CN102599819A - Pressure-relief return valve for coffee maker - Google Patents
Pressure-relief return valve for coffee maker Download PDFInfo
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- CN102599819A CN102599819A CN2012101055229A CN201210105522A CN102599819A CN 102599819 A CN102599819 A CN 102599819A CN 2012101055229 A CN2012101055229 A CN 2012101055229A CN 201210105522 A CN201210105522 A CN 201210105522A CN 102599819 A CN102599819 A CN 102599819A
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- coffee machine
- pressure
- positioning boss
- dynamic seal
- valve
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
- A47J31/461—Valves, e.g. drain valves
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
The invention discloses a pressure-relief return valve for a coffee maker, which comprises a valve body. A water inlet, a water outlet and at least one pressure-relief opening are arranged on the valve body, a movable sealing part which closes the pressure-relief openings during working of the coffee maker is arranged in the valve body, a small-inner-diameter via hole which leads the water inlet to be communicated with the water outlet so as to generate back pressure is arranged on the movable sealing part, a return part which leads the movable sealing part to slide along an inner cavity of the valve body to open the pressure-relief openings after the coffee maker stops is further arranged in the valve body, and a limiting structure which limits the slipping stroke of the movable sealing part is arranged in the valve body. The movable sealing part slips to realize communication between the water inlet and the water outlet and communication between the water outlet and the pressure-relief openings. The pressure-relief return valve is simple and convenient, is reliable in performance and low in production cost, and overcomes the shortcoming that the total cost of an existing coffee maker is greatly increased after a three-way electromagnetic valve is used.
Description
Technical field
The present invention relates to the household electrical appliances accessory, particularly a kind of coffee machine is used the pressure release return valve.
Background technology
Existing pressure-type coffee machine adopts the hydraulic type sealing, when making coffee, can produce very big pressure; Generally can adopt three-way magnetic valve to come releasing pressure automatically after having boiled coffee; But the price comparison of three-way magnetic valve is expensive, can improve the production cost of enterprise, reduces the profit of enterprise greatly.For example China national Department of Intellectual Property is at the utility model patent of Granted publication on the 26th January in 2011; Granted publication number is 201719074; This patent discloses a kind of relief valve device of coffee machine, includes valve body, valve gap, in valve body, is provided with water outlet valve pocket, water outlet spool; The outer face of axially displaceable water outlet spool offsets with valve gap inner face alternative and cooperates, and is provided with return spring between outlet valve in-core end face and the valve interior wall; The water outlet spool chamber is a hollow structure; In be provided with seal head, hollow screw; Seal head is inner small and outside big stepped, and offseting with the cascaded surface inwall of water outlet spool cooperates, and the smaller portions of sealing head are arranged with the back pressure spring; Screw is threaded with outlet valve in-core wall, and the elongated end of back pressure spring runs through screw and offsets with the screw inwall; The valve body of adjacent delivery port one side of pressure relief opening is a hierarchic structure, and described water outlet spool is provided with the cascaded surface that matches, and said pressure relief opening is positioned at the trip segment of water outlet spool.In the disclosed structure of this utility model patent; Realize opening or closing of relief hole through the slippage in valve body of water outlet spool, to water outlet spool and valve body cooperate requirement higher, and seal head is located at and moves with the water outlet spool in the water outlet spool; Sealing more cannot say for sure to demonstrate,prove; And when carrying out pressure release, promote all parts of valve body to move and need pressure greatly, pressure release can not be thorough.
Summary of the invention
Problem to be solved by this invention just provides a kind of coffee machine and uses the pressure release return valve, and operation principle is simple, and is easy to assembly, dependable performance, and greatly reduce production cost.
In order to solve the problems of the technologies described above; The present invention adopts following technical scheme: a kind of coffee machine is used the pressure release return valve; Comprise valve body; Valve body is provided with water inlet, delivery port and at least one pressure relief opening, it is characterized in that: be provided with the dynamic seal of in the coffee machine course of work, pressure relief opening being closed in the said valve body, said dynamic seal is provided with and makes water inlet be conducting to the little internal diameter via that delivery port produces back pressure; In valve body, also be provided with the answer part that dynamic seal is opened pressure relief opening along the body cavity slippage, be provided with the limiting structure of restraint seal slippage stroke in the valve body.
Further; Said limiting structure comprises and being located in the body cavity near first positioning boss of delivery port one end and second positioning boss that is located in the body cavity near water inlet one end; In the coffee machine course of work; Said dynamic seal is against on first positioning boss, and after coffee machine quit work, said dynamic seal was against on second positioning boss.
Further; Said dynamic seal is stepped, comprises near the enlarged diameter section of second positioning boss with near the reduced diameter section of first positioning boss, and said little internal diameter via is located on the reduced diameter section on the end near first positioning boss; In the coffee machine course of work; Enlarged diameter section is corresponding with relief hole and relief hole closed, and after coffee machine quit work, the corresponding relief hole that makes with relief hole of reduced diameter section was communicated with delivery port.
Further, said body cavity wall is provided with at least one with body cavity and extraneous side opening that is communicated with, and said side opening is located on the position that said enlarged diameter section can keep covering.Guarantee that at first enlarged diameter section is with the side opening good seal; Secondly have under the situation of pressure at body cavity, dynamic seal is inside and outside to have pressure differential with respect to atmosphere, on the body cavity wall, is provided with side opening; Therefore be applied on the dynamic seal with regard to having certain power; Our purpose is exactly to make the power that is applied on the dynamic seal vertical with the elastic force of replying part, so also is in effect, disturbed by external force in order to reduce to reply part, the reliability of increase relief valve.
Further, on the said dynamic seal near the end face corresponding matching of the end face of first positioning boss and first positioning boss and in the coffee machine course of work, fit.
Further, said answer part is a spring, has the annular gap between said first positioning boss and the body cavity, and an end of said spring is positioned on the dynamic seal, and the other end of spring is positioned in the annular gap.
Further, be provided with the check valve assembly of in the coffee machine course of work, opening and after coffee machine quits work, closing in the said water inlet.
Further; Said check valve assembly comprises and is connected and has the water supply connector of inlet opening with valve seal and be located at the seal head in the inlet opening; Be provided with the contraction mouth of diameter in the said inlet opening less than the seal head diameter; Said check valve assembly also comprises the elastic component that makes seal head keep pressing to the trend that contraction mouth closes contraction mouth, and an end of said elastic component is positioned on the seal head, and the other end of elastic component is positioned in the body cavity.
Further; Be provided with locating support in the said body cavity; Said locating support is fixed between water supply connector and the dynamic seal; Side near water supply connector on the locating support is provided with the location ring body that cooperates with the inlet opening, and the other end of said elastic component is realized being positioned in the body cavity through being positioned in the ring body of location, and the side near dynamic seal on the said locating support is provided with said second positioning boss.
Further, said locating support is provided with the central through hole that is communicated with inlet opening and little internal diameter via.
After adopting technique scheme; The present invention has following advantage: water inlet is communicated with delivery port; And the slippage that is communicated with all through a dynamic seal of delivery port and pressure relief opening realizes, and is simple and convenient, dependable performance; Low production cost has overcome and has adopted the deficiency that behind the three-way magnetic valve complete machine cost is significantly increased.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the structural representation of the present invention in the coffee machine course of work;
Fig. 3 is the structural representation of the present invention after coffee machine quits work.
The specific embodiment
An embodiment of the present invention as shown in Figure 1; A kind of coffee machine is used the pressure release return valve; Comprise valve body 1; Valve body is provided with water inlet 11, delivery port 12 and at least one pressure relief opening 13, is provided with the dynamic seal 2 of in the coffee machine course of work, pressure relief opening being closed in the said valve body, and said dynamic seal is provided with and makes water inlet be conducting to the little internal diameter via 21 that delivery port produces back pressure; In valve body, also be provided with the answer part 3 that dynamic seal is opened pressure relief opening along the body cavity slippage, be provided with the limiting structure of restraint seal slippage stroke in the valve body.
In the present embodiment; Said limiting structure comprises and being located in the body cavity 10 near first positioning boss 14 of delivery port one end and second positioning boss 71 that is located in the body cavity near water inlet one end; In the coffee machine course of work; Said dynamic seal is against on first positioning boss, and after coffee machine quit work, said dynamic seal was against on second positioning boss.Said dynamic seal is stepped; Comprise near the enlarged diameter section 22 of second positioning boss with near the reduced diameter section 23 of first positioning boss; Said little internal diameter via is located on the reduced diameter section on the end near first positioning boss, and in the coffee machine course of work, enlarged diameter section is corresponding with relief hole and relief hole closed; After coffee machine quit work, the corresponding relief hole that makes with relief hole of reduced diameter section was communicated with delivery port.In addition, said body cavity wall is provided with at least one with body cavity and extraneous side opening that is communicated with, and said side opening is located on the position that said enlarged diameter section can keep covering.
On the said dynamic seal near the end face corresponding matching of the end face of first positioning boss and first positioning boss and in the coffee machine course of work, fit; These two end faces are traditionally arranged to be the plane; Process more conveniently, also can be set to sphere, can play the effect that aligns automatically.In addition, said answer part is preferably spring, has annular gap 15 between said first positioning boss and the body cavity, and an end of said spring is positioned on the dynamic seal, and the other end of spring is positioned in the annular gap.
Be provided with the check valve assembly of in the coffee machine course of work, opening and after coffee machine quits work, closing in the said water inlet.Said check valve assembly comprises the water supply connector 4 that is connected and has inlet opening 41 with valve seal and is located at the seal head 5 in the inlet opening; Be provided with the contraction mouth 42 of diameter in the said inlet opening less than the seal head diameter; Said check valve assembly also comprises the elastic component 6 that makes seal head keep pressing to the trend that contraction mouth closes contraction mouth; One end of said elastic component is positioned on the seal head, and the other end of elastic component is positioned in the body cavity.
On this basis; Be provided with locating support 7 in the said body cavity; Said locating support is fixed between water supply connector and the dynamic seal; Side near water supply connector on the locating support is provided with the location ring body 72 that cooperates with the inlet opening, and the other end of said elastic component is realized being positioned in the body cavity through being positioned in the ring body of location.Side near dynamic seal on the said locating support is provided with said second positioning boss.Said locating support is provided with the central through hole 73 that is communicated with water inlet and little internal diameter via.Elastic component also is preferably spring.
In the present embodiment; Little internal diameter via can supply water when normally making coffee and pass through; And the elastic force that makes dynamic seal overcome the answer part through the back pressure thrust that little internal diameter via produces is against on first positioning boss; After stopping to make coffee, little internal diameter via makes dynamic seal pressure at two ends balance, and the elastic force of replying part makes dynamic seal move to second positioning boss.Here, pressure relief opening only is provided with one, and two, three or more pressure relief openings can certainly be set according to the needs of pressure release speed, and pressure relief opening can encircle and be located on the valve body, also can axially-aligned be arranged on the valve body.And dynamic seal can adopt rubber, plastics or metal to process; Low production cost; And being communicated with of water inlet and delivery port, and the slippage that is communicated with all through a dynamic seal of delivery port and pressure relief opening realizes, simple and convenient; Dependable performance has overcome and has adopted the deficiency that behind the three-way magnetic valve complete machine cost is significantly increased.
Specify operation principle of the present invention below in conjunction with Fig. 2 and Fig. 3.As shown in Figure 2, when normally making coffee, the water in the water tank arrives water supply connector through water pump; The thrust that produces when intake pressure will be washed seal head open greater than the screen resilience of elastic component, and current arrive dynamic seal; Because the little internal diameter via of dynamic seal is less; The water that receives high pressure through the time, suffered power can be greater than the active force of replying part, this moment, dynamic seal can be moved to delivery port along the direction of current; So that the enlarged diameter section of dynamic seal can be sealed pressure relief opening, and water inlet is communicated with delivery port; As shown in Figure 3, after coffee machine quits work, because water inlet end does not have intake pressure; Seal head receives the elastic force effect of elastic component and seals contraction mouth; Dynamic seal can be separated with first positioning boss after receiving the active force of replying part, and this moment, enlarged diameter section was removed pressure relief opening, and was separated by little internal diameter via between water inlet and the delivery port; Delivery port is communicated with pressure relief opening, and the pressure pressure relief opening in the coffee machine releases.
Except that above-mentioned preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of accompanying claims of the present invention.
Claims (10)
1. a coffee machine is used the pressure release return valve; Comprise valve body (1); Valve body is provided with water inlet (11), delivery port (12) and at least one pressure relief opening (13); It is characterized in that: be provided with the dynamic seal (2) of in the coffee machine course of work, pressure relief opening being closed in the said valve body; Said dynamic seal is provided with and makes water inlet be conducting to the little internal diameter via (21) that delivery port produces back pressure, in valve body, also is provided with the answer part (3) that dynamic seal is opened pressure relief opening along the body cavity slippage, is provided with the limiting structure of restraint seal slippage stroke in the valve body.
2. a kind of coffee machine according to claim 1 is used the pressure release return valve; It is characterized in that: said limiting structure comprises and is located in the body cavity (10) near first positioning boss (14) of delivery port one end and is located in the body cavity second positioning boss (71) near water inlet one end; In the coffee machine course of work; Said dynamic seal is against on first positioning boss, and after coffee machine quit work, said dynamic seal was against on second positioning boss.
3. a kind of coffee machine according to claim 2 is used the pressure release return valve; It is characterized in that: said dynamic seal is stepped; Comprise near the enlarged diameter section (22) of second positioning boss with near the reduced diameter section (23) of first positioning boss; Said little internal diameter via is located on the reduced diameter section on the end near first positioning boss, and in the coffee machine course of work, enlarged diameter section is corresponding with relief hole and relief hole closed; After coffee machine quit work, the corresponding relief hole that makes with relief hole of reduced diameter section was communicated with delivery port.
4. a kind of coffee machine according to claim 3 is used the pressure release return valve, it is characterized in that: said body cavity wall is provided with at least one with body cavity and extraneous side opening that is communicated with, and said side opening is located on the position that said enlarged diameter section can keep covering.
5. use the pressure release return valve according to claim 2 or 3 described a kind of coffee machines, it is characterized in that: on the said dynamic seal near the end face corresponding matching of the end face of first positioning boss and first positioning boss and in the coffee machine course of work, fit.
6. use the pressure release return valve according to claim 2 or 3 described a kind of coffee machines; It is characterized in that: said answer part is a spring; Has annular gap (15) between said first positioning boss and the body cavity; One end of said spring is positioned on the dynamic seal, and the other end of spring is positioned in the annular gap.
7. use the pressure release return valve according to claim 2 or 3 described a kind of coffee machines, it is characterized in that: be provided with the check valve assembly of in the coffee machine course of work, opening and after coffee machine quits work, closing in the said water inlet.
8. a kind of coffee machine according to claim 7 is used the pressure release return valve; It is characterized in that: said check valve assembly comprises the water supply connector (4) that is connected and has inlet opening (41) with valve seal and is located at the seal head (5) in the inlet opening; Be provided with the contraction mouth (42) of diameter in the said inlet opening less than the seal head diameter; Said check valve assembly also comprises the elastic component (6) that makes seal head keep pressing to the trend that contraction mouth closes contraction mouth; One end of said elastic component is positioned on the seal head, and the other end of elastic component is positioned in the body cavity.
9. a kind of coffee machine according to claim 8 is used the pressure release return valve; It is characterized in that: be provided with locating support (7) in the said body cavity; Said locating support is fixed between water supply connector and the dynamic seal; Side near water supply connector on the locating support is provided with the location ring body (72) that cooperates with the inlet opening; The other end of said elastic component is realized being positioned in the body cavity through being positioned in the ring body of location, and the side near dynamic seal on the said locating support is provided with said second positioning boss.
10. a kind of coffee machine according to claim 9 is used the pressure release return valve, it is characterized in that: said locating support is provided with the central through hole (73) that is communicated with water inlet and little internal diameter via.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101055229A CN102599819B (en) | 2012-04-11 | 2012-04-11 | Pressure-relief return valve for coffee maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101055229A CN102599819B (en) | 2012-04-11 | 2012-04-11 | Pressure-relief return valve for coffee maker |
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| Publication Number | Publication Date |
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| CN102599819A true CN102599819A (en) | 2012-07-25 |
| CN102599819B CN102599819B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101055229A Active CN102599819B (en) | 2012-04-11 | 2012-04-11 | Pressure-relief return valve for coffee maker |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349508A (en) * | 2013-07-06 | 2013-10-16 | 佛山市顺德区科锐玛电器有限公司 | Coffee machine protection valve |
| CN103479228A (en) * | 2013-09-18 | 2014-01-01 | 宁波全景电器技术有限公司 | Anti-negative-pressure water nozzle |
| WO2016125085A1 (en) * | 2015-02-04 | 2016-08-11 | Luigi Lavazza S.P.A. | Machine for preparing beverages, in particular espresso coffee, and valve assembly usable in such a machine |
| CN106837777A (en) * | 2016-12-06 | 2017-06-13 | 深圳星粒文化传播有限公司 | The overpressure protection apparatus of portable minisize high pressure coffee apparatus |
| CN106998953A (en) * | 2014-12-02 | 2017-08-01 | 路易吉拉瓦扎股份公司 | Machine for preparing beverage, especially concentrated coffee |
| CN107836999A (en) * | 2017-09-01 | 2018-03-27 | 宁波锦宇电器有限公司 | A kind of releasing pressure automatically air bleeding valve |
| CN110477752A (en) * | 2019-08-27 | 2019-11-22 | 广东亿龙电器科技有限公司 | A kind of auto extractive coffee apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4098156A1 (en) * | 2021-05-31 | 2022-12-07 | BSH Hausgeräte GmbH | Pressure relief valve of a coffee machine |
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| CN1965744A (en) * | 2005-11-18 | 2007-05-23 | 厦门灿坤实业股份有限公司 | Pressure release valve for coffee maker |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349508A (en) * | 2013-07-06 | 2013-10-16 | 佛山市顺德区科锐玛电器有限公司 | Coffee machine protection valve |
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| CN103479228A (en) * | 2013-09-18 | 2014-01-01 | 宁波全景电器技术有限公司 | Anti-negative-pressure water nozzle |
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| CN106998953A (en) * | 2014-12-02 | 2017-08-01 | 路易吉拉瓦扎股份公司 | Machine for preparing beverage, especially concentrated coffee |
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| WO2016125085A1 (en) * | 2015-02-04 | 2016-08-11 | Luigi Lavazza S.P.A. | Machine for preparing beverages, in particular espresso coffee, and valve assembly usable in such a machine |
| CN107405023A (en) * | 2015-02-04 | 2017-11-28 | 路易吉拉瓦扎股份公司 | Machine for the beverage of the particularly Italian concentrated coffee of preparation and the available valve module in such machine |
| CN107405023B (en) * | 2015-02-04 | 2019-12-17 | 路易吉拉瓦扎股份公司 | Machine for preparing beverages and valve assembly for use in a machine |
| CN106837777A (en) * | 2016-12-06 | 2017-06-13 | 深圳星粒文化传播有限公司 | The overpressure protection apparatus of portable minisize high pressure coffee apparatus |
| CN106837777B (en) * | 2016-12-06 | 2018-09-28 | 深圳星粒文化传播有限公司 | The overpressure protection apparatus of portable minisize high pressure coffee apparatus |
| CN107836999A (en) * | 2017-09-01 | 2018-03-27 | 宁波锦宇电器有限公司 | A kind of releasing pressure automatically air bleeding valve |
| CN107836999B (en) * | 2017-09-01 | 2023-11-07 | 宁波锦宇电器有限公司 | Automatic pressure relief exhaust valve |
| CN110477752A (en) * | 2019-08-27 | 2019-11-22 | 广东亿龙电器科技有限公司 | A kind of auto extractive coffee apparatus |
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| CN102599819B (en) | 2013-11-27 |
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Owner name: ZHEJIANG KUFEER ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: NINGBO YATE ELECTRICAL APPLIANCE CO., LTD. Effective date: 20130606 |
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Effective date of registration: 20130606 Address after: 315400, No. 23-25, luxuriant Road, Yuyao, Zhejiang, Ningbo Applicant after: Zhejiang Kufeer Electrical Appliance Co., Ltd. Address before: 315400, No. 23-25, flourishing road, Yuyao Economic Development Zone (South District), Ningbo, Zhejiang Applicant before: Ningbo YAT Electrical Appliance Co., Ltd. |
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Effective date of registration: 20220124 Address after: No.23-25, Maosheng Road, Yuyao Economic Development Zone (South District), Ningbo City, Zhejiang Province, 315403 Patentee after: NINGBO YAT ELECTRICAL APPLIANCE Co.,Ltd. Address before: 315400 No. 23-25, Maosheng Road, Yuyao City, Ningbo City, Zhejiang Province Patentee before: ZHEJIANG KUFEER ELECTRICAL APPLIANCE Co.,Ltd. |