Brewing mechanism and brewing apparatus

Abstract

The disclosure provides a brewing mechanism and a brewing device, the brewing mechanism comprising a filter cup and a cup holder, the cup holder being provided with a control flow-through cavity and a water outlet, the filter cavity, the mounting opening, the control flow-through cavity and the water outlet being sequentially communicated from top to bottom; a movable piece is arranged in the control flow-through cavity and blocks the water outlet; a control assembly is provided with a magnetic suction end and a poking end, the outer peripheral wall of the cup holder is provided with a movable opening, the poking end is arranged in the movable opening, the poking end is arranged close to the outer peripheral wall of the control flow-through cavity, and the poking end is rotationally connected to the outer boss of the cup holder; when the poking end moves downward, the magnetic suction end and the movable piece are driven to move upward; when the poking end moves upward, the magnetic suction end and the movable piece are driven to move downward. The position of the movable piece of the control flow-through cavity is changed through the magnetic suction end and the poking end of the control assembly, so that the water flow size of the water source from the control flow-through cavity to the water outlet can be controlled, and the water outlet amount can be controlled according to the characteristic requirements.

Description

Technical Field

[0001] This disclosure relates to the technical field of brewing equipment, and in particular to a brewing mechanism and brewing equipment. Background Technology

[0002] Currently, with the growing popularity of coffee and tea culture, people are paying more and more attention to the brewing process of coffee and tea. In the process of pour-over coffee or tea, water flow control is one of the key factors affecting the extraction effect. Traditional brewing tools often cannot control the water flow rate and volume manually.

[0003] For example, Chinese patent document CN208107957U discloses a lamp with controllable water flow decorative effect, including a base, a water cup, an annular frame, a light source structure, a drive control device, a water tank connected to the water cup, a water pump, a water pipe, and a vibration mechanism that can cause the water flow at the water outlet to vibrate. The top of the inner side wall of the annular frame is provided with a water outlet, and a vibrating metal plate is provided between the water pipe and the water outlet. The vibration mechanism includes a fixed frame, a coil that can generate magnetic poles when energized, a magnet that is attracted to the vibrating metal plate and interacts with the coil to cause the water flow at the water outlet to vibrate, and a spring.

[0004] However, while the aforementioned lamps with controllable water flow decorative effects can generate magnetic poles in a coil by applying electricity, allowing a vibrating metal plate to interact with the coil and guide water flow to the spout through vibration, and simultaneously illuminated by a high-speed flashing light source to create a flowing, color-changing effect, they cannot control the water flow to the spout in real time according to the needs of coffee or tea brewing. Therefore, they cannot meet the specific brewing requirements of particular products to achieve the desired brewing dosage. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and to provide a brewing mechanism and brewing device that can control the water flow rate and water output.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A brewing mechanism includes a filter cup and a cup holder. The filter cup has a filtration chamber that is connected to an external water inlet. The cup holder has an installation port where the filter cup is installed, and the filtration chamber is connected to the installation port.

[0008] The brewing mechanism also includes a movable component and a control assembly; the cup holder has a control flow cavity and a water outlet, and the filter cavity, the mounting port, the control flow cavity, and the water outlet are connected sequentially from top to bottom; the movable component is disposed in the control flow cavity and blocks the water outlet; a magnetic suction end is provided on the first side of the control assembly, and a toggle end is provided on the second side of the control assembly; an opening is provided on the outer peripheral wall of the cup holder, and the toggle end passes through the opening. The toggle end is disposed adjacent to the outer peripheral wall of the control flow cavity, and the toggle end is rotatably connected to the outer protrusion of the cup holder; when the toggle end moves downward, it drives the magnetic suction end and the movable component to move upward; when the toggle end moves upward, it drives the magnetic suction end and the movable component to move downward.

[0009] In one embodiment, the control component includes a toggle lever, the outer protrusion of the cup holder body has a rotating groove, the rotating groove has a first rotating opening and a second rotating opening on opposite sides, the toggle lever has a first rotating post and a second rotating post on both sides, the first rotating post is rotatably connected to the first rotating opening, and the second rotating post is rotatably connected to the second rotating opening.

[0010] In one embodiment, the control component further includes a magnetic attractor, the magnetic attractor end and the toggle end are disposed at both ends of the toggle lever, the magnetic attractor end has a magnetic attractor cavity, and the magnetic attractor is disposed in the magnetic attractor cavity.

[0011] In one embodiment, the actuating lever includes an actuating lever body and a rotating shaft. The rotating shaft is disposed at the bottom of the actuating lever body, a first end of the rotating shaft is connected to the first rotating column, a second end of the rotating shaft is connected to the second rotating column, and the rotating shaft is disposed within the rotating groove.

[0012] In one embodiment, the cup holder includes a rotating platform disposed within the rotating groove, the actuating rod is mounted on the rotating platform, and the rotating shaft abuts against the end face of the rotating platform.

[0013] In one embodiment, the brewing mechanism further includes a first sealing element, the cup holder body has a sealing boss, the sealing boss is disposed at the mounting port and close to the side of the control flow cavity, the first sealing element is disposed at the end face of the sealing boss, and the bottom of the filter cup abuts against the first sealing element.

[0014] In one embodiment, the brewing mechanism further includes a second seal, the cup holder is provided with a mounting groove, the mounting groove is located in the control flow cavity, the mounting groove is connected to the water outlet, the second seal covers the mounting groove, and the movable member abuts against the second seal.

[0015] In one embodiment, the projected shape of the movable element is circular.

[0016] In one embodiment, the filter cup is detachably connected to the cup holder.

[0017] A brewing device includes the brewing mechanism described in any of the above embodiments.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] By providing an installation port in the cup holder and installing the filter cup within it, the filter cup can connect to an external water inlet. Water flows through the filtration chamber to the installation port. Simultaneously, the filtration chamber, installation port, control flow chamber, and outlet are connected sequentially from top to bottom, allowing external water to flow through the filtration chamber into the control flow chamber. A movable component is positioned within the control flow chamber and blocks the outlet, preventing water from flowing out of the control flow chamber to the outlet. An movable opening is provided on the outer peripheral wall of the cup holder, allowing the actuating end to... A movable opening is inserted close to the outer wall of the control flow chamber. The actuating end is rotatably connected to the outer protrusion of the cup holder, while the magnetic end has a certain magnetic force to magnetically attract the movable component placed within the control flow chamber. Because the actuating end is rotatably connected to the outer protrusion of the cup holder, when the actuating end moves downwards, it drives the magnetic end and the movable component upwards, causing the movable component to move upwards and water to flow out of the outlet. When the actuating end moves upwards, it drives the magnetic end and the movable component downwards, causing the movable component to block the outlet, thus sealing it. By controlling the magnetic end and actuating end of the control component, the position of the movable component in the control flow chamber can be changed, allowing control of the water flow from the control flow chamber to the outlet. The brewing mechanism can control the water flow rate and the amount of water dispensed according to specific needs, such as coffee or tea, to achieve a specific brewing dosage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of a brewing mechanism according to an embodiment of the present disclosure;

[0022] Figure 2This is a schematic diagram of the brewing mechanism according to an embodiment of the present disclosure;

[0023] Figure 3 for Figure 2 The enlarged view shown at point A in the middle;

[0024] Figure 4 This is an exploded view of a brewing mechanism according to an embodiment of the present disclosure.

[0025] Reference numerals: 10, brewing mechanism; 100, filter cup; 110, filter chamber; 200, cup holder; 210, mounting port; 220, control flow chamber; 230, water outlet; 240, movable port; 250, rotating groove; 2510, first rotating port; 2520, second rotating port; 260, rotating platform; 270, sealing boss; 280, mounting groove; 300, movable part; 400, control component; 410, actuating lever; 4110, magnetic end; 4120, actuating end; 4130, first rotating column; 4140, second rotating column; 4150, magnetic cavity; 420, rotating shaft; 430, magnetic component; 500, first sealing element; 600, second sealing element. Detailed Implementation

[0026] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0030] like Figures 1 to 4 As shown, a brewing mechanism 10 of one embodiment includes a filter cup 100 and a cup holder 200. The filter cup 100 has a filter chamber 110, which is connected to an external water inlet. The cup holder 200 has an installation port 210, and the filter cup 100 is installed in the installation port 210. The filter chamber 110 is connected to the installation port 210.

[0031] The brewing mechanism 10 further includes a movable component 300 and a control component 400; the cup holder 200 has a control flow cavity 220 and a water outlet 230, and the filter cavity 110, the mounting port 210, the control flow cavity 220, and the water outlet 230 are connected sequentially from top to bottom; the movable component 300 is disposed in the control flow cavity 220 and blocks the water outlet 230; the control component 400 is provided with a magnetic suction end 4110 and a toggle end 4120, and the cup holder... The outer peripheral wall of the body 200 has a movable opening 240. The actuating end 4120 passes through the movable opening 240 and is close to the outer peripheral wall of the control flow cavity 220. The actuating end 4120 is rotatably connected to the outer protrusion of the cup holder body 200. When the actuating end 4120 moves downward, it drives the magnetic suction end 4110 and the movable part 300 to move upward. When the actuating end 4120 moves upward, it drives the magnetic suction end 4110 and the movable part 300 to move downward.

[0032] In this embodiment, by providing an installation port 210 in the cup holder and installing the filter cup 100 within the installation port 210, the filter cup 100 can connect to an external water inlet, allowing water to flow through the filter chamber 110 to the installation port 210. Simultaneously, the filter chamber 110, installation port 210, control flow chamber 220, and outlet 230 are sequentially connected from top to bottom, allowing external water to flow through the filter chamber 110 into the control flow chamber 220. At the same time, a movable component 300 is positioned within the control flow chamber 220 and blocks the outlet 230, preventing water from flowing out of the control flow chamber 220 to the outlet 230 when water flows into it. An movable opening 240 is provided on the outer peripheral wall of the cup holder 200, allowing the movable component 300 to be moved... End 4120 passes through the movable opening 240 and is close to the outer peripheral wall of the control flow cavity 220. At the same time, the actuating end 4120 is rotatably connected to the outer protrusion of the cup holder 200. The magnetic end 4110 has a certain magnetic attraction force and can magnetically attract the movable part 300 placed in the flow control cavity. Since the actuating end 4120 is rotatably connected to the outer protrusion of the cup holder 200, when the actuating end 4120 moves downward, it drives the magnetic end 4110 and the movable part 300 to move upward, thereby causing the movable part 300 to move upward, and the water source flows out from the outlet 230 because the movable part 300 moves upward. When the actuating end 4120 moves upward, it drives the magnetic end 4110 and the movable part 300 to move downward, thereby causing the movable part 300 to block the outlet 230, thus sealing the outlet 230. By controlling the magnetic end 4110 and the actuating end 4120 of the control component 400, the position of the movable part 300 of the control flow chamber 220 can be changed, thereby controlling the water flow from the control flow chamber 220 to the outlet 230. The brewing mechanism 10 can control the water flow rate and the water volume according to specific needs through the control component 400, and thus meet the specific brewing needs of coffee or tea to achieve a specific brewing dosage.

[0033] like Figure 1 and Figure 2As shown, in one embodiment, the control component 400 includes a toggle lever 410, the outer protrusion of the cup holder body 200 is provided with a rotating groove 250, the rotating groove 250 is provided with a first rotating opening 2510 and a second rotating opening 2520 on opposite sides, the toggle lever 410 is provided with a first rotating post 4130 and a second rotating post 4140 on both sides, the first rotating post 4130 is rotatably connected to the first rotating opening 2510, and the second rotating post 4140 is rotatably connected to the second rotating opening 2520. It is understood that in this embodiment, a rotating groove 250 is provided on the outer protrusion of the cup holder, and a first rotating opening 2510 and a second rotating opening 2520 are provided on opposite sides of the rotating groove 250. A first rotating post 4130 and a second rotating post 4140 are provided on both sides of the actuating rod 410. The first rotating post 4130 is rotatably connected to the first rotating opening 2510, and the second rotating post 4140 is rotatably connected to the second rotating opening 2520, so that the actuating rod 410 can drive the magnetic end 4110 of the control component 400 to move up and down through the rotating groove 250.

[0034] like Figure 1 As shown, in one embodiment, the control component 400 further includes a magnetic suction member 430. The magnetic suction end 4110 and the actuating end 4120 are disposed at both ends of the actuating lever 410. The magnetic suction end 4110 has a magnetic suction cavity 4150, and the magnetic suction member 430 is disposed within the magnetic suction cavity 4150. In this embodiment, by having a magnetic suction cavity 4150 in the magnetic suction end 4110, and simultaneously disposing the magnetic suction end 4110 and the actuating end 4120 at both ends of the actuating lever 410, and placing the magnetic suction member 430 within the magnetic suction cavity 4150, when the actuating end 4120 of the actuating lever 410 moves, the magnetic suction end 4110 moves synchronously, thereby driving the magnetic suction member 430 within the magnetic suction cavity 4150 to move. The magnetic suction member 430 and the movable member 300 have a magnetic attraction effect, thereby the magnetic suction member 430 driving the movable member 300 to move within the control flow cavity 220.

[0035] like Figures 1 to 3As shown, the actuating lever 410 further includes an actuating lever 410 body and a rotating shaft 420. The rotating shaft 420 is disposed at the bottom of the actuating lever 410 body. The first end of the rotating shaft 420 is connected to the first rotating column 4130, and the second end of the rotating shaft 420 is connected to the second rotating column 4140. The rotating shaft 420 is disposed within the rotating groove 250. It can be understood that the rotating shaft 420 is disposed at the bottom of the actuating lever 410 body. Simultaneously, the first section of the rotating shaft 420 is connected to the first rotating column 4130, and the second end of the rotating shaft 420 is connected to the second rotating column 4140. When the actuating lever 410 body deflects upward, the rotating shaft 420 will drive the first rotating column 4130 and the second rotating column 4140 to rotate in the first rotating opening 2510 and the second rotating opening 2520, thereby causing the magnetic suction end 4110 to move upward or downward. Conversely, the actuating end 4120 will move in the opposite direction to the magnetic suction end 4110.

[0036] like Figure 1 and Figure 3 As shown, in one embodiment, the cup holder 200 includes a rotating platform 260, which is disposed within the rotating groove 250. The actuating rod 410 is mounted on the rotating platform, and the rotating shaft 420 abuts against the end face of the rotating platform. In this embodiment, the cup holder 200 is provided with a rotating platform 260, which is disposed within the rotating groove 250. The actuating rod 410 is mounted on the rotating platform 260. Because the rotating shaft 420 is disposed on the end face of the rotating platform 260, the rotating shaft 420 can rotate on the rotating platform 260 according to the rotational movement of the first rotating column 4130 and the second rotating column 4140, thereby realizing the up-and-down movement of the actuating rod 410 and driving the magnetic suction member 430 and the movable member 300 to move precisely within the control flow cavity 220.

[0037] like Figure 1As shown, the brewing mechanism 10 further includes a first sealing element 500, the cup holder 200 is provided with a sealing boss 270, the sealing boss 270 is provided on the side of the mounting port 210 and close to the control flow cavity 220, the first sealing element 500 is provided on the end face of the sealing boss 270, and the bottom of the filter cup 100 abuts against the first sealing element 500. It is understood that by providing a sealing boss 270 on the cup holder 200 and setting the first sealing member 500 on the end face of the sealing boss 270, the filter cup 100 is connected to the cup holder 200 by abutting against the first sealing member 500. Thus, when water enters the control flow chamber 220 from the filter chamber 110, because the first sealing member 500 is located between the filter cup 100 and the cup holder 200, the first sealing member 500 seals the gap between the filter cup 100 and the cup holder 200. The water will not flow out of the brewing mechanism 10 due to the gap caused by the connection between the filter cup 100 and the cup holder 200, thereby ensuring the overall sealing of the brewing mechanism 10.

[0038] like Figure 1 As shown, in one embodiment, the brewing mechanism 10 further includes a second sealing member 600. The cup holder 200 has an installation groove 280 located in the control flow cavity 220 and communicating with the water outlet 230. The first sealing member 500 covers the installation groove 280, and the movable member 300 abuts against the second sealing member 600. It can be understood that by providing an installation groove 280 in the cup holder 200, with the groove located in the control flow cavity 220, and the first sealing member 500 covering the groove, when the movable member 300 is blocked in the water outlet 230, the movable member 300 will contact the peripheral end face of the second sealing member 600. This ensures that when the movable member 300 is blocked in the water outlet 230, the seal between the second sealing member 600 and the water outlet 230 prevents water leakage from the water outlet 230, ensuring precise water flow control during the brewing process and improving the brewing effect.

[0039] like Figure 1 As shown, the projected shape of the movable component 300 is spherical. It can be understood that the spherical design of the movable component 300 allows for more flexible movement within the control flow cavity 220, enabling a closer fit to the outlet 230 and the second seal 600. This ensures maximum sealing performance during the movement of the movable component 300, effectively preventing water leakage. It should be noted that "projected shape of the movable component 300 is spherical" means that the movable component 300 itself is spherical in shape.

[0040] In the above embodiments, both the first seal 500 and the second seal 600 are made of elastic silicone.

[0041] like Figure 4 As shown, in one embodiment, the filter cup 100 is detachably connected to the cup holder 200. It can be understood that by detachably connecting the filter cup 100 to the cup holder 200, the filter cup 100 can be easily disassembled and installed, allowing users to conveniently replace or clean it as needed, further improving the practicality and ease of maintenance of the equipment.

[0042] This application also includes a brewing mechanism 10, comprising the brewing mechanism 10 described in any of the above embodiments. It is understood that by controlling the magnetic end 4110 and the actuating end 4120 of the control component 400, the position of the movable element 300 of the control flow chamber 220 can be changed, thereby controlling the water flow from the control flow chamber 220 to the outlet 230. This allows the brewing mechanism 10 to control the water flow rate and, according to specific needs, the water volume, based on the requirements of coffee or tea, to achieve the desired brewing dosage for specific brewing products.

[0043] Compared with the prior art, this disclosure has at least the following advantages:

[0044] By providing an installation port 210 in the cup holder and installing the filter cup 100 within it, the filter cup 100 can connect to an external water inlet, allowing water to flow through the filter chamber 110 to the installation port 210. Simultaneously, the filter chamber 110, installation port 210, control flow chamber 220, and outlet 230 are connected sequentially from top to bottom, allowing external water to flow through the filter chamber 110 into the control flow chamber 220. Meanwhile, a movable part 300 is positioned within the control flow chamber 220 and blocks the outlet 230, preventing water from flowing out of the control flow chamber 220 to the outlet 230 when water enters the control flow chamber 220. An movable opening 240 is provided on the outer peripheral wall of the cup holder body 200, allowing the actuating end to... The movable opening 240 is inserted and close to the outer peripheral wall of the control flow cavity 220. At the same time, the actuating end 4120 is rotatably connected to the outer protrusion of the cup holder 200, and the magnetic suction end 4110 has a certain magnetic attraction force, which can magnetically attract the movable part 300 placed in the flow control cavity. Since the actuating end 4120 is rotatably connected to the outer protrusion of the cup holder 200, when the actuating end 4120 moves downward, it drives the magnetic suction end 4110 and the movable part 300 to move upward, thereby causing the movable part 300 to move upward, and the water source flows out from the outlet 230 because the movable part 300 moves upward. When the actuating end 4120 moves upward, it drives the magnetic suction end 4110 and the movable part 300 to move downward, thereby causing the movable part 300 to block the outlet 230, thus sealing the outlet 230. By controlling the magnetic end 4110 and the actuating end 4120 of the control component 400, the position of the movable part 300 of the control flow chamber 220 can be changed, thereby controlling the water flow from the control flow chamber 220 to the outlet 230. The brewing mechanism 10 can control the water flow rate and the water volume according to specific needs through the control component 400, thereby meeting the specific brewing requirements of coffee or tea to achieve a specific brewing dosage.

[0045] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A brewing mechanism, comprising a filter cup and a cup holder, wherein the filter cup has a filtration chamber connected to an external water inlet, the cup holder has an installation port, the filter cup is installed in the installation port, and the filtration chamber is connected to the installation port; Its features are, The brewing mechanism also includes a movable component and a control assembly; the cup holder has a control flow cavity and a water outlet, and the filter cavity, the mounting port, the control flow cavity, and the water outlet are connected sequentially from top to bottom; the movable component is disposed in the control flow cavity and blocks the water outlet; a magnetic suction end is provided on the first side of the control assembly, and a toggle end is provided on the second side of the control assembly; an opening is provided on the outer peripheral wall of the cup holder, and the toggle end passes through the opening. The toggle end is disposed adjacent to the outer peripheral wall of the control flow cavity, and the toggle end is rotatably connected to the outer protrusion of the cup holder; when the toggle end moves downward, it drives the magnetic suction end and the movable component to move upward; when the toggle end moves upward, it drives the magnetic suction end and the movable component to move downward.

2. The brewing mechanism according to claim 1, characterized in that, The control component includes a toggle lever. The outer protrusion of the cup holder has a rotating groove. A first rotating opening and a second rotating opening are provided on opposite sides of the rotating groove. A first rotating post and a second rotating post are provided on both sides of the toggle lever. The first rotating post is rotatably connected to the first rotating opening, and the second rotating post is rotatably connected to the second rotating opening.

3. The brewing mechanism according to claim 2, characterized in that, The control component also includes a magnetic suction element. The magnetic suction end and the toggle end are disposed at both ends of the toggle lever. The magnetic suction end has a magnetic suction cavity, and the magnetic suction element is disposed in the magnetic suction cavity.

4. The brewing mechanism according to claim 2, characterized in that, The actuating lever includes an actuating lever body and a rotating shaft. The rotating shaft is disposed at the bottom of the actuating lever body. The first end of the rotating shaft is connected to the first rotating column, and the second end of the rotating shaft is connected to the second rotating column. The rotating shaft is disposed within the rotating groove.

5. The brewing mechanism according to claim 4, characterized in that, The cup holder includes a rotating platform disposed within the rotating groove, the actuating rod is mounted on the rotating platform, and the rotating shaft abuts against the end face of the rotating platform.

6. The brewing mechanism according to claim 1, characterized in that, The brewing mechanism also includes a first sealing element. The cup holder has a sealing boss, which is located at the mounting port and close to the control flow cavity. The first sealing element is located on the end face of the sealing boss, and the bottom of the filter cup abuts against the first sealing element.

7. The brewing mechanism according to claim 1, characterized in that, The brewing mechanism also includes a second sealing element. The cup holder is provided with an installation groove, which is located in the control flow cavity and is connected to the water outlet. The second sealing element covers the installation groove, and the movable element abuts against the second sealing element.

8. The brewing mechanism according to claim 1, characterized in that, The projected shape of the movable component is circular.

9. The brewing mechanism according to claim 1, characterized in that, The filter cup is detachably connected to the cup holder.

10. A brewing device, characterized in that, The brewing mechanism includes any one of claims 1 to 9.

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