A purified water dispenser with coffee brewing structure

Abstract

This invention discloses a water purifier with a coffee brewing structure, including a water inlet base, a filter assembly and a heating module disposed within the water inlet base. A water outlet column is provided on the water inlet base, and a water outlet arm assembly is rotated on the water outlet column. The water outlet arm assembly includes a first water outlet arm horizontally rotated on the water outlet column and a second water outlet arm horizontally rotated on the water outlet end of the first water outlet arm, with a water outlet formed at the water outlet end of the second water outlet arm. A water inlet seat is provided at the water inlet end of the second water outlet arm, and the water inlet seat is rotated on the first water outlet arm. The water inlet seat contains a water outlet chamber communicating with the first water outlet arm and a brewing chamber for holding coffee capsules. A water control valve is provided within the first water outlet arm, allowing the first water outlet arm to selectively connect the water outlet chamber and the brewing chamber through the water control valve. This directly integrates the coffee capsule brewing function into the water purifier, eliminating the need for a separate coffee machine and reducing operating costs.

Description

Technical Field

[0001] This invention relates to the field of water purifier technology, and specifically to a water purifier with a coffee brewing structure. Background Technology

[0002] Currently, household water purifiers typically only purify water and provide hot and cold drinking water. If users want to make capsule coffee, they need to purchase a separate capsule coffee machine, which not only takes up kitchen or living room counter space but also increases usage costs and operating steps.

[0003] Although some water dispensers with coffee brewing modules have appeared on the market, their structural design has the following shortcomings: 1. Low flexibility in water outlet position: The water outlet faucet of traditional water purifiers is mostly fixed or can only rotate slightly. When a large kettle is placed on the base, the height and width of the kettle will encroach on the water receiving area, making it impossible for users to place other cups or containers under the water outlet faucet to receive water, resulting in poor flexibility of use. 2. Risk of cross-contamination of water circuit: The existing products share the same flow channel between the purified water outlet and the coffee extraction water circuit or the switching is not thorough, which can easily lead to residual coffee flavor and cross-contamination of purified water flavor, affecting the taste of daily drinking water. 3. Large space occupied by brewing structure: The coffee module is mostly external or independent, resulting in a bulky overall size. Summary of the Invention

[0004] To address the technical problems existing in the background art, the present invention proposes a water purifier with a coffee brewing structure.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A water purifier with a coffee brewing structure includes a water inlet base, a filter assembly and a heating module disposed in the water inlet base, a water outlet column is provided on the water inlet base, and a water outlet arm assembly is rotated on the water outlet column. The water outlet arm assembly includes a first water outlet arm horizontally rotated on the water outlet column, and a second water outlet arm horizontally rotated on the water outlet end of the first water outlet arm, and the water outlet end of the second water outlet arm forms a water outlet. The second water outlet rotating arm has a water inlet seat at its inlet end, which is rotatably mounted on the first water outlet rotating arm. The water inlet seat has a water outlet chamber that connects to the first water outlet rotating arm and a brewing chamber for holding the coffee capsule. The first water outlet rotating arm has a water control valve that selectively connects the water outlet chamber and the brewing chamber. The brewing chamber has a piercing platform for piercing the bottom of the coffee capsule. The piercing platform has a leakage hole and a piercing needle. The second water outlet rotating arm has a connecting pipe that connects the water outlet chamber and the water outlet. The bottom of the water inlet seat forms a liquid outlet hole that connects to the brewing chamber. The bottom of the first water outlet rotating arm forms an output hole that connects to the liquid outlet hole. The water inlet seat also has a sealing cap for sealing and piercing the top of the coffee capsule.

[0006] Preferably, the first water outlet arm is provided with a first water inlet pipe and a second water inlet pipe. The inlet end of the water circuit control valve is connected to the outlet end of the water column. The first water inlet pipe and the second water inlet pipe are connected to the water circuit control valve. The first water inlet pipe is connected to the water outlet chamber, and the second water inlet pipe is connected to the brewing chamber. With the above improvements, the water circuit control valve can accurately select the water path connected to the water column to the first water inlet pipe or the second water inlet pipe, avoiding cross-contamination of water paths. The daily drinking water and capsule coffee modes can be switched with a single water valve without disassembling or adjusting the pipeline. Moreover, the first water inlet pipe and the second water inlet pipe are integrated into the first water outlet arm, without increasing the overall size, keeping the whole machine simple and beautiful.

[0007] Preferably, the sealing cap is provided with a rotating snap-fit ​​protrusion, and the inner wall of the brewing chamber is formed with a rotating snap-fit ​​groove for the rotating snap-fit ​​protrusion to be inserted. The rotating snap-fit ​​groove is inclined downward along the screw-in direction. With the above improvements, when the sealing cap is rotated, it automatically moves downward along the inclined rotating snap-fit ​​groove, and the coffee capsule is pressed in time. The rotating snap-fit ​​groove and the snap-fit ​​protrusion cooperate to generate an axial locking force to prevent loosening or leakage during use.

[0008] Preferably, the sealing cap is provided with a puncture needle assembly, which includes a sliding seat slidably disposed on the sealing cap and a plurality of puncture needles disposed on the sliding seat. When the sliding seat slides toward the brewing chamber, the puncture needles extend out of the bottom of the sealing cap, and the sealing cap is provided with a return spring abutting against the sliding seat, so that the puncture needles always have a tendency to retract into the sealing cap. With the above improvements, when the sliding seat is pressed down, the puncture needles extend out to puncture the capsule, and after being released, they automatically retract into the sealing cap under the action of the return spring, avoiding accidental injury to fingers or damage to the capsule when taking out the capsule, and significantly improving the safety of use.

[0009] Preferably, the bottom of the sealing cap is provided with a plurality of pressing protrusions, which are arranged circumferentially at intervals. The pressing protrusions abut against the top of the coffee capsule, and the pressing protrusions form a water inlet gap. Through the above improvements, the multiple pressing protrusions are distributed circumferentially, so that the upper end of the coffee capsule is subjected to balanced force, ensuring a tight seal and preventing high-pressure leakage of hot water. Hot water can flow into the capsule evenly through the gaps between the protrusions, avoiding uneven extraction caused by single-point dissolving of coffee powder. Furthermore, the intermittent water inlet can reduce the probability of coffee powder backflow clogging the puncture hole and improve extraction stability.

[0010] Preferably, the water inlet base forms a brewing channel that connects to the brewing chamber. The water inlet end of the brewing channel is located at the top of the water inlet base and connects to the second water inlet pipe. The water outlet end of the brewing channel is located at the top of the brewing chamber. With the above improvements, hot water penetrates the coffee powder from the top of the capsule from top to bottom, ensuring a complete extraction path and avoiding short circuits or insufficient extraction.

[0011] Preferably, the top of the brewing chamber is provided with a support protrusion for supporting the coffee capsule, and a brewing sealing ring is provided on the support protrusion. The brewing sealing ring is arranged opposite to the pressing protrusion. Through the above improvement, the support protrusion has a stepped structure, and the brewing sealing ring on the support protrusion and the pressing protrusion form a perpendicular pressure, which can prevent the capsule from being deformed by pressure and ensure the high-pressure sealing of the brewing chamber.

[0012] Preferably, the water inlet has a downwardly extending outlet pipe that connects to the brewing chamber. The outlet hole is formed on the outlet pipe, and the outlet pipe abuts against the inner wall of the first water outlet rotating arm and connects to the output hole. Through the above improvements, the outlet hole is set at the lowest position of the outlet pipe, ensuring that no coffee liquid accumulates in the chamber after brewing, thereby improving the user experience.

[0013] Preferably, a water outlet sealing ring is provided at the bottom of the liquid outlet pipe, and the water outlet sealing ring abuts against the inner wall of the first water outlet rotating arm. Through the above improvements, the elasticity of the sealing ring can compensate for the slight alignment deviation between the water inlet seat and the first water outlet rotating arm, ensuring that the two are always tightly fitted during rotation, and the sealing performance does not decrease due to rotation. The elastic sealing ring replaces hard friction, reduces the direct contact wear between the liquid outlet pipe and the inner wall of the rotating arm, and improves the smoothness of rotation and the service life of the whole machine.

[0014] Preferably, the sealing cap is provided with a compression sealing ring, which abuts against the water inlet seat. Through the above improvements, the compression sealing ring forms an elastic compression with the end face of the water inlet seat when the sealing cap is closed, effectively preventing hot water from splashing or leaking out from the joint between the sealing cap and the water inlet seat, ensuring safe use, and maintaining a stable extraction pressure in the brewing chamber, allowing hot water to fully penetrate the coffee powder, improving coffee concentration and oil extraction quality.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: By integrating the capsule coffee brewing function directly into the water purifier, there's no need to purchase a separate coffee machine, significantly saving counter space in the kitchen or living room and reducing operating costs. The water outlet assembly features a two-stage rotating structure with a horizontally rotating first and second water outlet arm. Users can flexibly adjust the horizontal coverage of the water outlet according to the actual size and position of different containers such as kettles and cups placed on the base. This completely solves the problem of traditional fixed or small-amplitude rotating faucets failing to dispense water properly when large containers occupy the water receiving area, greatly increasing the freedom of use. The water circuit design achieves both purified water dispensing and coffee extraction. The physical separation of the water flow channels utilizes the water inlet seat between the first and second water outlet rotating arms to provide a water transfer point. The first water outlet rotating arm independently connects the water outlet chamber (corresponding to purified water output) and the brewing chamber (corresponding to coffee extraction) formed within the water inlet seat. Purified water flows out through the water outlet chamber and connecting pipe to the water outlet, while coffee flows out through the brewing chamber, liquid outlet, and output port. The two paths do not intersect, completely avoiding residual coffee flavor and cross-contamination of purified water flavor, ensuring the pure taste of daily drinking water. The coffee brewing chamber is built into the water inlet seat and is punctured and sealed with a sealing cap, eliminating the need for external modules. The overall structure is compact and not bulky. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the water outlet arm assembly of the present invention; Figure 3 This is a cross-sectional view of the water outlet arm assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the water inlet seat and the sealing cover of the present invention. Figure 5 This is an exploded view of the water inlet seat and sealing cover of the present invention. Figure 6 This is a cross-sectional view of the water inlet seat and sealing cover of the present invention. Figure 7 This is a schematic diagram of the sealing cap of the present invention; Figure 8 This is a schematic diagram of the puncture needle assembly of the present invention; Figure 9 This is a schematic diagram of the internal structure of the water inlet seat of the present invention; In the diagram: 1. Water inlet base; 2. Filter cartridge assembly; 101. Water outlet column; 102. Water outlet arm assembly; 111. First water outlet rotating arm; 112. Second water outlet rotating arm; 113. Water outlet; 201. Water inlet seat; 202. Water outlet chamber; 203. Brewing chamber; 204. Connecting pipe; 205. Liquid outlet hole; 206. Output hole; 207. Sealing cap; 208. Puncture platform; 209. Leakage hole; 210. Puncture needle; 301. First water inlet pipe; 302. Second water inlet pipe; 303. Water circuit control valve; 401 402. Rotary locking protrusion; 403. Rotary locking groove; 504. Puncture needle assembly; 505. Sliding seat; 506. Puncture needle; 507. Return spring; 508. Pressing protrusion; 509. Water inlet gap; 5000. Brewing channel; 6001. Supporting protrusion; 601. Brewing sealing ring; 602. Liquid outlet pipe; 603. Water outlet sealing ring; 604. Pressing sealing ring; 605. Rotating protrusion; 701. Water inlet control valve; 702. Connecting seat; 801. Slide rod; 802. Mounting plate; 803. Leak-proof sealing ring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0019] like Figure 1-9 As shown, a water purifier with a coffee brewing structure includes a water inlet base 1, a filter element assembly 2 and a heating module (not shown in the figure) disposed in the water inlet base 1. A control panel is provided on the water inlet base 1, and the user can switch between normal water output mode and coffee brewing mode according to their needs. The water filtered by the filter element assembly 2 can be output directly or through the heating module to achieve the output of room temperature water and hot water.

[0020] Specifically, a water outlet column 101 is provided on the water inlet base 1, and a water outlet arm assembly 102 is rotated on the water outlet column 101. The water outlet arm assembly 102 includes a first water outlet arm 111 horizontally rotated on the water outlet column 101, and a second water outlet arm 112 horizontally rotated on the water outlet end of the first water outlet arm 111. The water outlet end of the second water outlet arm 112 forms a water outlet 113. By setting a vertical water outlet column 101, and sequentially horizontally rotating the first water outlet arm 111 and the second water outlet arm 112 on it, a water outlet is formed. Arm 112 forms a multi-stage rotating structure. Since the first water outlet rotating arm 111 can rotate horizontally around the water outlet column 101, and the second water outlet rotating arm 112 can rotate horizontally around the end of the first water outlet rotating arm 111, the rotation axes of the two are parallel to each other and staggered, so that the horizontal movement trajectory of the water outlet 113 forms a large annular area, which greatly expands the water receiving space, so that the water purifier can easily meet the water receiving needs of multiple directions and different distances even in kitchen corners or crowded countertops.

[0021] Furthermore, the inlet end of the second water outlet arm 112 is provided with an inlet seat 201, which is rotatably mounted on the first water outlet arm 111. The inlet seat 201 contains an outlet chamber 202 communicating with the first water outlet arm 111, and a brewing chamber 203 for holding coffee capsules. The first water outlet arm 111 is provided with a water control valve 303, which selectively connects the outlet chamber 202 and the brewing chamber 203. The brewing chamber 203 contains… The system includes a piercing platform 208 for piercing the bottom of the coffee capsule, a leakage hole 209 and a piercing needle 210. The second water outlet rotating arm 112 has a connecting pipe 204 that connects the water outlet chamber 202 and the water outlet 113. The bottom of the water inlet seat 201 forms a liquid outlet hole 205 that connects to the brewing chamber 203. The bottom of the first water outlet rotating arm 111 forms an output hole 206 that connects to the liquid outlet hole 205. The water inlet seat 201 is equipped with a sealing cap 207 for sealing and piercing the coffee capsule.

[0022] The first water outlet rotating arm 111 is equipped with a first water inlet pipe 301 and a second water inlet pipe 302. The inlet end of the water circuit control valve 303 is connected to the outlet end of the water outlet column 101. The first water inlet pipe 301 and the second water inlet pipe 302 are connected to the water circuit control valve 303. The first water inlet pipe 301 is connected to the water outlet chamber 202, and the second water inlet pipe 302 is connected to the brewing chamber 203. The water circuit control valve 303 can accurately select the water path connected to the water outlet column 101 to the first water inlet pipe 301 or the second water inlet pipe 302 to avoid cross-contamination of water paths. The daily drinking water and capsule coffee modes can be switched through a single water valve without disassembling or adjusting the pipeline. Moreover, the first water inlet pipe 301 and the second water inlet pipe 302 are integrated into the first water outlet rotating arm 111, without increasing the external volume and keeping the whole machine simple and beautiful.

[0023] When normal water output is required, the normal water output mode can be selected. After the user selects room temperature water or hot water and sets the desired temperature through the control panel, the raw water is purified by the filter element 2 in the water inlet base 1 and then heated by the heating module according to the set temperature (heating is not activated in room temperature water mode). The treated water enters the water outlet column 101 and then enters the water circuit control valve 303 in the first water outlet rotating arm 111. The water circuit control valve 303 switches to the first water inlet pipe 301 passage, guiding the water flow to the water outlet chamber 202 in the water inlet base 201. After entering the water outlet chamber 202, the water flows into the connecting pipe 204 set in the second water outlet rotating arm 112 and finally flows out from the water outlet 113 at the end of the second water outlet rotating arm 112 and falls into the container placed by the user. In this mode, the water only flows through the water outlet chamber 202 and the connecting pipe 204 and does not enter the brewing chamber 203, ensuring that the water output is pure and odorless.

[0024] When brewing capsule coffee, the user opens the sealing cap 207, places the capsule coffee into the brewing chamber 203 of the water inlet 201, and then closes and tightens the sealing cap 207. During the tightening process, the piercing needle 210 on the piercing platform 208 pierces the bottom of the coffee capsule, while the sealing cap 207 pierces the top of the coffee capsule and compresses it. The user can then select the coffee brewing mode via the control panel. After purification by the filter, the raw water is heated by the heating module to the temperature required for coffee extraction (typically 90–95°C). Water enters the water outlet column 101, and then enters the water control valve 303 in the first water outlet rotating arm 111. The water control valve 303 switches to the second water inlet pipe 302 passage, and hot water enters the brewing chamber 203 and flows evenly into the capsule. The hot water fully penetrates the coffee powder layer for extraction. The extracted coffee liquid flows out from the bottom of the capsule and enters the liquid outlet 205 at the bottom of the water inlet seat 201 through the leakage hole 209. It then flows out from the bottom of the first water outlet rotating arm 111 through the output hole 206 and finally falls into the user's container.

[0025] In addition, the water circuit control valve 303 is a conventional water circuit control structure, so its specific structure will not be described in detail.

[0026] Preferably, the brewing chamber 203 is located at the center of the water inlet 201, and the water outlet 202 is arranged around the outer periphery of the brewing chamber 203, making the structure more compact and providing not only conventional water passage connection function, but also coffee extraction function.

[0027] like Figure 1 , Figure 3As shown in the further explanation of the embodiment of the water outlet column 101, an inlet control valve 701 is provided at the top of the water outlet column 101. A connecting seat 702 is provided around the outer periphery of the inlet control valve 701. A water passage space is formed on the connecting seat 702. A water passage hole is formed around the inlet control valve 701, which is connected to the connecting seat 702. The water passage hole is placed in the water passage space. When the first water outlet rotating arm 111 rotates, the connecting seat 702 rotates around the inlet control valve 701, and the water passage hole always remains connected to the water passage space, ensuring that the water flow can smoothly enter the first water outlet rotating arm 111 at any rotation angle.

[0028] The water in the connecting seat 702 can be transported to the first water inlet pipe 301 or the second water inlet pipe 302 through the water control valve 303 to achieve water connection.

[0029] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, as a further explanation of the embodiment of the sealing cap 207, the sealing cap 207 is provided with a rotating snap-fit ​​protrusion 401, and the inner wall of the brewing chamber 203 is formed with a rotating groove 402 for the rotating snap-fit ​​protrusion 401 to be inserted. The rotating groove 402 is inclined downward along the screw-in direction. When the sealing cap 207 is rotated, it automatically moves downward along the inclined rotating groove 402, and simultaneously completes the compression of the coffee capsule. The rotating groove 402 and the snap-fit ​​protrusion cooperate to generate an axial locking force to prevent loosening or leakage during use.

[0030] Alternatively, threads can be provided on the sealing cap 207 and the brewing chamber 203, and the sealing cap 207 can be used to press the coffee capsule tightly by engaging with the brewing chamber 203.

[0031] The sealing cover 207 is provided with a rotating protrusion 606. When disassembling and installing the sealing cover 207, the rotating protrusion 606 can be rotated by hand to install and remove the sealing cover 207, thereby improving the user experience.

[0032] Specifically, the sealing cover 207 is provided with a puncture needle assembly 403. The puncture needle assembly 403 includes a sliding seat 501 slidably disposed on the sealing cover 207 and a plurality of puncture needles 502 disposed on the sliding seat 501. When the sliding seat 501 slides toward the brewing chamber 203, the puncture needles 502 extend out of the bottom of the sealing cover 207. The sealing cover 207 is provided with a return spring 503 that abuts against the sliding seat 501. The return spring 503 abuts against the sliding seat 501 so that the puncture needles 502 always have a tendency to retract into the sealing cover 207.

[0033] After the coffee capsule is placed, the sliding seat 501 can be pressed down to extend the piercing needle 502 to pierce the capsule. After releasing, it will automatically retract into the sealing cap 207 under the action of the return spring 503, avoiding accidental injury to fingers or damage to the capsule when taking it out, thus significantly improving the safety of use.

[0034] Furthermore, the sliding seat 501 includes a slide rod 801 slidably disposed on the sealing cover 207 and a mounting plate 802 disposed at the end of the slide rod 801. The piercing needle 502 is disposed on the mounting plate 802, and a leak-proof sealing ring 803 is disposed on the top of the mounting plate 802. The leak-proof sealing ring 803 abuts against the sealing cover 207 when the mounting plate 802 is in the retracted state, thereby further improving the sealing performance during coffee brewing.

[0035] The bottom of the sealing cap 207 is provided with several pressing protrusions 504, which are arranged circumferentially. The pressing protrusions 504 abut against the top of the coffee capsule. A hanging edge is formed on the coffee capsule. The pressing protrusions 504 are pressed on the hanging edge. The pressing protrusions 504 form a water inlet gap 505. The multiple pressing protrusions 504 are distributed circumferentially to make the upper end of the coffee capsule evenly stressed, ensuring a tight seal and preventing high-pressure leakage of hot water. Hot water can flow evenly into the coffee capsule through the water inlet gap 505 between the pressing protrusions 504, avoiding uneven extraction caused by single-point impact on coffee powder. Furthermore, the intermittent water inlet can reduce the probability of fine coffee powder backflow clogging the puncture hole and improve extraction stability.

[0036] Preferably, the pressing protrusion 504 is made of a high-temperature resistant, food-grade elastic material, such as silicone rubber (food-grade silicone), to avoid affecting the flavor of the brewed coffee.

[0037] Preferably, a compression sealing ring 605 is provided on the sealing cap 207. The compression sealing ring 605 abuts against the water inlet seat 201. When the sealing cap 207 is closed, the compression sealing ring 605 forms an elastic compression with the end face of the water inlet seat 201, which effectively prevents hot water from splashing or leaking out from the joint between the sealing cap 207 and the water inlet seat 201, ensuring safe use. It can also maintain a stable extraction pressure in the brewing chamber 203, allowing hot water to fully penetrate the coffee powder and improve the coffee concentration and oil extraction quality.

[0038] like Figure 3 , Figure 6 As shown, in a further explanation of the embodiment of the brewing chamber 203, the water inlet base 201 forms a brewing channel 506 that connects to the brewing chamber 203. The water inlet end of the brewing channel 506 is connected to the second water inlet pipe 302, and the water outlet end of the brewing channel 506 is located at the top of the brewing chamber 203. Hot water penetrates the coffee powder from the top of the capsule from top to bottom, making the extraction path more complete, thereby avoiding short circuits or insufficient extraction.

[0039] Specifically, the brewing chamber 203 is provided with a support protrusion 601 for supporting the coffee capsule, and a brewing sealing ring 602 is provided on the support protrusion 601. The brewing sealing ring 602 is arranged opposite to the pressing protrusion 504. The support protrusion 601 has a stepped structure and supports the bottom of the coffee capsule hanging side. The brewing sealing ring 602 on the support protrusion 601 and the pressing protrusion 504 form a vertical pressure, which can prevent the capsule from being deformed by pressure, ensure the high-pressure sealing of the brewing chamber 203, and suspend the coffee capsule body so that the bottom liquid outlet 205 is not blocked, and the coffee liquid can flow out smoothly without residue or blockage.

[0040] Furthermore, the water inlet seat 201 has a downwardly extending outlet pipe 603, which is connected to the brewing chamber 203. An outlet hole 205 is formed on the outlet pipe 603, and the outlet pipe 603 abuts against the inner wall of the first water outlet rotating arm 111 and is connected to the output hole 206.

[0041] By setting the outlet hole 205 at the lowest position of the outlet tube 603, it is ensured that no coffee liquid accumulates in the cavity after brewing, thereby improving the user experience.

[0042] Preferably, a water outlet sealing ring 604 is provided at the bottom of the outlet pipe 603. The water outlet sealing ring 604 abuts against the inner wall of the first water outlet rotating arm 111. The elasticity of the sealing ring can compensate for the slight alignment deviation between the water inlet seat 201 and the first water outlet rotating arm 111, ensuring that the two are always tightly fitted during rotation, and the sealing performance does not decrease due to rotation. The elastic sealing ring replaces hard friction, reducing direct contact wear between the outlet pipe 603 and the inner wall of the rotating arm, improving rotational smoothness and the service life of the entire machine. This specific embodiment is merely an explanation of the present invention and is not a limitation thereof. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A water purifier with a coffee brewing structure, comprising a water inlet base (1), a filter assembly (2) and a heating module disposed within the water inlet base (1), characterized in that, The water inlet base (1) is provided with a water outlet column (101), and a water outlet arm assembly (102) is rotated on the water outlet column (101). The water outlet arm assembly (102) includes a first water outlet arm (111) horizontally rotated on the water outlet column (101) and a second water outlet arm (112) horizontally rotated on the water outlet end of the first water outlet arm (111). The water outlet end of the second water outlet arm (112) forms a water outlet (113). The second water outlet rotating arm (112) has a water inlet seat (201) at its inlet end. The water inlet seat (201) is rotatably mounted on the first water outlet rotating arm (111). The water inlet seat (201) has a water outlet chamber (202) communicating with the first water outlet rotating arm (111) and a brewing chamber (203) for holding coffee capsules. The first water outlet rotating arm (111) has a water circuit control valve (303). The first water outlet rotating arm (111) selectively connects the water outlet chamber (202) and the brewing chamber (203) through the water circuit control valve (303). The brewing chamber (203) has a useful... The piercing platform (208) at the bottom of the coffee capsule is provided with a leakage hole (209) and a piercing needle (210). The second water outlet rotating arm (112) is provided with a connecting pipe (204) connecting the water outlet chamber (202) and the water outlet (113). The bottom of the water inlet seat (201) forms a liquid outlet hole (205) connecting the brewing chamber (203). The bottom of the first water outlet rotating arm (111) forms an output hole (206) connecting the liquid outlet hole (205). The water inlet seat (201) is provided with a sealing cap (207) for sealing and piercing the top of the coffee capsule.

2. A water purifier with a coffee brewing structure according to claim 1, characterized in that: The first water outlet rotating arm (111) is provided with a first water inlet pipe (301) and a second water inlet pipe (302). The water inlet end of the water circuit control valve (303) is connected to the water outlet end of the water outlet column (101). The first water inlet pipe (301) and the second water inlet pipe (302) are connected to the water circuit control valve (303). The first water inlet pipe (301) is connected to the water outlet chamber (202), and the second water inlet pipe (302) is connected to the brewing chamber (203).

3. A water purifier with a coffee brewing structure according to claim 1, characterized in that: The sealing cap (207) is provided with a rotating snap-fit ​​protrusion (401), and the inner wall of the brewing chamber (203) is provided with a rotating snap-fit ​​groove (402) for the rotating snap-fit ​​protrusion (401) to be inserted, and the rotating snap-fit ​​groove (402) is inclined downward along the screw-in direction.

4. A water purifier with a coffee brewing structure according to claim 1, characterized in that: The sealing cover (207) is provided with a puncture needle assembly (403). The puncture needle assembly (403) includes a sliding seat (501) slidably disposed on the sealing cover (207) and a plurality of puncture needles (502) disposed on the sliding seat (501). When the sliding seat (501) slides toward the brewing chamber (203), the puncture needles (502) extend out of the bottom of the sealing cover (207). The sealing cover (207) is provided with a return spring (503) abutting against the sliding seat (501) so that the puncture needles (502) always have a tendency to retract into the sealing cover (207).

5. A water purifier with a coffee brewing structure according to claim 1, characterized in that: The bottom of the sealing cap (207) is provided with a plurality of pressing protrusions (504), and the pressing protrusions (504) are arranged circumferentially at intervals. The pressing protrusions (504) abut against the top of the coffee capsule, and the pressing protrusions (504) form a water inlet gap (505) between them.

6. A water purifier with a coffee brewing structure according to claim 2, characterized in that: The water inlet base (201) forms a brewing channel (506) that connects to the brewing chamber (203). The water inlet end of the brewing channel (506) is located at the top of the water inlet base (201) and is connected to the second water inlet pipe (302). The water outlet end of the brewing channel (506) is located at the top of the brewing chamber (203).

7. A water purifier with a coffee brewing structure according to claim 5, characterized in that: The top of the brewing chamber (203) is provided with a support boss (601) for supporting coffee capsules, and a brewing sealing ring (602) is provided on the support boss (601), which is arranged opposite to the pressing protrusion (504).

8. A water purifier with a coffee brewing structure according to claim 1, characterized in that: The water inlet seat (201) has a downwardly extending outlet pipe (603) that connects to the brewing chamber (203). The outlet hole (205) is formed on the outlet pipe (603), and the outlet pipe (603) abuts against the inner wall of the first water outlet rotating arm (111) and connects to the output hole (206).

9. A water purifier with a coffee brewing structure according to claim 8, characterized in that: The bottom of the liquid outlet pipe (603) is provided with a water outlet sealing ring (604), which abuts against the inner wall of the first water outlet rotating arm (111).

10. A water purifier with a coffee brewing structure according to claim 1, characterized in that: The sealing cover (207) is provided with a compression sealing ring (605), which abuts against the water inlet seat (201).

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