Valve of hand coffee maker

Abstract

The utility model discloses a hand coffee pot valve which comprises a valve body and a control valve, the valve body is provided with a liquid passing channel, the valve body is further provided with an installation cavity communicated with the liquid passing channel, and a liquid outlet hole is formed in the position where the installation cavity is communicated with the liquid passing channel. The control valve comprises a valve rod and a valve plate, and the valve rod is rotatably mounted in the mounting cavity and is in sealing fit with the side wall of the mounting cavity; the valve plate is axially arranged at one end of the valve rod and located in the mounting cavity, the valve plate is arranged to be in an arc shape and is in a tile shape to be matched with the surface shape of the liquid outlet hole, at least one side of the valve plate in the axial direction is arranged to be in an arc shape, and the valve plate is rotated to rotate the liquid outlet hole. And the arc-shaped side of the arc-shaped groove gradually crosses the liquid outlet hole so as to gradually open or close the liquid outlet hole. According to the utility model, more precise flow control can be realized, that is, the liquid passing amount controlled by the valve is relatively small when the valve rotates by a specific angle, and meanwhile, the structure is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of valve technology for supplying liquids, and in particular to a valve for a pour-over coffee maker. Background Technology

[0002] In the prior art, valves for supplying liquids such as water have various structures, including butterfly valves, ball valves, plunger valves, and faucet valve cores. A butterfly valve opens or closes the liquid passage by rotating a valve plate located in the passage, controlling the flow rate by the rotation angle. A ball valve has an outlet hole on its spherical valve body; rotating the spherical valve body connects the outlet hole to the liquid passage, allowing it to open, or it can close the passage, controlling the flow rate by the rotation angle. A plunger valve has a connection hole on the plunger; rotating the plunger connects the connection hole to the liquid passage, allowing it to open, or it can close the passage, controlling the flow rate by the rotation angle. A faucet valve core includes stacked valve plates, each with a water passage hole. Sliding one valve plate allows two water passage holes to overlap, controlling the flow rate by the degree of overlap.

[0003] The valve structure described above has a large flow rate for each specific angle of rotation, and its control precision is insufficient, making it unsuitable for pour-over coffee makers. However, brewing coffee requires precise control of the water-to-coffee ratio to obtain different tastes; or the structure is too complex to be applied to pour-over coffee makers, such as faucet valve cores. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide a pour-over coffee maker valve that achieves more precise flow control; that is, by rotating it at a specific angle, the controlled flow rate is relatively small, while the structure is relatively simple.

[0005] To achieve the above objectives, this utility model provides a valve for a pour-over coffee maker, comprising:

[0006] The valve body is provided with a liquid passage and a mounting cavity communicating with the liquid passage. The connection between the mounting cavity and the liquid passage is a liquid outlet.

[0007] A control valve includes a valve stem and a valve disc. The valve stem is rotatably mounted in the mounting cavity and is sealed to the side wall of the mounting cavity. The valve disc is axially disposed at one end of the valve stem and located in the mounting cavity. The valve disc is arc-shaped and tile-like, matching the surface shape of the liquid outlet. At least one side of the valve disc is arc-shaped in the axial direction. When the valve disc is rotated, its arc-shaped side gradually moves across the liquid outlet to gradually open or close the liquid outlet.

[0008] According to an embodiment of the present invention, a hand-drip coffee maker valve has an arc-shaped valve plate that matches the surface shape of the liquid outlet. At least one side of the valve plate is arc-shaped in the axial direction. When the valve plate is rotated, the arc-shaped side gradually moves across the liquid outlet to gradually open or close the liquid outlet. This results in a relatively small flow rate when the arc-shaped side moves across the liquid outlet. That is, rotating a specific angle results in a relatively small flow rate, achieving more precise flow control while maintaining a simple structure.

[0009] In addition, the pour-over coffee maker valve proposed according to the above embodiments of this utility model may also have the following additional technical features:

[0010] Optionally, the control valve further includes a mounting base disposed in the mounting cavity, and a liquid passage cavity communicating with the liquid passage is formed between the mounting base and the mounting cavity. The mounting base is provided with a rotating hole for the valve stem to pass through; the valve stem passes through the rotating hole, and the valve plate is placed in the liquid passage cavity.

[0011] Specifically, the control valve further includes a connecting plate, one side of which is connected to the valve stem and the other side of which is connected to the valve plate. The connecting plate is placed in the liquid passage chamber and is sealed to the side wall of the liquid passage chamber.

[0012] Specifically, the mounting base has hexagonal protrusions around the circumference of the rotating hole.

[0013] Furthermore, the control valve also includes a knob connected to the valve stem, and the knob is provided with a groove for engaging with the protrusion.

[0014] Optionally, the maximum length of the valve plate in the axial direction is less than the diameter of the liquid outlet hole, so that a gap is still left when the valve plate completely covers the liquid outlet hole. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an embodiment of the present utility model;

[0016] Figure 2 This is an exploded perspective view of an embodiment of the present utility model;

[0017] Figure 3 This is a side view of an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the control valve structure according to an embodiment of the present invention;

[0019] Figure 5 This is a comparative effect diagram of an embodiment of the present utility model.

[0020] Label Explanation

[0021] Valve body 1, liquid passage 11, liquid outlet 111, mounting cavity 12, control valve 2, valve stem 21, valve plate 22, mounting base 23, liquid passage cavity 231, rotating hole 232, protrusion 233, connecting plate 24, knob 25. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0023] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] like Figures 1 to 5 As shown in the figure, a hand-drip coffee maker valve according to an embodiment of the present invention includes a valve body 1 and a control valve 2. The valve body 1 is provided with a liquid passage 11, which is usually a circular through hole. The valve body 1 is also provided with an installation cavity 12 communicating with the liquid passage 11. The connection between the installation cavity 12 and the liquid passage 11 is a liquid outlet 111.

[0025] The control valve 2 includes a valve stem 21 and a valve plate 22. The valve stem 21 is rotatably mounted in the mounting cavity 12 and is sealed to the side wall of the mounting cavity 12, typically through a sealing ring. The valve plate 22 is axially positioned at one end of the valve stem 21 and located in the mounting cavity 12. The valve plate 22 is arc-shaped and tile-like, matching the surface shape of the liquid outlet 111. At least one side of the valve plate 22 is arc-shaped in the axial direction. Rotating the valve plate 22 causes its arc-shaped side to gradually pass over the liquid outlet 111, thereby gradually opening or closing the liquid outlet 111.

[0026] Optionally, the control valve 2 further includes a mounting base 23, which is disposed in the mounting cavity 12 and can be installed in the mounting cavity 12 by a threaded connection. A liquid passage chamber 231 is formed between the mounting base 23 and the mounting cavity 12, communicating with the liquid passage channel 11. The mounting base 23 is provided with a rotating hole 232 for the valve stem 21 to pass through. The valve stem 21 passes through the rotating hole 232 and can rotate in the rotating hole 232, while the valve plate 22 is placed in the liquid passage chamber 231.

[0027] Specifically, the control valve 2 further includes a connecting plate 24, one side of which is connected to the valve stem 21, and the other side of which is connected to the valve plate 22. The connecting plate 24 is placed in the liquid passage chamber 231 and is sealed to the side wall of the liquid passage chamber 231. The connecting plate 24 is circumferentially sealed to the side wall of the liquid passage chamber 231 through a sealing ring. At the same time, the end face of the connecting plate 24 connected to the valve stem 21 is sealed to the mounting base 23 through a sealing ring.

[0028] Specifically, the mounting base 23 has a hexagonal protrusion 233 around the circumference of the rotating hole 232. Furthermore, the control valve 2 also includes a knob 25, which is connected to the valve stem 21 by means of a threaded connection. The knob 25 has a groove for engaging with the protrusion 233.

[0029] Optionally, the maximum length of the valve plate 22 in the axial direction is less than the diameter of the liquid outlet 111, so that when the valve plate 22 completely covers the liquid outlet 111, there is still a gap, which is suitable for coffee extraction that requires a long time to pass through a small amount of water.

[0030] Because the valve plate 22 is designed in an arc shape, matching the surface shape of the outlet hole 111, and at least one side of the valve plate 22 is arc-shaped in the axial direction, rotating the valve plate 22 causes its arc-shaped side to gradually pass over the outlet hole 11, thus gradually opening or closing the outlet hole. This results in a relatively small flow rate controlled by the arc-shaped side as it passes over the outlet hole; that is, rotating at a specific angle results in a relatively small flow rate, achieving more precise flow control while maintaining a simple structure. Figure 5 As shown, when the plunger of the plunger valve rotates by the same angle as the plunger valve, the liquid flow area of ​​the liquid outlet 11 opened by the plunger is larger than the liquid flow area of ​​the liquid outlet 11 opened by the valve plate 22 of this utility model. That is, when rotating by a specific angle, the liquid flow controlled by this utility model is relatively small, thus achieving more precise flow control.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A valve for a pour-over coffee maker, characterized in that, include: The valve body is provided with a liquid passage and a mounting cavity communicating with the liquid passage. The connection between the mounting cavity and the liquid passage is a liquid outlet. A control valve includes a valve stem and a valve disc. The valve stem is rotatably mounted in the mounting cavity and is sealed to the side wall of the mounting cavity. The valve disc is axially disposed at one end of the valve stem and located in the mounting cavity. The valve disc is arc-shaped and tile-like, matching the surface shape of the liquid outlet. At least one side of the valve disc is arc-shaped in the axial direction. When the valve disc is rotated, its arc-shaped side gradually moves across the liquid outlet to gradually open or close the liquid outlet.

2. The hand-drip coffee maker valve as described in claim 1, characterized in that, The control valve further includes a mounting base disposed in the mounting cavity, and a liquid passage cavity is formed between the mounting base and the mounting cavity to communicate with the liquid passage. The mounting base is provided with a rotating hole for the valve stem to pass through; the valve stem passes through the rotating hole, and the valve plate is placed in the liquid passage cavity.

3. A pour-over coffee maker valve as described in claim 2, characterized in that, The control valve also includes a connecting plate, one side of which is connected to the valve stem and the other side of which is connected to the valve disc. The connecting plate is placed in the liquid passage chamber and is sealed to the side wall of the liquid passage chamber.

4. A pour-over coffee maker valve as described in claim 2, characterized in that, The mounting base has hexagonal protrusions around the circumference of the rotating hole.

5. A pour-over coffee maker valve as described in claim 4, characterized in that, The control valve also includes a knob connected to the valve stem, and the knob has a groove for engaging with the protrusion.

6. A pour-over coffee maker valve as described in claim 1, characterized in that, The maximum length of the valve plate in the axial direction is less than the diameter of the liquid outlet hole, so that there is still a gap when the valve plate completely covers the liquid outlet hole.

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