A coffee machine control device
Patent Information
- Application Number
- CN202522333237.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-04
AI Technical Summary
[0003]旋钮式控制装置往往需要用户手动旋转至开启位置,并在使用后手动旋回关闭位置,操作不够便捷,且容易因用户遗忘复位而导致能源浪费或设备干烧风险
[0026]1、用户只需单向扳动手柄即可启动设备,松手后机构在扭簧作用下自动复位关闭,操作流程极大简化,且从根本上避免了因遗忘关闭带来的安全隐患。
Smart Images

Figure CN224792136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machine technology, and in particular to a coffee machine control device. Background Technology
[0002] Existing coffee machines typically control the output of hot water and steam via knobs or buttons;
[0003] Rotary knob controls often require users to manually rotate them to the on position and then manually rotate them back to the off position after use. This is inconvenient and can easily lead to energy waste or the risk of the device burning out if the user forgets to reset it. While push-button controls are simple to operate, they usually lack mechanical feedback, and frequent pressing can cause wear and tear on the switching components, affecting their lifespan.
[0004] Therefore, it is necessary to design a coffee machine control device that is easy to operate, can automatically reset, and has a durable structure. Utility Model Content
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0006] A coffee machine control device, characterized in that it includes a rotating fixed plate (1), a rotating shaft (2), a handle assembly (3), a micro switch (4), and a rotation reset mechanism (5);
[0007] The rotating fixing plate (1) is used to fix it to the outer shell (6) of the coffee machine; a bearing seat (11) is provided in the middle of the rotating fixing plate (1), and a through shaft hole (111) is provided on the bearing seat (11);
[0008] The middle part of the rotating shaft (2) is rotatably inserted into the shaft hole (111), and one end of it located outside the outer shell (6) is connected to the handle assembly (3), while the other end located inside the outer shell (6) is provided with the rotation reset mechanism (5).
[0009] The handle assembly (3) includes a handle portion (31) for being driven by an external force and a rotating connection portion (32);
[0010] The rotating connection part (32) is provided with a rotating shaft insertion part (321) that is non-rotatably connected to the rotating shaft (2); a drive rod (33) parallel to the rotating shaft (2) is also fixedly provided in the rotating connection part (32);
[0011] One end of the drive rod (33) is fixedly connected to the rotating connection part (32), and the other end passes through the clearance hole (100) provided on the outer shell (6) and the rotating fixing plate (1) and is connected to the rotating reset mechanism (5); when the handle assembly (3) rotates, it can drive the drive rod (33) to act on the micro switch (4);
[0012] The micro switch (4) is mounted on the rotating fixed plate (1) and is used to electrically connect with the control module inside the coffee machine;
[0013] The rotation reset mechanism (5) is used to drive the handle assembly (3) to automatically rotate in the opposite direction and reset after the handle assembly (3) is driven to rotate by an external force.
[0014] Preferably, the rotation reset mechanism (5) includes a torsion spring (51), a locking nut (52), and a locking screw (53);
[0015] The locking nut (52) is threaded to the end of the rotating shaft (2);
[0016] The torsion spring (51) is sleeved on the rotating shaft (2) and located between the locking nut (52) and the shaft seat (11);
[0017] One end of the torsion spring (51) is fixedly connected to the rotating fixing plate (1) by a locking screw (53), and the other end is fixedly connected to the end of the drive rod (33) by another locking screw (53).
[0018] Preferably, a limiting member (21) is provided on the rotating shaft (2) at a position between the rotation reset mechanism (5) and the shaft seat (11) to restrict the axial disengagement of the rotating shaft (2);
[0019] The rotating shaft (2) is provided with an annular groove (22) for the limiting member (21) to engage.
[0020] Preferably, the rotating connection part (32) is a cover-shaped structure with an opening facing the outer shell (6), and a rotating guide plate (34) is provided at its opening and connected to the outer shell (6) and the rotating fixing plate (1) by screws;
[0021] The opening edge of the rotating connection part (32) is in contact with the rotating guide plate (34).
[0022] Preferably, the outer side of the drive rod (33) is fitted with a rubber sleeve (331) for shock absorption and noise reduction.
[0023] Preferably, the micro switch (4) is connected to the rotating fixing plate (1) via a mica gasket (41).
[0024] Preferably, there are two control devices, symmetrically distributed on both sides of the outer casing (6), which are used to control the steam output and hot water output of the coffee machine, respectively.
[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0026] 1. Users can start the device by simply pulling the handle in one direction. After releasing the handle, the mechanism will automatically reset and shut down under the action of the torsion spring. The operation process is greatly simplified, and the safety hazards caused by forgetting to shut it down are fundamentally avoided.
[0027] 2. The drive rod, as the core linkage component, transmits the operating force to the micro switch and torsion spring simultaneously, achieving precise synchronization between mechanical transmission and electrical triggering. It has a simple structure, reliable operation, and long service life.
[0028] 3. The mechanical operation provides a clear and precise feel, and the rubber sleeves for shock absorption and the guide plate for stability effectively reduce noise and shaking, improving the overall quality and user experience of the product.
[0029] 4. Mica gaskets enhance electrical safety, limit components ensure mechanical stability, and torsion spring reset mechanisms provide stable performance, all of which together ensure the long-term reliable operation of the device.
[0030] 5. A dual-module side-by-side design can be adopted to meet the needs of multi-functional coffee machines for independent control of steam and hot water. The modular design facilitates production, assembly and maintenance. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of this utility model;
[0032] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;
[0033] Figure 3 This is an exploded view of the present invention;
[0034] Wherein: 1-rotating fixed plate, 11-shaft seat, 2-rotating shaft, 21-limiting component, 22-annular groove, 3-handle assembly, 31-handle part, 32-rotating connection part, 321-rotating shaft insertion part, 33-drive rod, 331-rubber sleeve, 34-rotating guide plate, 4-micro switch, 41-mica gasket, 5-rotating reset mechanism, 51-torsion spring, 52-locking nut, 53-locking screw, 6-outer shell, clearance hole 100, shaft hole 111. Detailed Implementation
[0035] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model 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 of this utility model.
[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.
[0037] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0038] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:
[0039] like Figure 1-3 As shown, a coffee machine control device includes a rotating fixed plate (1), a rotating shaft (2), a handle assembly (3), a micro switch (4), and a rotation reset mechanism (5);
[0040] The rotating fixing plate (1) is used to fix it to the outer shell (6) of the coffee machine; a bearing seat (11) is provided in the middle of the rotating fixing plate (1), and a through shaft hole (111) is provided on the bearing seat (11);
[0041] The middle part of the rotating shaft (2) is rotatably inserted into the shaft hole (111), and one end of it located outside the outer shell (6) is connected to the handle assembly (3), while the other end located inside the outer shell (6) is provided with the rotation reset mechanism (5).
[0042] The handle assembly (3) includes a handle portion (31) for being driven by an external force and a rotating connection portion (32);
[0043] The rotating connection part (32) is provided with a rotating shaft insertion part (321) that is non-rotatably connected to the rotating shaft (2); a drive rod (33) parallel to the rotating shaft (2) is also fixedly provided in the rotating connection part (32);
[0044] One end of the drive rod (33) is fixedly connected to the rotating connection part (32), and the other end passes through the clearance hole (100) provided on the outer shell (6) and the rotating fixing plate (1) and is connected to the rotating reset mechanism (5); when the handle assembly (3) rotates, it can drive the drive rod (33) to act on the micro switch (4);
[0045] The micro switch (4) is mounted on the rotating fixed plate (1) and is used to electrically connect with the control module inside the coffee machine;
[0046] The rotation reset mechanism (5) is used to drive the handle assembly (3) to automatically rotate in the opposite direction and reset after the handle assembly (3) is driven to rotate by an external force.
[0047] In this embodiment, by setting a special handle (31), an ergonomic operating point is provided for the user, and the operation method is intuitive (rotation), which is better than the traditional pressing or complicated knob, thus improving the efficiency of use.
[0048] In this embodiment, the rotating shaft (2) serves as the core transmission component, precisely transmitting the rotational motion of the handle to the interior; the rotating fixing plate (1) and its bearing seat (11) provide a stable and reliable mounting base for the entire device, ensuring the smoothness of the rotating shaft (2) during rotation and avoiding shaking and jamming.
[0049] In this embodiment, during the rotation of the drive rod (33), its body directly acts on the micro switch (4), realizing the conduction and disconnection of the circuit and controlling the coffee machine to work; this method is more direct and reliable than flexible connection (such as steel wire).
[0050] In this embodiment, the drive rod (33) simultaneously drives the rotation reset mechanism (5) to store energy; when the external force is removed, the mechanism (5) releases energy and pushes the entire handle assembly (3) and the rotating shaft (2) back to the initial position through the drive rod (33); this ensures that there is no need for secondary operation and it automatically shuts off, which greatly improves safety and convenience, and fundamentally avoids the risk of energy waste or equipment dry burning caused by forgetting to shut it off.
[0051] Furthermore, such as Figure 1-3 As shown, the rotation reset mechanism (5) includes a torsion spring (51), a locking nut (52), and a locking screw (53);
[0052] The locking nut (52) is threaded to the end of the rotating shaft (2);
[0053] The torsion spring (51) is sleeved on the rotating shaft (2) and located between the locking nut (52) and the shaft seat (11);
[0054] One end of the torsion spring (51) is fixedly connected to the rotating fixing plate (1) by a locking screw (53), and the other end is fixedly connected to the end of the drive rod (33) by another locking screw (53).
[0055] In this embodiment, the torsion spring (51) uses its own torsional elastic deformation to provide the restoring force, which has stable performance and long service life; the locking nut (52) is threaded to the end of the shaft (2), which not only plays an axial positioning role, but also allows for fine adjustment of the preload of the torsion spring (51) by adjusting its tightness, thereby adjusting the magnitude and feel of the restoring force within a certain range.
[0056] In this embodiment, the two ends of the torsion spring (51) are reliably fixed to the rotating fixed plate (1) (stationary end) and the drive rod (33) (moving end) respectively by two locking screws (53), ensuring the accuracy of the reset action.
[0057] Furthermore, such as Figure 1-3 As shown, a limiting member (21) is provided on the rotating shaft (2) at a position between the rotating reset mechanism (5) and the shaft seat (11) to restrict the axial disengagement of the rotating shaft (2);
[0058] The rotating shaft (2) is provided with an annular groove (22) for the limiting member (21) to engage.
[0059] In this embodiment, the limiting member (21) (such as a retaining ring) cooperates with the annular groove (22) on the rotating shaft (2) to form a reliable axial constraint; this effectively prevents the rotating shaft (2) from dislodging from the bearing seat (11) inward or outward when vibrating or accidentally pulled, avoids mechanism failure, and significantly improves the mechanical safety level and service life of the product.
[0060] Furthermore, such as Figure 1-3 As shown, the rotating connection part (32) is a cover-shaped structure with an opening facing the outer shell (6), and a rotating guide plate (34) is provided at its opening and connected to the outer shell (6) and the rotating fixing plate (1) by screws;
[0061] The opening edge of the rotating connection part (32) is in contact with the rotating guide plate (34).
[0062] In this embodiment, the rotating guide plate (34) is fixed by screws and contacts the opening edge of the rotating connection (32) to form an additional radial support point; this limits the radial runout of the handle assembly (3) during rotation, making its rotation more stable and smooth, eliminating the cheap feeling, and improving the operation quality of high-end products.
[0063] Furthermore, such as Figure 1-3As shown, the outer side of the drive rod (33) is fitted with a rubber sleeve (331) for shock absorption and noise reduction.
[0064] In this embodiment, the rubber sleeve (331) fitted on the outside of the drive rod (33) plays a role in buffering and shock absorption when the drive rod strikes the contact of the micro switch (4); this significantly reduces the mechanical impact sound of "click", making the product run more quietly, which meets the modern home appliance's pursuit of a quiet experience.
[0065] Furthermore, such as Figure 1-3 As shown, the micro switch (4) is connected to the rotating fixed plate (1) through a mica gasket (41).
[0066] In this embodiment, the mica gasket (41) has good insulation and heat resistance; it isolates the metal shell of the micro switch (4) from the rotating fixed plate (1), which on the one hand prevents the possibility of short circuit, and on the other hand isolates the heat transferred from the inside of the machine to the fixed plate, protecting the micro switch (4) from high temperature and extending its electrical life.
[0067] Furthermore, such as Figure 1-3 As shown, there are two control devices, symmetrically distributed on both sides of the coffee machine casing (6), which are used to control the steam output and hot water output of the coffee machine, respectively.
[0068] In this embodiment, by setting up two control devices to independently control the output of steam and hot water, the physical partitioning of functions is realized; users can intuitively select to operate the left or right handle as needed, with clear logic, avoiding the cumbersome operation of switching functions with a single controller, and greatly improving the convenience and professionalism of use.
[0069] The working process is as follows: When the user applies external force to turn the handle (31) clockwise (or counterclockwise), the force is transmitted through the rotating shaft (2) and the rotating connection (32), causing the drive rod (33) to rotate synchronously; the drive rod (33) produces two simultaneous actions:
[0070] 1) The rubber sleeve (331) on its rod presses the contact of the micro switch (4) to close it, and the signal is transmitted to the main control board of the coffee machine to start the heating or steam function;
[0071] 2) Its end pulls one end of the torsion spring (51), causing the torsion spring (51) to undergo torsional deformation around the rotating shaft (2) and store elastic potential energy. When the user releases the hand, the restoring force of the torsion spring (51) drives the drive rod (33) to move in the opposite direction, thereby driving the entire handle assembly (3) and the rotating shaft (2) to accurately return to the initial position. The drive rod (33) disengages from the micro switch (4), the circuit is disconnected, and the device stops working.
[0072] In practical applications, one set of this device can be installed on each side of the coffee machine, with the left side controlling the steam solenoid valve and the right side controlling the hot water solenoid valve, achieving independent and intuitive dual control.
[0073] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.
Claims
1. A coffee machine control device, characterized in that, It includes a rotating fixed plate (1), a rotating shaft (2), a handle assembly (3), a micro switch (4), and a rotation reset mechanism (5); The rotating fixing plate (1) is used to fix it to the outer shell (6) of the coffee machine; a bearing seat (11) is provided in the middle of the rotating fixing plate (1), and a through shaft hole (111) is provided on the bearing seat (11); The middle part of the rotating shaft (2) is rotatably inserted into the shaft hole (111), and one end of it located outside the outer shell (6) is connected to the handle assembly (3), while the other end located inside the outer shell (6) is provided with the rotation reset mechanism (5). The handle assembly (3) includes a handle portion (31) for being driven by an external force and a rotating connection portion (32); The rotating connection part (32) is provided with a rotating shaft insertion part (321) that is non-rotatably connected to the rotating shaft (2); a drive rod (33) parallel to the rotating shaft (2) is also fixedly provided in the rotating connection part (32); One end of the drive rod (33) is fixedly connected to the rotating connection part (32), and the other end passes through the clearance hole (100) provided on the outer shell (6) and the rotating fixing plate (1) and is connected to the rotating reset mechanism (5); when the handle assembly (3) rotates, it can drive the drive rod (33) to act on the micro switch (4); The micro switch (4) is mounted on the rotating fixed plate (1) and is used to electrically connect with the control module inside the coffee machine; The rotation reset mechanism (5) is used to drive the handle assembly (3) to automatically rotate in the opposite direction and reset after the handle assembly (3) is driven to rotate by an external force.
2. The coffee machine control device according to claim 1, characterized in that, The rotation reset mechanism (5) includes a torsion spring (51), a locking nut (52), and a locking screw (53); The locking nut (52) is threaded to the end of the rotating shaft (2); The torsion spring (51) is sleeved on the rotating shaft (2) and located between the locking nut (52) and the shaft seat (11); One end of the torsion spring (51) is fixedly connected to the rotating fixing plate (1) by a locking screw (53), and the other end is fixedly connected to the end of the drive rod (33) by another locking screw (53).
3. The coffee machine control device according to claim 1, characterized in that, A limiting member (21) is provided on the rotating shaft (2) at a position between the rotating reset mechanism (5) and the shaft seat (11) to restrict the axial disengagement of the rotating shaft (2); The rotating shaft (2) is provided with an annular groove (22) for the limiting member (21) to engage.
4. The coffee machine control device according to claim 1, characterized in that, The rotating connection part (32) is a cover-shaped structure with an opening facing the outer shell (6), and a rotating guide plate (34) is provided at its opening to be connected to the outer shell (6) and the rotating fixing plate (1) by screws; The opening edge of the rotating connection part (32) is in contact with the rotating guide plate (34).
5. A coffee machine control device according to claim 1, characterized in that, The drive rod (33) is fitted with a rubber sleeve (331) for shock absorption and noise reduction.
6. A coffee machine control device according to claim 1, characterized in that, The micro switch (4) is connected to the rotating fixed plate (1) through a mica gasket (41).
7. The coffee machine control device according to any one of claims 1 to 6, characterized in that, Two control devices are provided, symmetrically distributed on both sides of the outer casing (6), and are used to control the steam output and hot water output of the coffee machine, respectively.