Under desirable state, the valve plate 22 in left side can contact and realize sealing with the first valve seat 16 just.Yet, due to reasons such as processing, wearing and tearing, often cause and between the two, have certain interval, thereby make cannot realize normal sealing between the two.
In order to address this problem, the four-way valve in the utility model is arranged on the first valve seat 16 in valve pocket actively.Like this, when four-way valve is during in working state shown in Fig. 2, because the pressure of the first suction port 11 is greater than the pressure in the first switching port 12, therefore,, under the effect of this pressure difference, the first valve seat 16 can be to the direction motion of valve plate 22, and final and these valve plate 22 butts, thereby realize sealing.
Please refer to Fig. 3, schematic diagram when it shows four-way valve and is positioned at the second switching position.As shown in Figure 3, when four-way valve is during in working state shown in Fig. 3, because the pressure of the second suction port 15 is greater than the pressure in the second switching port 14, therefore,, under the effect of this pressure difference, the 4th valve seat 19 can be to the direction motion of valve plate 22, and final and these valve plate 22 butts, thereby realize sealing.
Visible, the first valve seat 16 that the utility model arranges by activity and/or the 4th valve seat 19, utilize the pressure difference of its both sides, realized contacting and sealing between the first valve seat 16 and/or the 4th valve seat 19 and corresponding valve plate 22, sealing when having reached the first valve seat 16 and the 4th valve seat 19 and two valve plates 22, has feature simple in structure, cost is low.
Preferably, in one embodiment, Spielpassung between the first valve seat 16 and/or the second valve seat 17 and valve body 10, can certainly coordinate by Sealing.For example, when not high to seal request, can adopt the mode of Spielpassung; When high to seal request, can adopt the mode of Sealing (such as seal ring etc.) to coordinate.
Preferably, interior formation the first activity space of valve body 10, the first valve seat 16 is arranged in the first activity space actively.Preferably, interior formation the second activity space of valve body 10, the 4th valve seat 19 is arranged in the second activity space actively.Especially, the first activity space and the second activity space are arranged on the groove in valve body, and it is for restriction.The sphere of activities of the first valve seat 16 and/or the 4th valve seat 19.
Preferably, the first valve seat 16 and/or the displacement distance of the 4th valve seat 19 in valve pocket are 2-5 millimeters.Obviously, the displacement distance of the first valve seat 16 and/or the 4th valve seat 19 can be also other value.Correspondingly, the first activity space and the width of the second activity space in valve core movement direction can the displacement distance in valve pocket arrange accordingly with the first valve seat 16 and/or the 4th valve seat 19, for example, also can be set to 2-5 millimeter.
Preferably, four-way valve also comprises: driving element 30, is connected with spool 20; Insert in valve pocket driving element 30 one end, is formed with stepped part in valve pocket, forms the first activity space between driving element 30 one end and stepped part.For example, driving element 30 can be cylinder, and it can adopt the principle identical with JP3262026B2 to drive.Like this, one end that is positioned at valve pocket inside of driving element 30 directly limits the first valve seat 16 movement position to the left, in case backstop is lived the first suction port 11, meanwhile, stepped part can be used to limit the first valve seat 16 movement position to the right.
Further, because directly insert in valve pocket driving element 30 one end, and directly coordinate with the opening of valve body centre, thereby, the centering of spool can be improved.Correspondingly, in the disclosed four-way valve of JP3262026B2, it need to pass through the trisome combination between piston 27 ', cylinder 28 ' and sealing cap 39 ', could realize centering.By contrast, the utility model only directly coordinates with two bodies between valve pocket by driving element 30, thereby centering of the present utility model is better.
Preferably, please refer to Fig. 5, four-way valve also comprises: the first elastic element 40, is arranged in the first activity space, and is positioned at the side away from the second valve seat 17 of the first valve seat 16.For example, the first elastic element 40 can be corrugated gasket or resilient pad etc.Utilize the first elastic element 40, can provide additional elastic force to the first valve seat 16, under the effect of this elastic force, can further guarantee reliable contact the between the first valve seat 16 and valve plate 22.Especially, the first elastic element 40 can be arranged between above-mentioned one end and the first valve seat 16 of driving element 30.
Preferably, four-way valve also comprises: the second elastic element, is arranged in the second activity space, and is positioned at the side away from the 3rd valve seat 18 of the 4th valve seat 19.For example, the second elastic element can be corrugated gasket or resilient pad etc.Utilize the second elastic element, can provide additional elastic force to the 4th valve seat 19, under the effect of this elastic force, can further guarantee reliable contact the between the 4th valve seat 19 and valve plate 22.
Preferably, driving element 30 comprises cylinder body 31 and is arranged on the piston 32 in cylinder body 31, and valve rod 21 is connected with piston 32.When the controlled and side-to-side movement of piston 32, actuatable valve core and on valve plate 22 correspondingly move, thereby realize, switch.
Preferably, the second valve seat 17 and/or the 3rd valve seat 18 are one-body molded with valve body 10, so that processing, obviously, also can be by the second valve seat 17 and the 3rd valve seat 18 to be arranged on the relevant position of valve pocket with the first valve seat 16 and the similar manner of the 4th valve seat 19.Preferably, the first valve seat 16 and the 4th valve seat 19 are removably mounted in valve pocket, particularly, are correspondingly arranged in the first activity space and the second activity space, so that the installation of spool.
Preferably, valve body 10 can adopt tubing welded structure, for example, can adopt the tubing that comprises 5 mouths to be welded, and compares the cast structure using in JP3262026B2, has lower cost.
Below, in conjunction with Fig. 2 and Fig. 3, the handoff procedure of the four-way valve in the utility model is elaborated.
During installation, the first suction port 11 of the four-way valve in the utility model and the second suction port 15 are all connected ，Qi air outlet 13 and are connected with the suction port of compressor with the air outlet of compressor.
When be positioned at shown in Fig. 2 state time, the gas of compressor output enters valve pocket by the second suction port 15, flows to the suction port of compressor through the second switching port 14 and the first switching port 12Hou，You air outlet 13.
When be positioned at shown in Fig. 3 state time, the gas of compressor output enters valve pocket by the first suction port 11, flows to the suction port of compressor through the first switching port 12 and the second switching port 14Hou，You air outlet 13.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a four-way valve, comprising:
Valve body (10), its inner valve pocket that forms, described valve body (10) comprises and sets gradually the first suction port (11), the first switching port (12), air outlet (13), the second switching port (14) and the second suction port (15), described valve body also comprises the first valve seat (16) being positioned between described the first suction port (11) and described the first switching port (12), be positioned at the second valve seat (17) between described the first switching port (12) and described air outlet (13), be positioned at the 3rd valve seat (18) between described air outlet (13) and described the second switching port (14), and be positioned at the 4th valve seat (19) between described the second switching port (14) and described the second suction port (15),
Spool (20), is arranged in described valve pocket actively, and described spool (20) comprises valve rod (21) and be arranged on two valve plates (22) on described valve rod (21), and described spool (20) has the first switching position and the second switching position; When described spool (20) is positioned at described the first switching position, described two valve plates (22) are respectively with described the first valve seat (16) and described the 3rd valve seat (18) butt and form the first sealing area; When described spool (20) is positioned at described the second switching position, described two valve plates (22) are respectively with described the second valve seat (17) and described the 4th valve seat (19) butt and form the second sealing area;
It is characterized in that,
Described the first valve seat (16) and/or described the 4th valve seat (19) are arranged in described valve pocket actively.
2. four-way valve according to claim 1, is characterized in that, Spielpassung between described the first valve seat (16) and/or described the second valve seat (17) and described valve body (10).
3. four-way valve according to claim 1, is characterized in that, forms the first activity space in described valve body (10), and described the first valve seat (16) is arranged in described the first activity space actively.
4. four-way valve according to claim 3, is characterized in that, described four-way valve also comprises:
Driving element (30), is connected with described spool (20);
Insert in described valve pocket one end of described driving element (30), in described valve pocket, is formed with stepped part, forms described the first activity space between described one end of described driving element (30) and described stepped part.
5. four-way valve according to claim 3, is characterized in that, described four-way valve also comprises:
The first elastic element (40), is arranged in described the first activity space, and is positioned at the side away from described the second valve seat (17) of described the first valve seat (16).
6. four-way valve according to claim 1, is characterized in that, forms the second activity space in described valve body (10), and described the 4th valve seat (19) is arranged in described the second activity space actively.
7. four-way valve according to claim 6, is characterized in that, described four-way valve also comprises:
The second elastic element, is arranged in described the second activity space, and is positioned at the side away from described the 3rd valve seat (18) of described the 4th valve seat (19).
8. four-way valve according to claim 1, is characterized in that, described the second valve seat (17) and/or described the 3rd valve seat (18) are one-body molded with described valve body (10).
9. four-way valve according to claim 1, is characterized in that, described the first valve seat (16) and/or the displacement distance of described the 4th valve seat (19) in described valve pocket are 2-5 millimeters.
10. four-way valve according to claim 1, is characterized in that, described valve body (10) adopts tubing welded structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503034.3U CN203395265U (en) | 2013-08-16 | 2013-08-16 | Four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503034.3U CN203395265U (en) | 2013-08-16 | 2013-08-16 | Four-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395265U true CN203395265U (en) | 2014-01-15 |
Family
ID=49906798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503034.3U Expired - Lifetime CN203395265U (en) | 2013-08-16 | 2013-08-16 | Four-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315198A (en) * | 2014-08-19 | 2015-01-28 | 干平 | Air inlet valve and energy-saving air inlet system |
| CN104373627A (en) * | 2013-08-16 | 2015-02-25 | 浙江盾安人工环境股份有限公司 | Four-way valve |
-
2013
- 2013-08-16 CN CN201320503034.3U patent/CN203395265U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373627A (en) * | 2013-08-16 | 2015-02-25 | 浙江盾安人工环境股份有限公司 | Four-way valve |
| CN104315198A (en) * | 2014-08-19 | 2015-01-28 | 干平 | Air inlet valve and energy-saving air inlet system |
| CN104315198B (en) * | 2014-08-19 | 2017-01-11 | 干平 | Air inlet valve and energy-saving air inlet system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104373627A (en) | Four-way valve | |
| CN203395265U (en) | Four-way valve | |
| CN104344010A (en) | Electromagnetic flow reversing valve | |
| CN203906980U (en) | Air-control two-way lock valve | |
| CN204284530U (en) | Two-position five-way double gas control valve | |
| CN201991867U (en) | Hard dustproof cylinder | |
| CN203655787U (en) | Travel limiting valve for dumper | |
| CN206054807U (en) | Two position-5 way valve of gas control | |
| CN203906425U (en) | Air-control three-way reversing valve | |
| CN203442207U (en) | Electromagnetic flow reversing valve | |
| CN208457415U (en) | A kind of multidirectional adapter of pipe fitting for nitrogen gas spring sealing pipe-line system | |
| CN104373628A (en) | Four-way valve | |
| CN203718025U (en) | Air disconnection block valve | |
| CN203627910U (en) | Lever-type switch changeover valve | |
| CN103994265A (en) | Novel two-way locking valve | |
| CN101943276B (en) | Combined air valve | |
| CN203488781U (en) | Four-way valve | |
| CN104235464A (en) | Switch valve | |
| CN203784180U (en) | Telescoping mechanism of gas spring | |
| CN103994114A (en) | Novel three-way reversing valve | |
| CN202441908U (en) | Thin-type vacuum seal connecting valve device | |
| CN203115175U (en) | Device rapidly processing and checking abnormality of valve block | |
| CN104121248A (en) | Thin cylinder | |
| CN203477312U (en) | Sealing structure of energy accumulator of numerical control waterjet cutting machine | |
| CN203336025U (en) | Self-locking quick connector device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |