CN111067363A - Milk powder making machine and powder outlet sealing mechanism thereof - Google Patents

Abstract

The invention provides a powder outlet sealing mechanism, which is used for a powder brewing device, such as a milk machine, the powder brewing device comprises a powder bin for storing powder, a stirring bin for stirring and a powder outlet arranged between the powder outlet of the powder bin and the inlet of the stirring bin, the powder outlet sealing mechanism comprises a powder bin door detachably arranged on one side surface of the powder brewing device corresponding to the powder outlet and a baffle plate arranged in the powder brewing device, the baffle plate can be driven to move between a first position and a second position, when the baffle plate is positioned at the first position, the powder outlet is in an open state, and when the baffle plate is positioned at the second position, the powder outlet is sealed and blocked by the baffle plate.

Description

Milk powder making machine and powder outlet sealing mechanism thereof

Technical Field

The invention relates to the field of brewing and adjusting, in particular to a milk brewing machine and a powder outlet sealing mechanism thereof.

Background

The existing powder brewing device such as an intelligent milk brewing machine for brewing formula milk powder, a coffee machine for brewing coffee and the like is provided with a powder bin for storing powder and a stirring bin for mixing, stirring and brewing, a powder outlet of the powder bin and an inlet of the stirring bin are provided with a powder outlet, and most of the existing powder outlets are open, have no sealing facility and are fixedly arranged in the milk brewing machine. During the powder discharging process, the powder such as the milk powder is sticky or static, so that the milk powder is stuck at the powder discharging port and cannot be taken out for cleaning. And the stirring storehouse can have a large amount of steam from the powder outlet department that the powder storehouse was reachd to the powder mouth department down at the heating milk powder or use hot water to wash the in-process, causes the adhesion to condense the blocking up the condition of powder outlet department at the powder storehouse and appear, and difficult clearance makes the unable normal work of machine of dashing milk moreover. Under some conditions, steam even can get into in the powder storehouse and make the milk powder in the powder storehouse moist, seriously influence the milk powder quality, perhaps get into in the machine of dashing milk other positions and cause the spare part of this position to wet, long-term so can reduce the life of the machine of dashing milk, can directly lead to consequences such as internal circuit short circuit when serious.

Disclosure of Invention

In view of the above, the present invention provides a sealing mechanism for a powder outlet, which can seal the powder outlet and can be detached for cleaning.

The invention also provides a milk making machine with the powder outlet sealing mechanism.

The invention provides a lower powder opening sealing mechanism which is used for a powder brewing device, wherein the powder brewing device comprises a powder bin for storing powder, a stirring bin for stirring and a lower powder opening arranged between a powder outlet of the powder bin and an inlet of the stirring bin, the lower powder opening sealing mechanism comprises a powder bin door which is detachably arranged on one side surface of the powder brewing device corresponding to the lower powder opening and a baffle plate arranged in the powder brewing device, the baffle plate can be driven to move between a first position and a second position, when the baffle plate is positioned at the first position, the lower powder opening is in an open state, and when the baffle plate is positioned at the second position, the lower powder opening is sealed and plugged by the baffle plate.

In one embodiment, the baffle is detachably mounted, so that the baffle can be detached from the powder bin door for cleaning.

In an embodiment, the lower powder opening sealing mechanism further comprises a powder storage box, the powder storage box is arranged on the bottom side of the baffle plate and used for collecting powder accumulated at the baffle plate and the lower powder opening, and the powder storage box is detachably mounted, so that the powder storage box can be detached from the powder bin door for cleaning.

In one embodiment, a connecting piece for supporting and fixing the lower powder opening is arranged around the lower powder opening in a surrounding manner, a side plate protruding upwards is arranged on the periphery of the connecting piece, a sliding groove is formed by the side plates in a surrounding manner, the baffle is arranged in the sliding groove in a sliding manner, a supporting piece is arranged between the powder bin door and the lower powder opening, the powder storage box is arranged on the supporting piece in a sliding manner, and the baffle is arranged on the powder storage box in a sliding manner.

In one embodiment, a synchronous motor is connected to the baffle plate and used for driving the baffle plate to move between the first position and the second position, the synchronous motor comprises a motor main body, a base, a first microswitch and a second microswitch, wherein the motor main body is provided with a rotating shaft extending out of the bottom of the motor main body, the base comprises a base plate, a driving rod arranged on the top surface of the base plate and a driving block convexly arranged on the outer edge of the bottom surface of the base plate, the rotating shaft is in driving connection with the driving rod, the driving block is in driving connection with the baffle, the driving rod is provided with a cam, the cam is provided with a bulge protruding towards one side, and the first microswitch and the second microswitch are respectively arranged on two sides of the cam and respectively provided with a touch button which is used for being matched with the bulge and convexly arranged.

In one embodiment, the baffle plate comprises a blocking portion and a driving connecting portion, the blocking portion is used for blocking and sealing the powder outlet, and a driving hole used for being in driving fit with the driving block is formed in the driving connecting portion.

In an embodiment, the sealing mechanism of the lower powder opening further includes a third micro switch, the third micro switch is used for cooperating with the baffle to detect the on-off state of the lower powder opening, when the baffle moves to the second position, the baffle triggers the third micro switch to start, and when the baffle leaves the second position, the baffle triggers the third micro switch to turn off.

In one embodiment, a powder scraping part is arranged above the baffle plate, and when the baffle plate moves between the first position and the second position, the powder scraping part is used for scraping accumulated powder on the top surface of the baffle plate.

In an embodiment, an opening is formed in a side wall of the powder brewing device, the powder bin door is detachably mounted in the opening, a fastening piece is arranged at the top of the opening, a claw absorbing structure is arranged at the bottom of the opening, a fastening pin matched with the fastening piece is arranged at the top of the inner side surface of the powder bin door, a lock pin matched with the claw absorbing structure is arranged at the bottom of the inner side surface of the powder bin door, and a button is arranged at the position, corresponding to the lock pin, of the outer side surface of the powder bin door, so that the lock pin can be locked or unlocked by the claw absorbing structure by pressing the button.

The invention also provides a milk making machine which comprises the powder outlet sealing mechanism.

In summary, the present invention provides a sealing mechanism for a powder outlet, which can seal the powder outlet and can be disassembled for cleaning, and a milk machine with the sealing mechanism for the powder outlet. An opening is arranged on a side wall of the milk making machine corresponding to the powder outlet, a powder bin door is detachably arranged in the opening, and a baffle plate and a powder storage box are arranged between the powder bin door and the powder outlet. The baffle can slide between a first position and a second position, and when the baffle is positioned at the first position, the powder outlet is in an open state; when the powder outlet is located at the second position, the baffle blocks and seals the powder outlet. The powder storage box is used for collecting accumulated powder on the powder outlet and the baffle, and the baffle and the powder storage box are designed into a detachable installation structure, so that the baffle and the powder storage box can be directly detached from the opening to be cleaned or replaced, the detaching and installing actions are simple and convenient, and convenience is brought to a user. A synchronous motor is connected to the baffle plate, and the baffle plate is controlled to move between the first position and the second position by the synchronous motor.

Drawings

Fig. 1 is a schematic perspective view of a lower nozzle sealing mechanism according to the present invention.

Fig. 2 is a partially exploded view of the sealing mechanism of the lower nozzle in fig. 1.

Fig. 3 is an exploded view of the lower nozzle sealing mechanism of fig. 1 at an angle.

Fig. 4 is an exploded view of the lower nozzle sealing mechanism of fig. 1 at another angle.

Fig. 5 is an exploded schematic view of a synchronous machine.

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The invention is capable of embodiments in other forms of implementation. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

As shown in fig. 1 to 4, the present invention provides a sealing mechanism for a powder outlet, which can be used in a powder brewing device, such as a milk machine or a coffee machine, in this embodiment, the powder brewing device is implemented as a milk machine for preparing formula powder. Dash milk machine is equipped with out the powder mouth including the powder storehouse that is used for storing milk powder and the stirring storehouse that is used for mixing the stirring in order to dash and transfer milk powder, the bottom in powder storehouse, and the top in stirring storehouse is equipped with the powder entry, and the powder storehouse is located the top in stirring storehouse, and goes out the powder mouth and correspond the setting with the powder entry. The milk powder making machine further comprises a powder outlet 10 positioned between the powder outlet and the powder inlet, a mounting support is arranged in the milk powder making machine, and the powder outlet 10 and the powder outlet sealing mechanism are connected and fixed onto the mounting support, for example, through screws.

The powder outlet sealing mechanism comprises a powder bin door 14 detachably arranged on one side wall 12 of the milk preparing machine corresponding to the powder outlet 10 and a baffle 16 arranged in the milk preparing machine. The baffle 16 is arranged to be driven to move between a first position and a second position, when the baffle 16 is located at the first position, the powder outlet 10 is in an open state, at the moment, the milk making machine is in a powder discharging state, and milk powder in the powder bin can be discharged from the powder inlet into the stirring bin through the powder outlet and the powder outlet 10; when the baffle 16 is located at the second position, the powder outlet 10 is sealed by the baffle 16, and the milk machine is in a state that powder cannot be discharged, and the milk machine can perform actions such as stirring, cleaning and the like.

In the embodiment shown, a connecting piece 18 for supporting and fixing the lower powder opening 10 is arranged around the lower powder opening 10, the connecting piece 18 is fixedly connected to the mounting bracket, and the lower powder opening 10 is mounted on the connecting piece 18. The periphery of the connecting piece 18 is provided with side plates 20 protruding upwards, a sliding chute 22 is enclosed between the side plates 20, the baffle 16 is slidably arranged in the sliding chute 22, and one side of the sliding chute 22 facing the baffle 16 is provided with a chute inlet 24 for the baffle 16 to slide in.

The lower powder port sealing mechanism further comprises a support member 26 and a powder storage box 28, wherein the support member 26 is arranged between the powder bin door 14 and the connecting member 18, is connected and fixed to the mounting bracket, and is used for supporting the powder storage box 28 and the baffle plate 16. The powder storage box 28 is disposed on the bottom side of the baffle 16 for collecting powder accumulated at the baffle 16 and the powder outlet 10, for example, during powder outlet, milk powder may adhere to the connecting member 18, the powder outlet 10 and the baffle 16, and the adhered milk powder may be swept into the powder storage box 28 by a brush during cleaning.

The bezel 16 and the powder container 28 are removably mounted so that both the bezel 16 and the powder container 28 can be removed from the powder bin door 14 for cleaning.

In this embodiment, the powder storage box 28 is slidably disposed on the support 26. Specifically, the supporting member 26 includes a supporting plate 30 and supporting sidewalls 32 connected to two sides of the supporting plate 30, sliding rails 34 are respectively disposed on the supporting plate 30 near the two supporting sidewalls 32, and the height of one end of the sliding rail 34 near the powder bin door 14 is gradually reduced to form an inclined ramp, so as to facilitate the sliding installation of the powder storage box 28 on the supporting member 26. The powder storage box 28 comprises a powder storage base 36 and powder storage side walls 38 connected to two sides of the powder storage base 36, one side of the powder storage base 36 close to the powder bin door 14 is downwards concave to form a powder storage space 40, and two sides of the bottom of the powder storage box 28 are respectively supported on the two slide rails 34.

In order to further enhance the stability of the powder container 28, in the illustrated embodiment, a groove is respectively disposed on the inner side walls of the two supporting side walls 32 of the supporting member 26 at symmetrical positions, a fastening member 44 is disposed in the groove, one end of the fastening member 44 is fixed on the inner side wall of the groove and has a protruding portion protruding from the supporting side wall 32, and the fastening member 44 can swing within a certain range under the action of an external force. Correspondingly, the outer side walls of the two powder storing side walls 38 are provided with locking grooves 46 at corresponding positions for cooperating with the locking pieces 44, respectively. The boss and the catch 46 each have rounded walls. During the sliding installation of the powder storage box 28 on the slide rail 34 to the support 26, the powder storage box 28 is pushed inward, the outer wall surface of the powder storage side wall 38 presses the clamping member 44 to make it shift toward the groove, and when the powder storage box reaches a certain position, the protruding part of the clamping member 44 is clamped in the clamping groove 46 to clamp the powder storage box 28 on the support 26. In the process of sliding the powder container 28 out of the support 26 from the slide rail 34, the powder container 28 is pulled outward, and the inner wall surface of the engaging groove 46 presses the projection of the engaging piece 44 to be biased inward of the groove, so that the projection slides out of the engaging groove 46. In the illustrated embodiment, the bottom of powder storage base 36 near one end of powder door 14 is provided with a tab 48 to facilitate the user in pulling powder storage container 28.

In the illustrated embodiment, a powder scraping member 50 is disposed above the baffle 16, and the powder scraping member 50 is fixedly attached to the mounting bracket. The bottom of the scraping member 50 contacts the top surface of the baffle 16 such that the scraping member 50 scrapes off powder accumulated on the top surface of the baffle 16 when the baffle 16 moves between the first position and the second position.

The shutter 16 is slidably disposed on the powder storage box 28. In this embodiment, the baffle 16 includes a blocking portion 52 and a driving connecting portion 54 integrally connected, wherein the blocking portion 52 is used for blocking and sealing the lower powder outlet 10, and the driving connecting portion 54 is provided with a driving hole 56. When the baffle 16 is installed, the driving connecting part 54 of the baffle 16 slides along the two sides of the top surface of the foundation plate 36 until the end of the blocking part 52 close to the lower powder opening 10 slides into the chute 22 from the chute inlet 24 and is supported on the connecting part 18, and the driving connecting part 54 is supported on the foundation plate 36. When the baffle 16 is removed, the baffle 36 is pulled outwards.

A synchronous motor 42 is coupled to the flapper 16, the synchronous motor 42 being adapted to cooperate with the drive aperture 56 to drive the flapper 16 between the first position and the second position. More specifically, the synchronous motor 42 includes a motor main body 58, a base 60, a first microswitch 62 and a second microswitch 64, and the motor main body 58, the first microswitch 62 and the second microswitch 64 are electrically connected to the circuit board and the control center of the milk machine. The motor body 58 has a rotating shaft 66 extending out of the bottom of the motor body 58, the base 60 includes a seat plate 68, a driving rod 70 disposed at the center of the top surface of the seat plate 68, and a driving block 72 protruding from the outer edge of the bottom surface of the seat plate 68, and the rotating shaft 66 is drivingly connected to the driving rod 70 through a bolt 74. The drive block 72 is inserted into the drive aperture 56 to drivingly connect the synchronous motor 42 to the flapper 16. The driving rod 70 is sleeved with a cam 76, the cam 76 is provided with a protrusion 78 protruding towards one side, the first microswitch 62 and the second microswitch 64 are respectively arranged at two symmetrical sides of the cam 76, and the first microswitch 62 and the second microswitch 64 are respectively provided with a protruding touch button 80 matched with the protrusion 78.

When the motor body 58 is operated to drive the rotation shaft 66 to rotate, the rotation shaft 66 drives the driving rod 70 to rotate so as to rotate the seat plate 68 and the driving block 72, and the driving block 72 rotates along the circumferential direction to drive the baffle 16 to rotate between the first position and the second position as the driving block 72 is inserted into the driving hole 56. At the same time, rotation of the drive lever 70 rotates the cam 76, and the cam 76 interacts with the two microswitch touch buttons 80 during rotation, such as by pressing the touch buttons 80 to activate the corresponding microswitch. The control panel of the milk making machine is provided with a control button which is used for controlling the synchronous motor 42 to operate so as to control the opening and closing of the powder outlet 10. The first microswitch 62 corresponds to the open state of the lower powder opening 10, and the second microswitch 62 corresponds to the closed state of the lower powder opening 10. When the control button is pressed, the synchronous motor 42 operates to enable the protrusion 78 to abut against the touch button 80 of the first microswitch 62, so that the first microswitch 62 is triggered, which indicates that the baffle 16 has moved to the first position at the moment, the powder outlet 10 is in an open state, and the synchronous motor 42 stops operating; when the control button is pressed again, the synchronous motor 42 operates again, so that the protrusion 78 abuts against the touch button 80 of the second microswitch 64, thereby triggering the second microswitch 64, which indicates that the baffle 16 has moved to the second position and the lower powder outlet 10 is in the closed state, and the synchronous motor 42 stops operating.

When the synchronous motor 42 drives the baffle 16 to move from the first position to the second position, the blocking part 52 slides along the chute 22 until the lower powder opening 10 is completely blocked and sealed.

The powder outlet sealing mechanism further comprises a third microswitch 81, and the third microswitch 81 is electrically connected with the circuit board of the milk preparing machine and the control center, so that the third microswitch 81 can transmit signals to the control center. The third microswitch 81 is used for cooperating with the baffle 16 to detect the on-off state of the lower powder opening, namely, whether the lower powder opening is in an open state or a closed state. When the powder outlet is detected to be in an open state, the stirring bin is in a non-operational state, and actions such as stirring, heating and the like cannot be performed; when the powder outlet is detected to be in a closed state, the stirring bin is in an operable state, and stirring, heating and other actions can be performed.

In the embodiment shown, a third microswitch 81 is provided between the support member 26 and the connecting member 18 on the side outside the chute entrance 24, the third microswitch 81 being connected fixed to the mounting bracket. The third microswitch 81 is provided with a touch button 83, the touch button 83 is arranged corresponding to the baffle 16 in the horizontal direction, more specifically, the touch button 83 is arranged corresponding to the inner side wall of the driving connecting part 54 in the horizontal direction, when the baffle 16 moves to the second position, the inner side wall of the driving connecting part 54 butts against the touch button 83 to trigger the third microswitch 81 to start, at this time, the powder outlet is indicated to be in a closed state, and meanwhile, the third microswitch 81 transmits a signal for closing the powder outlet to the control center; when the baffle 16 leaves the second position, the connecting part 54 is driven to be away from the touch button 83 to release the trigger state, the third microswitch 81 is closed, the opening state of the powder outlet is indicated at the moment, and meanwhile, the third microswitch 81 transmits a signal of opening the powder outlet to the control center.

The side wall 12 of the machine has an opening 82, and the bin door 14 is removably mounted in the opening 82, such that the door 16 and the powder container 28 can be removed from the opening 82 for cleaning or the like. In the illustrated embodiment, a latch 84 is disposed on the inner side surface of the top of the opening 82, and correspondingly, a latch pin 86 for latching with the latch 84 is disposed on the top of the inner side surface of the powder chamber door 14, for example, the latch 84 has a latch hole, and the latch pin 86 is latched into the latch hole and abuts against the inner wall surface of the sidewall 12 to realize latching. The bottom of the opening 82 is provided with a claw structure 88, correspondingly, the bottom of the inner side surface of the powder bin door 14 is provided with a lock pin 90 for locking and matching with the claw structure 88, and the outer side surface of the powder bin door 14 is provided with a button 92 corresponding to the lock pin 90, so that a user can realize locking or unlocking of the lock pin 90 by the claw structure by pressing the button 92, and thus, the powder bin door 14 can be detached and installed. The specific structure and locking and matching manner of the above-mentioned claw structure and lock pin are prior art, and are not described herein again.

In the illustrated embodiment, the powder bin door 14 is provided with fasteners 94 on each side, and when the powder bin door 14 is installed into the opening 82, the fasteners 94 abut against the outer side of the powder bin 28 for securing the powder bin 28.

It should be understood that the above-described arrangement of the latch 84, the latch pin 86, the catch structure 88 and the lock pin 90 to detachably mount the powder bin door 14 to the opening 82 is only one embodiment of the present invention, and in other embodiments, other manners and structures may be adopted to detachably mount the powder bin door 14 to the opening 82, and the present invention is not limited thereto.

It should also be understood that, in the present embodiment, the synchronous motor 42 is used to drive the baffle 16 and the driving block 72 to move in cooperation with the driving hole 56, and in other embodiments, other devices may be used to drive the baffle 16 to move, or other means may be used to drive the baffle 16 to move in cooperation with the baffle 16, which is not limited by the present invention.

In summary, the present invention provides a sealing mechanism for a powder outlet, which can seal the powder outlet and can be disassembled for cleaning, and a milk machine with the sealing mechanism for the powder outlet. An opening is arranged on a side wall of the milk making machine corresponding to the powder outlet, a powder bin door is detachably arranged in the opening, and a baffle plate and a powder storage box are arranged between the powder bin door and the powder outlet. The baffle can slide between a first position and a second position, and when the baffle is positioned at the first position, the powder outlet is in an open state; when the powder outlet is located at the second position, the baffle blocks and seals the powder outlet. The powder storage box is used for collecting accumulated powder on the powder outlet and the baffle, and the baffle and the powder storage box are designed into a detachable installation structure, so that the baffle and the powder storage box can be directly detached from the opening to be cleaned or replaced, the detaching and installing actions are simple and convenient, and convenience is brought to a user. A synchronous motor is connected to the baffle plate, and the baffle plate is controlled to move between the first position and the second position by the synchronous motor.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A lower powder opening sealing mechanism is used for a powder brewing device, the powder brewing device comprises a powder bin for storing powder, a stirring bin for stirring and a lower powder opening arranged between a powder outlet of the powder bin and an inlet of the stirring bin, and is characterized in that the lower powder opening sealing mechanism comprises a powder bin door which is detachably arranged on one side face of the powder brewing device corresponding to the lower powder opening and a baffle plate arranged in the powder brewing device, the baffle plate can be driven to move between a first position and a second position, when the baffle plate is positioned at the first position, the lower powder opening is in an open state, and when the baffle plate is positioned at the second position, the lower powder opening is sealed and plugged by the baffle plate.

2. The lower nozzle sealing mechanism according to claim 1, wherein the shutter is removably mounted so that the shutter can be removed from the powder hopper door for cleaning.

3. The bottom nozzle sealing mechanism of claim 2, further comprising a powder storage box disposed on a bottom side of the baffle for collecting powder accumulated at the baffle and the bottom nozzle, wherein the powder storage box is detachably mounted so that the powder storage box can be removed from the powder bin door for cleaning.

4. The lower powder opening sealing mechanism according to claim 3, wherein a connecting member for supporting and fixing the lower powder opening is arranged around the lower powder opening, the connecting member has side plates protruding upwards at the periphery, a sliding groove is formed between the side plates in a surrounding manner, the baffle is slidably arranged in the sliding groove, a supporting member is arranged between the powder bin door and the lower powder opening, the powder storage box is slidably arranged on the supporting member, and the baffle is slidably arranged on the powder storage box.

5. The lower nozzle sealing mechanism of claim 1, wherein a synchronous motor is connected to the baffle, the synchronous motor is used for driving the baffle to move between the first position and the second position, the synchronous motor comprises a motor main body, a base, a first microswitch and a second microswitch, wherein the motor main body is provided with a rotating shaft extending out of the bottom of the motor main body, the base comprises a base plate, a driving rod arranged on the top surface of the base plate and a driving block convexly arranged on the outer edge of the bottom surface of the base plate, the rotating shaft is in driving connection with the driving rod, the driving block is in driving connection with the baffle, the driving rod is provided with a cam, the cam is provided with a bulge protruding towards one side, and the first microswitch and the second microswitch are respectively arranged on two sides of the cam and respectively provided with a touch button which is used for being matched with the bulge and convexly arranged.

6. The powder outlet sealing mechanism according to claim 5, wherein the baffle comprises a blocking portion and a driving connecting portion, the blocking portion is used for blocking and sealing the powder outlet, and the driving connecting portion is provided with a driving hole which is used for being in driving fit with the driving block.

7. The lower powder port sealing mechanism of claim 1, further comprising a third micro switch configured to cooperate with the shutter to detect a switch state of the lower powder port, wherein the shutter triggers the third micro switch to activate when the shutter moves to the second position, and wherein the shutter triggers the third micro switch to deactivate when the shutter leaves the second position.

8. The bottom nozzle sealing mechanism of claim 1, wherein a scraper is disposed above the baffle for scraping off powder deposits on the top surface of the baffle as the baffle moves between the first and second positions.

9. The bottom powder outlet sealing mechanism of claim 1, wherein an opening is formed in a side wall of the powder brewing device, the powder bin door is detachably mounted in the opening, a fastening member is arranged at the top of the opening, a claw absorbing structure is arranged at the bottom of the opening, a fastening pin for cooperating with the fastening member is arranged at the top of the inner side surface of the powder bin door, a lock pin for cooperating with the claw absorbing structure is arranged at the bottom of the inner side surface of the powder bin door, and a button is arranged on the outer side surface of the powder bin door corresponding to the lock pin, so that the lock pin can be locked or unlocked by the claw absorbing structure by pressing the button.

10. A milk machine, characterized in that it comprises a powder outlet sealing mechanism according to any one of claims 1-9.

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