CN102349803B - Four-way switching valve for coffee maker - Google Patents
Four-way switching valve for coffee maker Download PDFInfo
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- CN102349803B CN102349803B CN201110288340.5A CN201110288340A CN102349803B CN 102349803 B CN102349803 B CN 102349803B CN 201110288340 A CN201110288340 A CN 201110288340A CN 102349803 B CN102349803 B CN 102349803B
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Abstract
The invention relates to a four-way switching valve for a coffee maker, which is characterized in that the four-way switching valve comprises a valve casing, a pressure relief valve stem, a switching valve stem and a switching knob; a first passage, a second passage and a transition passage are arranged in the valve casing, and an inlet, a first outlet, a second outlet and a pressure relief opening are arranged on the valve casing; the pressure relief valve stem is arranged in the second passage, a pressure relief spring is also arranged in the second passage and the pressure relief opening is opened when the pressure relief valve stem moves backwards; the switching valve stem is arranged in the first passage and a spring is also arranged in the first passage; and the switching knob is rotatably arranged on the end surface of the valve casing, an end surface cam is arranged on the end surface of the switching knob and a pushing part is arranged at the external end of the switching knob. By using the switching knob to drive the pressure relief valve stem and the switching valve stem to move forwards and backwards, the inlet is selectively communicated with the first outlet, the second outlet and the pressure relief opening. Therefore, three working states are obtained. Specifically, the processes of water output for pressure relief, water output for coffee boiling and milk froth steaming can be respectively realized after the four-way switching valve is used on the coffee maker, the goal of realizing the multipurpose valve is achieved, the four-way switching valve is simple and light to operate and the cost is low.
Description
Technical field
The present invention relates to a kind of coffee machine four-way switching valve.
Background technology
Coffee machine extracts coffee pads for obtaining the hot water of certain pressure, need to set out water one-way valve in the exit of coffee machine water supply installation.A kind of outlet valve as disclosed in the patent No. outlet valve device > > that is the Chinese utility model patent < < coffee machine of ZL201020194608.X (notification number is CN201734539U).
Coffee machine all needs to carry out pressure release after having boiled coffee, to eliminate after having boiled coffee, extracts the pressure in chamber, therefore need to relief valve be set in the exit of coffee machine water supply installation.A kind of relief valve as disclosed in the patent No. pressure release valve device > > that is the Chinese utility model patent < < coffee machine of ZL201020206872.0 (notification number is CN201719074U).
Along with the development of coffee machine technology, some coffee machines have the function that brews milk foam, therefore its vaporium exit at coffee machine arranges steam valve, with the steam that vaporium is produced, derive and for infusing coffee and milk.A kind of steam valve as disclosed in the patent No. Chinese utility model patent < < steam converting valve of coffee machine > > that is ZL200920351478.3 (notification number is CN201641619U).
The coffee machine now also having is combined formation transfer valve by relief valve and outlet valve, to simplify valve arrangement, a kind of knockdown switch valve structure as disclosed in the patent No. Chinese utility model patent < < automatic valve in use for water supply apparatus of coffee maker > > that is ZL200620139960.7 (notification number is CN200979027Y).
The current rarely seen transfer valve that has Inlet and outlet water, pressure release simultaneously and beat steam function on the market, the electromagnetic valve structure that also just adopts having is realized, and magnetic valve cost of manufacture is very expensive, is difficult for promoting.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of coffee machine four-way switching valve that has Inlet and outlet water, pressure release simultaneously and beat steam function for above-mentioned prior art present situation, and it has advantages of simple and reasonable easy to operate.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of coffee machine four-way switching valve, it is characterized in that: comprise valve casing, in it, there is first passage and second channel, and the transition passage of connection first passage and second channel, on valve casing, have the import, the first outlet and the second outlet that are communicated with described first passage, and the pressure relief opening being communicated with second channel; Pressure release valve rod, be located in second channel and slippage before and after energy, the front end of pressure release valve rod exposes outside valve casing for driving, is also provided with the pressure release spring that the maintenance of pressure release valve rod is moved forward and close the trend of pressure relief opening in second channel, after pressure release valve rod, moves and opens pressure relief opening; Switch valve rod, be located in first passage and slippage before and after energy, in first passage, be also provided with and make to switch the spring that valve rod keeps reach trend, at switching valve rod, mediate under state, switch valve rod and block import and being communicated with that the first outlet and second exports simultaneously, switching under the state of valve rod reach, described import is only communicated with the first outlet, switching under the state moving after valve rod, described import is only communicated with the second outlet; Switch knob, is rotatably located on valve casing end face and with the leading section of aforementioned switching valve rod and closes on, and while having rotation on the end face of the switch knob of close switching valve rod, can drive and switch the edge cam moving after valve rod, and switch knob outer end has pushing part; In switch knob rotation, to middle state, conflicts and promotes with the pressure release valve rod exposing and move after pressure release valve rod in described pushing part, described switching valve rod of the while state that mediates; In switch knob rotation, to the state of a side or opposite side, the pressure release valve rod exposing is left in described pushing part, and described switching valve rod is in reach or retrude.
Only in above-mentioned first passage, be provided with can before and after the slide block of slippage, the rear end of slide block is supported and is established with the front end that switches valve rod, the outer end of slide block is provided in the cam ramp of described edge cam, and can slippage backward under the driving of cam ramp, the middle part inserting of switch knob rear end is provided with the first sealing ring in the shoulder hole of described first passage front end and on the interface of the two, the perimembranous of switch knob rear end forms the Elastic buckle that a plurality of circle spacings arrange, and this Elastic buckle snaps onto on the outer convex shoulder of described valve casing lateral wall.
Switch valve rod and be associated with switch knob by slide block, can simplify like this structure of switching valve rod, assembling is simpler simultaneously.Certainly switching valve rod also can directly be associated with switch knob.
The internal perisporium of above-mentioned first passage forms pre-and post perforative straight trough, on the lateral wall of described slide block, forms cutting, and described cutting is positioned at described straight trough energy front and back slippage, and the front end of cutting exposes outside straight trough and sets with the cam ramp of described edge cam.By cutting, coordinate with the guiding of straight trough, slide block can only front and back slippage be carried out and can not rotate, slide block can be positioned in the cam ramp of edge cam better like this, better guarantees that stable action switching can steadily be located.
Above-mentioned straight trough and cutting respectively have two, and the cam ramp of described edge cam has two, and these two cam ramp surround annular wall shape, and the top of these two cam ramp forms the limited block that exceeds described cam ramp.Because cutting has two, it is more steady that slide block is subject to the promotion of cam ramp.
As improvement, the front end face bottom of above-mentioned valve casing has three location pits, the bottom of described switch knob is provided with the backstay that is the dome shape matching with pit by end, this backstay is kept exposing the trend that the front end face with valve casing holds by support spring, at switch knob, rotate to middle state, the head of described backstay inserts the pit in the middle of being positioned at, in switch knob rotation, to the state of a side or opposite side, the head of described backstay inserts one of them respective dimple that is positioned at both sides.By the location of pit and backstay, can promote our switch knob and rotate to certain operating position, operating handle is better, plays in addition certain auxiliary positioning effect to switch knob.
For ease of assembling and die sinking, above-mentioned valve casing is comprised of main valve body, top connection and lower contact; Described top connection is fixed on the top of main valve body, the middle part inserting of the rear end of top connection is provided with the second sealing ring in the hole of upper part of the main valve body and on the interface of the two, described second channel is formed in main valve body and top connection, and described pressure relief opening is arranged in top connection; Described lower contact is fixed on the bottom of main valve body, the middle part inserting of the front end of lower contact is provided with the 3rd sealing ring in the hole of main valve body bottom and on the interface of the two, described first passage is formed in main valve body and lower contact, described import and the second outlet are arranged on main valve body, and described the first outlet is arranged in lower contact.Can first each valve rod be installed on main valve body like this, and then top connection and lower contact are fixed, just complete installation.
The front and rear part of above-mentioned pressure release valve rod is embedded with respectively the first front sealing ring and the first rear sealing ring, described pressure relief opening is between the first front sealing ring and the first rear sealing ring, between the inner hole wall of described the first front sealing ring and top connection, forming liquid sealing coordinates, under the state of pressure release valve rod reach, described the first rear sealing ring keeps liquid sealing to coordinate with the import of top connection, under the state moving after pressure release valve rod, the first rear sealing ring leaves the import of top connection.It is for pressure release valve rod is by moving forward and backward the concrete mode of opening or closing pressure relief opening that realizes.
The front and rear part of above-mentioned switching valve rod is embedded with respectively the second front sealing ring and the second rear sealing ring, and first passage has omoplate in annular, and in this annular, omoplate is between import and the second outlet; At switching valve rod, mediate under state, described the second front sealing ring forms liquid sealing with the inner peripheral surface of omoplate in annular and coordinates, and the second rear sealing ring forms liquid sealing with the inner hole wall of lower contact and coordinates; Switching under the state of valve rod reach, the second front sealing ring forms liquid sealing with the inner peripheral surface of omoplate in annular and coordinates, and the second rear sealing ring departs from forward the endoporus of lower contact; Switching under the state moving after valve rod, described the second front sealing ring departs from omoplate in annular backward, and the second rear sealing ring forms liquid sealing with the inner hole wall of lower contact and coordinates.It realizes import and the first outlet and the second outlet conducting whether concrete mode for switching valve rod by moving forward and backward, and valve rod, without offering concrete interface channel in switching valve rod inside, makes to switch stem structure more simple, easy to process.
Compared with prior art, the invention has the advantages that: by switch knob, drive pressure release valve rod and switch moving forward and backward of valve rod, thereby realize import optionally only with the first outlet, the second outlet and being communicated with of pressure relief opening, therefore it has three duties, specifically for just realizing respectively pressure release water outlet after coffee machine, make coffee water outlet and milk foam beat steam course, realizes multi-purpose valve, and simple to operate light, overall construction design is reasonable in addition, is mechanical valve structure again, and cost is low.
Accompanying drawing explanation
Fig. 1 is the perspective view (valve rod reach state is closed, switched to pressure release valve rod) of the embodiment of the present invention;
Fig. 2 is the structure cutaway view (valve rod reach state is closed, switched to pressure release valve rod) of the embodiment of the present invention;
Fig. 3 is the perspective view (valve rod intermediateness is opened, switched to pressure release valve rod) of the embodiment of the present invention;
Fig. 4 is the structure cutaway view (valve rod intermediateness is opened, switched to pressure release valve rod) of the embodiment of the present invention;
Fig. 5 is the perspective view (valve rod retrude is closed, switched to pressure release valve rod) of the embodiment of the present invention;
Fig. 6 is the structure cutaway view (valve rod retrude is closed, switched to pressure release valve rod) of the embodiment of the present invention;
Fig. 7 is the scheme of installation of slide block in the embodiment of the present invention;
Fig. 8 is the perspective view of switch knob in the embodiment of the present invention;
Fig. 9 is the perspective view of main valve body in the embodiment of the present invention;
Figure 10 is the perspective view of slide block in the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Fig. 1～10, it is a preferred embodiment of the present invention.
A coffee machine four-way switching valve, comprises
Valve casing 1, in it, there is first passage 2 and second channel 3, and the transition passage 4 of connection first passage 2 and second channel 3, on valve casing 1, have the import 111, first outlet the 131 and second outlet 112 that are communicated with first passage 2, and the pressure relief opening 121 being communicated with second channel 3.Valve casing 1 is comprised of main valve body 11, top connection 12 and lower contact 13, top connection 12 is fixed on the top of main valve body 11 by latch, the middle part inserting of the rear end of top connection 12 is provided with the second sealing ring 10b in the hole on main valve body 11 tops and on the interface of the two, second channel 3 is formed in main valve body 11 and top connection 12, and pressure relief opening 121 is arranged in top connection 12; Lower contact 13 is fixed on the bottom of main valve body 11 by latch, the middle part inserting of the front end of lower contact 13 is provided with the 3rd sealing ring 10c in the hole of main valve body 11 bottoms and on the interface of the two, first passage 2 is formed in main valve body 11 and lower contact 13, import 111 and the second outlet 112 are arranged on main valve body 11, and the first outlet 131 is arranged in lower contact 13.
Pressure release valve rod 5, be located in second channel 3 and slippage before and after energy, the front end of pressure release valve rod 5 exposes outside the top connection 12 of valve casing 1 for driving, in second channel 3, be also provided with the pressure release spring 53 that 5 maintenances of pressure release valve rod is moved forward and close the trend of pressure relief opening 121, after pressure release valve rod 5, move and open pressure relief opening 121; The front and rear part of pressure release valve rod 5 is embedded with respectively the first front sealing ring 51 and the first rear sealing ring 52, pressure relief opening 121 is between the first front sealing ring 51 and the first rear sealing ring 52, between the inner hole wall of the first front sealing ring 51 and top connection 12, forming liquid sealing coordinates, under the state of pressure release valve rod 5 reaches, the first rear sealing ring 52 keeps liquid sealing to coordinate with the import of top connection 12, under the state moving after pressure release valve rod 5, the first rear sealing ring 52 leaves the import of top connection 12.
Switch valve rod 6, be located in first passage 2 and slippage before and after energy, in first passage 2, be also provided with and make to switch the spring 63 that valve rod 6 keeps reach trend, the front and rear part of switching valve rod 6 is embedded with respectively the second front sealing ring 61 and the second rear sealing ring 62, first passage 2 has omoplate 22 in annular, and in this annular, omoplate 22 is between import 111 and the second outlet 112; At switching valve rod 6, mediate under state, the second front sealing ring 61 forms liquid sealing with the inner peripheral surface of omoplate 22 in annular and coordinates, the second rear sealing ring 62 coordinates with the inner hole wall formation liquid sealing of lower contact 13, at this moment switches valve rod 6 and blocks being communicated with of import 111 and first outlet the 131 and second outlet 112 simultaneously; Switching under the state of valve rod 6 reaches, the second front sealing ring 61 forms liquid sealing with the inner peripheral surface of omoplate 22 in annular and coordinates, and the second rear sealing ring 62 departs from forward the endoporus of lower contact 13, and at this moment import 111 is only communicated with the first outlet 131; Switching under the state moving after valve rod 6, the second front sealing ring 61 departs from backward the rear sealing ring 62 of omoplate 22, the second in annular and coordinates with the inner hole wall formation liquid sealing of lower contact 13, and at this moment import 111 is only communicated with the second outlet 112.
Switch knob 7, rotatably be located on valve casing 1 end face and with the leading section of aforementioned switching valve rod 6 and close on, the middle part inserting of switch knob 7 rear ends is provided with the first sealing ring 10a in the shoulder hole of described first passage 2 front ends and on the interface of the two, the perimembranous of switch knob 7 rear ends forms the Elastic buckle 73 that a plurality of circle spacings arrange, and this Elastic buckle 73 snaps onto on the outer convex shoulder 113 of valve body 11 lateral walls of valve casing 1; While thering is rotation on the end face of the switch knob 7 of close switching valve rod 6, can drive and switch the edge cam 71 moving after valve rod 6, edge cam 71 has two cam ramp 711, these two cam ramp 711 surround annular wall shape, the top of these two cam ramp 711 forms the limited block 712 that exceeds cam ramp 711, switch knob 7 outer ends have upwardly extending pushing part 72, as shown in Figure 8.
As shown in Fig. 7,9,1O, only in first passage 2, be provided with can before and after the slide block 8 of slippage, the internal perisporium at first passage 2 forms at least two pre-and post perforative straight troughs 21, on the lateral wall of slide block 8, form two cuttings 81, cutting 81 is positioned at straight trough 21 energy front and back slippage, the front end of cutting 81 exposes outside straight trough 21 and sets with the cam ramp 711 of edge cam 71, and can slippage backward under the driving of cam ramp 711, and the rear end of slide block 8 is supported and established with the front end that switches valve rod 6.
In switch knob 7 rotation, to middle state, conflict and promote with the pressure release valve rod 5 exposing and move after pressure release valve rod 5 in pushing part 72, and at this moment pressure release valve rod 5 is opened pressure relief opening 121, switches valve rod 6 state that mediates simultaneously, i.e. import 111 is only communicated with pressure relief opening.
At switch knob 7, rotate to the state of a side, the pressure release valve rod 5 exposing is left in pushing part 72, pressure release valve rod 5 is under the effect of pressure release spring 53, the first rear sealing ring 52 keeps liquid sealing to coordinate with the import of top connection 12, pressure relief opening is closed, and switches valve rod 6 in front shifting state, and the second front sealing ring 61 forms liquid sealing with the inner peripheral surface of omoplate 22 in annular and coordinates, the second rear sealing ring 62 departs from forward the endoporus of lower contact 13, and at this moment import 111 is only communicated with the first outlet 131.
At switch knob 7, rotate to the state of opposite side, the pressure release valve rod 5 exposing is left in pushing part 72, pressure release valve rod 5 is under the effect of pressure release spring 53, the first rear sealing ring 52 keeps liquid sealing to coordinate with the import of top connection 12, pressure relief opening is closed, and switches valve rod 6 in retrude, and the second front sealing ring 61 departs from omoplate 22 in annular backward, the second rear sealing ring 62 forms liquid sealing with the inner hole wall of lower contact 13 and coordinates, and at this moment import 111 is only communicated with the second outlet 112.
The front end face bottom of the main valve body 11 of valve casing 1 has three location pits 114, the bottom of switch knob 7 is provided with the backstay 9 that is the dome shape matching with pit 114 by end, this backstay 9 is kept exposing the trend that the front end face with valve casing 1 holds by support spring 91, at switch knob 7, rotate to middle state, the head of backstay 9 inserts the pit 114 in the middle of being positioned at, in switch knob 7 rotations, to the state of a side or opposite side, the head of backstay 9 inserts one of them respective dimple 114 that is positioned at both sides.
Operation principle and process that this four-way switching valve is applied on coffee machine are as follows:
While making coffee, as Fig. 1, shown in 2, switch knob 7 is gone to a side, pressure release valve rod 5 is under the effect of pressure release spring 53, the first rear sealing ring 52 keeps liquid sealing to coordinate with the import of top connection 12, pressure relief opening 121 is closed, conflict with the cutting 81 of slide block and the extreme lower position of the cam ramp 711 of edge cam of switching valve rod 6 conflicts, switch valve rod 6 under the effect of spring 63 in front shifting state, the second front sealing ring 61 forms liquid sealing with the inner peripheral surface of omoplate 22 in annular and coordinates, the second rear sealing ring 62 departs from forward the endoporus of lower contact 13, at this moment import 111 is only communicated with the first outlet 131, the hot water of making coffee flows into finally and flows out from the first outlet 131 from import 111, the work of making coffee.
Make coffee after end, as shown in Figure 3,4, switch knob 7 is gone to centre position, conflict and promote the resilient rear-moving that pressure release valve rod 5 overcomes pressure release spring 53 with the pressure release valve rod 5 exposing in pushing part 72, at this moment pressure release valve rod 5 is opened pressure relief opening 121, switch valve rod 6 state that mediates, i.e. import 111 is only communicated with pressure relief opening simultaneously, and unnecessary hot water flows into finally and discharges from pressure relief opening 121 through import 111.
Milk foam is beaten steam course, as Fig. 5, shown in 6, switch knob 7 is gone to opposite side, pressure release valve rod 5 is under the effect of pressure release spring 53, the first rear sealing ring 52 keeps liquid sealing to coordinate with the import of top connection 12, pressure relief opening 121 is closed, conflict with the cutting 81 of slide block and the extreme higher position of the cam ramp 711 of edge cam of switching valve rod 6 conflicts, therefore switching valve rod 6 moves after under the impetus of the edge cam 71 of switch knob 7, therefore switching under the state moving after valve rod 6, the second front sealing ring 61 departs from omoplate 22 in annular backward, the second rear sealing ring 62 forms liquid sealing with the inner hole wall of lower contact 13 and coordinates, at this moment import 111 is only communicated with the second outlet 112, steam enters finally and discharges from the second outlet 112 from import 111.
Claims (8)
1. a coffee machine four-way switching valve, is characterized in that: comprise
Valve casing (1), in it, there is first passage (2) and second channel (3), and the transition passage (4) of connection first passage (2) and second channel (3), on valve casing (1), have the import (111), the first outlet (131) and the second outlet (112) that are communicated with described first passage (2), and the pressure relief opening (121) being communicated with second channel (3);
Pressure release valve rod (5), be located in second channel (3) and slippage before and after energy, the front end of pressure release valve rod (5) exposes outside valve casing (1) for driving, in second channel (3), be also provided with the pressure release spring (53) that pressure release valve rod (5) maintenance is moved forward and close the trend of pressure relief opening (121), after pressure release valve rod (5), move and open pressure relief opening (121);
Switch valve rod (6), be located in first passage (2) and slippage before and after energy, in first passage (2), be also provided with and make to switch the spring (63) that valve rod (6) keeps reach trend, at switching valve rod (6), mediate under state, switching valve rod (6) is blocked being communicated with of import (111) and the first outlet (131) and the second outlet (112) simultaneously, switching under the state of valve rod (6) reach, described import (111) is only communicated with the first outlet (131), switching under the state moving after valve rod (6), described import (111) is only communicated with the second outlet (112),
Switch knob (7), rotatably be located on valve casing (1) end face and with the leading section of aforementioned switching valve rod (6) and close on, while having rotation on the end face of the switch knob (7) of close switching valve rod (6), can drive and switch the edge cam (71) moving after valve rod (6), switch knob (7) outer end has pushing part (72);
In switch knob (7) rotation, to middle state, described pushing part (72) are conflicted and are promoted with the pressure release valve rod (5) exposing and move after pressure release valve rod (5), simultaneously described switching valve rod (6) state that mediates; In switch knob (7) rotation, to the state of a side or opposite side, described pushing part (72) leave the pressure release valve rod (5) exposing, and described switching valve rod (6) is in reach or retrude.
2. coffee machine four-way switching valve according to claim 1, it is characterized in that: only in described first passage (2), be provided with can before and after the slide block (8) of slippage, the rear end of slide block (8) is supported and is established with the front end that switches valve rod (6), the outer end of slide block (8) is provided in the cam ramp (711) of described edge cam (71), and can slippage backward under the driving of cam ramp (711), the middle part inserting of switch knob (7) rear end is provided with the first sealing ring (10a) in the shoulder hole of described first passage (2) front end and on the interface of the two, the perimembranous of switch knob (7) rear end forms the Elastic buckle (73) that a plurality of circle spacings arrange, this Elastic buckle (73) snaps onto on the outer convex shoulder (113) of described valve casing (1) lateral wall.
3. coffee machine four-way switching valve according to claim 2, it is characterized in that: the internal perisporium of described first passage (2) forms pre-and post perforative straight trough (21), on the lateral wall of described slide block (8), form cutting (81), described cutting (81) is positioned at described straight trough (21) energy front and back slippage, and the front end of cutting (81) exposes outside straight trough (21) and sets with the cam ramp (711) of described edge cam (71).
4. coffee machine four-way switching valve according to claim 3, it is characterized in that: described straight trough (21) and cutting (81) respectively have two, the cam ramp of described edge cam (711) has two, these two cam ramp (711) surround annular wall shape, and the top of these two cam ramp (711) forms the limited block (712) that exceeds described cam ramp (711).
5. coffee machine four-way switching valve according to claim 1, it is characterized in that: the front end face bottom of described valve casing (1) has three location pits (114), the bottom of described switch knob (7) is provided with the backstay (9) that is the dome shape matching with pit (114) by end, this backstay (9) is kept exposing the trend that the front end face with valve casing (1) holds by support spring (91), at switch knob (7), rotate to middle state, the head of described backstay (9) inserts the pit (114) in the middle of being positioned at, at switch knob (7), rotate to the state of a side or opposite side, the head of described backstay (9) inserts one of them respective dimple (114) that is positioned at both sides.
6. according to coffee machine four-way switching valve described in arbitrary claim in claim 1～5, it is characterized in that: described valve casing (1) is comprised of main valve body (11), top connection (12) and lower contact (13); Described top connection (12) is fixed on the top of main valve body (11), the middle part inserting of the rear end of top connection (12) is provided with the second sealing ring (10b) in the hole on main valve body (11) top and on the interface of the two, described second channel (3) is formed in main valve body (11) and top connection (12), and described pressure relief opening (121) is arranged in top connection (12); Described lower contact (13) is fixed on the bottom of main valve body (11), the middle part inserting of the front end of lower contact (13) is provided with the 3rd sealing ring (10c) in the hole of main valve body (11) bottom and on the interface of the two, described first passage (2) is formed in main valve body (11) and lower contact (13), it is upper that described import (111) and the second outlet (112) are arranged on main valve body (11), and described the first outlet (131) is arranged in lower contact (13).
7. coffee machine four-way switching valve according to claim 6, it is characterized in that: the front and rear part of described pressure release valve rod (5) is embedded with respectively the first front sealing ring (51) and the first rear sealing ring (52), described pressure relief opening (121) is positioned between the first front sealing ring (51) and the first rear sealing ring (52), between the inner hole wall of described the first front sealing ring (51) and top connection (12), forming liquid sealing coordinates, under the state of pressure release valve rod (5) reach, described the first rear sealing ring (52) keeps liquid sealing to coordinate with the import of top connection (12), under the state moving after pressure release valve rod (5), the first rear sealing ring (52) leaves the import of top connection (12).
8. coffee machine four-way switching valve according to claim 6, it is characterized in that: the front and rear part of described switching valve rod (6) is embedded with respectively the second front sealing ring (61) and the second rear sealing ring (62), described first passage (2) has omoplate (22) in annular, and in this annular, omoplate (22) is positioned between import (111) and the second outlet (112); At switching valve rod (6), mediate under state, described the second front sealing ring (61) forms liquid sealing with the inner peripheral surface of omoplate (22) in annular and coordinates, and the second rear sealing ring (62) forms liquid sealing with the inner hole wall of lower contact (13) and coordinates; Switching under the state of valve rod (6) reach, described the second front sealing ring (61) forms liquid sealing with the inner peripheral surface of omoplate (22) in annular and coordinates, the endoporus that the second rear sealing ring (62) departs from forward lower contact (13); Switching under the state moving after valve rod (6), described the second front sealing ring (61) departs from omoplate (22) in annular backward, and the second rear sealing ring (62) forms liquid sealing with the inner hole wall of lower contact (13) and coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110288340.5A CN102349803B (en) | 2011-09-19 | 2011-09-19 | Four-way switching valve for coffee maker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110288340.5A CN102349803B (en) | 2011-09-19 | 2011-09-19 | Four-way switching valve for coffee maker |
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| Publication Number | Publication Date |
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| CN102349803A CN102349803A (en) | 2012-02-15 |
| CN102349803B true CN102349803B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110288340.5A Active CN102349803B (en) | 2011-09-19 | 2011-09-19 | Four-way switching valve for coffee maker |
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| CN103565278B (en) * | 2012-07-20 | 2016-05-25 | 胡剑彧 | A kind of pressure relief device of coffee machine |
| CN204120829U (en) * | 2014-09-28 | 2015-01-28 | 广东亿龙电器科技有限公司 | A kind of coffee machine |
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| CN105078243B (en) * | 2015-07-23 | 2018-05-29 | 广东新宝电器股份有限公司 | Coffee machine |
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| CN109027321A (en) * | 2018-08-23 | 2018-12-18 | 厦门英仕卫浴有限公司 | A kind of convenient laborsaving switching device |
| CN113958728B (en) * | 2020-07-21 | 2024-02-06 | 莱克电气绿能科技(苏州)有限公司 | Waterway switching mechanism, beverage brewing device and beverage brewing method |
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| CN201031975Y (en) * | 2007-05-25 | 2008-03-05 | 宁波三A集团电器有限公司 | Four-way change valve |
| CN201523992U (en) * | 2009-10-28 | 2010-07-14 | 刘志洪 | Coffee maker valve converting device |
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| CN102349803A (en) | 2012-02-15 |
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