Multifunctional valve body of coffee machine

Abstract

The utility model discloses a multifunctional valve body of a coffee machine, which belongs to the technical field of coffee machines and comprises a valve body, a valve body upper cover is mounted on one side of the valve body, a valve body frame is connected to the other side of the valve body, a knob is rotatably mounted on one side of the valve body frame, and a valve rod is mounted on the knob. A valve body assembly for controlling circulation of liquid or steam is arranged on the valve body, a control assembly is installed on one side of the valve body assembly, a simple channel conversion valve is arranged to be matched with an electronic control system control panel to work so as to distinguish water spraying and steam spraying, and therefore the function of a traditional complex and high-cost conversion valve is achieved. And the product structure and the cost structure are greatly optimized, so that the diversity of such products is enriched, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a multi-functional valve body of a coffee machine. Background Art

[0002] In general pressure coffee machines and other similar appliances, the function of the steering valve is to separate water, steam, etc. through internal multi-directional channels, making them independent and not affecting each other. For example, in a general Italian pressure coffee machine, by turning the knob for controlling water outlet and steam to the left or right, the functions of water outlet and steam outlet can be realized. However, this structure is relatively complex, the number of internal channels increases accordingly, and corresponding rotation direction induction switches are also required. Eventually, the structure of the steering valve is huge. The disadvantages of this structure have not been well solved at present: the structure of the traditional steering valve is too complex, and the associated accessories also need to be increased, resulting in too high overall cost of the product.

[0003] The problems existing in the above structure lead to high cost of the pressure coffee machine, exceeding the affordability of general consumers, making it impossible to popularize and be recognized by the public and the market. The lack of mature technology results in no market for the product and no potential to develop the market. Due to technical limitations, these problems cannot be solved within a certain period of time. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-functional valve body of a coffee machine to solve the problems put forward in the above background art. To achieve the above purpose, the utility model provides the following technical scheme: a multi-functional valve body of a coffee machine, including a valve body main body, a valve body upper cover is installed on one side of the valve body main body, a valve body frame is connected to the other side of the valve body main body, a knob is rotatably installed on one side of the valve body frame, a valve body assembly for controlling the flow of liquid or steam is arranged on the valve body main body, and a control assembly is installed on one side of the valve body assembly.

[0005] Preferably, the valve body assembly includes a cam rod, the cam rod is rotatably installed on the valve body main body, one end of the cam rod is connected to the knob, a top rod is installed above the cam rod, a first spring is sleeved on the outer wall of the top rod, the top rod is slidably installed inside the valve body main body, a sealing ring is installed at the bottom of the top rod, and a top rod cover is installed at the top of the top rod.

[0006] Preferably, a first channel and a second channel are arranged inside the valve body main body, an inlet is arranged on one side of the valve body main body, the inlet communicates with the inside of the first channel, the top rod is installed at one end of the second channel, and the sealing ring is arranged between the top rod and the second channel.

[0007] Preferably, a rotation prevention rod is installed below the cam rod. A second spring is connected to the bottom of the rotation prevention rod. A fixed cover is installed at the bottom of the rotation prevention rod. The bottom of the second spring is connected to the inner wall of the fixed cover.

[0008] Preferably, the control assembly includes a micro switch. The micro switch is installed on one side of the valve body away from the knob. A micro switch contact is installed on one side of the micro switch. A micro switch spring piece is installed between the micro switch contact and the cam rod. A control board is connected to one side of the micro switch. Buttons are provided on the control board.

[0009] Preferably, a plurality of different cam contacts are provided on the outer wall of the cam rod.

[0010] Preferably, when the knob is rotated to a certain angle, the inlet communicates with the inner wall of the second channel.

[0011] Technical effects and advantages of the present utility model: In the valve body assembly, the inlet and the first channel are in a normally open state. Water passing through this channel needs to have a certain pressure to be ejected. The inlet and the second channel are in a normally closed state. When the knob is rotated to a certain angle, the cam rod composed of multiple functional cams is linked with the knob. One group of cams lifts the ejector rod, making the sealing ring ineffective, so that the second channel can communicate with the inlet. At the same time, another group of cams touches the micro switch, generating a signal and feeding it back to the electronic control system. At this time, water vapor can be ejected through the second channel. If water needs to be ejected, just press the button on the control board to issue an instruction to eject water, and the water is ejected through the second channel. That is, jetting and water spraying are respectively carried out through one channel, and the functions of a traditional turning valve are realized through two different signal feedbacks. Compared with the prior art, the structure and operation are greatly simplified, and the user experience is improved. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the cross-sectional schematic diagram of the present utility model;

[0014] Figure 3 is the partial cross-sectional schematic diagram of the first channel of the present utility model;

[0015] Figure 4 is the partial cross-sectional schematic diagram of the second channel of the present utility model;

[0016] Figure 5 is Figure 1 the cross-sectional schematic diagram when the knob is in the normal state in;

[0017] Figure 6 is Figure 1 the right view when the knob is in the normal state in;

[0018] Figure 7 is Figure 1 A schematic cross-sectional view when the middle knob is turned to a specified position;

[0019] Figure 8 is Figure 1 A right view when the middle knob is turned to a specified position.

[0020] In the figure: 1. Valve body main body; 2. Knob; 3. Valve body frame; 4. Valve body upper cover; 5. Fixed cover; 6. Cam rod; 7. Microswitch; 8. Thumb rod cover; 9. Thumb rod; 10. First spring; 11. Sealing ring; 12. Second spring; 13. First channel; 14. Second channel; 15. Inlet; 16. Microswitch elastic piece; 17. Microswitch contact; 18. Control board; 19. Button; 20. Anti-rotation rod. Specific implementation manners

[0021] In order to make the implementation means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection or a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements.

[0022] Embodiment 1

[0023] As Figure 1-4 shown, a multi-functional valve body of a coffee machine includes a valve body main body 1, a valve body upper cover 4 is installed on one side of the valve body main body 1, a valve body frame 3 is connected to the other side of the valve body main body 1, a knob 2 is rotatably installed on one side of the valve body frame 3, and a valve body assembly for controlling the flow of liquid or steam is provided on the valve body main body 1.

[0024] Preferably, the valve body assembly includes a cam rod 6 which is rotatably mounted on the valve body main body 1. One end of the cam rod 6 is connected to the knob 2. A plurality of different cam contacts are provided on the outer wall of the cam rod 6. A push rod 9 is mounted above the cam rod 6. A first spring 10 is sleeved on the outer wall of the push rod 9. The push rod 9 is slidably mounted inside the valve body main body 1. A sealing ring 11 is mounted at the bottom of the push rod 9. A push rod cover is mounted at the top of the push rod 9. A first channel 13 and a second channel 14 are provided inside the valve body main body 1. An inlet 15 is provided on one side of the valve body main body 1. The inlet 15 communicates with the inside of the first channel 13. The push rod 9 is mounted at one end of the second channel 14. The sealing ring 11 is arranged between the push rod 9 and the second channel 14. When the knob 2 is rotated to a certain angle, the inlet 15 communicates with the inner wall of the second channel 14. The entire valve body assembly includes one inlet 15, two channel outlets. The knob 2 is connected to the valve body assembly. The valve body assembly has a cam rod 6 assembly. There are multiple cams on the cam rod 6, and each cam represents a different function. When the knob is in the natural state, the first channel 13 of the valve body assembly is normally open. The water flowing through this channel needs to have a certain pressure to flow out to the funnel. When performing coffee extraction, the water usually needs to be pressurized to increase the water temperature and keep it constant. The pressurized water can flow out through the first channel 13 and into the funnel to facilitate coffee extraction and improve the coffee extraction effect. The second channel 14 is normally closed. When the knob 2 is rotated to a certain angle, at this time, the knob 2 is linked with the cam rod 6. Due to the deflection of the multiple functional cams on the cam rod 6, the push rod 9 is lifted, so that the sealing ring 11 on the push rod 9 fails to contact all sealing surfaces and a gap with a certain distance is generated. The originally normally closed second channel 14 is opened, and the inlet 15 of the valve body main body 1 is connected to the second channel 14. The structure is simple and the product cost can be reduced.

[0025] Further, a rotation stop rod 20 is mounted below the cam rod 6. A second spring 12 is connected to the bottom of the rotation stop rod 20. A fixed cover 5 is mounted at the bottom of the rotation stop rod 20. The bottom of the second spring 12 is connected to the inner wall of the fixed cover 5. Cam contacts corresponding to the rotation stop rod 20 are provided on the cam rod 6. When the knob 2 is rotated until the cam contact touches the rotation stop rod 20, the rotation stop rod 20 can be contracted upward under the drive of the second spring 12 below, so that the cam rod 6 cannot continue to rotate to one side, and the cam rod 6 is limited.

[0026] Embodiment 2

[0027] Based on Embodiment 1, the further improvement lies in that, as Figure 5-8A multi-functional valve body of a coffee machine as shown. A control component is installed on one side of the valve body component. The control component includes a micro switch 7. The micro switch 7 is installed on the side of the valve body main body 1 away from the knob 2. A micro switch contact 17 is installed on one side of the micro switch 7. A micro switch spring piece 16 is installed between the micro switch contact 17 and the cam rod 6. One side of the micro switch 7 is connected to a control board 18. A button 19 is provided on the control board 18. When the knob 2 rotates to a certain angle, the inlet 15 is communicated with the second channel 14. A set of cams touches the micro switch 7, generates a signal and feeds it back to the electronic control system. At this time, water vapor can be discharged through the second channel 14. At this time, only by pressing the button 19 on the control board 18 can water spraying be carried out, so that water enters the second channel 14. The water vapor and water flow are sprayed out through the second channel 14 in sequence, and thus the water spraying function can be controlled through one button 19 and the knob 2, so as to realize the functional requirements of spraying water and steam through one channel, optimize the operation and save costs.

[0028] The technological process and working principle of the present utility model are as follows: In the valve body component, the inlet 15 and the first channel 13 are in a normally open state. The water passing through this channel needs to have a certain pressure to be sprayed out. The inlet 15 and the second channel 14 are in a normally closed state. When the knob 2 rotates to a certain angle, the cam rod 6 composed of multiple groups of functional cams is linked with the knob 2. One group of cams lifts the ejector rod 9, making the sealing ring 11 ineffective, and then the second channel 14 can be communicated with the inlet 15. At the same time, another group of cams touches the micro switch 7, generates a signal and feeds it back to the electronic control system. At this time, water vapor can be sprayed out through the second channel 14. However, due to the pressure not meeting the requirements of the first channel 13, it cannot be sprayed out from the first channel 13; if water spraying is required, only by pressing the button 19 on the control board 18 can the instruction of water spraying be realized, so that water is sprayed out through the second channel 14. Due to insufficient pressure, it cannot be sprayed out from the first channel 13; that is, air spraying and water spraying are respectively carried out through one channel, and the functions of the traditional steering valve are realized by two different signal feedbacks, which greatly simplifies the structure and operation and improves the user experience.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A multi-functional valve body of a coffee machine, comprising a valve body main body (1), characterized in that: On one side of the valve body main body (1), a valve body upper cover (4) is installed. On the other side of the valve body main body (1), a valve body frame (3) is connected. On one side of the valve body frame (3), a knob (2) is rotatably installed. A valve body assembly for controlling the flow of liquid or steam is provided on the valve body main body (1), and a control assembly is installed on one side of the valve body assembly.

2. The multi-functional valve body of a coffee machine according to claim 1, characterized in that: The valve body assembly includes a cam rod (6). The cam rod (6) is rotatably installed on the valve body main body (1). One end of the cam rod (6) is connected to the knob (2). Above the cam rod (6), a push rod (9) is installed. A first spring (10) is sleeved on the outer wall of the push rod (9). The push rod (9) is slidably installed inside the valve body main body (1). A sealing ring (11) is installed at the bottom of the push rod (9). A push rod cover (8) is installed at the top of the push rod (9). The push rod cover (8) is connected to the valve body main body (1).

3. The multifunctional valve body of a coffee machine according to claim 2, characterized in that: A first channel (13) and a second channel (14) are provided inside the valve body main body (1). An inlet (15) is provided on one side of the valve body main body (1). The inlet (15) communicates with the inside of the first channel (13). The push rod (9) is installed at one end of the second channel (14). The sealing ring (11) is arranged between the push rod (9) and the second channel (14).

4. The multi-functional valve body of a coffee machine according to claim 2, characterized in that: A rotation-stop rod (20) is installed below the cam rod (6). The bottom of the rotation-stop rod (20) is connected to a second spring (12). A fixed cover (5) is installed at the bottom of the rotation-stop rod (20). The bottom of the second spring (12) is connected to the inner wall of the fixed cover (5).

5. A multifunctional valve body of a coffee machine according to claim 1, characterized in that: The control assembly includes a micro switch (7). The micro switch (7) is installed on the side of the valve body main body (1) away from the knob (2). A micro switch contact (17) is installed on one side of the micro switch (7). A micro switch spring piece (16) is installed between the micro switch contact (17) and the cam rod (6). A control board (18) is connected to one side of the micro switch (7). A key (19) is provided on the control board (18).

6. A multi-functional valve body of a coffee machine according to claim 3, characterized in that: Multiple different cam contacts are provided on the outer wall of the cam rod (6).

7. A multi-functional valve body of a coffee machine according to claim 3, characterized in that: When the knob (2) is rotated to a certain angle, the inlet (15) communicates with the inner wall of the second channel (14).

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