阅读说明：本技术 自动旋转出水组件及咖啡机 (Automatic rotatory water outlet assembly and coffee machine ) 是由 张默晗 钟鹏睿 黄严樟 洪柏达 于 2021-09-28 设计创作，主要内容包括：本发明采公开了一种自动旋转出水组件,包括基座,在基座上设有水腔,水腔的底部中心处设有通孔,在水腔的底部分布有至少一圈洒水孔,在水腔中设有水轮,水轮位于通孔的上方,在基座的下端设有具有空腔的喷洒臂,喷洒臂可转动地固定在通孔上,水轮与喷洒臂之间设有传动齿组,以在水流从水轮的上方落下时,推动水轮,水轮驱动传动齿组转动以带动喷洒臂旋转。本发明还公开了一种咖啡机。与现有技术相比,通过水轮驱动传动齿组带动喷洒臂旋转,以模拟手冲咖啡的冲泡过程,不仅操作方便而且结构简单,由于无需人工冲泡,避免人工操作导致咖啡粉凝固的问题,无需电力驱动,从而节省能源,而且不存在电子器件,重量减轻,便于携带。(The invention discloses an automatic rotating water outlet assembly, which comprises a base, wherein a water cavity is arranged on the base, a through hole is formed in the center of the bottom of the water cavity, at least one circle of water spraying holes are distributed in the bottom of the water cavity, a water wheel is arranged in the water cavity and positioned above the through hole, a spraying arm with a cavity is arranged at the lower end of the base, the spraying arm is rotatably fixed on the through hole, a transmission tooth group is arranged between the water wheel and the spraying arm, so that when water flow falls from the upper side of the water wheel, the water wheel is pushed, and the water wheel drives the transmission tooth group to rotate so as to drive the spraying arm to rotate. The invention also discloses a coffee machine. Compared with the prior art, the water wheel drives the transmission gear set to drive the spraying arm to rotate so as to simulate the brewing process of manually brewing coffee, so that the coffee brewing machine is convenient to operate and simple in structure, avoids the problem of solidification of coffee powder caused by manual operation due to the fact that manual brewing is not needed, is free of electric drive, saves energy, does not have an electronic device, and is light in weight and convenient to carry.)

1. The utility model provides an automatic rotatory water subassembly which characterized in that: including base (7), be equipped with the water cavity on base (7), the bottom center department in water cavity is equipped with through-hole (2701), bottom cloth in water cavity has at least round watering hole (2704), be equipped with water wheels (33) in the water cavity, water wheels (33) are located the top of through-hole (2701), lower extreme at base (7) is equipped with spray arm (34) that have the cavity, spray arm (34) rotationally fix on through-hole (2701), be equipped with the transmission tooth group between water wheels (33) and spray arm (34), when rivers fall from the top of water wheels (33), promote water wheels (33), water wheels (33) drive transmission tooth group rotates in order to drive spray arm (34) rotatory.

2. The automatic rotary water outlet assembly of claim 1, wherein: the surface of the spraying arm (34) is provided with spraying holes, the center of the spraying arm (34) is provided with a water inlet hole (341), the water inlet hole (341) is internally provided with a first shaft (29) with a hole (2905), the lower end of the first shaft (29) is inserted into the cavity of the spraying arm (34) and is fixedly connected with the spraying arm (34), the upper end of the first shaft (29) is connected with the transmission gear group, the shaft wall of the first shaft (29) is provided with a first shaft water hole (2906) communicated with the hole (2905), the first shaft water hole (2906) is arranged in the cavity of the spraying arm (34), so that the bore 2905 of the first shaft (29) communicates with the cavity of the spray arm (34) through the first shaft water bore (2906), and water flows into the cavity of the spray arm (34) through the bore (2905) and the water inlet bore (341) on the first shaft (29) and is ejected from the spray bore and out through the water spray bore (2704) on the base (7).

3. The automatic rotary water outlet assembly of claim 2, wherein: the transmission gear set comprises a driving gear (23), a transmission gear and a crown gear (26), the driving gear (23) is arranged on a fan shaft (3301) of the water wheel (33), the crown gear (26) is arranged below the water wheel (33) and is connected with the first shaft (29), and the transmission gear is arranged between the driving gear (23) and the crown gear (26) and is respectively meshed with the driving gear (23) and the crown gear (26) to realize steering.

4. The automatic rotary water outlet assembly of claim 3, wherein: the transmission gear is a double-layer gear consisting of a first transmission gear (37) and a second transmission gear (22), the first transmission gear (37) and the second transmission gear (22) are coaxially arranged, the first transmission gear (37) and the second transmission gear (22) are fixed on a gear seat (19) arranged in a water cavity of the base (7) through a second shaft (21), the second transmission gear (22) is meshed with the driving gear (23), and the first transmission gear (37) is meshed with the crown gear (26).

5. The automatic rotary water outlet assembly of claim 4, wherein: the base (7) comprises a circular disc-shaped lower cover (27) and a circular disc-shaped upper cover (18), a through hole (2701) is formed in the center of the lower cover (27), water spraying holes (2704) are distributed in the lower cover (27), a water wheel (33) is fixed on the lower cover (27) through a supporting seat (36), a gear seat (19) is fixed on the lower cover (27), a circle of convex ring (2702) is arranged at the position, close to the circumference, of the lower cover (27), the upper cover (18) is fixed on the convex ring (2702) in a sealing mode, a water cavity is formed between the upper cover (18) and the lower cover (27), a first hole (1801) at least exposing the water wheel (33) is formed in the center of the upper cover (18), and the first hole (1801) and the through hole (2701) are arranged coaxially.

6. The automatic rotary water outlet assembly of claim 5, wherein: the supporting seat (36) is symmetrically provided with supporting arms (3601) extending to the upper side of the through hole (2701), one supporting arm (3601) is provided with a shaft hole (3602), the other supporting arm (3601) is provided with a shaft clamping groove (3603), one end of the fan shaft (3301) is inserted into the shaft hole (3602), and the other end of the fan shaft is clamped in the shaft clamping groove (3603).

7. The self-rotating water outlet assembly according to claim 6, wherein: the gear seat (19) and the supporting seat (36) are arranged around the through hole (2701), and the gear seat (19) is arranged on one side of the supporting arm (3601) of the supporting seat (36) with the shaft clamping groove (3603).

8. The automatic rotary water outlet assembly according to any one of claims 1 to 7, wherein: the watering holes (2704) are distributed at a position of the base (7) outside the rotation trajectory of the spray arm (34).

9. The self-rotating water outlet assembly according to claim 8, wherein: be equipped with connector (3001) on spray arm (34), the center department of connector (3001) is located in inlet opening (341), connector (3001) is fixed in through-hole (2701) through first sealing washer (28), be equipped with first seal ring groove (281) on the interior pore wall of first sealing washer (28), be equipped with on the outer wall of connector (3001) with bulge loop (3004) of first seal ring groove (281) looks adaptation, connector (3001) are through bulge loop (3004) and first seal ring groove (281) joint, rotationally fix on first sealing washer (28) in order to realize spray arm (34), be equipped with second seal ring groove (282) on the outer wall of first sealing washer (28), first sealing washer (28) are through the second card on second seal ring groove (282) through-hole (2701).

10. The utility model provides a coffee machine, includes cup (10), coffee filter cup storehouse (35), hot water outlet device (6) that follow supreme setting gradually down, its characterized in that: further comprising an automatic rotating water outlet assembly according to any one of claims 1 to 9, wherein the base (7) is covered on the coffee cup chamber (35), and the water outlet of the hot water outlet device (6) is opposite to the water wheel (33).

Technical Field

The invention relates to a household appliance, in particular to an automatic rotating water outlet assembly and a coffee machine.

Background

At present, the existing coffee appliances and water outlet modes in the market adopt direct flow type or spray type water outlet for brewing coffee, professional coffee brewing is completed through manual operation, appliances needing to be prepared are more, such as a hand brewing kettle, a coffee filter cup, a coffee cup, filter paper and the like, people have no time to slowly and manually make a cup of coffee at all because of busy work, and people can only wait in places such as a coffee shop for drinking a cup of coffee which accords with the taste of the people.

However, coffee machines capable of automatically rotating to discharge water exist in the market, but the coffee machines can only be used for making one cup, if a user needs to share the coffee machines by multiple people, the operation is time-consuming, the brewing process is troublesome, and the coffee machines are inconvenient to carry.

Disclosure of Invention

The invention aims to provide an automatic rotating water outlet assembly and a coffee machine, and aims to solve the technical problems of convenience in operation, simple structure and convenience in carrying, and a spraying arm can rotate without being driven by electric power.

In order to solve the problems, the invention adopts the following technical scheme: the utility model provides an automatic rotatory water subassembly, which comprises a base, be equipped with the water cavity on the base, the bottom center department in water cavity is equipped with the through-hole, bottom distribution in water cavity has at least round watering hole, be equipped with water wheels in the water cavity, water wheels is located the top of through-hole, lower extreme at the base is equipped with the arm that sprays that has the cavity, it rotationally fixes on the through-hole to spray the arm, be equipped with the transmission tooth group between water wheels and the arm that sprays, when the top of following water wheels is fallen at rivers, promote water wheels, water wheels drive transmission tooth group rotates in order to drive and spray the arm rotation.

Further, the arm that sprays is equipped with on the surface and sprays the hole, center department at the arm that sprays is equipped with the inlet opening, be equipped with the porose primary shaft in the inlet opening, the lower extreme of primary shaft inserts in the cavity of spraying the arm and is connected fixedly with spraying the arm, the upper end and the transmission tooth group link of primary shaft, be equipped with the primary shaft water hole with the hole intercommunication on the axle wall of primary shaft, the primary shaft water hole is located in the cavity of spraying the arm, so that the hole of primary shaft passes through the primary shaft water hole and sprays the cavity intercommunication of arm, rivers flow into in the cavity of spraying the arm and by spraying the hole blowout through primary shaft hole and inlet opening, and spray the hole blowout through on the base.

Furthermore, the transmission gear group comprises a driving gear, a transmission gear and a crown gear, the driving gear is arranged on a fan shaft of the water wheel, the crown gear is arranged below the water wheel and connected with the first shaft, and the transmission gear is arranged between the driving gear and the crown gear and respectively meshed with the driving gear and the crown gear so as to realize steering.

Furthermore, the transmission gear is a double-layer gear consisting of a first transmission gear and a second transmission gear, the first transmission gear and the second transmission gear are coaxially arranged, the first transmission gear and the second transmission gear are fixed on a gear seat arranged in a water cavity of the base through a second shaft, the second transmission gear is meshed with the driving gear, and the first transmission gear is meshed with the crown gear.

Further, the base includes circular discoid lower cover and circular discoid upper cover, and the center department of lower cover is located to the through-hole, and the hole distribution that sprinkles is covered under, and the water wheels passes through the supporting seat to be fixed on the lower cover, and the pinion stand is fixed on the lower cover, is equipped with the round bulge loop near circumference department at the lower cover, and the upper cover is sealed to be fixed on the bulge loop to form the water cavity between upper cover and the lower cover, be equipped with the first hole that exposes the water wheels at least in the center department of upper cover, first hole and through-hole coaxial setting.

Furthermore, the supporting seat is symmetrically provided with supporting arms extending to the upper part of the through hole, one of the supporting arms is provided with a shaft hole, the other supporting arm is provided with a shaft clamping groove, one end of the fan shaft is inserted into the shaft hole, and the other end of the fan shaft is clamped in the shaft clamping groove.

Further, gear seat and supporting seat set up around the through-hole, and one side that has the support arm of axle draw-in groove of supporting seat is located to the gear seat.

Further, the water spray holes are distributed at positions of the base outside the rotation track of the spray arm.

Further, be equipped with the connector on the spray arm, the center department of connector is located to the inlet opening, the connector is fixed in the through-hole through first sealing washer, be equipped with first seal ring groove on the interior pore wall of first sealing washer, be equipped with on the outer wall of connector with the bulge loop of first seal ring groove looks adaptation, the connector passes through bulge loop and first seal ring groove joint to realize that the spray arm rotationally fixes on first seal ring, be equipped with the second seal ring groove on the outer wall of first sealing washer, first sealing washer passes through the second seal ring groove card on the through-hole.

The invention also discloses a coffee machine, which comprises a cup base, a coffee filtering cup bin, a hot water outlet device and the automatic rotating water outlet assembly, wherein the cup base, the coffee filtering cup bin and the hot water outlet device are sequentially arranged from bottom to top, the base is covered on the coffee filtering cup bin, and a water outlet of the hot water outlet device is opposite to the water wheel.

Compared with the prior art, the rotatable spraying arm is arranged on the base, the water wheel drives the transmission gear group to drive the spraying arm to rotate, so that the brewing process of manually brewing coffee is simulated, the manual brewing is not needed, the problem that coffee powder is solidified due to manual operation is avoided, the spraying arm drives the water wheel to rotate through hot water, the electric drive is not needed, energy is saved, electronic devices are not used, the weight is reduced, and the portable coffee maker is convenient to carry.

Drawings

Fig. 1 is a schematic structural view of the automatic rotating water outlet assembly of the present invention.

Fig. 2 is a schematic structural view illustrating the disassembly of the automatic rotating water outlet assembly of the present invention.

Fig. 3 is a partial sectional structural schematic view of the automatic rotating water outlet assembly of the present invention.

Fig. 4 is a schematic structural view of the automatic rotating water outlet assembly and the coffee maker thereof.

Fig. 5 is a sectional view of the automatic water outlet assembly and the coffee maker thereof according to the present invention.

Fig. 6 is a sectional structural schematic view of a water wheel in the automatic rotating water outlet assembly of the invention.

FIG. 7 is a schematic cross-sectional view of the transmission gear and the driving gear of the present invention.

Figure 8 is a cross-sectional structural schematic of the crown gear and effluent swivel assembly of the present invention.

Fig. 9 is an enlarged schematic view of a partial structure of the automatic rotary water outlet assembly of the present invention.

Fig. 10 is a schematic view of the bottom of the automatic rotating water discharging assembly of the present invention.

Fig. 11 is a schematic view of the first shaft and crown gear of the present invention. .

FIG. 12 is a schematic view of the structure of the transmission gear and the second shaft of the present invention.

Fig. 13 is a schematic structural view of the lower seat of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1, 2, 3 and 9, the present invention discloses an automatic rotary water outlet assembly, which includes a base 7, the base 7 may have a circular shape so that the base 7 can be used by covering an existing coffee filter, a water chamber 71 is provided on the base 7, the water chamber 71 is used for temporarily storing falling water, a through hole 2701 is provided at the center of the bottom of the water chamber 71, at least one circle of water spray holes 2704 are distributed at the bottom of the water chamber 2701, a water wheel 33 fixed above the through hole 2701 by a support base 36 is provided in the water chamber 2701, a spray arm 34 is provided at the lower end of the base 7, the spray arm 34 has a hollow cavity, the spray arm 34 is rotatably fixed on the through hole 2701, a spray hole 3002 is provided on the surface of the spray arm 34, a water inlet hole 341 is provided at the center of the spray arm 34, a first shaft 2603 having a hole 2905 is provided in the water inlet hole 341, the lower end of the first shaft 29 is inserted into the hollow cavity of the spray arm 34 and is fixedly connected with the spray arm 34, a first water hole 2906 (shown in fig. 6, 8 and 9) is formed in the shaft wall of the first shaft 29 and communicates with the hole 2905, the first water hole 2906 is formed in the cavity of the spray arm 34 so that the hole 2905 of the first shaft 29 communicates with the cavity of the spray arm 34 through the first water hole 2906, a transmission gear set is formed between the water wheel 33 and the first shaft 29, the upper end of the first shaft 29 is fixed to the transmission gear set so as to push the water wheel 33 when water falls from above the water wheel 33, the water wheel 33 drives the transmission gear set to rotate so as to drive the spray arm 34 on the first shaft 29 to rotate, and meanwhile, the water flows into the cavity of the spray arm 34 through the hole 2905 and the water inlet 341 on the first shaft 29 and is sprayed out through the spray hole 3002 and through the water spray hole 2704 on the base 7.

For convenience of use, a water storage tank (not shown) may be provided on the base 7 to enable the automatic rotary water outlet assembly to be used alone with an existing coffee filter.

As shown in fig. 2, the water wheel 33 includes a fan blade 3302, the fan blade 3302 is composed of a plurality of blades, a shaft sleeve is disposed at the center of the blade, the blades are arc-shaped and are uniformly distributed on the shaft sleeve, a fan shaft 3301 penetrates through the shaft sleeve, two ends of the fan shaft 3301 are fixed on the supporting base 36, the recessed portion of the blade deviates from the through hole 2701, and as an embodiment, the blades are provided with 7 blades.

As shown in fig. 1, 2 and 3, the transmission gear set includes a driving gear 23, a transmission gear and a crown gear 26, the driving gear 23 is disposed on the fan shaft 3301 of the water wheel 33, the crown gear 26 is disposed below the water wheel 33 and connected to the first shaft 29, and the transmission gear is disposed between the driving gear 23 and the crown gear 26 and respectively engaged with the driving gear 23 and the crown gear 26 to achieve steering.

As shown in fig. 2 and 3, the transmission gear is vertically placed, the axis of the second shaft 21 of the transmission gear is parallel to the axis of the fan shaft 3301, a circle of groove 2902 is arranged on the first shaft 29, a protrusion 2903 (shown in fig. 11) is arranged on the first shaft 29 and located at the lower end of the groove 2902, so that the protrusion 2903 abuts against the lower end of the crown gear 26 after the upper end of the first shaft 29 passes through the gear hole of the crown gear 26, and is clamped in the groove 2902 through a clamping ring 25, so as to limit and fix the crown gear 26, the protrusion 2903 can be arranged around the first shaft 29 for a circle, of course, a first limit groove 261 is arranged on the edge of the gear hole of the crown gear 26, and a first limit block 2907 adapted to the first limit groove 261 is arranged on the first shaft 29 and located between the protrusion 2903 and the groove 2902, so that the first shaft 29 is driven to rotate together with the first shaft 29 when the crown gear 26 rotates; as shown in fig. 2 and 6, a convex cap 2901 with a diameter larger than that of the first shaft 29 may be further disposed at the upper end of the first shaft 29, the concave groove 2902, the convex protrusion 2903, and the first stopper 2907 are disposed on the convex cap 2901, and the gear hole of the crown gear 26 is matched with the convex cap 2901.

As shown in fig. 2 and 3, the transmission gear is a double-layer gear composed of a first transmission gear 37 and a second transmission gear 22, the first transmission gear 37 and the second transmission gear 22 may adopt a separate structure or an integral structure, the first transmission gear 37 and the second transmission gear 22 are coaxially arranged, the first transmission gear 37 and the second transmission gear 22 are fixed on a gear seat 19 arranged in the water cavity 2701 through a second shaft 21, the second transmission gear 22 is meshed with the driving gear 23, and the first transmission gear 37 is meshed with the crown gear 26.

As an implementation manner, the diameter of the first transmission gear 37 is larger than that of the second transmission gear 22, and the first transmission gear 37 and the second transmission gear 22 adopt a separated structure and are connected together by the second shaft 21, specifically, the second shaft 21 includes a shaft portion 2103, a cap ring 2101 with a diameter larger than that of the shaft portion 2103 is arranged at one end of the shaft portion 2103, a two-stage stepped structure 2104 with a diameter decreasing in sequence is arranged at the other end of the shaft portion 2103, second limit blocks 2105 (shown in fig. 12) are respectively arranged on the two-stage stepped structure 2104, a second limit groove 371 and a third limit groove 221 which are matched with the second limit block 2105 are respectively arranged on the gear hole edges of the first transmission gear 37 and the second transmission gear 22, so that the second limit block 2105 on the first stage is inserted into the second limit groove 371 after the first transmission gear 37 is connected to the first stage of the stepped structure 2104, after the second transmission gear 22 is connected to the second step of the step structure 2104, the second limit block 2105 on the second step is inserted into the third limit groove 221; a shaft cap 24 is further arranged on the second-stage step, the shaft cap 24 is sleeved on the second-stage step, and the second shaft 21 is fixed on the gear seat 19 through the part of the shaft part between the cap ring 2101 and the first transmission gear 37; the cap 24 can be secured to the second step of the stepped structure 2104 by snap-fitting.

As shown in fig. 2 and 3, a gear cover plate 1901 is disposed on the gear seat 19, and an arc-shaped groove 1902 is disposed on the gear seat 19 and the gear cover plate 1901 respectively and adapted to the shaft portion 2103 of the second shaft 21, so as to fit the shaft portion 2103 in the arc-shaped groove 1902, and since the diameters of the cap ring 2101 and the first transmission gear 37 are larger than the diameter of the shaft portion 2103, the cap ring 2101 and the first transmission gear 37 play a role in limiting.

As shown in fig. 2 and 3, in the present invention, the base 7 includes a circular disk-shaped lower cover 27 and a circular disk-shaped upper cover 18, a through hole 2701 is provided at the center of the lower cover 27, water spraying holes 2704 are distributed on the lower cover 27, a circle of water spraying holes 2704 is provided, a support seat 36 is fixed on the lower cover 27, a gear seat 19 is fixed on the lower cover 27, second fixing posts 1903 are respectively provided at opposite sides of the gear seat 19, the gear cover plate 1901 is fixed on the second fixing posts 1903 by first screws 17, a first fixing post 2703 is provided on the lower cover 27, the upper cover 18 is connected with the first fixing post 2703 by third screws 1703 through screw holes 1803, so as to achieve the connection and fixation of the upper cover 18 and the lower cover 27, a circle of convex ring 2702 is provided at a position near the circumference of the lower cover 27, the upper cover 18 is hermetically fixed on the convex ring 2702, so as to form a water chamber between the upper cover 18 and the lower cover 27, a first hole 1801 for exposing at least the water wheel 33 is provided at the center of the upper cover 18, the first hole 1801 is coaxial with the through hole 2701, specifically, the diameter of the first hole 1801 is larger than that of the through hole 2701, an upturned flange 1802 is arranged on the edge of the first hole 1801, and the flange 1802 surrounds the support seat 36 and the gear seat 19.

When the threads are arranged on the inner wall of the flange 1802, the water storage tank can be fastened on the base 7 in a threaded connection mode, and therefore the independent use of the automatic rotating water outlet assembly is achieved.

As shown in fig. 2 and 3, a bead groove 2704 is provided in the bead 2702 of the lower cover 27, a third seal ring 20 is provided in the bead groove 2704, and an abutting portion 1804 is provided in the upper cover 18 corresponding to the bead groove 2704, and the abutting portion 1804 is inserted into the bead groove 2704, thereby further achieving a waterproof sealing effect.

As shown in fig. 2, 3 and 13, the support base 36 is symmetrically provided with support arms 3601 extending above the through hole 2701, one of the support arms 3601 is provided with a shaft hole 3602, the other support arm 3601 is provided with a shaft locking groove 3603, one end of the fan shaft 3301 is inserted into the shaft hole 3602, and the other end is locked in the shaft locking groove 3603. In the present invention, the gear holder 19 and the support base 36 are disposed around the through hole 2701, and the gear holder 19 is disposed on the support arm 3601 side of the support base 36 having the shaft engaging groove 3603.

As shown in FIG. 10, the spray apertures 2704 are distributed at locations on the base 7 that are outside the rotational trajectory of the spray arm 34 so as not to obscure the spray apertures 2704 as the spray arm 34 rotates.

As shown in fig. 2, 6 and 10, the spray arm 34 is a rectangular strip structure, and includes an arm cover plate 30 and a groove plate 32, wherein the arm cover plate 30 and the groove plate 32 are both provided with inner cavities to form a cavity after combination, a second sealing ring 31 is disposed between the arm cover plate 30 and the groove plate 32 and is fixedly connected by a second screw, a connector 3001 is disposed at the center of the arm cover plate 30, a water inlet 341 is disposed at the center of the connector 3001, the connector 3001 is fixed in the through hole 2701 by a first sealing ring 28, a first sealing ring groove 281 is disposed on the inner wall of the first sealing ring 28, a protruding ring 3004 adapted to the first sealing ring groove 281 is disposed on the outer wall of the connector 3001, the connector 3001 is clamped with the first sealing ring groove 281 by the protruding ring 3004 to enable the spray arm 34 to be rotatably fixed on the first sealing ring 28, two protruding rings 3004 are disposed, correspondingly, two first sealing ring grooves 281 are also disposed, a second seal ring groove 282 is formed in the outer wall of the first seal ring 28, and the first seal ring 28 is clamped in the through hole 2701 through the second seal ring groove 282; the spraying holes 3002 are arranged on the slotted plate 32 and are arranged at intervals along the length direction of the slotted plate 32, a shaft groove 3003 tightly connected with the first shaft 29 is arranged at the center of the slotted plate 32, a concave platform 2904 with the diameter smaller than that of the first shaft 29 is arranged at the lower end of the first shaft 29, and the concave platform 2904 is matched with the shaft groove 3003; the first shaft 29 is fixedly connected with the spray arm 34 in a plugging manner; when the first shaft 29 is connected to the spray arm 34, there is a distance between the inlet 341 and the first shaft 29, so that water can also flow from this distance into the cavity of the spray arm 34.

As shown in fig. 6, the spray holes 3002 are symmetrically provided on the groove plate 32 at both sides of the shaft groove 3003, and three spray holes 3002 are provided at each side.

As shown in fig. 6, 7, 8, 9 and 10, when hot water is poured downwards above the water wheel 33, the hot water enters the first hole 1801, the hot water falls on the fan 3302 of the water wheel 33, the fan 3302 is driven by the water impact to rotate counterclockwise, the rotation of the water wheel 33 drives the driving gear 23 fixed on the fan shaft 3301 of the water wheel 33 to rotate counterclockwise, the counterclockwise rotation of the driving gear 23 drives the second transmission gear 22 engaged therewith to rotate clockwise, the clockwise rotation of the second transmission gear 22 drives the first transmission gear 37 fixed with the second transmission gear 22 side by side to rotate clockwise, the clockwise rotation of the first transmission gear 37 drives the crown gear 26 engaged therewith to rotate counterclockwise, the rotation of the crown gear 26 drives the spray arm 34 fixed on the first shaft 29 to rotate counterclockwise, wherein a part of the boiled water flows from the water wheel 33 and falls in the hole 2905 of the first shaft 29, then flows into the spray arm 34 from the first axial water hole 2906 on the first shaft 29, and sprays on the coffee powder of the coffee filter bowl through the spray holes 3002 on the trough plate 32 of the spray arm 34, because the spray arm 34 is rotated, the spray arm 34 sprays hot water onto the coffee powder of the coffee filter bowl in a rotating manner, and the hot water is sprayed on the coffee powder in a rotating manner like making coffee by hand, and another part of the boiled water flows onto the crown gear 26 from the water wheel 33, flows onto the lower seat 27 from the gear gap on the crown gear 26, is sprayed on the coffee powder of the coffee filter bowl through the water spray holes 2704 arranged on the lower seat 27 and flows into the cavity of the spray arm 34 from the space between the first shaft 29 and the water inlet 341.

As shown in fig. 4 and 5, the invention further discloses an embodiment of applying the above automatic rotating water outlet assembly to an existing coffee machine, the coffee machine comprises a cup base 10, a coffee filtering cup bin 35 and a hot water outlet device 6 which are sequentially arranged from bottom to top, the coffee machine further comprises a water tank 1, a water pump 3 is arranged between the water tank 1 and the cup base 10, the water tank 1 is connected with the water pump 3 through a first water pipe 4, the water pump 3 is connected with a rapid heating pipe 2, the rapid heating pipe 2 is connected with the hot water outlet device 6 through a second water pipe 5, the automatic rotating water outlet assembly 11 is arranged between the hot water outlet device 6 and the coffee filtering cup bin 35, a base 7 covers the coffee filtering cup bin 35, and a water outlet of the hot water outlet device 6 is opposite to a water wheel 33 in a first hole 1801.

When a 'start/stop' button on a control panel of the coffee machine is pressed, the water pump 3 is electrified to start pumping water, water in the water tank 1 passes through the water guide seat 14, the water pump 3 pumps water into the water through the first water pipe 4, the water enters the rapid heating pipe 2 through the water outlet end of the water pump 3, boiled water heated by the rapid heating pipe 2 flows into the second water pipe 5 and then enters the hot water outlet device 6 through the water inlet 6001, the boiled water flows out through the water outlet 6002 of the hot water outlet device 6, the hot water enters the first hole 1801, the hot water falls on the fan blade 3302 of the water wheel 33, the fan blade 3302 is driven to rotate anticlockwise by the impulsive force of the water, the driving gear 23 fixed on the fan shaft 3301 of the water wheel 33 is driven to rotate anticlockwise, the second transmission gear 22 meshed with the driving gear 23 to rotate clockwise, the first transmission gear 37 fixed with the second transmission gear 22 side by side is driven to rotate clockwise by the clockwise rotation of the second transmission gear 22, the clockwise rotation of the first drive gear 37 drives the crown gear 26 engaged therewith to rotate counterclockwise, the rotation of the crown gear 26 drives the spray arm 34 fixed to the first shaft 29 to rotate counterclockwise, wherein a portion of the boiled water flows from the water wheel 33 to fall into the hole 2905 of the first shaft 29, then flows from the first axial water hole 2906 on the first shaft 29 to the spray arm 34, and is sprayed onto the ground coffee in the coffee filter bowl through the spray holes 3002 on the trough plate 32 of the spray arm 34, and since the spray arm 34 is rotated, the spray arm 34 rotates to spray hot water onto the ground coffee in the coffee filter bowl, so that the hot water is sprayed onto the ground coffee like artificial coffee, and another portion of the boiled water flows from the water wheel 33 to the crown gear 26, then flows from the gear gap on the crown gear 26 to the lower seat 27, is sprayed onto the ground coffee in the coffee filter bowl through the water spray holes 2704 provided on the lower seat 27 and flows from the gap between the first shaft 29 and the water inlet hole 341 into the cavity of the spray arm 34, then the water outlet switch under the coffee filter cup bin 8 is opened manually, so that the coffee flows into the coffee cup 9. Thus, the whole coffee brewing process of the automatic rotating water outlet coffee machine is completed. When any stop operation is needed in the midway, only the start/stop button needs to be pressed.

The invention can avoid the condition that the brewing effect is influenced by the solidification of the coffee powder production caused by manual operation when brewing, and the requirement of a consumer can not be met; the invention has the advantages of convenient operation, profession, safety, use, low cost, strong reliability and the like.