Pressure regulating valve and coffee machine

Abstract

The utility model relates to the technical field of coffee machines, in particular to a pressure regulating valve and a coffee machine, the pressure regulating valve comprises a pressure regulating valve seat, the pressure regulating valve seat is provided with a liquid inlet and a liquid outlet, and the pressure regulating valve seat is provided with a movable cavity; the movable plug is movably arranged in the movable cavity, and the movable plug can move relative to the liquid inlet so as to connect or disconnect a channel between the liquid inlet and the liquid outlet; the driving piece is arranged on the pressure regulating valve seat, at least part of the driving piece is located in the movable cavity, and the driving piece can move relative to the movable cavity; the elastic part is located in the movable cavity, the two ends of the elastic part abut against the position between the movable plug and the driving part, the driving part is used for adjusting the deformation state of the elastic part, accurate control over the liquid pressure can be achieved by adjusting the deformation state of the elastic part, and therefore the stability and consistency of liquid flowing are guaranteed; and the pressure regulating valve can regulate the pressure of liquid flowing out according to requirements, so that different taste requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a pressure regulating valve and a coffee machine. Background Art

[0002] As a common beverage making device, the main function of a coffee machine is to mix ground coffee powder with water or other liquids to make delicious coffee. However, during the coffee brewing process, the control of liquid pressure is crucial to the taste and quality of the coffee. In existing coffee machines, the liquid pressure often cannot be adjusted in real time according to the coffee powder and brewing requirements, resulting in unstable coffee taste and quality, which cannot meet the taste requirements of different users. Utility Model Content

[0003] Based on this, it is necessary to provide a pressure regulating valve and a coffee machine in order to solve the problem that the pressure of the liquid in the coffee machine cannot be adjusted in real time according to the brewing requirements.

[0004] The first aspect of the present application provides a pressure-regulating valve, comprising a pressure-regulating valve seat, the pressure-regulating valve seat being provided with a liquid inlet and a liquid outlet, the pressure-regulating valve seat being provided with a movable cavity; a movable plug, the movable plug being movably arranged in the movable cavity, the movable plug being able to move relative to the liquid inlet to connect or disconnect the channel between the liquid inlet and the liquid outlet; a driving member, the driving member being arranged on the pressure-regulating valve seat, the driving member being at least partially located in the movable cavity and being able to move relative to the movable cavity; an elastic member, the elastic member being located in the movable cavity, and the two ends of the elastic member being abutted between the movable plug and the driving member, the driving member being used to adjust the deformation state of the elastic member.

[0005] The present application discloses a pressure regulating valve, which includes a pressure regulating valve seat, a movable plug, a driving member and an elastic member. The deformation state of the elastic member is adjusted by the driving member, thereby changing the elastic force that the liquid needs to overcome when flowing through the channel to achieve the pressure regulating process. Specifically, the movable plug is located in the movable cavity of the pressure regulating valve seat and can move relative to the liquid inlet. In this way, when the liquid flows from the liquid inlet to the liquid outlet, it must pass through the channel of the pressure regulating valve seat, and the position of the movable plug determines the opening or closing of the channel. The channel between the liquid inlet and the liquid outlet can be connected or disconnected by the movement of the movable plug. By arranging the elastic member in the movable cavity and between the movable plug and the driving member, the driving member adjusts the deformation state of the elastic member by moving relative to the movable cavity, and the deformation state of the elastic member will affect the size of the elastic force that the liquid needs to overcome when flowing through the channel. By adjusting the position of the movable plug and the deformation state of the elastic member, the liquid flow rate can be precisely controlled, thereby ensuring the stability and consistency of the liquid flow, so that the pressure regulating valve can adjust the pressure of the liquid outflow according to the needs, and adapt to the needs under different working conditions. For example, in a coffee machine, the pressure of the liquid can be adjusted according to the required coffee concentration and taste, thereby affecting the coffee making effect. Moreover, the pressure regulating valve disclosed in the present application has a simple structure and reliable operation. At the same time, due to the presence of the elastic member, it can withstand large pressure changes, has good durability and stability, and can be adjusted according to different working conditions and requirements, thereby improving the performance and efficiency of the equipment.

[0006] In one embodiment, the elastic member includes a spring, one of the movable plug and the driving member is provided with a convex column, one end of the spring is sleeved on the convex column, the other of the movable plug and the driving member is provided with a limiting cavity, and the other end of the spring extends into the limiting cavity. Through the design of the convex column and the limiting cavity, the convex column provides a fixing point for one end of the spring, and the limiting cavity provides a fixing point for the other end of the spring, thereby ensuring the connection stability between the spring and the movable plug and the driving member, reducing loosening, displacement or breakage caused by external force, thereby improving the accuracy of the pressure regulation process, and ensuring the stability and reliability of the pressure regulating valve. Moreover, since the compression and release of the spring are limited by the convex column and the limiting cavity, the reaction speed of the spring is accelerated, so that the pressure regulating valve can respond to external pressure changes more quickly, thereby improving the pressure regulation efficiency.

[0007] In one embodiment, the driving member includes a driving end and a compression end, one end of the compression end is movably disposed on the pressure regulating valve seat, the compression end is at least partially located in the active cavity, one end of the elastic member away from the active plug abuts against the compression end, the driving end is disposed on the other end of the compression end, and the driving end is used to drive the compression end to move along the active cavity. The compression end can move along the active cavity by the movement of the driving end on the compression end, so that the compression state of the spring can be changed, thereby adjusting the elastic force that needs to be overcome when the liquid flows from the liquid inlet to the liquid outlet, thereby realizing the pressure regulation process. As the compression end moves, the elastic member will be compressed or released. Specifically, when the compression end moves toward the movable plug, the elastic member is compressed, increasing the elastic force, so that the liquid passing through the liquid inlet needs to overcome a larger elastic force to push the movable plug open and flow to the liquid outlet, thereby increasing the liquid outlet pressure; when the compression end moves away from the movable plug, the elastic member is released, reducing the elastic force, so that the liquid passing through the liquid inlet overcomes a smaller elastic force to push the movable plug open and flow to the liquid outlet, thereby reducing the liquid outlet pressure. In this way, through the precise control of the compression end by the driving end, the pressure regulation process can be accurately regulated, and the pressure regulation accuracy of the pressure regulating valve can be improved. At the same time, the driving end can quickly and flexibly control the compression end, so that the pressure regulating valve can respond to external pressure changes more quickly, thereby improving dynamic responsiveness.

[0008] Of course, the elastic member may also be made of other elastic members capable of producing elastic deformation, such as elastic rubber and other materials.

[0009] In one embodiment, the pressure regulating valve seat comprises a valve seat body and a valve cover, the valve cover is arranged on the valve seat body, the valve seat body is provided with the active cavity, the valve cover is provided with an adapter hole connected with the active cavity, the compression end is nested in the adapter hole, and under the drive of the driving end, the compression end can move relative to the adapter hole. Specifically, the valve seat body is provided with an active cavity, which is connected with the valve cover through the adapter hole, the compression end is located in the adapter hole, and can move relative to the adapter hole under the driving action of the driving end, so that when the driving end applies force, the compression end will move accordingly, change the compression state of the spring, and thus achieve the purpose of pressure regulation. The pressure regulating valve seat adopts a combined structure of the valve seat body and the valve cover, so that the structure of the entire pressure regulating valve is more compact, occupies less space, and is suitable for equipment with limited space; the compression end is nested in the adapter hole, and through the drive of the driving end, the compression end can achieve flexible movement relative to the adapter hole, making the pressure regulation process more flexible and accurate.

[0010] In one of the embodiments, the inner wall surface of the adapter hole is provided with a first thread, and the outer surface of the compression end is provided with a second thread, and the first thread is adapted to the second thread. Through the adaptation of the first thread and the second thread, the compression end is tightly connected to the adapter hole, forming a reliable mechanical structure, reducing the possibility of failure of the pressure regulating valve due to loosening or falling off, and further ensuring the stable movement of the compression end in the active cavity. Moreover, the threaded connection makes the movement of the compression end more precise and controllable, which helps to achieve precise adjustment of the pressure regulating valve and improves the pressure regulation accuracy of the pressure regulating valve. Furthermore, by controlling the driving end, the compression end is driven to rotate in the adapter hole. Due to the design of the thread, the position of the compression end can move up and down accordingly according to the rotation direction, thereby adjusting the compression amount of the elastic member, so that the liquid outlet pressure of the pressure regulating valve can be changed as needed.

[0011] In one embodiment, the driving end includes a driving rod, and the driving rod is arranged on the compression end, and the driving rod is used to drive the compression end to rotate relative to the adapter hole. The driving rod is connected to the compression end, and the rotational movement of the compression end can be achieved by controlling the driving rod. This rotational movement can change the position of the compression end relative to the adapter hole. In this way, the pressure regulating valve can be adjusted by rotating the compression end by the driving rod. When the driving rod rotates, the compression end rotates accordingly, changing its position in the active cavity, thereby adjusting the elastic deformation state of the elastic member pressed between the compression end and the active plug, thereby achieving the pressure regulating function. Furthermore, the convenience and flexibility of operation are also improved, making the pressure regulating valve easier to use.

[0012] In another embodiment, the driving end includes a knob, which is arranged on the compression end and is used to drive the compression end to rotate relative to the adapter hole. The knob is connected to the compression end, and the compression end can be rotated by rotating the knob. This rotational movement can change the position of the compression end relative to the adapter hole, thereby adjusting the elastic deformation state of the elastic member pressed between the compression end and the movable plug. The design of the knob makes the adjustment operation of the pressure regulating valve more convenient. The user can adjust the position of the compression end by rotating the knob according to actual needs to meet the pressure regulation requirements in different scenarios.

[0013] In one embodiment, the compression end includes a fixing portion, a connecting portion and a mounting portion, wherein the fixing portion and the mounting portion are respectively arranged at the two axial ends of the connecting portion, the fixing portion is fixedly connected to the driving end, the connecting portion is movably connected to the pressure regulating valve seat, the mounting portion extends into the movable cavity, and the mounting portion is provided with a limiting cavity so that the part of the elastic member abutting against the mounting portion is limited in the space of the limiting cavity. By locating the fixing portion at one axial end of the connecting portion, it is used to fix the driving end and ensure a stable connection between the compression end and the driving end. The connecting portion is located on the pressure regulating valve seat and can be movably connected to the pressure regulating valve seat, so that the compression end can move freely on the pressure regulating valve seat, thereby realizing the elastic deformation state of the adjustment elastic member. Furthermore, the position of the elastic member is limited by the limiting cavity in the mounting portion, so as to ensure the movement of the elastic member within a certain range, and to avoid the displacement of the elastic member under the force of the compression end and affect the accuracy of the pressure adjustment.

[0014] In one embodiment, a first sealing member is further included, wherein the first sealing member is embedded in the outer surface of the mounting portion, and the first sealing member abuts against the outer surface of the mounting portion and the inner surface of the active cavity. By providing the first sealing member, when the pressure regulating valve is working, liquid is effectively prevented from leaking from between the mounting portion and the active cavity, thereby ensuring the sealing and stability of the pressure regulating valve.

[0015] Optionally, the first sealing member is a sealing ring, which has a simple structure and a good sealing effect.

[0016] In one embodiment, a second seal is further included, and the second seal is arranged on the movable plug, and the second seal abuts between the side wall of the liquid inlet and the movable plug to seal the liquid inlet. Specifically, the second seal is installed on the movable plug, and it abuts between the side wall of the liquid inlet and the movable plug, so that the sealing between the movable plug and the liquid inlet can be enhanced, ensuring that the liquid will not leak out from the liquid inlet when there is no pressure regulating valve and no liquid is inlet. Specifically, when the movable plug is in a closed state, the second seal can fit tightly on the side wall of the liquid inlet to form an effective sealing barrier, so that the sealing of the liquid inlet can be guaranteed, and the liquid can be prevented from leaking through the liquid inlet of the pressure regulating valve when the pressure regulating valve is not needed. In addition, the setting of the second seal also enhances the durability and reliability of the pressure regulating valve. Generally, the second seal is sealed with materials such as silicone, so that the wear and damage between the movable plug and the side wall of the liquid inlet can be reduced each time, and its service life can be extended.

[0017] In one embodiment, the pressure regulating valve seat is provided with a first end and a second end in the axial direction, the first end of the pressure regulating valve seat is provided with the driving member, the movable cavity is provided in the axial direction of the first end, the side wall of the first end is provided with the liquid outlet, the second end of the pressure regulating valve seat is provided with a liquid inlet channel, the second end is radially penetrated to form the liquid inlet channel, and the side wall of the liquid inlet channel is provided with the liquid inlet. Specifically, the driving member is provided at the first end of the pressure regulating valve seat, and the movable cavity is also provided in the axial direction of the first end, so that the elastic member can move in the axial direction of the first end of the pressure regulating valve seat under the drive of the driving member. The second end of the pressure regulating valve seat is provided with a liquid inlet channel, which is formed by radially penetrating the second end. Liquid is taken in at one end of the liquid inlet channel, and the other end of the liquid inlet channel is connected to other pipelines. When the other end of the liquid inlet channel, that is, the other pipelines are closed, liquid can enter through the liquid inlet port provided on the side wall of the liquid inlet channel. During this process, the user can adjust the driving member to change the deformation state of the elastic member, so that the liquid overcomes the elastic force of the elastic member and drives the movable plug to open the liquid inlet port. During this process, the movable plug also moves along the axial direction of the first end of the pressure regulating valve seat, and connects the liquid inlet port with the liquid outlet port, thereby increasing different liquid outlet pressures for the connecting pipeline at the liquid outlet port.

[0018] A second aspect of the present application provides a coffee machine, comprising a housing assembly; a brewing device, the brewing device being arranged on the housing assembly; and a liquid supply system, the liquid supply system adopting a pressure regulating valve as described in any of the above embodiments, the liquid outlet of the pressure regulating valve being connected to the brewing device via a pipeline, and the pressure regulating valve being used to adjust the pressure of the liquid flowing to the brewing device.

[0019] The second aspect of the present application provides a coffee machine, in which the housing assembly serves as a support and protection structure for the entire coffee machine, not only providing an aesthetic appearance, but also ensuring the stability and safety of the internal components. The brewing device is the core part of the coffee machine, responsible for mixing a liquid, usually water, with coffee powder to make coffee. This device may vary according to different coffee machine designs, but generally includes one or more nozzles for spraying water evenly on the coffee powder. The liquid supply system delivers water or other liquids to the brewing device, specifically, a liquid supply system water pump and one or more pipelines, wherein the liquid supply system uses a pressure regulating valve of any of the above embodiments to adjust the pressure of the liquid flowing to the brewing device. By adjusting the pressure, the liquid pressure of the coffee powder extraction during the brewing process can be further controlled, thereby ensuring the taste and quality of the coffee, so that the coffee machine can adapt to different types of coffee powder and different brewing requirements, improving the flexibility and practicality of the coffee machine, and providing users with a more convenient and diverse coffee making experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1is a cross-sectional view of a pressure regulating valve according to an embodiment of the present application;

[0021] Figure 2 This is a cross-sectional view of a pressure regulating valve according to another embodiment of the present application.

[0022] The corresponding relationship between the reference numerals and the component names is as follows:

[0023] 1 pressure regulating valve seat, 101 liquid inlet, 102 liquid outlet, 103 movable cavity, 104 liquid inlet channel, 11 valve seat body, 12 valve cover;

[0024] 2 movable plugs;

[0025] 3 driving member, 301 limiting cavity, 31 driving end, 32 compression end, 321 fixing part, 322 connecting part, 323 mounting part;

[0026] 4 elastic parts;

[0027] 5. convex column portion;

[0028] 6 first seal;

[0029] 7 Second seal. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model may also be implemented in other ways different from those described herein. Therefore, the protection scope of the utility model is not limited to the specific embodiments disclosed below.

[0032] The pressure regulating valve and coffee machine described in some embodiments of the utility model are described below with reference to the accompanying drawings.

[0033] Embodiment 1: Figure 1 and Figure 2As shown, the present embodiment discloses a pressure regulating valve, comprising: a pressure regulating valve seat 1, wherein the pressure regulating valve seat 1 is provided with a liquid inlet 101 and a liquid outlet 102, and the pressure regulating valve seat 1 is provided with an active cavity 103; a movable plug 2, wherein the movable plug 2 is movably arranged in the active cavity 103, and the movable plug 2 can move relative to the liquid inlet 101 to connect or disconnect the channel between the liquid inlet 101 and the liquid outlet 102; a driving member 3, wherein the driving member 3 is arranged on the pressure regulating valve seat 1, and the driving member 3 is at least partially located in the active cavity 103 and can move relative to the active cavity 103; an elastic member 4, wherein the elastic member 4 is located in the active cavity 103, and both ends of the elastic member 4 abut between the movable plug 2 and the driving member 3, and the driving member 3 is used to adjust the deformation state of the elastic member 4.

[0034] The present application discloses a pressure regulating valve, which includes a pressure regulating valve seat 1, a movable plug 2, a driving member 3 and an elastic member 4. The deformation state of the elastic member 4 is adjusted by the driving member 3, thereby changing the elastic force that the liquid needs to overcome when flowing through the channel to achieve the pressure regulating process. Specifically, the movable plug 2 is located in the movable cavity 103 of the pressure regulating valve seat 1 and can move relative to the liquid inlet 101. In this way, when the liquid flows from the liquid inlet 101 to the liquid outlet 102, it must pass through the channel of the pressure regulating valve seat 1, and the position of the movable plug 2 determines the opening or closing of the channel. Through the movement of the movable plug 2, the channel between the liquid inlet 101 and the liquid outlet 102 can be connected or disconnected. By arranging the elastic member 4 in the movable cavity 103 and between the movable plug 2 and the driving member 3, the driving member 3 adjusts the deformation state of the elastic member 4 by moving relative to the movable cavity 103, and the deformation state of the elastic member 4 will affect the size of the elastic force that the liquid needs to overcome when flowing through the channel. By adjusting the position of the movable plug 2 and the deformation state of the elastic member 4, precise control of the liquid pressure can be achieved, so that the pressure regulating valve can adjust the pressure of the liquid outflow according to the demand and adapt to the needs under different working conditions. For example, in a coffee machine, the pressure of the liquid can be adjusted according to the required coffee concentration and taste, thereby affecting the coffee making effect. Moreover, the pressure regulating valve disclosed in the present application has a simple structure and reliable operation. At the same time, due to the presence of the elastic member, it can withstand large pressure changes, has good durability and stability, and can be adjusted according to different working conditions and requirements, thereby improving the performance and efficiency of the equipment.

[0035] For example, in the above-mentioned pressure regulation process, when a higher liquid outlet pressure is required, the space between the two ends of the elastic member can be compressed by the driving member. In this way, the elastic member is in a high compression state, and the movable plug that is against the elastic member will be subjected to a greater reaction force from the spring. A stronger hydraulic pressure is required for the liquid to enter by pushing open the movable plug, thereby increasing the liquid outlet pressure.

[0036] like Figure 1As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the elastic member 4 includes a spring, one of the movable plug 2 and the driving member 3 is provided with a convex column 5, one end of the spring is sleeved on the convex column 5, the other of the movable plug 2 and the driving member 3 is provided with a limiting cavity 301, and the other end of the spring extends into the limiting cavity 301. Through the design of the convex column 5 and the limiting cavity 301, the convex column 5 provides a fixing point for one end of the spring, and the limiting cavity 301 provides a fixing point for the other end of the spring, thereby ensuring the connection stability between the spring and the movable plug 2 and the driving member 3, reducing loosening, displacement or breakage caused by external force, thereby improving the accuracy of the pressure regulation process, and ensuring the stability and reliability of the pressure regulating valve. Moreover, since the compression and release of the spring are limited by the convex column 5 and the limiting cavity 301, the reaction speed of the spring is accelerated, so that the pressure regulating valve can respond to external pressure changes more quickly, and the pressure regulating efficiency is improved.

[0037] In addition to the features of the above-mentioned embodiment, the present embodiment further defines that: the driving member 3 includes a driving end 31 and a compression end 32, one end of the compression end 32 is movably disposed on the pressure regulating valve seat 1, the compression end 32 is at least partially located in the active cavity 103, the end of the elastic member 4 away from the active plug 2 abuts against the compression end 32, the driving end 31 is disposed on the other end of the compression end 32, and the driving end 31 is used to drive the compression end 32 to move along the active cavity 103. The compression end 32 can move along the active cavity 103 through the movement of the driving end 31 on the compression end 32, so that the compression state of the spring can be changed, thereby adjusting the elastic force that needs to be overcome when the liquid flows from the liquid inlet 101 to the liquid outlet 102, and realizing the pressure regulation process. As the compression end 32 moves, the elastic member 4 will be compressed or released. Specifically, when the compression end 32 moves toward the movable plug 2, the elastic member 4 is compressed, increasing the elastic force, so that the liquid passing through the liquid inlet 101 needs to overcome a larger elastic force to push open the movable plug 2 and flow to the liquid outlet 102, thereby increasing the liquid outlet pressure; when the compression end 32 moves in the direction away from the movable plug 2, the elastic member 4 is released, reducing the elastic force, so that the liquid passing through the liquid inlet 101 can overcome a smaller elastic force to push open the movable plug 2 and flow to the liquid outlet 102, thereby reducing the liquid outlet pressure. In this way, through the precise control of the compression end 32 by the driving end 31, the precise regulation of the pressure regulation process can be achieved, and the pressure regulation accuracy of the pressure regulating valve is improved. At the same time, the driving end 31 can quickly and flexibly control the compression end 32, so that the pressure regulating valve can respond to external pressure changes more quickly, thereby improving dynamic responsiveness.

[0038] Of course, the elastic member 4 may also be made of other elastic members 4 that can produce elastic deformation, such as elastic rubber and other materials.

[0039] In addition to the features of the above-mentioned embodiment, the present embodiment further defines that: the pressure regulating valve seat 1 includes a valve seat body 11 and a valve cover 12, the valve cover 12 is arranged on the valve seat body 11, the valve seat body 11 is provided with the active cavity 103, the valve cover 12 is provided with an adapter hole connected with the active cavity 103, the compression end 32 is nested in the adapter hole, and under the drive of the driving end 31, the compression end 32 can move relative to the adapter hole. Specifically, the valve seat body 11 is provided with an active cavity 103, which is connected with the valve cover 12 through the adapter hole, the compression end 32 is located in the adapter hole, and is driven by the driving end 31 to move relative to the adapter hole, so that when the driving end 31 applies force, the compression end 32 will move accordingly, changing the compression state of the spring, thereby achieving the purpose of pressure regulation. The pressure regulating valve seat 1 adopts a combined structure of a valve seat body 11 and a valve cover 12, so that the structure of the entire pressure regulating valve is more compact, occupies less space, and is suitable for equipment with limited space; the compression end 32 is nested in the adapter hole, and through the drive of the driving end 31, the compression end 32 can be flexibly moved relative to the adapter hole, making the pressure regulation process more flexible and accurate.

[0040] In addition to the features of the above-mentioned embodiment, the present embodiment further defines that: the inner wall surface of the adapter hole is provided with a first thread, the outer surface of the compression end 32 is provided with a second thread, and the first thread is adapted to the second thread. Through the adaptation of the first thread and the second thread, the compression end 32 is tightly connected to the adapter hole, forming a reliable mechanical structure, reducing the possibility of failure of the pressure regulating valve due to loosening or falling off, and further ensuring the stable movement of the compression end 32 in the active chamber 103. Moreover, the threaded connection makes the movement of the compression end 32 more precise and controllable, which helps to achieve precise adjustment of the pressure regulating valve and improves the pressure regulation accuracy of the pressure regulating valve. Further, by controlling the driving end 31, the compression end 32 is driven to rotate in the adapter hole. Due to the design of the thread, the position of the compression end 32 can move up and down accordingly according to the rotation direction, thereby adjusting the compression amount of the elastic member 4, so that the liquid outlet pressure of the pressure regulating valve can be changed as needed.

[0041] like Figure 1As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the driving end 31 includes a driving rod, the driving rod is arranged on the compression end 32, and the driving rod is used to drive the compression end 32 to rotate relative to the adapter hole. The driving rod is connected to the compression end 32, and the rotational movement of the compression end 32 can be achieved by controlling the driving rod. This rotational movement can change the position of the compression end 32 relative to the adapter hole. In this way, the pressure regulating valve can be adjusted by rotating the compression end 32 by the driving rod. When the driving rod rotates, the compression end 32 rotates accordingly, changing its position in the active chamber 103, thereby adjusting the elastic deformation state of the elastic member 4 pressed between the compression end 32 and the active plug 2, and realizing the pressure regulating function. Furthermore, the convenience and flexibility of operation are also improved, making the pressure regulating valve easier to use.

[0042] like Figure 2 As shown, in other embodiments, the driving end 31 includes a knob, which is arranged on the compression end 32, and the knob is used to drive the compression end 32 to rotate relative to the adapter hole. The knob is connected to the compression end 32, and the compression end 32 can be rotated by rotating the knob. This rotational movement can change the position of the compression end 32 relative to the adapter hole, thereby adjusting the elastic deformation state of the elastic member 4 pressed between the compression end 32 and the movable plug 2. The design of the knob makes the adjustment operation of the pressure regulating valve more convenient. The user can adjust the position of the compression end 32 by rotating the knob according to actual needs to meet the pressure regulation requirements in different scenarios.

[0043] For example, the driving member may be directly connected to the driving motor, and the motor drives the movement of the driving member to achieve automatic voltage regulation.

[0044] In addition to the features of the above embodiment, the present embodiment further defines that: the compression end 32 includes a fixing portion 321, a connecting portion 322 and a mounting portion 323, the fixing portion 321 and the mounting portion 323 are respectively arranged at two axial ends of the connecting portion 322, the fixing portion 321 is fixedly connected to the driving end 31, the connecting portion 322 is movably connected to the pressure regulating valve seat 1, the mounting portion 323 extends into the movable chamber 103, and the mounting portion 323 is provided with a limiting chamber 301, so that the part of the elastic member 4 abutting against the mounting portion 323 is limited in the space of the limiting chamber 301. By locating the fixing portion 321 at one axial end of the connecting portion 322, it is used to fix the driving end 31, thereby ensuring a stable connection between the compression end 32 and the driving end 31, and the connecting portion 322 is located on the pressure regulating valve seat 1 and can be movably connected to the pressure regulating valve seat 1, so that the compression end 32 can move freely on the pressure regulating valve seat 1, thereby realizing the adjustment of the elastic deformation state of the elastic member 4. Furthermore, the position of the elastic member 4 is limited by the limiting cavity 301 in the mounting portion 323, thereby ensuring the movement of the elastic member 4 within a certain range and preventing the elastic member 4 from shifting under the force of the compression end 32 and affecting the accuracy of the pressure adjustment.

[0045] In addition to the features of the above embodiment, the present embodiment is further defined as follows: a first sealing member 6 is further included, the first sealing member 6 is nested in the outer surface of the mounting portion 323, and the first sealing member 6 abuts against the outer surface of the mounting portion 323 and the inner surface of the active cavity 103. By providing the first sealing member 6, when the pressure regulating valve is working, liquid is effectively prevented from leaking from between the mounting portion 323 and the active cavity 103, thereby ensuring the sealing and stability of the pressure regulating valve.

[0046] Optionally, the first sealing member 6 is a sealing ring, which has a simple structure and good sealing effect.

[0047] In addition to the features of the above-mentioned embodiment, the present embodiment further defines: it also includes a second sealing member 7, the second sealing member 7 is arranged on the movable plug 2, and the second sealing member 7 abuts between the side wall of the liquid inlet 101 and the movable plug 2 to seal the liquid inlet 101. Specifically, the second sealing member 7 is installed on the movable plug 2, and it abuts between the side wall of the liquid inlet 101 and the movable plug 2, so that the sealing between the movable plug 2 and the liquid inlet 101 can be enhanced to ensure that the liquid will not leak out from the liquid inlet 101 when there is no pressure regulating valve and no liquid is flowing in. Specifically, when the movable plug 2 is in a closed state, the second sealing member 7 can fit tightly against the side wall of the liquid inlet 101 to form an effective sealing barrier, so that the sealing of the liquid inlet 101 can be ensured to prevent the liquid from leaking through the liquid inlet 101 of the pressure regulating valve when the pressure regulating valve is not needed. In addition, the provision of the second seal 7 also enhances the durability and reliability of the pressure regulating valve. Generally, the second seal 7 is sealed with materials such as silicone, thereby reducing the wear and damage between the movable plug 2 and the side wall of the liquid inlet 101 each time, thereby extending its service life.

[0048] In addition to the features of the above-mentioned embodiments, this embodiment further defines that: the pressure regulating valve seat 1 is axially provided with a first end and a second end, the first end of the pressure regulating valve seat 1 is provided with the driving member 3, the active cavity 103 is axially provided along the first end, the side wall of the first end is provided with the liquid outlet 102, the second end of the pressure regulating valve seat 1 is provided with a liquid inlet channel 104, the second end is radially penetrated to form the liquid inlet channel 104, and the side wall of the liquid inlet channel 104 is provided with the liquid inlet 101. Specifically, the driving member 3 is provided at the first end of the pressure regulating valve seat 1, and the active cavity 103 is also axially provided along the first end, so that, driven by the driving member 3, the elastic member 4 can move axially along the first end of the pressure regulating valve seat 1. The second end of the pressure regulating valve seat 1 is provided with a liquid inlet channel 104, as shown in the attached Figure 2 As shown, the liquid inlet channel 104 is formed by radial penetration along the second end, and liquid is taken in at one end of the liquid inlet channel 104, and the other end of the liquid inlet channel 104 is connected to other pipelines. When the other end of the liquid inlet channel 104, that is, other pipelines are closed, liquid can enter through the liquid inlet 101 set on the side wall of the liquid inlet channel 104. In this process, the user can adjust the driving member 3 to change the deformation state of the elastic member 4, so that the liquid overcomes the elastic force of the elastic member 4 and drives the movable plug 2 to open the liquid inlet 101. In this process, the movable plug 2 also moves along the axial direction of the first end of the pressure regulating valve seat 1, and makes the liquid inlet 101 communicate with the liquid outlet 102, so as to increase different liquid outlet pressures for the connecting pipeline at the liquid outlet 102.

[0049] Embodiment 2: This embodiment discloses a coffee machine, comprising a shell assembly; a brewing device, wherein the brewing device is arranged on the shell assembly; and a liquid supply system, wherein the liquid supply system adopts a pressure regulating valve as described in any of the above embodiments, wherein the liquid outlet 102 of the pressure regulating valve is connected to the brewing device through a pipeline, and the pressure regulating valve is used to adjust the pressure of the liquid flowing to the brewing device.

[0050] The second aspect of the present application provides a coffee machine, in which the housing assembly serves as a support and protection structure for the entire coffee machine, not only providing an aesthetic appearance, but also ensuring the stability and safety of the internal components. The brewing device is the core part of the coffee machine, responsible for mixing a liquid, usually water, with coffee powder to make coffee. This device may vary according to different coffee machine designs, but generally includes one or more nozzles for spraying water evenly on the coffee powder. The liquid supply system delivers water or other liquids to the brewing device, specifically, a liquid supply system water pump and one or more pipelines, wherein the liquid supply system uses a pressure regulating valve of any of the above embodiments to adjust the pressure of the liquid flowing to the brewing device. By adjusting the pressure, the liquid pressure of the coffee powder extraction during the brewing process can be further controlled, thereby ensuring the taste and quality of the coffee, so that the coffee machine can adapt to different types of coffee powder and different brewing requirements, improving the flexibility and practicality of the coffee machine, and providing users with a more convenient and diverse coffee making experience.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pressure regulating valve, characterized in that: include: A pressure regulating valve seat (1), wherein the pressure regulating valve seat (1) is provided with a liquid inlet (101) and a liquid outlet (102), and the pressure regulating valve seat (1) is provided with a movable cavity (103); a movable plug (2), the movable plug (2) being movably disposed in the movable cavity (103), and the movable plug (2) being movable relative to the liquid inlet (101) so as to connect or disconnect the passage between the liquid inlet (101) and the liquid outlet (102); A driving member (3), the driving member (3) being arranged on the pressure regulating valve seat (1), the driving member (3) being at least partially located in the active chamber (103) and being movable relative to the active chamber (103); An elastic member (4), the elastic member (4) is located in the movable cavity (103), and two ends of the elastic member (4) are abutted between the movable plug (2) and the driving member (3), and the driving member (3) is used to adjust the deformation state of the elastic member (4).

2. The pressure regulating valve according to claim 1, characterized in that: The elastic member (4) comprises a spring, one of the movable plug (2) and the driving member (3) is provided with a convex column portion (5), one end of the spring is sleeved on the convex column portion (5), the other of the movable plug (2) and the driving member (3) is provided with a limiting cavity (301), and the other end of the spring extends into the limiting cavity (301).

3. The pressure regulating valve according to claim 1, characterized in that: The driving member (3) comprises a driving end (31) and a compression end (32); one end of the compression end (32) is movably arranged on the pressure regulating valve seat (1); the compression end (32) is at least partially located in the movable chamber (103); one end of the elastic member (4) away from the movable plug (2) abuts against the compression end (32); the driving end (31) is arranged on the other end of the compression end (32); and the driving end (31) is used to drive the compression end (32) to move along the movable chamber (103).

4. The pressure regulating valve according to claim 3, characterized in that: The pressure regulating valve seat (1) comprises a valve seat body (11) and a valve cover (12); the valve cover (12) is arranged on the valve seat body (11); the valve seat body (11) is provided with the active cavity (103); the valve cover (12) is provided with an adapter hole connected to the active cavity (103); the compression end (32) is nested in the adapter hole; under the drive of the driving end (31), the compression end (32) can move relative to the adapter hole.

5. The pressure regulating valve according to claim 4, characterized in that: The inner wall surface of the matching hole is provided with a first thread, the outer surface of the compression end (32) is provided with a second thread, and the first thread is matched with the second thread; and / or The driving end (31) comprises a driving rod, the driving rod is arranged on the compression end (32), and the driving rod is used to drive the compression end (32) to rotate relative to the adapting hole; or The driving end (31) comprises a knob, which is arranged on the compression end (32) and is used to drive the compression end (32) to rotate relative to the adapter hole.

6. The pressure regulating valve according to claim 3, characterized in that: The compression end (32) comprises a fixing portion (321), a connecting portion (322) and a mounting portion (323); the fixing portion (321) and the mounting portion (323) are respectively arranged at two axial ends of the connecting portion (322); the fixing portion (321) is fixedly connected to the driving end (31); the connecting portion (322) is movably connected to the pressure regulating valve seat (1); the mounting portion (323) extends into the movable cavity (103); and the mounting portion (323) is provided with a limiting cavity (301) so that the portion of the elastic member (4) abutting against the mounting portion (323) is limited to the space of the limiting cavity (301).

7. The pressure regulating valve according to claim 6, characterized in that: It also includes a first sealing member (6), wherein the first sealing member (6) is nested in the outer surface of the mounting portion (323), and the first sealing member (6) abuts against the outer surface of the mounting portion (323) and the inner surface of the active cavity (103).

8. The pressure regulating valve according to any one of claims 1 to 7, characterized in that: It also comprises a second sealing member (7), wherein the second sealing member (7) is arranged on the movable plug (2), and the second sealing member (7) abuts between the side wall of the liquid inlet (101) and the movable plug (2) to seal the liquid inlet (101).

9. The pressure regulating valve according to any one of claims 1 to 7, characterized in that: The pressure regulating valve seat (1) is provided with a first end and a second end in the axial direction, the first end of the pressure regulating valve seat (1) is provided with the driving member (3), the movable chamber (103) is arranged in the axial direction of the first end, the side wall of the first end is provided with the liquid outlet (102), the second end of the pressure regulating valve seat (1) is provided with a liquid inlet channel (104), the second end is radially penetrated to form the liquid inlet channel (104), and the side wall of the liquid inlet channel (104) is provided with the liquid inlet (101).

10. A coffee machine, characterized in that: include: Housing components; A brewing device, wherein the brewing device is arranged on the housing assembly; A liquid supply system, wherein the pressure regulating valve as described in any one of claims 1 to 9 is used in the liquid supply system, the liquid outlet of the pressure regulating valve is connected to the brewing device through a pipeline, and the pressure regulating valve is used to adjust the pressure of the liquid flowing to the brewing device.

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