Extractor water outlet valve and coffee machine

Abstract

The utility model discloses an extractor water outlet valve and a coffee machine, which comprise a valve body, the valve body is installed on an extractor upper piston body, the valve body is provided with an installation cavity, a liquid outlet and a liquid outlet channel, coffee liquid can pass through the liquid outlet, the liquid outlet and the liquid outlet channel are respectively communicated with the installation cavity, and the installation cavity is communicated with the installation cavity. A sealing assembly used for sealing and opening the liquid outlet and the liquid outlet channel is arranged in the mounting cavity, and the sealing assembly slides in the mounting cavity. The sealing assembly is arranged to seal the liquid outlet and the liquid outlet channel, when coffee liquid needs to pass through, the sealing assembly retracts to open the liquid outlet and the liquid outlet channel, and the coffee liquid enters the liquid outlet channel through the liquid outlet and the mounting cavity and then is conveyed into a water cup of a user, so that the coffee liquid is prevented from remaining on the sealing assembly, and the service life of the coffee liquid is prolonged. And when the pipeline is cleaned by clean water, the clean water only flows in the liquid outlet, the mounting cavity and the liquid outlet channel, so that the clean water is prevented from remaining in the pipeline, and coffee liquid can be completely flushed.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to an extraction water outlet valve and a coffee machine of an extractor. Background Art

[0002] A coffee machine is a machine used to make coffee. It can make coffee by grinding coffee beans, pressurizing steam or using a water pump, etc. Coffee machines usually have various functions, such as adjusting the coffee concentration, making different types of coffee, etc.; they are widely used in places such as homes, offices, and coffee shops.

[0003] At present, after pouring coffee powder into a brewing cylinder for extrusion brewing, the brewed coffee liquid is sent to a coffee cup through a water outlet valve in an extractor to complete the coffee brewing work.

[0004] As shown in the prior art, such as the Chinese utility model patent with the patent number 202022950401.7, this patent seals the coffee liquid inlet through a spring driving a ball. When it is necessary to extract coffee liquid, the spring drives the ball to move backward, thereby opening the coffee liquid inlet. The coffee liquid passes through the ball and the spring in the water outlet valve and then is sent to the coffee cup. In the case of the prior art coffee machine not being used for a long time, the internal coffee residue liquid remains in the extractor all the time, affecting the taste of subsequent coffee brewing.

[0005] Although some coffee machines will clean the coffee liquid in the pipeline regularly, such as cleaning once after brewing a certain number of coffees, since the coffee liquid will directly contact the spring in the water outlet valve, the coffee liquid within the contact range cannot be mixed and discharged by clean water. It is inevitable that clean water remains around the ball and the spring after cleaning the pipeline with clean water. When brewing the next cup of coffee, the mixture of coffee and clean water makes the taste of coffee worse and the taste inconsistent.

[0006] In view of this, a new technical solution is needed to solve the above technical problems. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an extraction water outlet valve and a coffee machine of an extractor to solve the problems put forward in the background art.

[0008] To achieve the above purpose, in the first aspect, the utility model provides an extraction water outlet valve of an extractor, which includes a valve body. The valve body is installed on the piston body of the extractor. The valve body is provided with an installation cavity, a liquid outlet for passing coffee liquid, and a liquid outlet channel. The liquid outlet and the liquid outlet channel are respectively communicated with the installation cavity. A sealing component for sealing and opening the liquid outlet and the liquid outlet channel is arranged in the installation cavity, and the sealing component slides in the installation cavity.

[0009] In a further technical solution, the liquid outlet channel communicates with the side surface of the installation cavity.

[0010] In a further technical solution, the valve body is provided with a water inlet channel, and the water inlet channel communicates with the liquid outlet channel.

[0011] In a further technical solution, a check valve is arranged at the output end of the water inlet channel.

[0012] In a further technical solution, the check valve is a duckbill valve.

[0013] In a further technical solution, the sealing assembly includes a valve stem, an elastic member and an adjusting member. The first end of the valve stem is slidably installed at the liquid outlet, the first end of the elastic member abuts against the second end of the telescopic valve stem, and the second end of the elastic member abuts against the first end of the adjusting member.

[0014] In a further technical solution, a sealing groove is formed by inward indentation on the outer side of the valve stem, and a sealing ring is arranged in the sealing groove.

[0015] In a further technical solution, the elastic member is a spring. A first installation groove is formed at the second end of the valve stem, and a second installation groove is formed at the first end of the adjusting member. The two ends of the spring respectively abut against the first installation groove and the second installation groove.

[0016] In a further technical solution, the outer side of the adjusting member is screwed to the installation cavity, and the adjusting member is an adjusting knob.

[0017] In a second aspect, the present utility model further provides a coffee machine, including an extractor water outlet valve.

[0018] Compared with the prior art, the present utility model brings the following technical effects:

[0019] For the extractor water outlet valve of the present utility model, the liquid outlet and the liquid outlet channel are sealed through the arrangement of the sealing assembly. When coffee liquid needs to pass through, the sealing assembly retracts to open the liquid outlet and the liquid outlet channel. The coffee liquid passes through the liquid outlet and the installation cavity into the liquid outlet channel, and then is sent to the user's water cup. In this way, the residue of coffee liquid on the sealing assembly is avoided. When the pipeline is cleaned with clean water, the clean water only flows in the liquid outlet, the installation cavity and the liquid outlet channel, avoiding the residue of clean water in the pipeline and being able to completely wash away the coffee liquid.

[0020] The coffee machine of the present utility model includes all the technical features and technical effects of the extractor water outlet valve, so it will not be elaborated here. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the water outlet valve of the extractor and the upper piston body of the present utility model.

[0023] Figure 2 is Figure 1 The top view when the sealing component in [X] approaches and closes the liquid outlet.

[0024] Figure 3 is Figure 2 The sectional view of [X].

[0025] Figure 4 is Figure 1 The top view when the sealing component in [X] moves away from the liquid outlet.

[0026] Figure 5 is Figure 4 The sectional view of [X].

[0027] Figure 6 It is an exploded schematic diagram of the valve body.

[0028] Main element symbol description:

[0029] 1. Valve body; 11. Installation cavity; 12. Liquid outlet; 13. Liquid outlet channel; 14. Sealing component; 141. Valve stem; 1411. Sealing groove; 1412. Sealing ring; 1413. First installation groove; 142. Elastic member; 143. Adjusting member; 15. Water inlet channel; 151. Check valve;

[0030] 2. Upper piston body. Detailed implementation manners

[0031] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] Embodiment 1

[0037] See Figures 1-6As shown, the outlet valve of the extractor includes a valve body 1, and the valve body 1 is installed on the upper piston body 2 of the extractor. The valve body 1 is provided with an installation cavity 11, a liquid outlet 12 for passing coffee liquid, and a liquid outlet channel 13. The liquid outlet 12 and the liquid outlet channel 13 are respectively communicated with the installation cavity 11. A sealing assembly 14 for sealing and opening the liquid outlet 12 and the liquid outlet channel 13 is arranged in the installation cavity 11, and the sealing assembly 14 slides in the installation cavity 11.

[0038] The liquid outlet 12 and the liquid outlet channel 13 are sealed through the arrangement of the sealing assembly 14. When coffee liquid needs to pass through, the sealing assembly 14 retracts to open the liquid outlet 12 and the liquid outlet channel 13. The coffee liquid passes through the liquid outlet 12 and the installation cavity 11 and enters the liquid outlet channel 13, and then is sent to the user's water cup. In this way, the residue of coffee liquid on the sealing assembly 14 is avoided. When the pipeline is cleaned with clean water, the clean water only flows in the liquid outlet 12, the installation cavity 11 and the liquid outlet channel 13, avoiding the residue of clean water in the pipeline and being able to completely wash away the coffee liquid.

[0039] In a further specific embodiment, the liquid outlet channel 13 is communicated with the side surface of the installation cavity 11.

[0040] In the prior art, the sealing assembly 14 is a combination of a spring and a ball. The liquid outlet channel 13 and the installation cavity 11 are integrally designed, that is, the sealing assembly 14 is installed in the liquid outlet channel 13. Therefore, the coffee liquid passes through the liquid outlet 12 and the liquid outlet channel 13 and is sent to the user's water cup. Therefore, the coffee liquid will remain around the spring and the ball. In this embodiment, the liquid outlet channel 13 and the installation cavity 11 are provided, and the installation cavity 11 and the liquid outlet channel 13 are distinguished. The installation cavity 11 is used to install the sealing assembly 14, and the liquid outlet channel 13 is used to export the coffee liquid. Although a part of the installation cavity 11 also plays a role in exporting the coffee liquid, the sealing assembly 14 no longer contacts the coffee liquid. Therefore, the coffee liquid will not remain around the sealing assembly 14. When the pipeline is cleaned, it can be cleaned more thoroughly, thus avoiding the problem of inconsistent coffee liquid taste.

[0041] In a further specific embodiment, the valve body 1 is provided with a water inlet channel 15, and the water inlet channel 15 is communicated with the liquid outlet channel 13.

[0042] It should be noted that in the prior art, after the coffee machine is turned on or a certain number of cups of coffee are made, the pipes of the extractor will be cleaned. The cleaning method is the same as the coffee brewing method, except that no coffee powder is put in during cleaning. Therefore, after the upper piston and the lower piston are closed to form the brewing chamber, clear water enters the brewing chamber, then passes through the liquid outlet 12 and the liquid outlet channel 13 to clean the inside of the pipes. Since the cleaning frequency cannot be set to clean the pipes every time a cup of coffee is brewed, there will be a certain amount of coffee liquid remaining in the liquid outlet channel 13, which will affect the taste of the next cup of coffee, especially when the adjacent two cups of coffee have different flavors. After the coffee brewing is completed, the coffee powder cake will be left in the brewing chamber and cleaned by the slag scraping mechanism, which will not be elaborated further here. Therefore, there will be no residual coffee liquid in the brewing chamber and it will not affect the taste of the next cup of coffee. If the extractor needs to be cleaned every time a cup of coffee is made, on the one hand, a large amount of water is required, and on the other hand, the cleaning time is too long, affecting the user experience.

[0043] In this embodiment, after each cup of coffee is brewed, the liquid outlet channel 13 will be cleaned, that is, clear water enters the liquid outlet channel 13 through the water inlet pipe, and then is discharged from the outlet of the liquid outlet channel 13. This can reduce the influence of the previous cup of coffee liquid on the next cup. Moreover, the cleaning time is short and the amount of water used is small, without affecting the user experience.

[0044] In a further specific embodiment, a check valve 151 is provided at the output end of the water inlet channel 15. The check valve 151 is a duckbill valve. Through the setting of the check valve 151, the clear water will not flow back when entering the liquid outlet channel 13, with a simple structure and strong practicability. It should be noted that when the clear water cleans the liquid outlet channel 13 through the water inlet channel 15, the sealing assembly 14 seals the liquid outlet 12.

[0045] As Figures 2-6 shown, in a further specific embodiment, the sealing assembly 14 includes a valve stem 141, an elastic member 142 and an adjusting member 143. The first end of the valve stem 141 is slidably installed in the liquid outlet 12. The first end of the elastic member 142 abuts against the second end of the telescopic valve stem 141, and the second end of the elastic member 142 abuts against the first end of the adjusting member 143.

[0046] In the prior art, the sealing assembly 14 is usually composed of a ball plunger and a spring. That is, the spring pushes the ball plunger to seal the liquid outlet 12. The spring will drive the ball plunger to move backward, thereby opening the liquid outlet 12. The coffee liquid flows through the ball plunger and the spring in the water outlet valve and then is sent to the coffee cup. In the prior art, the ball plunger is set to be circular or elliptical. When the coffee liquid passes through the ball plunger, bubbles will be generated, affecting the taste of the coffee. Since the coffee liquid will directly contact the spring, it will cause the coffee liquid within the contact range not to be completely discharged. For food safety, the material of the spring must be food-grade, increasing the production cost.

[0047] In this embodiment, the first end of the valve stem 141 is a plane, and the coffee liquid will not pass through the valve stem 141. Therefore, no bubbles will be generated, and the taste of the coffee is not affected. After the coffee liquid enters the liquid outlet 12, it passes through the installation cavity 11 and enters the liquid outlet channel 13. Neither the elastic member 142 nor the adjusting member 143 behind the valve stem 141 will contact the coffee liquid. Therefore, the coffee liquid will not remain on the sealing assembly 14, and the requirement for the material of the spring is reduced. There is no need for a food-grade material, reducing the production cost.

[0048] In a further specific embodiment, a sealing groove 1411 is formed by inwardly recessing the outer side of the valve stem 141, and a sealing ring 1412 is arranged in the sealing groove 1411. Through the arrangement of the sealing groove 1411 and the sealing ring 1412, it is prevented that the coffee liquid enters the rear end of the installation cavity 11 and affects the sealing assembly 14.

[0049] In a further specific embodiment, the elastic member 142 is selected as a spring. A first installation groove 1413 is formed at the second end of the valve stem 141, and a second installation groove is formed at the first end of the adjusting member 143. The two ends of the spring respectively abut against the first installation groove 1413 and the second installation groove. Through the arrangement of the first installation groove 1413 and the second installation groove, the installation of the spring is more stable. Since the coffee liquid does not pass through the spring in this embodiment, the spring in this embodiment can be made of a non-food-grade material, reducing the production cost.

[0050] In a further specific embodiment, the outer side of the adjusting member 143 is screwed to the installation cavity 11, and the adjusting member 143 is selected as an adjusting knob. Through the arrangement of the adjusting member 143, the pressure between the spring and the valve stem 141 can be adjusted, with a simple structure and strong practicability.

[0051] Embodiment 2

[0052] A coffee machine includes an extractor water outlet valve. This embodiment includes all the technical features and technical effects of Embodiment 1, so they will not be elaborated here.

[0053] The description of "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0054] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments, as long as they meet the purpose of the present utility model, and shall be within the scope of protection required by the present utility model, such as: different combinations of each specific embodiment, different combinations of each distinguishing technical feature.

Claims

1. Extractor outlet valve, including a valve body (1), the valve body (1) is installed on the upper piston body (2) of the extractor, characterized in that: The valve body (1) is provided with an installation cavity (11), a liquid outlet (12) for passing coffee liquid, and a liquid outlet channel (13). The liquid outlet (12) and the liquid outlet channel (13) are respectively communicated with the installation cavity (11). A sealing assembly (14) for sealing and opening the liquid outlet (12) and the liquid outlet channel (13) is arranged in the installation cavity (11), and the sealing assembly (14) slides in the installation cavity (11).

2. The outlet valve of the extractor according to claim 1, characterized in that: The liquid outlet channel (13) is communicated with the side surface of the installation cavity (11).

3. The water outlet valve of the extractor according to claim 1, characterized in that: The valve body (1) is provided with a water inlet channel (15), and the water inlet channel (15) is communicated with the liquid outlet channel (13).

4. The water outlet valve of the extractor according to claim 3, wherein: A check valve (151) is arranged at the output end of the water inlet channel (15).

5. The water outlet valve of the extractor according to claim 4, wherein: The check valve (151) is a duckbill valve.

6. The outlet valve of the extractor according to claim 1, wherein: The sealing assembly (14) includes a valve rod (141), an elastic member (142), and an adjusting member (143). The first end of the valve rod (141) is slidably installed in the liquid outlet (12). The first end of the elastic member (142) abuts against the second end of the telescopic valve rod (141), and the second end of the elastic member (142) abuts against the first end of the adjusting member (143).

7. The outlet valve of the extractor according to claim 6, characterized in that: A sealing groove (1411) is formed by inward recess on the outer side of the valve rod (141), and a sealing ring (1412) is arranged in the sealing groove (1411).

8. The outlet valve of the extractor according to claim 6, wherein: The elastic member (142) is a spring. A first installation groove (1413) is formed at the second end of the valve rod (141), and a second installation groove is formed at the first end of the adjusting member (143). Two ends of the spring respectively abut against the first installation groove (1413) and the second installation groove.

9. The water outlet valve of the extractor according to claim 6, characterized in that: The outer side of the adjusting member (143) is screwed with the installation cavity (11), and the adjusting member (143) is an adjusting knob.

10. Coffee machine, characterized in that: Including the extractor water outlet valve according to any one of claims 1-9.

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