Coffee maker with a water quantity control structure for dosing
By combining a flow meter and PLC controller with a miniature vacuum pump and sealing airbag design, the problem of quantitative water supply in coffee machines has been solved, enabling quantitative extraction water control and preventing brewing head contamination, thus improving the performance of coffee machines.
Patent Information
- Application Number
- CN202522107843.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Existing coffee machines lack a metered water supply system, making it impossible to accurately control the amount of water used for brewing coffee, which affects the taste of the coffee.
A flow meter and PLC controller are used in conjunction with a miniature vacuum pump and a sealing airbag. The flow meter measures the amount of hot water, and when the preset amount is reached, the miniature vacuum pump is controlled to inflate the sealing airbag to seal the boiling head, thereby achieving a quantitative supply of hot water and preventing dust from entering.
It enables precise control of water extraction in coffee machines, maintaining consistent coffee flavor while preventing contamination of the brewing head, thus improving the device's practicality.
Smart Images
Figure CN224671307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee brewing machine technology, and more specifically, to a coffee machine with a quantitative extraction water volume control structure. Background Technology
[0002] With the development of the times, coffee has become increasingly popular and loved by the public. People are no longer satisfied with manually brewing coffee, so coffee brewing machines have been designed to automatically brew coffee. Coffee brewing machines brew coffee quickly and efficiently, saving a lot of time.
[0003] However, some existing fully automatic coffee machines do not have a corresponding metered water supply system. This makes it impossible to accurately control the amount of water used for brewing coffee, which in turn makes it impossible to maintain the best flavor of the brewed coffee.
[0004] Therefore, a coffee machine with a quantitative extraction water control structure is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a coffee machine with a quantitative extraction water volume control structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a coffee machine with a quantitative extraction water volume control structure, comprising a coffee machine body, a top seat mounted on the top of the coffee machine body, a brewing head mounted on the bottom wall of the top seat, a sealing airbag connected inside the brewing head, a gas delivery pipe connected to and communicating with the sealing airbag on the side wall of the brewing head, a miniature vacuum pump installed inside the top seat, the inlet and outlet of the miniature vacuum pump connected to one end of the gas delivery pipe, a connector connected to the bottom of the brewing head, a flow meter installed on the brewing head, and a PLC controller electrically connected to the flow meter installed inside the top seat.
[0007] Preferably, an adjustment knob is connected to the side wall of the top seat, a control panel is provided on the front surface of the top seat, a steam rod is provided on the bottom wall of the top seat and on the left side of the brewing head, and a hot water pipe is provided on the bottom wall of the top seat and on the right side of the brewing head.
[0008] Preferably, the coffee machine body has a mounting cavity on its rear side wall, a water tank is installed in the mounting cavity, one end of the brewing head is connected to the water tank via a water pump, the water tank has a water inlet, and two clearance grooves are provided on the side wall of the coffee machine body on both sides of the mounting cavity.
[0009] Preferably, the coffee machine body is connected to a base at its bottom, and a water storage tank is formed on the upper surface of one end of the base.
[0010] Preferably, a shelf is fixedly installed inside the water storage tank, and a detachable filter plate is placed inside the water storage tank and above the shelf. The filter plate has multiple filter holes evenly spaced on its surface.
[0011] Preferably, the base has four adjustable feet on its bottom wall, which are distributed at the four corners of the base.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] Compared with existing technologies, this coffee machine with a quantitative extraction water control structure can measure the hot water flowing out of the brewing head through a flow meter. When the preset amount is reached, the PLC controller controls the micro vacuum pump to start. The micro vacuum pump inflates the sealing airbag inside the brewing head through a gas delivery pipe, thereby sealing the brewing head and stopping the supply of hot water. At the same time, sealing the brewing head by the sealing airbag not only stops the supply of hot water but also prevents dust from entering the brewing head and contaminating it, thus improving the practicality of the device. Attached Figure Description
[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the brewing head of this utility model.
[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the brewing head and sealing airbag of this utility model.
[0017] Figure 4 This is a second-view three-dimensional structural diagram of the present invention.
[0018] The attached diagram is labeled as follows: 1. Coffee machine body; 2. Top base; 3. Adjustment knob; 4. Control panel; 5. Brewing head; 6. Flow meter; 7. Gas delivery pipe; 8. Sealing air bladder; 9. Miniature vacuum pump; 10. PLC controller; 11. Connector; 12. Steam wand; 13. Hot water pipe; 14. Mounting cavity; 15. Water tank; 16. Water inlet; 17. Clearance groove; 18. Base; 19. Adjustable feet; 20. Water tank; 21. Shelf; 22. Filter plate; 23. Filter holes. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1
[0021] As attached Figures 1 to 4 The coffee machine shown includes a coffee machine body 1, a top seat 2 mounted on the top of the coffee machine body 1, a brewing head 5 mounted on the bottom wall of the top seat 2, a sealing airbag 8 connected inside the brewing head 5, a gas delivery pipe 7 connected to and communicating with the sealing airbag 8 on the side wall of the brewing head 5, a miniature vacuum pump 9 installed inside the top seat 2, the inlet and outlet of the miniature vacuum pump 9 connected to one end of the gas delivery pipe 7, a connector 11 connected to the bottom of the brewing head 5, a flow meter 6 mounted on the brewing head 5, and a PLC controller 10 electrically connected to the flow meter 6 installed inside the top seat 2.
[0022] In use, the device measures the hot water flowing out of the boiling head 5 using the flow meter 6. When the preset amount is reached, the PLC controller 10 controls the micro vacuum pump 9 to start. The micro vacuum pump 9 inflates the sealing airbag 8 inside the boiling head 5 through the gas delivery pipe 7, thereby sealing the boiling head 5 and stopping the supply of hot water. At the same time, sealing the boiling head 5 with the sealing airbag 8 not only stops the supply of hot water but also prevents dust from entering the boiling head 5 and contaminating it, thus improving the practicality of the device.
[0023] Example 2
[0024] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:
[0025] In a preferred embodiment, an adjustment knob 3 is connected to the side wall of the top seat 2, a control panel 4 is provided on the front surface of the top seat 2, a steam rod 12 is provided on the bottom wall of the top seat 2 and to the left of the brewing head 5, and a hot water pipe 13 is provided on the bottom wall of the top seat 2 and to the right of the brewing head 5. In use, the steam rod 12 and the hot water pipe 13 can be controlled by adjusting the knob 3.
[0026] In a preferred embodiment, a mounting cavity 14 is provided on the rear side wall of the coffee machine body 1, and a water tank 15 is provided in the mounting cavity 14. The brewing head 5 is connected to the water tank 15 via a water pump. The water tank 15 is provided with a water inlet 16. Two clearance grooves 17 are provided on the side wall of the coffee machine body 1 on both sides of the mounting cavity 14. In use, the water pump draws out the hot water in the water tank 15 through the brewing head 5 and discharges it to extract and brew coffee. Then, drinking water can be added to the water tank 15.
[0027] In a preferred embodiment, a base 18 is connected to the bottom of the coffee machine body 1. A water tank 20 is formed on the upper surface of one end of the base 18, and a shelf 21 is fixedly set in the water tank 20. A removable filter plate 22 is placed in the water tank 20 and above the shelf 21. Multiple filter holes 23 are formed at equal intervals on the surface of the filter plate 22. Finally, an adjustable foot 19 is set at each of the four corners of the bottom wall of the base 18. Impurities are filtered through the filter holes 23 on the surface of the filter plate 22, and water is introduced into the water tank 20 for unified collection. When it is necessary to clean the water in the water tank 20, the filter plate 22 can be removed directly, and then the water in the water tank 20 can be cleaned.
[0028] In this embodiment, the flow meter 6, the miniature vacuum pump 9, and the PLC controller 10 are all commercially available devices known to those skilled in the art. The model can be selected or customized according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not go into detail here.
[0029] The working process of this utility model is as follows: First, when in use, the hot water flowing out of the boiling head 5 can be measured by the flow meter 6. Then, when the preset amount is reached, the micro vacuum pump 9 is turned on by the PLC controller 10. The micro vacuum pump 9 inflates the sealing airbag 8 set in the boiling head 5 through the gas delivery pipe 7, and then seals the boiling head 5, thereby stopping the supply of hot water.
[0030] At the same time, by sealing the airbag 8 to block the brewing head 5, the hot water supply is stopped, and dust is prevented from entering the brewing head 5 and contaminating it, thus improving the practicality of the device. The above is the working principle of a coffee machine with a quantitative extraction water control structure.
Claims
1. A coffee machine with a quantitative extraction water control structure, comprising a coffee machine body (1), characterized in that: The coffee machine body (1) has a top seat (2) installed on its top. The bottom wall of the top seat (2) has a brewing head (5). The brewing head (5) is connected to a sealing airbag (8). The side wall of the brewing head (5) is connected to a gas delivery pipe (7) that communicates with the sealing airbag (8). The top seat (2) has a micro vacuum pump (9) installed inside. The inlet and outlet of the micro vacuum pump (9) are connected to one end of the gas delivery pipe (7). The bottom end of the brewing head (5) is connected to a connector (11). The brewing head (5) has a flow meter (6) installed on it. The top seat (2) has a PLC controller (10) that is electrically connected to the flow meter (6).
2. A coffee machine with a quantitative extraction water control structure according to claim 1, characterized in that: An adjustment knob (3) is connected to the side wall of the top seat (2), a control panel (4) is provided on the front surface of the top seat (2), a steam rod (12) is provided on the bottom wall of the top seat (2) and on the left side of the brewing head (5), and a hot water pipe (13) is provided on the bottom wall of the top seat (2) and on the right side of the brewing head (5).
3. A coffee machine with a quantitative extraction water control structure according to claim 1, characterized in that: The coffee machine body (1) has an installation cavity (14) on its rear side wall. A water tank (15) is installed in the installation cavity (14). One end of the brewing head (5) is connected to the water tank (15) via a water pump. A water inlet (16) is provided on the water tank (15). Two clearance grooves (17) are provided on the side wall of the coffee machine body (1) on both sides of the installation cavity (14).
4. A coffee machine with a quantitative extraction water control structure according to claim 1, characterized in that: The coffee machine body (1) is connected to a base (18) at the bottom end, and a water tank (20) is provided on the upper surface of one end of the base (18).
5. A coffee machine with a quantitative extraction water control structure according to claim 4, characterized in that: A shelf (21) is fixedly installed inside the water storage tank (20). A detachable filter plate (22) is placed inside the water storage tank (20) and above the shelf (21). Multiple filter holes (23) are equally spaced on the surface of the filter plate (22).
6. A coffee machine with a quantitative extraction water control structure according to claim 4, characterized in that: The base (18) has four adjustable feet (19) on its bottom wall, and the four adjustable feet (19) are distributed at the four corners of the bottom wall of the base (18).