Coffee machine with lifting function

Abstract

This application provides a coffee machine with a lifting function, including a base assembly and a water tank funnel assembly placed above the base assembly. The coffee machine also includes: a lower main body assembly, the lower end of which is fixed to the base assembly; an upper main body assembly, the upper end of which is connected to the periphery of the water tank funnel assembly, and the lower end of which is movably connected to the upper end of the lower main body assembly, so that the upper main body assembly can drive the water tank funnel assembly to lift and lower relative to the lower main body assembly and the base assembly; and a retractable holding member, which is connected between the upper and lower main body assemblies, for winding and retracting when the upper main body assembly moves upward, releasing and unfolding when the upper main body assembly moves downward, and applying a force to the upper main body assembly to hold it in the position after movement. This application not only increases the lifting stroke of the upper main body assembly and the water tank funnel assembly of the coffee machine, allowing for a wider height range for coffee cups placed on the base assembly, but also enables customized adjustment within the height adjustment range.

Description

Technical Field

[0001] This application belongs to the field of coffee machine technology, and in particular relates to a coffee machine with a lifting function. Background Technology

[0002] A drip coffee maker typically consists of two parts: a base and a water tank / funnel assembly. The water tank / funnel assembly is located on top of the water tank, and the coffee outlet is located at the bottom of the assembly. Since the water tank / funnel assembly is fixed to the base, its height cannot be adjusted, thus limiting the height of the coffee cup placed on the base. To adjust the height of the water tank, some existing coffee machines typically incorporate a lifting mechanism between the water tank and the base. However, these lifting mechanisms have limited lifting height. For example, Chinese patent CN2640354Y discloses a coffee machine that includes a base and a water tank positioned above the base. The base comprises a lower part and an upper part, connected by a lifting drive mechanism. This mechanism includes a cam and a knob connected to the cam. Rotating the knob drives the cam to rotate, thus adjusting the water tank height. Due to the inherent structural characteristics of the cam, the water tank can only rise to a limited height. This makes the coffee machine unsuitable for taller coffee cups like travel mugs, and the limited descent height also makes it inconvenient for packaging and transportation. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of this application is to provide a coffee machine with lifting function.

[0004] The technical solution adopted in this application embodiment is a coffee machine with a lifting function, including a base assembly and a water tank funnel assembly placed above the base assembly, and further including:

[0005] The lower main body component is fixed at its lower end to the base component;

[0006] The upper main body assembly has its upper end connected to the periphery of the water tank funnel assembly, and its lower end movably connected to the upper end of the lower main body assembly, so that the upper main body assembly can drive the water tank funnel assembly to rise and fall relative to the lower main body assembly and the base assembly.

[0007] A retractable holding component, connected between the upper body assembly and the lower body assembly, is used to retract when the upper body assembly moves upward, release and unfold when the upper body assembly moves downward, and apply a force to the upper body assembly to hold it in the position after movement.

[0008] In an optional embodiment, the winding and holding component includes a spring, which is rotatably connected to one of the upper main body assembly and the lower main body assembly. The outer end of the spring is fixed to the other of the upper and lower main body assemblies. When the upper main body assembly is raised or lowered, the spring can be wound or released. Using a spring as the winding and holding component not only provides support for the upper main body assembly and the water tank funnel assembly, keeping them at the adjusted height, but also allows for stepless adjustment (customizable adjustment).

[0009] In an optional embodiment, the upper body assembly includes a sleeve-shaped upper body, with an upper body seat located at its lower end. The upper body seat has a seat cavity communicating with the tubular cavity of the upper body. The mainspring is rotatably disposed within the seat cavity of the upper body seat. The upper end of the lower body assembly extends through the seat cavity into the upper body, and the outer end of the mainspring is fixed to the upper end of the lower body assembly. The tubular wall of the upper body can be designed to be thinner, reducing cost and overall weight.

[0010] In an optional embodiment, the lower body component includes a lower body, the lower body including a first outer wall surface and a second outer wall surface that are opposite to each other, both the first outer wall surface and the second outer wall surface being vertical surfaces;

[0011] The coffee machine with lifting function includes two springs. The winding axes of the two springs are parallel and rotatably disposed within the seat cavity. The outer ends of the two springs are respectively fixed to the upper ends of the first outer wall and the second outer wall. In this way, sufficient and stable support can be provided for the upper main body assembly and the water tank funnel assembly, so that the upper main body assembly and the water tank funnel assembly are held in the adjusted position.

[0012] In an optional embodiment, the spring unfolds into a thin sheet. As the upper body moves the water tank funnel assembly downwards, the spring gradually releases and adheres to the first and second outer wall surfaces, respectively. The spring's contact with the lower body's outer wall surface provides support, enhancing the overall structural stability.

[0013] In an optional embodiment, the lower body assembly further includes a tubular outer shell. A lower body seat is disposed within the upper end of the outer shell. The lower body seat has a cavity communicating with the tubular cavity of the outer shell. The upper end of the lower body extends from the lower end of the outer shell into the cavity of the lower body seat. An annular space is formed between the cavity wall and the lower body. The lower end of the upper body extends through the annular space into the outer shell. The outer shell protects the lower body and the mainspring, extending their service life.

[0014] In an optional embodiment, the upper body has a rectangular cross-section, and its inner peripheral wall is provided with a first groove extending vertically. The water tank funnel assembly has a first rectangular body protruding from its periphery. The outer peripheral side of the first rectangular body is provided with a first rib extending vertically and cooperating with the first groove. The first rectangular body is inserted into the upper end of the upper body; and / or

[0015] The outer casing has a rectangular cross-section, and its inner peripheral wall has a second groove extending vertically. The bottom end of the lower main body has a second rectangular body, and the outer peripheral side of the second rectangular body has a second protruding rib extending vertically and engaging with the second groove. The second rectangular body is inserted into the lower end of the outer casing. The engagement of the protruding rib and the groove, as well as the insertion, makes the connection simple and reliable.

[0016] In an optional embodiment, the water tank funnel assembly includes a funnel and a water tank. A funnel frame is provided around the top of the funnel, and a water tank seat is provided on the upper side of the funnel frame. The water tank is disposed on the water tank seat.

[0017] The base assembly includes a base and a heating plate disposed within the base, the heating plate being located directly below the funnel; the water tank and the heating plate are connected via a water system, the water system being used to send water from the water tank into the heating plate for heating and then spraying it into the funnel to brew the coffee powder in the funnel.

[0018] In an optional embodiment, the water system includes a water pump, an upper water guide pipe assembly, and a lower water guide pipe assembly. The water pump is located within the base and provides power for the flow of water within the upper and lower water guide pipe assemblies. The upper and lower water guide pipe assemblies are located within the upper and lower main body components, respectively. The lower end of the upper water guide pipe assembly is nested and connected to the upper end of the lower water guide pipe assembly, forming a dynamic seal between them. This allows the upper and lower water guide pipe assemblies to slide relative to each other when the upper main body component is raised or lowered. This dynamic seal sliding connection between the upper and lower water guide pipe assemblies facilitates adjustment of their total length as the upper main body component is raised or lowered.

[0019] In an optional embodiment, the upper water guide pipe group includes a first upper water guide pipe and a second upper water guide pipe arranged in parallel, the upper end of the first upper water guide pipe being connected to the water tank, and the upper end of the second upper water guide pipe being connected to the funnel.

[0020] The lower water guide pipe assembly includes a first lower water guide pipe and a second lower water guide pipe arranged in parallel. The upper end of the first lower water guide pipe extends into the lower end of the first upper water guide pipe. A first sealing ring is fixedly sleeved on the upper end of the first lower water guide pipe. The first sealing ring is tightly fitted with the inner wall of the lower end of the first upper water guide pipe and can slide along it. The lower end of the first lower water guide pipe is connected to the water pump. The upper end of the second lower water guide pipe extends into the lower end of the second upper water guide pipe. A second sealing ring is fixedly sleeved on the upper end of the second lower water guide pipe. The second sealing ring is tightly fitted with the inner wall of the lower end of the second upper water guide pipe and can slide along it. The lower end of the second lower water guide pipe is connected to the heating plate.

[0021] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: The coffee machine of this application, through the function of the retractable holding component, ensures that after the upper main body assembly is raised or lowered relative to the lower main body assembly, the water tank funnel assembly will not cause the upper main body assembly to fall down due to its own weight, allowing the water tank funnel assembly to remain at any adjusted height. Furthermore, the coffee machine of this application not only increases the lifting stroke of the water tank funnel assembly, allowing for a wider range of coffee cup heights placed on the base assembly, but also achieves fully customizable adjustment within the height adjustment range.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this application.

[0023] The overview of various implementations or examples of the technology described in this application is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0024] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts.

[0025] Figure 1 This is a three-dimensional structural diagram of a coffee machine with lifting function according to an embodiment of this application.

[0026] Figures 2 to 4 These are partial cross-sectional views of a coffee machine with lifting function from different perspectives, representing embodiments of this application. Figure 2 and Figure 4 The spring in the middle is in a wound and contracted state. Figure 3 The spring in the middle is in the released and unfolded state.

[0027] Figure 5This is a three-dimensional structural diagram of a coffee machine with lifting function according to an embodiment of this application after removing the upper body.

[0028] Figure 6 This is a three-dimensional structural diagram of the water tank funnel assembly and the upper main body assembly after being combined according to an embodiment of this application.

[0029] Figure 7 This is an exploded view of the water tank funnel assembly and the upper main body assembly according to an embodiment of this application.

[0030] Figure 8 This is a schematic diagram of the structure of the upper body seat and the spring combined in an embodiment of this application.

[0031] Figure 9 This is a three-dimensional structural diagram of the base assembly and the lower main body assembly after being combined according to an embodiment of this application.

[0032] Figure 10 This is an exploded view of the base assembly and lower main body assembly according to an embodiment of this application.

[0033] Figure 11 This is a cross-sectional view of the water tank funnel assembly and the upper main body assembly according to an embodiment of this application.

[0034] Figure 12 This is a schematic diagram of the connection between the water system and the funnel in an embodiment of this application.

[0035] Figure 13 This is a cross-sectional view of the base assembly and the lower main body assembly according to an embodiment of this application.

[0036] Figure 14 This is a schematic diagram of the internal structure of the base assembly in an embodiment of this application, viewed from below.

[0037] Figure 15 This is a cross-sectional view of the upper water guide pipe assembly and the lower water guide pipe assembly according to an embodiment of this application.

[0038] Figure 16 This is a schematic diagram of the coffee machine with lifting function in the lowest position according to an embodiment of this application.

[0039] Figure 17 This is a schematic diagram of the structure of a coffee machine with lifting function in the highest position according to an embodiment of this application.

[0040] Figure label:

[0041] 1-Lower main body assembly; 11-Lower main body; 12-Lower main body base; 13-Outer shell; 14-Second rectangular body;

[0042] 2-Upper main body assembly; 21-Upper main body; 22-Upper main body base; 221-Seat cavity;

[0043] 3- Wind-up;

[0044] 4-Water tank funnel assembly; 41-Funnel; 42-Water tank; 43-Funnel frame; 431-Funnel frame inlet; 44-Water tank base; 45-First rectangular body;

[0045] 5-Base assembly; 51-Base; 52-Heating plate;

[0046] 61-Water pump; 611-Pump inlet; 612-Pump outlet; 62-Upper guide pipe assembly; 621-First upper guide pipe; 6211-Upper inlet; 622-Second upper guide pipe; 6221-Upper outlet; 63-Lower guide pipe assembly; 631-First lower guide pipe; 632-Second lower guide pipe; 64-First sealing ring; 65-Second sealing ring; 66-Silicone tubing. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0048] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] To keep the following description of the embodiments of this application clear and concise, detailed descriptions of known functions and known components are omitted.

[0050] This application provides a coffee machine with a lifting function. For example... Figures 1 to 17As shown, the coffee machine includes a base assembly 5, a water tank funnel assembly 4 positioned above the base assembly 5, a lower main body assembly 1, an upper main body assembly 2, and a retractable holding component. The lower end of the lower main body assembly 1 is fixed to the base assembly 5. The lower end of the upper main body assembly 2 is movably connected to the upper end of the lower main body assembly 1, allowing the upper main body assembly 2 to rise and fall relative to the lower main body assembly 1 and the base assembly 5. The upper end of the upper main body assembly 2 is connected to the periphery of the water tank funnel assembly 4. When the upper main body assembly 2 rises and falls, it causes the water tank funnel assembly 4 to rise and fall, adjusting its distance from the base assembly 5 and increasing the height range of coffee cups that can be placed on the base assembly 5. The retractable holding component is connected between the upper main body assembly 2 and the lower main body assembly 1, used to coil and retract when the upper main body assembly 2 moves upward, and to release and unfold when the upper main body assembly 2 moves downward, applying a force to the upper main body assembly 2 to hold it in its post-movement position.

[0051] In this embodiment of the coffee machine, the water tank funnel assembly 4 and the base assembly 5 are connected by an upper main body assembly 2 and a lower main body assembly 1, which allows the upper main body assembly 2 to drive the water tank funnel assembly 4 to rise and fall relative to the base assembly 5. The lifting stroke can be set according to actual needs, and the height adjustment is relatively large compared to the cam-type height adjustment in the prior art. This allows for a wider range of heights for the coffee cup placed on the base assembly 5. Furthermore, due to the setting of the retraction and holding component, the upper main body assembly 2 and the water tank funnel assembly 4 can be maintained at the adjusted height within the height adjustment range, and complete customization adjustment can be achieved.

[0052] The retractable retaining component can adopt a structure with a certain degree of rigidity and elasticity, and be able to be wound and retracted and released and unfolded, so as to accommodate the expansion and contraction between the upper main body component 2 and the lower main body component 1.

[0053] In some embodiments, the retraction and holding component includes a spring 3, which is rotatably connected to one of the upper main body assembly 2 and the lower main body assembly 1. The outer end of the spring 3 is fixed to the other of the upper main body assembly 2 and the lower main body assembly 1. When the upper main body assembly 2 rises or falls, the spring 3 can be wound or released. The spring 3 has a simple and reasonable structure, which can both retract or release with the rise and fall of the upper main body assembly 2 and provide a certain supporting force to keep the upper main body assembly 2 in the position after movement.

[0054] In some embodiments, such as Figure 6 and Figure 7 As shown, the upper body assembly 2 includes a sleeve-shaped upper body 21, with an upper body seat 22 located at the lower end of the upper body 21. The upper body seat 22 has a seat cavity 221 communicating with the cavity of the upper body 21. The spring 3 is rotatably mounted on the inner wall of the seat cavity 221 of the upper body seat 22. (See Figure 1) Figure 8The upper end of the lower main body assembly 1 extends through the seat cavity 221 into the upper main body 21. The outer end of the mainspring 3 is fixed to the upper end of the lower main body assembly 1. The upper main body seat 22 increases the local strength of the upper main body 21, allowing the tube wall of the upper main body 21 to be designed to be thinner, reducing cost and overall weight. The mainspring 3 can also be mounted on the upper main body 21 through the upper main body seat 22.

[0055] In some embodiments, such as Figure 9 and Figure 10 As shown, the lower main body assembly 1 includes a lower main body 11, which includes a first outer wall surface and a second outer wall surface that are opposite to each other. Both the first and second outer wall surfaces are vertical. The coffee machine includes two springs 3, whose winding axes are parallel and rotatably disposed within the seat cavity 221 of the upper main body seat 22. The outer ends of the two springs 3 are respectively fixed to the upper ends of the first and second outer wall surfaces. Through the two symmetrically arranged and synchronously retracting springs 3, sufficient and stable support can be provided for the upper main body assembly 2 and the water tank funnel assembly 4 after the upper main body assembly 2 has been raised and lowered to the required height, so that the upper main body assembly 2 and the water tank funnel assembly 4 are held in the adjusted position.

[0056] The mainspring 3 can be formed by winding a thin sheet of spring steel onto a shaft. For example... Figure 3 As shown, when the upper body 21 drives the water tank funnel assembly 4 downward, the spring 3 gradually releases, and the thin sheet-like spring steel of the released and unfolded part extends vertically and abuts against the first outer wall surface and the second outer wall surface respectively. See Figure 3 The lower body 11 can support the mainspring 3 of the unfolded part and prevent the mainspring 3 from deforming.

[0057] In some embodiments, the combination continues Figure 9 and Figure 10 The lower main body assembly 1 also includes a tubular outer shell 13, with a lower main body seat 12 disposed within the upper end of the outer shell 13. The lower main body seat 12 has a seat cavity (not shown in the figure) communicating with the tubular cavity of the outer shell 13. The upper end of the lower main body 11 extends from the lower end of the outer shell 13 into the seat cavity of the lower main body seat 12, forming an annular space between the cavity wall and the lower main body 11. The lower end of the upper main body 21 extends through the annular space into the outer shell 13, so that the upper main body seat 22 disposed inside the lower end of the upper main body 21 is located below the lower main body seat 12. The outer shell 13 not only makes the structure regular but also protects the lower main body 11 and the mainspring 3, extending their service life.

[0058] like Figure 6 and Figure 7As shown, the upper body 21 has a rectangular cross-section, meaning it is a rectangular tubular structure. A first groove (not shown) extending vertically is provided on the inner peripheral wall of the upper body 21. A first rectangular body 45 protrudes from the periphery of the water tank funnel assembly 4, and a first rib (not shown) extending vertically is provided on the outer peripheral side of the first rectangular body 45. The first rectangular body 45 is inserted into the upper end of the upper body 21, and the first rib engages with the first groove to form a tight fit between the first rectangular body 45 and the upper body 21. The connection between the upper body 21 and the water tank funnel assembly 4 is simple, reliable, and highly stable.

[0059] like Figure 9 and Figure 10 As shown, the outer shell 13 has a rectangular cross-section, and its inner peripheral wall has a second groove extending vertically (not shown in the figure). The bottom end of the lower body 11 has a second rectangular body 14, which is fixed to the base 51. The outer peripheral side of the second rectangular body 14 has a second protruding rib extending vertically (not shown in the figure). The second rectangular body 14 is inserted into the lower end of the outer shell 13, and the second protruding rib cooperates with the second groove to form a tight fit between the second rectangular body 14 and the outer shell 13. The connection between the outer shell 13 and the lower body 11 is simple and reliable.

[0060] The upper main body base 22 and the lower main body base 12 are rectangular frame structures that are adapted to the inner cavity of the upper main body 21 and the inner cavity of the outer shell 13, respectively.

[0061] like Figure 7 As shown, the water tank funnel assembly 4 includes a funnel 41 and a water tank 42. A funnel frame 43 is provided around the top of the funnel 41, and a water tank seat 42 is provided on the upper side of the funnel frame 43. The water tank 42 is mounted on the water tank seat 42 and located on top of the water tank seat 42. A protrusion is provided around the funnel frame 43, and a first rectangular body 45 is connected to the lower side of the protrusion.

[0062] like Figure 10 As shown, the base assembly 5 includes a base 51 and a heating plate 52 disposed within the base 51. The heating plate 52 is located directly below the funnel 41, see [reference needed]. Figures 1 to 3 The water tank 42 and the heating plate 52 are connected by a water system. The water system is used to send water from the water tank 42 into the heating plate 52 for heating and then spraying it into the funnel 41 to brew the coffee powder in the funnel 41.

[0063] In some embodiments, the water system includes a water pump 61, an upper water guide pipe assembly 62, and a lower water guide pipe assembly 63. The water pump 61 is disposed within the base 51 and provides power for the flow of water within the upper water guide pipe assembly 62 and the lower water guide pipe assembly 63. The upper water guide pipe assembly 62 and the lower water guide pipe assembly 63 pass through the upper main body assembly 2 and the lower main body assembly 1, respectively. The lower end of the upper water guide pipe assembly 62 and the upper end of the lower water guide pipe assembly 63 are nested and connected, forming a dynamic seal between them. This allows the upper water guide pipe assembly 62 and the lower water guide pipe assembly 63 to slide relative to each other when the upper main body assembly 2 is raised or lowered, thereby changing their total length to accommodate the raising and lowering of the upper main body assembly 2.

[0064] like Figure 7 , Figure 10 and Figure 15 As shown, the upper water guide pipe assembly 62 includes a first upper water guide pipe 621 and a second upper water guide pipe 622 arranged in parallel, and the lower water guide pipe assembly 63 includes a first lower water guide pipe 631 and a second lower water guide pipe 632 arranged in parallel. The first upper water guide pipe 621 and the second upper water guide pipe 622 extend vertically and are disposed within the cavity of the upper body 21. The upper end of the first upper water guide pipe 621 is connected to the water tank 42, and the upper end of the second upper water guide pipe 622 is connected to the funnel 41. The lower body 11 is a hollow column with a roughly rectangular cross-section and only three side walls, with the other side open. The first lower water guide pipe 631 and the second lower water guide pipe 632 extend vertically and are disposed within the lower body 11. The upper end of the first lower water guide pipe 631 extends into the lower end of the first upper water guide pipe 621. A first sealing ring 64 is fixedly fitted onto the upper end of the first lower water guide pipe 631. The first sealing ring 64 is in close contact with the inner wall of the lower end of the first upper water guide pipe 621 and can slide along it. The upper end of the second lower water guide pipe 632 extends into the lower end of the second upper water guide pipe 622. A second sealing ring 65 is fixedly fitted onto the upper end of the second lower water guide pipe 632. The second sealing ring 65 is in close contact with the inner wall of the lower end of the second upper water guide pipe 622 and can slide along it. See [link to other documentation]. Figure 15 The lower end of the first water guide pipe 631 is connected to the water inlet of the heating plate 52, and the lower end of the second water guide pipe is connected to the water outlet of the heating plate 52.

[0065] Specifically, such as Figure 13 and Figure 14 As shown, a water pump 61 is located between the lower water guide pipe assembly 63 and the heating plate 52. The water pump inlet 611 of the water pump 61 is connected to the lower end of the first lower water guide pipe 631 via a silicone tube 66. The water pump outlet 612 of the water pump 61 is connected to the water inlet of the heating plate 52 via a silicone tube 66. The water outlet of the heating plate 52 is connected to the lower end of the second lower water guide pipe 632 via a silicone tube 66. A water outlet is provided at the bottom of the water tank 42. This outlet passes through the water tank base 42 and is connected to the upper water inlet 6211 at the upper end of the first upper water guide pipe 621 via a silicone tube 66. Figure 11 and Figure 12As shown, the funnel holder 43 is provided with a funnel holder inlet 431 that communicates with the inside of the funnel 41. The funnel holder inlet 431 is connected to the upper outlet 6221 at the upper end of the second upper water guide pipe 622 via a silicone tube 66. Water in the water tank 42 can enter the first upper water guide pipe 621 under the action of gravity, and then enter the first lower water guide pipe 631, and then enter the water pump 61. The water pump 61 pumps the water into the heating plate 52, and after being heated by the heating plate 52, it enters the second lower water guide pipe 632 and the second upper water guide pipe 622 in sequence. Finally, the water is sprayed onto the coffee powder in the funnel 41 through the funnel holder inlet 431 at the top of the funnel holder 43, completing the coffee brewing. The brewed coffee drips into the coffee cup in the base 51 for the user to drink.

[0066] In this embodiment, the upper water guide pipe assembly 62 and the lower water guide pipe assembly 63 form a nested sliding seal relationship through two upper and lower water guide pipes, which not only forms a complete water flow path, but also facilitates smooth extension and retraction with the lifting and lowering of the upper body 21, avoiding water path disconnection and leakage.

[0067] The working process and principle of the coffee machine with lifting function according to the embodiments of this application are described below:

[0068] The upper main component 2 has the following characteristics relative to the lower main component 1: Figure 1 and Figure 16 The lowest position shown, and as Figure 2 and Figure 17 The highest position shown. The funnel 41, relative to the base 51, has the following characteristics: Figure 1 and Figure 16 The lowest position shown, and as Figure 2 and Figure 17 The highest position shown. (As shown) Figure 1 and Figure 16 As shown, when the upper main body component 2 is in its lowest position, the distance between the funnel 41 and the base 51 is small, and only coffee cups of relatively low height can be placed on the base 51. At this time, the spring 3 is in the released and unfolded state. See [reference needed]. Figure 3 When the user wants to place a tall coffee cup on the base 51, they pull the upper main body assembly 2 upwards. The upper main body assembly 2 causes the water tank funnel assembly 4 to rise simultaneously, while the spring 3 winds up, shortening the released portion and providing continuous support to the upper main body assembly 2, allowing it to remain in any adjusted position. The increased distance between the funnel 41 and the base 51 allows for the placement of taller coffee cups. When the upper main body assembly 2 is adjusted to its highest position, the spring 3 winds up further, see [link to relevant documentation]. Figure 2 At this point, the distance between funnel 41 and base 51 is at its maximum, allowing for the placement of taller coffee cups. (See [reference]). Figure 17Because the spring 3 can be wound or unwound to any small length, the height of the upper main body component 2 can be infinitely (customizable). That is, the upper main body component 2 can be adjusted to any position between its highest and lowest positions.

[0069] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A coffee machine with a lifting function, comprising a base assembly (5) and a water tank funnel assembly (4) disposed above the base assembly (5), characterized in that, Also includes: The lower main body component (1) is fixed at its lower end to the base component (5); The upper main body assembly (2) is connected at its upper end to the periphery of the water tank funnel assembly (4) and at its lower end to the upper end of the lower main body assembly (1), so that the upper main body assembly (2) can drive the water tank funnel assembly (4) to rise and fall relative to the lower main body assembly (1) and the base assembly (5). The retractable holding component is connected between the upper main body assembly (2) and the lower main body assembly (1) for winding and retracting when the upper main body assembly (2) moves upward, releasing and unfolding when the upper main body assembly (2) moves downward, and applying a force to the upper main body assembly (2) to hold it in the position after movement.

2. The coffee machine with lifting function according to claim 1, characterized in that, The winding and holding component includes a spring (3), which is rotatably connected to one of the upper main body assembly (2) and the lower main body assembly (1). The outer end of the spring (3) is fixed to the other of the upper main body assembly (2) and the lower main body assembly (1). When the upper main body assembly (2) is raised or lowered, the spring (3) can be wound or released.

3. The coffee maker with lifting function according to claim 2, characterized in that, The upper main body assembly (2) includes a sleeve-shaped upper main body (21), and an upper main body seat (22) is provided in the lower end of the upper main body (21). The upper main body seat (22) has a seat cavity (221) that communicates with the lumen of the upper main body (21). The spring (3) is rotatably disposed in the seat cavity (221). The upper end of the lower main body assembly (1) extends through the seat cavity (221) into the upper main body (21). The outer end of the spring (3) is fixed to the upper end of the lower main body assembly (1).

4. The coffee maker with a lifting function according to claim 3, characterized in that, The lower body component (1) includes a lower body (11), which includes a first outer wall surface and a second outer wall surface that are opposite to each other. Both the first outer wall surface and the second outer wall surface are vertical surfaces. The coffee machine with lifting function includes two springs (3), the winding axes of the two springs (3) are parallel and rotatably disposed in the seat cavity (221), and the outer ends of the two springs (3) are respectively fixed to the upper end of the first outer wall and the upper end of the second outer wall.

5. The coffee maker with a lifting function according to claim 4, characterized in that, When the spring (3) is unfolded, it is in the shape of a thin sheet. When the upper body (21) drives the water tank funnel assembly (4) to move downward, the spring (3) is gradually released and abuts against the first outer wall surface and the second outer wall surface respectively.

6. The coffee machine with lifting function according to claim 4, characterized in that, The lower main body assembly (1) further includes a tubular outer shell (13), and a lower main body seat (12) is provided in the upper end of the outer shell (13). The lower main body seat (12) has a seat cavity communicating with the tubular cavity of the outer shell (13). The upper end of the lower main body (11) extends from the lower end of the outer shell (13) into the seat cavity of the lower main body seat (12). The cavity wall of the seat cavity of the lower main body seat (12) and the lower main body (11) form an annular space. The lower end of the upper main body (21) extends through the annular space into the outer shell (13).

7. The coffee maker with a lifting function according to claim 6, characterized in that, The upper body (21) has a rectangular cross-section, and its inner peripheral wall is provided with a first groove extending vertically. The water tank funnel assembly (4) has a first rectangular body (45) protruding from its periphery. The outer peripheral side of the first rectangular body (45) is provided with a first rib extending vertically and cooperating with the first groove. The first rectangular body (45) is inserted into the upper end of the upper body (21); and / or The outer shell (13) has a rectangular cross-section and a second groove extending vertically on its inner peripheral wall. The bottom end of the lower body (11) is provided with a second rectangular body (14). The outer peripheral side of the second rectangular body (14) is provided with a second protruding rib extending vertically and cooperating with the second groove. The second rectangular body (14) is inserted into the lower end of the outer shell (13).

8. The coffee machine having a lifting function according to claim 1, characterized in that, The water tank funnel assembly (4) includes a funnel (41) and a water tank (42). A funnel frame (43) is provided on the top periphery of the funnel (41), and a water tank seat (44) is provided on the upper side of the funnel frame (43). The water tank (42) is located on the water tank seat (44). The base assembly (5) includes a base (51) and a heating plate (52) disposed in the base (51). The heating plate (52) is located directly below the funnel (41). The water tank (42) and the heating plate (52) are connected by a water system. The water system is used to send water from the water tank (42) into the heating plate (52) for heating and then spraying it into the funnel (41) to brew the coffee powder in the funnel (41).

9. The coffee maker with a lifting function according to claim 8, characterized in that, The water system includes a water pump (61), an upper water guide pipe assembly (62), and a lower water guide pipe assembly (63). The water pump (61) is located inside the base (51) and is used to provide power for the flow of water in the upper water guide pipe assembly (62) and the lower water guide pipe assembly (63). The upper water guide pipe assembly (62) and the lower water guide pipe assembly (63) are located inside the upper main body assembly (2) and the lower main body assembly (1). The lower end of the upper water guide pipe assembly (62) is nested and connected to the upper end of the lower water guide pipe assembly (63), and a dynamic seal is formed between them so that the upper water guide pipe assembly (62) and the lower water guide pipe assembly (63) slide relative to each other when the upper main body assembly (2) is raised or lowered.

10. The coffee maker with a lifting function according to claim 9, characterized in that, The upper water guide pipe assembly (62) includes a first upper water guide pipe (621) and a second upper water guide pipe (622) arranged in parallel. The upper end of the first upper water guide pipe (621) is connected to the water tank (42), and the upper end of the second upper water guide pipe (622) is connected to the funnel (41). The lower water guide pipe assembly (63) includes a first lower water guide pipe (631) and a second lower water guide pipe (632) arranged in parallel. The upper end of the first lower water guide pipe (631) extends into the lower end of the first upper water guide pipe (621). A first sealing ring (64) is fixedly sleeved on the upper end of the first lower water guide pipe (631). The first sealing ring (64) is tightly fitted with the inner wall of the lower end of the first upper water guide pipe (621) and can slide along it. The lower end of the pipe (631) is connected to the water pump (61); the upper end of the second lower water guide pipe (632) extends into the lower end of the second upper water guide pipe (622), and the upper end of the second lower water guide pipe (632) is fixedly fitted with a second sealing ring (65). The second sealing ring (65) is tightly attached to the inner wall of the lower end of the second upper water guide pipe (622) and can slide along it. The lower end of the second lower water guide pipe (632) is connected to the heating plate (52).

Images