Nitriding device for cold-extracted coffee

Abstract

The utility model discloses a cold extraction coffee nitriding device, which relates to the technical field of coffee processing, and comprises a nitrogen inlet piece, a bottle body and a cross rod at the top of the bottle body, the inside of the cross rod is divided into a left cavity and a right cavity which are respectively communicated with the bottle body, the nitrogen inlet piece is inserted into the left end of the inside of the left cavity, and the nitrogen inlet piece is inserted into the right end of the inside of the right cavity. A connecting piece which can be in threaded connection with the liquid outlet faucet is inserted into the right end of the interior of the right cavity, a filter disc with a hole and a closing block with the adjustable opening degree are further sequentially arranged in the right cavity from left to right, the liquid outlet faucet can abut against the closing block leftwards to open the right cavity, and the closing block can elastically reset rightwards to block the right cavity. According to the coffee maker, the preparation cost of the coffee maker is greatly reduced, the foaming effect of coffee and even the final taste are improved, and meanwhile the using flexibility and convenience of the coffee maker are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee processing, and in particular to a cold-brew coffee nitrification device. Background Art

[0002] Cold brew coffee is generally made with water at room temperature or lower, and is very popular in the hot summer. In the past, when making cold brew coffee, people would add milk to improve the smoothness, but many people don’t like to add milk to coffee, especially in the summer, many people don’t like the sweet and greasy milk flavor. Therefore, nitrogen is currently added to coffee to produce fine nitrogen foam on the surface of the coffee to improve the taste of the cold brew coffee and make it softer. Traditional cold brew coffee nitrification devices often discharge liquid directly from the liquid outlet at a relatively high flow rate, which results in a mediocre foaming effect after the liquid is discharged.

[0003] In the prior art, relevant research on cold-brew coffee nitrification devices, such as patent application CN 210943016 U cold-brew coffee dispenser, etc., can be provided with a nitrogen inlet component consisting of a nitrogen bin (generally with a nitrogen bottle built in, the nitrogen bin can squeeze the nitrogen bottle) and a nitrogen valve (in patent application CN 210943016 U cold-brew coffee dispenser, the "egg bin" is the nitrogen bin), on the basis of forming a coffee liquid dissolved with nitrogen, through the coordinated setting of a liquid outlet faucet connected to the liquid outlet end, the foaming effect after the liquid is discharged is guaranteed, thereby ensuring the taste of the cold-brew coffee.

[0004] However, in order to ensure the foaming effect after the liquid is discharged in the prior art, the liquid discharge faucet needs to be selected as a liquid discharge faucet with a perforated filter, which makes the preparation cost of the device high. At the same time, most of the liquid discharge faucets in the prior art are non-detachable, that is, once the faucet is removed, the inside of the bottle containing the coffee liquid cannot be sealed, which makes it extremely occupied in the subsequent refrigeration process (cold brewed coffee needs to be placed in a refrigerator or other equipment for refrigeration), and the flexibility and convenience of the use of the device are average; in addition, the flow rate of the coffee liquid during the discharge is often not adjustable in the prior art, which causes the foaming effect and even the final taste of the coffee to be still affected, and further affects the flexibility and convenience of the use of the device.

[0005] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a cold brew coffee nitrification device to solve the technical problems that the prior art proposed in the above background technology has high preparation cost, the liquid outlet tap in the prior art cannot be disassembled, so that the flexibility and convenience of using the device are general, and the flow rate of the coffee liquid during liquid outlet cannot be adjusted and controlled in the prior art, resulting in that the foaming effect and even the final taste of the coffee are still affected, and further affecting the flexibility and convenience of using the device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A cold brew coffee nitrification device, comprising a bottle body and a cross bar on the top thereof, wherein the top of the bottle body is threadedly connected to a connecting cover, the cross bar is embedded in the upper end surface of the connecting cover via bolts, the interior of the cross bar is divided into a left cavity and a right cavity, the left end of the interior of the left cavity is inserted with a nitrogen inlet piece, and the bottom of the right end is formed with an air inlet, the interior of the air inlet is vertically threadedly connected to an air inlet block, the interior of the air inlet block is coaxially formed with an air inlet channel communicating with the bottle body, the right end of the interior of the right cavity is inserted with a threadable A connecting piece connected to the liquid outlet faucet is formed with a liquid outlet at the bottom of the left end, the internal vertical thread of the liquid outlet is connected with a vertical rod, the interior of the vertical rod is coaxially formed with a liquid outlet channel, and the lower end of the vertical rod is coaxially sleeved with a liquid outlet pipe connected with the liquid outlet channel, the liquid outlet pipe is coaxially arranged inside the bottle body, and the interior of the right cavity is also provided with a filter with a hole and a closing block with an adjustable opening from left to right, the liquid outlet faucet can push the closing block to the left to open the right cavity, and the closing block can elastically reset itself to the right to seal the right cavity.

[0009] Further, the connecting piece includes a connecting tube body I, the closing block is in the shape of an arrow arranged horizontally and coaxially penetrates the interior of the connecting tube body I, the left end of the connecting tube body I is threadedly connected to the right end of the interior of the right cavity, the right end of the connecting tube body I is coaxially sleeved with a connecting tube body II, and the interior of the connecting tube body II is coaxially formed with an internal threaded hole for connecting to a liquid outlet faucet, the closing block includes a straight-line portion and a tapered portion coaxially connected from left to right in an integral manner, the straight-line portion is sleeved with a reset spring II matched therewith, the right end of the connecting tube body I is coaxially formed with a tapered hole that fits the outer surface of the tapered portion, the nitrogen inlet component includes a nitrogen bottle and a horizontally arranged tube body I, the outside of the nitrogen bottle is provided with a nitrogen bin for squeezing it, the right end of the tube body I is threadedly connected Connected to the inner left end of the left cavity, the outer peripheral surface of the left end of the tube body I is formed with an external thread for connecting to the nitrogen warehouse, and a sealing slider is coaxially penetrated inside the tube body I, and the sealing slider is in a cross-shaped structure. The inner wall of the tube body I also extends inwardly to form an annular limiting flange for limiting the sealing slider to the left, and the right end of the sealing slider is sleeved with a reset spring I matched therewith. The inner wall of the tube body I is also coaxially threadedly connected to a ejector pin on the left side of the annular limiting flange, and a drainage channel is coaxially formed inside the ejector pin. The inner wall of the tube body I is also coaxially threadedly connected to a pressing plate on the left side of the ejector pin, a sealing gasket is arranged between the pressing plate and the ejector pin, and a socket for inserting the mouth of the nitrogen bottle is opened at the center of the pressing plate, and the tip of the ejector pin passes through the sealing gasket and extends into the inside of the socket.

[0010] Furthermore, the interior of the connecting cover is also formed with an installation cavity I for accommodating an air intake block, and an installation cavity II for accommodating a vertical rod. A sealing ring I is respectively provided between the air intake block and the installation cavity I, and between the vertical rod and the installation cavity II. The left end of the sealing slider is provided with a sealing ring II for sealing it with the annular limiting flange. A sealing ring III is provided between the right end of the tube body I and the left cavity. A sealing ring IV is provided between the left end of the connecting tube body I and the right cavity. A sealing ring V is provided between the outside of the right end of the connecting tube body I and the connecting tube body II. A sealing ring VI is also provided between the outer surface of the conical portion and the conical hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, a bottle body and a cross bar are provided, and the interior of the cross bar is divided into a left cavity and a right cavity respectively connected to the bottle body. A nitrogen inlet is inserted at the left end of the interior of the left cavity, so that the coffee liquid in the bottle body can be dissolved with nitrogen. A connecting piece that can be threadedly connected to a liquid outlet tap is inserted at the right end of the interior of the right cavity. A closing block is provided inside the right cavity. The liquid outlet tap can push the closing block to the left to open the right cavity, and the closing block can elastically reset to the right to block the right cavity. The matching arrangement enables the liquid outlet tap to be disassembled without affecting the sealing of the interior of the bottle body, which greatly saves the refrigeration space occupied by the device during refrigeration, thereby greatly improving the flexibility of the device. and convenience, and on this basis, the coordinated setting of the perforated filter on the left side of the closing block reduces the flow rate of the coffee liquid and fully foams it, while greatly reducing the preparation cost of the device. Specifically, when the perforated filter is placed inside the right cavity, the foaming effect of cold brew coffee can be achieved by subsequently using an ordinary liquid outlet faucet without a perforated filter. In addition, the adjustable opening of the closing block allows the flow rate of the coffee liquid when it is discharged through the liquid outlet faucet to be adjusted and controlled. For example, the coffee flow rate is reduced, which can better cooperate with the perforated filter for foaming, which greatly improves the foaming effect and even the final taste of the coffee, and further improves the flexibility and convenience of using the device.

[0013] 2. The closing block in the utility model comprises a straight-line portion and a tapered portion which are coaxially connected from left to right in an integral manner. The utility model is provided with a reset spring II which cooperates with the straight-line portion, so that the closing block can be elastically self-reset to the right. The tapered portion is matched with the tapered hole of the connecting tube body I to ensure the opening adjustment of the closing block. That is, by utilizing the structural characteristics of the cone, the more the tapered portion of the closing block and even the entire closing block are pushed to the left, the greater the flow rate, which further improves the foaming effect and even the final taste of the coffee, and further ensures the flexibility and convenience of using the device.

[0014] 3. In the utility model, the sealing performance in the nitriding process and the stability of the connection and installation are fully guaranteed by the coordinated arrangement of multiple sealing rings. At the same time, the disassembly and assembly are more convenient through the arrangement of multiple threaded connections. For example, the pipe body I of the nitrogen inlet member in the utility model is threadedly connected to the nitrogen bin, and the nitrogen bin together with the nitrogen bottle can be disassembled when not in use, which ultimately further ensures the flexibility and convenience of the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the working principle of the utility model;

[0016] Figure 2 This is a structural schematic diagram of the connection and installation of the nitrogen connector, crossbar and closing block of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connection cover of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the crossbar of the utility model;

[0019] Figure 5 This is a schematic diagram of the working principle of the nitrogen storage tank of the utility model;

[0020] In the figure: 1, bottle body, 2, liquid outlet pipe, 3, vertical rod, 31, liquid outlet channel, 4, horizontal rod, 41, left cavity, 411, air inlet, 42, right cavity, 421, liquid outlet, 5, filter with holes, 6, closing block, 61, straight-shaped part, 62, conical part, 7, air inlet block, 71, air inlet channel, 8, connecting cover, 81, installation cavity I, 82, installation cavity II, 9, sealing ring I, 10, tube body I, 101, annular limit flange, 102 , external thread, 11, sealing slider, 12, sealing ring II, 13, reset spring I, 14, ejector pin, 141, drainage channel, 15, pressure plate, 151, jack, 16, sealing gasket, 17, sealing ring III, 18, connecting tube body I, 181, tapered hole, 19, sealing ring IV, 20, connecting tube body II, 201, internal thread hole, 21, sealing ring V, 22, reset spring II, 23, sealing ring VI, 24, nitrogen bin, 25, nitrogen cylinder. DETAILED DESCRIPTION

[0021] The present invention will be described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown.

[0022] See also Figure 1 to Figure 4, which shows a cold brew coffee nitrification device, including a bottle body 1, a connecting cover 8 threadedly connected to the top of the bottle body 1, a nitrogen bottle 25, and a horizontally arranged tube body Ⅰ10, a connecting tube body Ⅰ18 and a connecting tube body Ⅱ20 (the basic structures such as the safety valve provided on the existing cold brew coffee nitrification device are not specifically described here, but the function realization thereof should not be limited thereby. For example, in this embodiment, the safety valve can be installed on the connecting cover 8), a cross bar 4 is embedded in the upper end surface of the connecting cover 8 through bolts, and the interior of the cross bar 4 is divided into a left cavity 41 and a right cavity 42. The right end of the tube body Ⅰ10 is threadedly connected to the left end of the left cavity 41, and a sealing ring Ⅲ17 for sealing the left cavity 41 and the tube body Ⅰ10 is provided between the left cavity 41 and the tube body Ⅰ10. A sealing slider 11 is coaxially penetrated inside the tube body Ⅰ10. The sealing slider 11 is in a cross-shaped structure, and the inner wall of the tube body Ⅰ10 extends inwardly and is circumferentially formed with an annular limiter for limiting the position of the sealing slider 11 when it is moved to the left. Flange 101, a sealing ring II 12 for sealing the annular limiting flange 101 and the sealing slider 11 is also provided between the annular limiting flange 101 and the sealing slider 11, the sealing ring II 12 is sleeved on the left end of the sealing slider 11, and the right end of the sealing slider 11 is sleeved with a return spring I 13 matched therewith and can be elastically reset to the left by the return spring I 13. The inside of the tube body I 10 is also provided with a pressing plate 15, a sealing gasket 16 and an ejector pin 14 from left to right on the left side of the annular limiting flange 101, and the ejector pin 1 4 is coaxially formed with a drainage channel 141, a plug hole 151 for inserting the bottle mouth of the nitrogen bottle 25 is opened at the center of the pressing plate 15, the pressing plate 15 and the ejector pin 14 are coaxially threadedly connected with the tube body Ⅰ10, and the tip of the ejector pin 14 passes through the sealing gasket 16 and extends into the inside of the plug hole 151, the outside of the nitrogen bottle 25 is also provided with a nitrogen bin 24 for squeezing it, and the outer peripheral surface of the left end of the tube body Ⅰ10 is formed with an external thread 102 for connecting with the nitrogen bin 24.

[0023] Further, the left end of the connecting tube body Ⅰ18 is threadedly connected to the right end of the inside of the right cavity 42, and a sealing ring Ⅳ19 for sealing the two is provided between the right cavity 42 and the connecting tube body Ⅰ18. The interior of the connecting tube body Ⅰ18 is also coaxially penetrated by a horizontally arranged arrow-shaped closing block 6, and the closing block 6 has a straight-line portion 61 and a conical portion 62 that are coaxially connected from left to right. The straight-line portion 61 is sleeved with a reset spring Ⅱ22 that cooperates with it and can be elastically reset to the right by the reset spring Ⅱ22. The right end of the connecting tube body Ⅰ18 is also coaxially formed with a conical hole 181, and the conical hole 181 fits with the outer surface of the conical portion 62 and the conical hole 181 is fitted with the outer surface of the conical portion 62. A sealing ring VI23 for sealing the part 62 and the tapered hole 181 is also provided between the two, the connecting tube body II20 is coaxially sleeved on the outside of the right end of the connecting tube body I18 and a sealing ring V21 for sealing the two is provided between the connecting tube body I18, and the interior of the connecting tube body II20 is also coaxially formed with an internal threaded hole 201 for threaded connection with the liquid outlet faucet (the function and structure of a normal liquid outlet faucet without a perforated filter are well known in the art, so no further explanation is given here and it is not shown in the accompanying drawings), and a perforated filter 5 is also provided on the left side of the straight portion 61 inside the right cavity 42 (in this embodiment, the perforated filter 5 can be selected as a 5-hole filter).

[0024] Furthermore, an air inlet 411 is formed at the bottom of the right end of the left cavity 41, and the internal thread of the air inlet 411 is connected to a vertically arranged air inlet block 7, and an installation cavity Ⅰ81 is formed inside the connecting cover 8, and the air inlet block 7 is placed inside the installation cavity Ⅰ81. An air inlet channel 71 is also coaxially formed inside the air inlet block 7, and the air inlet channel 71 is communicated with the bottle body 1. A liquid outlet 421 is formed at the bottom of the left end of the right cavity 42, and the internal thread of the liquid outlet 421 is connected to a vertically arranged vertical rod 3, and an installation cavity Ⅱ82 is also formed inside the connecting cover 8, and the vertical rod 3 is placed inside the installation cavity Ⅱ82. Sealing rings Ⅰ9 are respectively provided between the air inlet block 7 and the installation cavity Ⅰ81, and between the vertical rod 3 and the installation cavity Ⅱ82. A liquid outlet channel 31 is also coaxially formed inside the vertical rod 3, and a liquid outlet pipe 2 is coaxially arranged inside the bottle body 1, and the liquid outlet pipe 2 is coaxially sleeved on the lower end of the vertical rod 3 and communicated with the liquid outlet channel 31.

[0025] The working principle and workflow of the utility model are as follows:

[0026] First, the bottle body 1 is filled with coffee liquid, and the connecting cap 8 is threadedly connected to the bottle body 1 to close the bottle body 1, and then the nitrogen bin 24 with the nitrogen bottle 25 built in is threadedly connected to the tube body Ⅰ10. At this time, the pressing plate 15 presses the ejector pin 14 through the sealing gasket 16, and the bottle mouth of the nitrogen bottle 25 passes through the insertion hole 151 and presses on the sealing gasket 16, and the sealing gasket 16 ensures that the gas in the nitrogen bottle 25 does not overflow;

[0027] Then, the nitrogen cylinder 25 is squeezed by the nitrogen bin 24, so that the top of the ejector pin 14 breaks the sealing skin of the nitrogen cylinder 25, and the nitrogen in the nitrogen cylinder 25 enters the drainage channel 141 of the ejector pin 14. When the pressure generated by the nitrogen is greater than the elastic force of the return spring Ⅰ13, the gas squeezes the sealing slider 11 to move rightward, so that the nitrogen enters the bottle body 1 from the left cavity 41 through the air inlet channel 71 of the air inlet block 7. When the pressure in the bottle body 1 plus the elastic force of the return spring Ⅰ13 is greater than the pressure in the nitrogen cylinder 25, the sealing slider 11 is reset to the left, the left cavity 41 is sealed, and the coffee liquid in the bottle body 1 is fully dissolved with the nitrogen.

[0028] Finally, after the liquid outlet faucet (not shown, in this embodiment, it is an ordinary liquid outlet faucet without a filter) is threadedly connected to the connecting pipe body II20, the handle of the liquid outlet faucet is pushed, and the push rod in the liquid outlet faucet pushes the tapered portion 62 to the left and pushes the entire closing block 6 together, so that the right cavity 42 is opened, and the coffee liquid in the bottle body 1 flows out through the liquid outlet pipe 2, the liquid outlet channel 31 and the right cavity 42 in sequence. When the handle of the liquid outlet faucet is released, the return spring II22 on the left side of the closing block 6 pushes the closing block 6 to the right to reset it, and the right cavity 42 is sealed. The more the closing block 6 is pushed to the left, the greater the flow rate of the liquid outlet faucet, and the perforated filter 5 in the right cavity 42 can slow down the flow rate of the coffee liquid to allow it to be fully foamed.

[0029] In addition, the nitrogen tank 24 and the liquid outlet tap can be disassembled when not in use.

Claims

1. A cold brew coffee nitrification device, comprising a nitrogen inlet, a bottle body and a cross bar on the top thereof, characterized in that: The interior of the crossbar is divided into a left cavity and a right cavity respectively connected to the bottle body, the nitrogen inlet piece is inserted into the left end of the left cavity, and the right end of the right cavity is inserted with a connector that can be threadedly connected to a liquid outlet tap. The interior of the right cavity is also provided with a filter with a hole and a closing block with an adjustable opening from left to right, the liquid outlet tap can push the closing block to the left to open the right cavity, and the closing block can elastically reset itself to the right to block the right cavity.

2. The cold brew coffee nitrification device according to claim 1, characterized in that: An air inlet is formed at the bottom of the right end of the left cavity, and a liquid outlet is formed at the bottom of the left end of the right cavity.

3. The cold brew coffee nitrification device according to claim 2, characterized in that: The internal vertical thread of the air inlet is connected to an air inlet block, and the interior of the air inlet block is coaxially formed with an air inlet channel connected to the bottle body. The internal vertical thread of the liquid outlet is connected to a vertical rod, and the interior of the vertical rod is coaxially formed with a liquid outlet channel, and the lower end of the vertical rod is coaxially sleeved with a liquid outlet pipe connected to the liquid outlet channel, and the liquid outlet pipe is coaxially arranged inside the bottle body.

4. The cold brew coffee nitrification device according to claim 3, characterized in that: The top of the bottle body is threadedly connected to a connecting cover, and the cross bar is embedded in the upper end surface of the connecting cover by bolts. The interior of the connecting cover is also formed with an installation cavity I for accommodating an air intake block, and an installation cavity II for accommodating a vertical rod. A sealing ring I is respectively provided between the air intake block and the installation cavity I, and between the vertical rod and the installation cavity II.

5. The cold brew coffee nitrification device according to claim 1, characterized in that: The nitrogen inlet component includes a nitrogen bottle and a horizontally arranged tube body I. The outside of the nitrogen bottle is provided with a nitrogen bin for squeezing the nitrogen bottle. A sealing slider is coaxially penetrated inside the tube body I. The sealing slider is in a cross-shaped structure. The inner wall of the tube body I also extends inwardly to form an annular limiting flange for limiting the sealing slider to the left. The left end of the sealing slider is also sleeved with a sealing ring II for sealing it and the annular limiting flange. The right end of the sealing slider is sleeved with a reset spring I matched with it. The inner wall of the tube body I is also coaxially threaded with a thimble on the left side of the annular limiting flange, and a drainage channel is coaxially formed inside the thimble.

6. The cold brew coffee nitrification device according to claim 5, characterized in that: The inner wall of the tube body I is also coaxially threaded with a pressure plate on the left side of the ejector pin, a sealing gasket is arranged between the pressure plate and the ejector pin, and a socket for inserting the mouth of the nitrogen bottle is opened at the center of the pressure plate, and the tip of the ejector pin passes through the sealing gasket and extends into the interior of the socket.

7. The cold brew coffee nitrification device according to claim 5, characterized in that: The right end of the tube body I is threadedly connected to the inner left end of the left cavity and a sealing ring III is arranged between the left cavity. The outer peripheral surface of the left end of the tube body I is formed with an external thread for connecting with the nitrogen warehouse.

8. The cold brew coffee nitrification device according to claim 1, characterized in that: The connecting piece includes a connecting tube body I, the closing block is horizontally arranged in the shape of an arrow and coaxially passes through the interior of the connecting tube body I, the left end of the connecting tube body I is threadedly connected to the right end of the interior of the right cavity and a sealing ring IV is provided between the right cavity, the right end of the connecting tube body I is coaxially sleeved with a connecting tube body II on the outside and a sealing ring V is provided between the connecting tube body II, and the interior of the connecting tube body II is also coaxially formed with an internal threaded hole for connecting to a liquid outlet faucet.

9. The cold brew coffee nitrification device according to claim 8, characterized in that: The closing block comprises a straight-line portion and a conical portion which are coaxially connected from left to right in an integral manner. A return spring II is sleeved on the straight-line portion and matched with it. A conical hole which fits the outer surface of the conical portion is coaxially formed inside the right end of the connecting tube body I. A sealing ring VI is also provided between the outer surface of the conical portion and the conical hole.

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