CN103300735B - A kind of extraction parts of coffee machine - Google Patents

A kind of extraction parts of coffee machine Download PDF

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Publication number
CN103300735B
CN103300735B CN201310207343.0A CN201310207343A CN103300735B CN 103300735 B CN103300735 B CN 103300735B CN 201310207343 A CN201310207343 A CN 201310207343A CN 103300735 B CN103300735 B CN 103300735B
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inner housing
cavity
face
extraction parts
coffee machine
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CN201310207343.0A
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CN103300735A (en
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景昱东
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Ningbo Quanjing Electric Technology Co Ltd
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Ningbo Quanjing Electric Technology Co Ltd
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Abstract

The present invention relates to a kind of extraction parts of coffee machine, include body, it is characterized in that: body is made up of shell body and inner housing, intake tunnel shell body having cavity and communicate with this cavity, inner housing has the exhalant canal running through inner housing front end face, check valve assembly is provided with in this exhalant canal, inner housing constrains in the cavity interior also energy front and back slippage of shell body, there is free gap between the rear end face of inner housing and the bottom surface of cavity, between the periphery of inner housing and the inwall of described cavity, be provided with sealing ring.This extraction parts not only rely on the coupling mechanism force of drives structure to realize sealing, also carry out auxiliary propulsion sealing by heat hydraulic pressure used during extraction, during extraction, high-pressure water heating enters between the rear end face of inner housing and the bottom surface of cavity exists free gap, inner housing reach can be promoted and compress another one extraction parts or coffee pads, guarantee that extraction chamber forms effective sealing.

Description

A kind of extraction parts of coffee machine
Technical field
The present invention relates to a kind of extraction parts of coffee machine, extraction parts are in order to form the extraction chamber of accommodating coffee pads.
Background technology
Coffee machine is the one in beverage pouring and boiling device, and the beverage pouring and boiling direction of coffee machine mainly contains level and vertical both direction.The coffee machine that horizontal direction brews mainly includes the first extraction parts and the second extraction parts, wherein the first extraction parts are fixed on the front end in support, second extraction parts are arranged on the rear end in support, and can slippage before and after relative first extraction parts, the second extraction parts slippage to first extract parts contact after between the two seal closure extract chamber to be formed to seal.
The coffee machine of aforementioned type can be divided into again two kinds of versions, and a kind of is that the cavity that can hold coffee pads is located on the second extraction parts, and the first extraction parts are can relative to the plate of the second extraction parts movement; Another kind is that the cavity that can hold coffee pads is located on moveable first extraction parts, and the second extraction parts are plate.Sealing effectiveness after two extraction parts close up is an important indicator of inspection coffee machine quality, the extraction parts of existing plate type are fixed structure, like this after two extraction parts close up, hard contact between two extraction parts, sealing between two extraction parts compresses by lever actuated structure and forms sealing, make two extraction parts good seals, to extraction parts itself and the Stroke Control precision extracting parts movement, and the requirement of the self-lock force of drives structure is high, sealing in addition as two extraction parts only realizes by the self-lock force of drives structure, in extraction coffee process, if the coupling mechanism force between two extraction parts is inadequate, hot water presses through greatly, sealing surface between two extraction parts may produce gap under hydraulic pressure effect, drainage is easily caused to occur.
Summary of the invention
Technical problem to be solved by this invention is the extraction parts providing the better coffee machine of a kind of sealing effectiveness for above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of extraction parts of coffee machine, include body, it is characterized in that: described body is made up of shell body and inner housing, the intake tunnel described shell body having cavity and communicate with this cavity, described inner housing has the exhalant canal running through inner housing front end face, check valve assembly is provided with in this exhalant canal, described inner housing constrains in the cavity interior also energy front and back slippage of shell body, free gap is there is between the rear end face of inner housing and the bottom surface of cavity, sealing ring is provided with between the periphery of inner housing and the inwall of described cavity.
After hydraulic pressure sheds, as do not arranged spring, inner housing can move some distances after opposite shell body,, may drainage be there is, after coffee machine uses for a long time in addition in the sealing effectiveness in the extraction chamber that impact has extraction parts to form, quality of fit can be there is reduce, also may there is drainage.Further improvement, after above-mentioned inner housing and be provided with the spring making inner housing keep reach trend between the bottom surface of described cavity.Arrange spring has compensation sealing effect to inner housing, when extraction parts lose hydraulic pressure, inner housing also keeps being close to another extraction parts or coffee pads under the action of the spring, guarantees the sealing extracting chamber, effectively avoids leaking.
The back side of above-mentioned inner housing is circumferentially furnished with multiple spring cavity, arranges a described spring in each spring cavity.Arrange many springs and more steadily can promote inner housing, spring cavity is to the effect of spring Constrained in addition, prevents spring sideslip.
Be provided with a limited post in above-mentioned spring cavity, described spring housing is located on limited post.Limited post has further position-limiting action to spring, better prevents spring sideslip.
The front end face of above-mentioned inner housing is provided with cannelure, is provided with sealing gasket in cannelure, and sealing pad constrains in cannelure by the gland be screwed at inner housing front end face, and described gland has multiple apopore.Arrange sealing gasket can strengthen these extraction parts and extract parts with relative another or coffee pads forms better sealing.
The outer peripheral face of above-mentioned inner housing is provided with annular shoulder block, the front end face of described shell body is fixed with two are carried out gear pressing plate to described annular shoulder block, and the inner face of described pressing plate and annular shoulder block form gear and join.Joined by the gear of pressing plate and annular shoulder block, namely when the inner face that inner housing moves forward to pressing plate contacts with annular shoulder block, inner housing can not continue reach again, forms the constraint to inner housing, and prevent inner housing from departing from shell body, this restraining structure is simple.
The both sides of above-mentioned shell body are respectively provided with a convex axle.Arranging convex axle then facilitates shell body to be connected with drives structure, moves to drive extraction parts.
The front end face of above-mentioned inner housing is provided with accommodating cavity, and the bottom surface of accommodating cavity has the hole communicated with described cavity, and described accommodating cavity forms described exhalant canal.This exhalant canal structure ease of assembly check valve assembly.
Above-mentioned check valve assembly comprises spool, valve core spring and valve seat, described spool, valve core spring and valve seat are located in accommodating cavity from inside to outside successively, wherein, valve seat is threaded in the front end in accommodating cavity, valve seat has through hole, valve core spring holds between spool and valve seat, and makes spool keep blocking the trend in the hole of described accommodating cavity bottom surface.It is few that this check valve assembly relates to parts, easy to assembly.
Compared with prior art, the invention has the advantages that: this extraction parts not only rely on the coupling mechanism force of drives structure to realize sealing, also carry out auxiliary propulsion sealing by heat hydraulic pressure used during extraction, during extraction, high-pressure water heating enters between the rear end face of inner housing and the bottom surface of cavity exists free gap, inner housing reach can be promoted and compress another one extraction parts or coffee pads, guarantee that extraction chamber forms effective sealing.
Accompanying drawing explanation
Fig. 1 is the front perspective view of the embodiment of the present invention;
Fig. 2 is the back side perspective view of the embodiment of the present invention;
Fig. 3 is the front view of the embodiment of the present invention;
Fig. 4 is that the A-A of Fig. 3 is to sectional view;
Fig. 5 is that the B-B of Fig. 3 is to sectional view;
Fig. 6 is the perspective view one of the embodiment of the present invention;
Fig. 7 is the perspective view two of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Fig. 1 ~ 7, it is a preferred embodiment of the present invention.
A kind of extraction parts of coffee machine, include body, body is made up of shell body 1 and inner housing 2, the both sides of shell body 1 periphery are respectively provided with a convex axle 13, arranging 13, convex axle facilitates shell body 1 to be connected with handle drives structure, move to drive extraction parts, handle drives structure can be the bar linkage structure driven by handle, it is conventional structure, can the referenced patent number Chinese utility model patent " automatic dropping mechanism of coffee bag in coffee maker " that is ZL200720110811.2 (notification number is CN201044719Y).
The intake tunnel 12 shell body 1 also having cavity 11 and communicate with this cavity 11, intake tunnel 12 is arranged on the rear portion of shell body 1, inner housing 2 has the exhalant canal 21 running through inner housing 2 front end face, is provided with check valve assembly in exhalant canal 21.
Inner housing 2 constrains in the cavity 11 interior also energy front and back slippage of shell body, the outer peripheral face of inner housing 2 is provided with annular shoulder block 25, the front end face of shell body 1 is fixed with two are carried out gear pressing plate 7 to annular shoulder block 25, pressing plate 7 is fixed by screws on shell body 1, the inner face of pressing plate 7 and annular shoulder block 25 form gear and join, joined by the gear of pressing plate 7 with annular shoulder block 25, namely when the inner face that inner housing 2 moves forward to pressing plate 7 contacts with annular shoulder block 25, inner housing 2 can not continue reach again, form the constraint to inner housing 2, prevent inner housing 2 from departing from shell body 1.
There is free gap X between the rear end face of inner housing 2 and the bottom surface of cavity 11, between the periphery of inner housing 2 and the inwall of described cavity 11, be provided with sealing ring 3.
The spring 4 making inner housing 2 keep reach trend is provided with between the bottom surface of cavity 11.The back side of inner housing 2 is circumferentially furnished with five spring cavitys 22, arranges an aforementioned spring 4 in each spring cavity 22.Be provided with a limited post 23 in spring cavity 22, one end of aforementioned spring 4 is set on limited post 23, and the other end of spring 4 holds in the bottom surface of cavity 11.
The front end face of inner housing 2 is provided with cannelure 24, is provided with sealing gasket 5 in cannelure 24, and sealing gasket 5, by being fixed on the gland 6 of inner housing 2 front end face with screw 51 and constraining in cannelure 24, gland 6 has multiple apopore 61.
The front end face of inner housing 2 is provided with accommodating cavity, and the bottom surface of accommodating cavity has the hole 26 communicated with described cavity 11, and accommodating cavity forms aforementioned exhalant canal 21.
Check valve assembly comprises spool 8, valve core spring 9 and valve seat 10, spool 8, valve core spring 9 and valve seat 10 are located in accommodating cavity from inside to outside successively, wherein, valve seat 10 is threaded in the front end in accommodating cavity, valve seat 10 has through hole 101, valve core spring 9 holds between spool 8 and valve seat 10, and makes spool 8 keep blocking the trend in the hole 26 of described accommodating cavity bottom surface.
Operation principle and the process of the extraction parts of this coffee machine are as follows:
This extraction parts not only rely on the coupling mechanism force of drives structure to realize sealing, also carry out auxiliary propulsion sealing by heat hydraulic pressure used during extraction, during extraction, free gap X is there is between the bottom surface that high-pressure water heating enters cavity 11 on the rear end face of inner housing 2 and shell body 1, inner housing 2 reach can be promoted and compress another one extraction parts or coffee pads, guarantee that extraction chamber forms effective sealing.Arrange the effect that spring 4 pairs of inner housings 2 have a compensation sealing, when extraction parts lose hydraulic pressure suddenly, inner housing 2 also keeps being close to another extraction parts or coffee pads under spring 4 acts on, and guarantees the sealing extracting chamber, effectively avoids leaking.

Claims (8)

1. the extraction parts of a coffee machine, include body, described body is made up of shell body (1) and inner housing (2), the intake tunnel (12) described shell body (1) having cavity (11) and communicate with this cavity (11), described inner housing (2) has the exhalant canal (21) running through inner housing (2) front end face, this exhalant canal is provided with check valve assembly in (21), described inner housing (2) constrains in cavity (11) the interior also energy front and back slippage of shell body, free gap (X) is there is between the rear end face of inner housing (2) and the bottom surface of cavity (11), sealing ring (3) is provided with between the periphery of inner housing (2) and the inwall of described cavity (11), it is characterized in that: the outer peripheral face of described inner housing (2) is provided with annular shoulder block (25), the front end face of described shell body (1) is fixed with two are carried out gear pressing plate (7) to described annular shoulder block (25), the inner face of described pressing plate (7) and annular shoulder block (25) form gear and join.
2. the extraction parts of coffee machine according to claim 1, is characterized in that: described inner housing (2) is provided with the spring (4) making inner housing (2) keep reach trend below and between the bottom surface of described cavity (11).
3. the extraction parts of coffee machine according to claim 2, it is characterized in that: the back side of described inner housing (2) is circumferentially furnished with multiple spring cavity (22), a described spring (4) is set in each spring cavity (22).
4. the extraction parts of coffee machine according to claim 3, is characterized in that: be provided with a limited post (23) in described spring cavity (22), described spring (4) is set on limited post (23).
5. the extraction parts of coffee machine according to claim 1, is characterized in that: the both sides of described shell body (1) are respectively provided with a convex axle (13).
6. the extraction parts of coffee machine according to claim 1, it is characterized in that: the front end face of described inner housing (2) is provided with cannelure (24), sealing gasket (5) is provided with in cannelure (24), sealing pad (5), by being fixed on the gland (6) of inner housing (2) front end face with screw (51) and constraining in cannelure (24), described gland (6) has multiple apopore (61).
7. according to the extraction parts of the arbitrary described coffee machine of claim 1 ~ 6, it is characterized in that: the front end face of described inner housing (2) is provided with accommodating cavity, the bottom surface of accommodating cavity has the hole (26) communicated with described cavity (11), and described accommodating cavity forms described exhalant canal (21).
8. the extraction parts of coffee machine according to claim 7, it is characterized in that: described check valve assembly comprises spool (8), valve core spring (9) and valve seat (10), described spool (8), valve core spring (9) and valve seat (10) are located in accommodating cavity from inside to outside successively, wherein, described valve seat (10) is threaded in the front end in accommodating cavity, valve seat (10) has through hole (101), described valve core spring (9) holds between spool (8) and valve seat (10), and make spool (8) keep blocking the trend in the hole (26) of described accommodating cavity bottom surface.
CN201310207343.0A 2013-05-28 2013-05-28 A kind of extraction parts of coffee machine Active CN103300735B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108784360B (en) * 2018-07-30 2023-10-31 宁波三A集团电器有限公司 Coffee machine brewing structure with fool-proof function
CN110123144A (en) * 2019-05-07 2019-08-16 宁波心想科技有限公司 Back pressure valve arrangement and beverage extraction plant with the back pressure valve arrangement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495702A1 (en) * 2003-07-10 2005-01-12 Nestec S.A. Device for the extraction of a cartridge
CN101669767A (en) * 2009-09-17 2010-03-17 景昱东 Drink brewing device
CN202277237U (en) * 2011-10-19 2012-06-20 宁波三A集团电器有限公司 One-way valve having capability of adjusting pressure and used for coffee machine
CN102670076A (en) * 2012-05-10 2012-09-19 宁波全景电器技术有限公司 Automatic package removing mechanism of beverage manufacturing device
CN202515442U (en) * 2012-01-13 2012-11-07 宁波三A集团电器有限公司 Beverage bag falling structure in beverage extracting device
CN203328526U (en) * 2013-05-28 2013-12-11 宁波全景电器技术有限公司 Extracting part for coffee machine part

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1495702A1 (en) * 2003-07-10 2005-01-12 Nestec S.A. Device for the extraction of a cartridge
CN101669767A (en) * 2009-09-17 2010-03-17 景昱东 Drink brewing device
CN202277237U (en) * 2011-10-19 2012-06-20 宁波三A集团电器有限公司 One-way valve having capability of adjusting pressure and used for coffee machine
CN202515442U (en) * 2012-01-13 2012-11-07 宁波三A集团电器有限公司 Beverage bag falling structure in beverage extracting device
CN102670076A (en) * 2012-05-10 2012-09-19 宁波全景电器技术有限公司 Automatic package removing mechanism of beverage manufacturing device
CN203328526U (en) * 2013-05-28 2013-12-11 宁波全景电器技术有限公司 Extracting part for coffee machine part

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