Milk frothing equipment

Abstract

The invention discloses milk frothing equipment, and particularly relates to the technical field of milk frothing machines, the milk frothing equipment comprises a cabinet, a conveying pipe and a supporting block, the conveying pipe is fixedly communicated with the upper surface of the cabinet, the supporting block is fixedly mounted on one side of the outer wall of the conveying pipe, and a positioning sealing mechanism is mounted on the upper surface of the supporting block; the positioning sealing mechanism comprises a positioning ring fixedly mounted on the upper surface of the supporting block, the upper surface of the positioning ring is slidably connected with a limiting ring, and one side of the outer wall of the limiting ring is fixedly connected with a supporting column; a connecting strip is fixedly installed at one end of the supporting column. The connecting strip is pushed to move upwards through the positioning and sealing mechanism and the electric cylinder until the upper surface of the induction block is attached to the sensing end of the bottom end of the proximity sensor, the annular air cushion can seal the edge of the containing cup, milk foam is prevented from flowing on the outer wall of the containing cup, the outer wall of the containing cup does not need to be cleaned, and a table top does not need to be cleaned. More time and labor are saved in use, and the anti-sputtering effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of milk frothing machines, and more particularly to a milk frothing device. Background Art

[0002] The milk frother can whip milk into fine and dense milk foam, which is an indispensable step in making coffee drinks such as cappuccino, latte, matcha latte, etc. In particular, covering the coffee drinks with a thick layer of milk foam can increase the layering of the drinks and give customers a richer experience when tasting them.

[0003] In the existing public documents, patent announcement number CN217852446U discloses a milk frothing machine, which mainly uses the end of the steam plug to be located below the liquid surface of the milk. At this time, steam can be output through the end of the steam plug to froth the milk. When the steam plug is located at the second position relative to the housing, the steam plug is completely lifted off the liquid surface of the milk. The milk in the milk tank can be automatically frothed, and the frothing efficiency is higher. The milk frothing machine has the following defects.

[0004] When the milk frothing machine is frothing milk into fine milk foam, it needs to spray the milk foam into the receiving cup through the steam insert. The milk foam will be injected during the insertion process. During the injection process, due to the presence of more air bubbles in the milk foam, the milk foam will easily splash around. After splashing, the milk foam will flow on the outer wall of the receiving cup and pollute the countertop. Not only the outer wall of the receiving cup but also the countertop needs to be cleaned, which is more time-consuming and labor-intensive, and the anti-splashing effect is poor. Therefore, a milk frothing equipment is needed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a milk frothing device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a milk frothing device, comprising a cabinet, a delivery pipe and a support block, wherein the delivery pipe is fixedly connected to the upper surface of the cabinet, the support block is fixedly installed on one side of the outer wall of the delivery pipe, and a positioning sealing mechanism is installed on the upper surface of the support block; the positioning sealing mechanism comprises a positioning ring fixedly installed on the upper surface of the support block, and the upper surface of the positioning ring is slidably connected to a limiting ring, and one side of the outer wall of the limiting ring is fixedly connected to a pillar; a connecting strip is fixedly installed on one end of the pillar, an electric cylinder is fixedly installed on the inner wall of the connecting strip and near the top position thereof, and an annular air cushion is bonded to the inner wall of the limiting ring, and the inside of the annular air cushion is fixedly connected to a boosting pipe; one side of the outer wall of the boosting pipe is fixedly connected to a pressure transmitter, and one side of the pressure transmitter is provided with a sensing block fixedly connected to the limiting ring; A shoveling and collecting mechanism is installed on the other side of the outer wall of the limiting ring; a docking anti-expansion component is connected to one side of the outer wall of the conveying pipe and close to its top end.

[0007] Preferably, the limiting ring is fixedly connected to the boost pipe, and the cross-sectional shape of the limiting ring is a circular ring. A sleeve plate is slidably connected to one side of the connecting strip, and the sleeve plate is fixedly connected to the delivery pipe, and a proximity sensor is fixedly installed inside the sleeve plate; the proximity sensor is used to sense the moving distance of the sensing block. A holding cup is slidably connected to the inside of the annular air cushion; a support frame is fixedly installed between the electric cylinder and the support block, and the support frame and the support block are both made of stainless steel. A main engine is fixedly installed on the other side of the outer wall of the delivery pipe, and one end of the boost pipe is fixedly connected to a boost air pump; an electric valve is threadedly connected to the output end of the boost air pump, and a reinforcement strip is fixedly installed on the bottom end of the outer surface of the boost air pump, and the reinforcement strip is fixedly connected to the main engine. A boost gas cylinder is fixedly installed on the bottom end of the inner wall of the cabinet, and an electromagnetic valve is fixedly connected to the output end of the boost gas cylinder; A connected bubble tube is fixedly installed at the output end of the electromagnetic valve, and a receiving box fixedly connected to the cabinet is installed on one side of the bubble tube, a pump is fixedly installed at the output end of the receiving box, and the output end of the pump is fixedly connected to a collecting box; the collecting box is connected to the bubble tube, and the top of the bubble tube is fixedly connected to a guide pipe, which passes through the cabinet and is fixedly connected to the delivery pipe; resistance heating rods are provided above and below the guide pipe, and the resistance heating rod is fixedly connected to the collecting box, and the cabinet is fixedly connected to another resistance heating rod.

[0008] In this technical solution, the electric cylinder pushes the connecting strip upward, the connecting strip drives the pillar upward, and the limit ring slides and separates on the positioning ring. The limit ring also drives the boost pipe upward, and the limit ring can drive the sensing block upward, the sensing block approaches the lower surface of the proximity sensor, the sliding frame drives the screw upward, and the screw drives the threaded sleeve to move upward. The pressure sensor drives the pressure plate to move upward, and the pressure plate drives the shoveling ring plate to slide upward along the outer wall of the holding cup. When the sensing block moves upward and contacts the lower surface of the proximity sensor, the proximity sensor senses and the main engine can turn off the electric cylinder. The air pressurized by the booster pump is transported to the boost pipe, and then poured into the annular air cushion by the boost pipe. The annular air cushion is pressurized to achieve extrusion operation. The annular air cushion is extruded at the edge line of the outer wall at the top of the holding cup.

[0009] Preferably, the shoveling collection mechanism includes a sliding frame fixedly mounted on the other side of the outer wall of the limit ring; the inner wall of the sliding frame is threadedly connected with a screw, and a driving motor is fixedly mounted on the bottom end of the sliding frame, the driving motor is used to drive the screw to rotate, and the outer wall of the screw is threadedly connected with a threaded sleeve; the threaded sleeve is slidably connected to the sliding frame, and a pressure sensor is fixedly mounted on the inner wall of the threaded sleeve near its top position; the sensing end of the pressure sensor is fixedly connected with a pressure plate, and a shoveling ring plate is welded to the bottom end of the pressure plate, and the outer wall diameter of the shoveling ring plate is smaller than the inner wall diameter of the annular air cushion. The screw is fixedly connected to the output end of the driving motor, and the inner wall of the sliding frame and the outer wall of the threaded sleeve are both set as smooth surfaces.

[0010] In this technical solution, the driving motor drives the screw to rotate, and the screw drives the threaded sleeve to move downward under the action of the thread transmission force. The threaded sleeve drives the pressure sensor to move downward, and the pressure plate drives the shoveling ring plate to move downward. The pressure plate moves downward according to the specified pressure, and the shoveling ring plate moves downward along the outer wall of the receiving cup. Under the action of gravity and the shoveling force of the shoveling ring plate, the milk foam can be shoveled and flowed into the receiving cup to avoid wasting milk foam.

[0011] Preferably, the docking anti-expansion component includes a faucet valve, a lower discharge pipe and a distance sensor; the faucet valve is fixedly connected to one side of the outer wall of the delivery pipe and close to its top position, the lower discharge pipe is fixedly connected to the lower surface of the faucet valve, and the distance sensor is fixedly installed on one side of the outer wall of the lower discharge pipe; the docking anti-expansion component also includes a support block, a stepper motor, a rotating block, a docking bucket and dispersion blades; the support block is located on one side of the lower discharge pipe and fixedly connected to the faucet valve, the stepper motor is fixedly installed at the bottom of the support block, and the rotating block is fixedly located on the outer wall of the stepper motor output end, and the stepper motor is used to drive the rotating block to rotate; a docking bucket is fixedly installed at the bottom end of the rotating block, and dispersion blades are fixedly connected to the inner wall of the docking bucket, the inner wall diameter of the docking bucket is larger than the inner wall diameter of the lower discharge pipe, the docking bucket and the dispersion blades are welded, and the inner wall of the docking bucket is set to a smooth surface.

[0012] In this technical solution, the delivery pipe supports the faucet valve, and the support block provides stable support force for the stepper motor. The stepper motor drives the rotating block to rotate counterclockwise, and the rotating block drives the docking bucket to rotate counterclockwise. The right end of the docking bucket rotates counterclockwise and is located on the lower surface of the distance sensor. When the distance sensor senses the position of the docking bucket, the stepper motor is turned off by the main engine.

[0013] Technical effects and advantages of the present invention: 1. The present invention uses a positioning sealing mechanism, and the electric cylinder pushes the connecting strip upward, and the induction block approaches the proximity sensor until the upper surface of the induction block fits on the sensing end at the bottom of the proximity sensor. The limiting ring drives the annular air cushion to move upward to the edge line of the outer wall of the top end of the holding cup, and the air pressurized by the booster air pump is transported to the booster pipe and poured into the annular air cushion by the booster pipe. The annular air cushion is squeezed at the edge line of the outer wall of the top end of the holding cup to achieve an extrusion and sealing operation on the outer wall of the holding cup. During the splashing of milk foam, the protective collection operation can be achieved through the inner wall of the annular air cushion. At the same time, the annular air cushion can seal the edge of the holding cup to prevent milk foam from flowing on the outer wall of the holding cup. There is no need to clean the outer wall of the holding cup or the countertop, which saves time and effort in use and has a better anti-splashing effect.

[0014] 2. The present invention utilizes a shoveling and collecting mechanism. A driving motor drives the screw to rotate. The screw rotates inside the sliding frame. The threaded sleeve moves downward under the action of the thread transmission force. The pressure sensor drives the pressure plate to move downward. The pressure plate drives the shoveling ring plate to move downward. The shoveling ring plate moves downward along the outer wall of the receiving cup to shovel the milk foam to flow into the receiving cup, thereby preventing the milk foam from splashing on the inner wall of the receiving cup to cause waste of milk foam and contamination caused by milk foam flow when the receiving cup is taken out. There is no need to clean the outer wall of the receiving cup or the countertop, which saves time and effort to use and has a better anti-splashing effect.

[0015] 3. The present invention adopts a docking anti-expansion component, the delivery pipe supports the faucet valve, the stepper motor drives the rotating block to rotate counterclockwise, the rotating block drives the docking bucket to rotate counterclockwise, the right end of the docking bucket rotates counterclockwise and is located at the lower surface of the distance sensor. After the distance sensor senses the position of the docking bucket, the stepper motor is turned off by the host, so that the delicate milk foam enters the docking bucket through the lower discharge pipe, and the dispersion blades inside the docking bucket are dispersed and discharged, reducing the range of milk foam splashing outward, and the anti-splashing effect is better.

[0016] 4. When the present invention is in use, the host screen and the tap valve button are electronically touch-controlled, which can intuitively control parameters, preset and quickly adjust time, adjust the amount of pressurized air entering the booster cylinder through the electromagnetic valve, and then deliver it to the bubble tube through the electromagnetic valve, and the bubble tube is collected in the collection box. Allow air and milk to enter evenly together, so that the two can be quickly integrated, so as to achieve the purpose of expanding volume and foaming, and deliver them to the collection box after foaming, and the collection box is delivered to the guide tube, and heat exchange is achieved through the two resistance heating rods on the guide tube. Unconventional steam heating, the amount of water vapor injected into the milk foam is almost, the milk foam tastes denser, better highlights the sweetness in the milk, and the fusion with coffee will be more thorough, bringing a better milk coffee flavor, the heated milk foam can enter the delivery tube, and enter the tap valve through the delivery tube, and the milk foam injection operation can be realized.

[0017] According to the interaction of the above multiple effects, the annular air cushion is first squeezed at the edge line of the outer wall of the top of the receiving cup, and then the fine milk foam enters the docking bucket through the lower discharge pipe, and the fine milk foam is dispersed and discharged along the dispersion blades inside the docking bucket, and finally the shoveling ring plate moves down along the outer wall of the receiving cup to make the milk foam flow into the receiving cup. In summary, the milk foam is prevented from flowing on the outer wall of the receiving cup, and there is no need to clean the outer wall of the receiving cup or the countertop, which saves time and effort in use, and has a better effect of preventing milk foam from splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front plan structure of the milk frothing device of the present invention.

[0019] Figure 2 It is a schematic diagram of the rear view structure of the connection between the delivery pipe and the support block of the present invention.

[0020] Figure 3 It is a schematic diagram of the partial structure of the connection between the support block and the delivery pipe of the present invention.

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0022] Figure 5 It is a schematic diagram of the partial structure of the connection between the boost pipe and the boost air pump of the present invention.

[0023] Figure 6 It is a schematic diagram of the local structure of the vertical section of the connection between the annular air cushion and the boost pipe of the present invention.

[0024] Figure 7 It is a schematic diagram of the main structure of the connection between the delivery pipe and the support block of the present invention.

[0025] Figure 8 It is a schematic diagram of the partial structure of the connection between the threaded sleeve plate and the screw rod of the present invention.

[0026] Fig. 9 For the present invention Figure 7 Enlarged structural diagram at B in the middle.

[0027] Fig.10 It is a schematic diagram of the partial structure of the docking anti-expansion component of the present invention from a front view.

[0028] The accompanying drawings are marked as follows: 1, cabinet; 2, delivery pipe; 3, support block; 4, positioning ring; 5, limit ring; 6, pillar; 7, connecting strip; 8, electric cylinder; 9, annular air cushion; 10, booster pipe; 11, pressure transmitter; 12, sensor block; 13, sleeve plate; 14, proximity sensor; 15, holding cup; 16, support frame; 17, host; 18, booster air pump; 19, electric valve; 20, reinforcement strip; 21, booster gas cylinder; 22, electromagnetic valve ; 23. Bubble tube; 24. Container box; 25. Pump; 26. Collection box; 27. Guide pipe; 28. Resistance heating rod; 29. ​​Sliding frame; 30. Screw; 31. Drive motor; 32. Threaded sleeve; 33. Pressure sensor; 34. Pressure plate; 35. Shovel ring plate; 36. Faucet valve; 37. Downpipe; 38. Distance sensor; 39. Support block; 40. Stepper motor; 41. Rotating block; 42. Docking bucket; 43. Dispersion blades. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1-10 A milk frothing device is shown, which is provided with a positioning sealing mechanism, a shoveling and collecting mechanism, and a docking anti-expansion component. The settings of each mechanism and component can prevent milk foam from flowing on the outer wall of the receiving cup 15. There is no need to clean the outer wall of the receiving cup or the countertop, which saves time and effort in use and has a better milk foam anti-splashing effect. The specific structural settings of each mechanism and component are as follows.

[0031] In this embodiment, as shown in the attached Figure 1-6 As shown, the delivery pipe 2 is fixedly connected to the upper surface of the cabinet 1, the support block 3 is fixedly installed on one side of the outer wall of the delivery pipe 2, and a positioning sealing mechanism is installed on the upper surface of the support block 3; the positioning sealing mechanism includes a positioning ring 4 fixedly installed on the upper surface of the support block 3, and the upper surface of the positioning ring 4 is slidably connected to a limiting ring 5, and one side of the outer wall of the limiting ring 5 is fixedly connected to a pillar 6; a connecting strip 7 is fixedly installed on one end of the pillar 6, an electric cylinder 8 is fixedly installed on the inner wall of the connecting strip 7 and near its top position, and an annular air cushion 9 is bonded to the inner wall of the limiting ring 5, and the inside of the annular air cushion 9 is fixedly connected to a boost pipe 10; one side of the outer wall of the boost pipe 10 is fixedly connected to a pressure transmitter 11, and one side of the pressure transmitter 11 is provided with a sensing block 12 fixedly connected to the limiting ring 5; a shoveling and collecting mechanism is installed on the other side of the outer wall of the limiting ring 5; a docking anti-expansion component is connected to one side of the outer wall of the delivery pipe 2 and near its top position.

[0032] In this embodiment, as shown in the attached Figure 2-5 As shown, a sleeve plate 13 is slidably connected to one side of the connecting strip 7, and the sleeve plate 13 is fixedly connected to the conveying pipe 2, and a proximity sensor 14 is fixedly installed inside the sleeve plate 13; the proximity sensor 14 is used to sense the moving distance of the sensing block 12, so that the conveying pipe 2 supports the sleeve plate 13, and the sleeve plate 13 provides a stable supporting force for the proximity sensor 14. When the sensing block 12 moves up and contacts the lower surface position of the proximity sensor 14, the proximity sensor 14 senses, and the host 17 can turn off the electric cylinder 8. A holding cup 15 is slidably connected inside the annular air cushion 9; a support frame 16 is fixedly installed between the electric cylinder 8 and the support block 3, and the support frame 16 and the support block 3 are both made of stainless steel, so that the holding cup 15 can be inserted into the interior of the positioning ring 4, and the upper surface of the holding cup 15 is supported by the support block 3, and the support block 3 supports the support frame 16, and the support frame 16 provides a stable supporting force for the electric cylinder 8.

[0033] A main unit 17 is fixedly installed on the other side of the outer wall of the delivery pipe 2, and one end of the boosting pipe 10 is fixedly connected to a boosting air pump 18; an output end of the boosting air pump 18 is threadedly connected to an electric valve 19, and a reinforcement strip 20 is fixedly installed on the bottom end of the outer surface of the boosting air pump 18, and the reinforcement strip 20 is fixedly connected to the main unit 17, so that the main unit 17 can start the boosting air pump 18, the main unit 17 opens the electric valve 19, and the main unit 17 supports the reinforcement strip 20. The reinforcement strip 20 provides a stable supporting force for the boosting air pump 18, so that the air pressurized by the boosting air pump 18 is delivered to the boosting pipe 10, and is poured into the annular air cushion 9 by the boosting pipe 10, so as to realize the boosting and delivery operation inside the annular air cushion 9.

[0034] In this embodiment, as shown in the attached Figure 1 As shown, a pressurized gas cylinder 21 is fixedly installed at the bottom end of the inner wall of the cabinet 1, and the output end of the pressurized gas cylinder 21 is fixedly connected to an electromagnetic valve 22; a bubble tube 23 is fixedly installed at the output end of the electromagnetic valve 22, and a receiving box 24 fixedly connected to the cabinet 1 is installed on one side of the bubble tube 23, a pump 25 is fixedly installed at the output end of the receiving box 24, and a collection box 26 is fixedly connected to the output end of the pump 25; the collection box 26 is connected to the bubble tube 23, and the top of the bubble tube 23 is fixedly connected to a guide tube 27, which passes through the cabinet 1 and is fixedly connected to the delivery pipe 2; resistance heating rods 28 are provided above and below the guide tube 27, and the resistance heating rod 28 is fixedly connected to the collection box 26, and the cabinet 1 is fixedly connected to another resistance heating rod 28.

[0035] In this embodiment, as shown in the attached Figure 6-9As shown, the shoveling collection mechanism includes a sliding frame 29 fixedly mounted on the other side of the outer wall of the limit ring 5; the inner wall of the sliding frame 29 is threadedly connected with a screw 30, and the bottom end of the sliding frame 29 is fixedly mounted with a driving motor 31, the driving motor 31 is used to drive the screw 30 to rotate, and the outer wall of the screw 30 is threadedly connected with a threaded sleeve 32; the threaded sleeve 32 is slidably connected to the sliding frame 29, and a pressure sensor 33 is fixedly mounted on the inner wall of the threaded sleeve 32 and near its top position; the sensing end of the pressure sensor 33 is fixedly connected with a pressure plate 34, and the bottom end of the pressure plate 34 is welded with a shoveling ring plate 35, and the outer wall diameter of the shoveling ring plate 35 is smaller than the inner wall diameter of the annular air cushion 9. The screw 30 is fixedly connected to the output end of the driving motor 31, and the inner wall of the sliding frame 29 and the outer wall of the threaded sleeve 32 are both set as smooth surfaces.

[0036] In this embodiment, as shown in the attached Fig.10 As shown, the docking anti-expansion component includes a faucet valve 36, a lower discharge pipe 37 and a distance sensor 38; the faucet valve 36 is fixedly connected to one side of the outer wall of the conveying pipe 2 and close to its top position, the lower discharge pipe 37 is fixedly connected to the lower surface of the faucet valve 36, and the distance sensor 38 is fixedly installed on one side of the outer wall of the lower discharge pipe 37; the docking anti-expansion component also includes a support block 39, a stepper motor 40, a rotating block 41, a docking bucket 42 and a dispersion blade 43; the support block 39 is located on one side of the lower discharge pipe 37 and is fixedly connected to the faucet valve 36, the stepper motor 40 is fixedly installed at the bottom of the support block 39, and the rotating block 41 is fixedly located on the outer wall of the output end of the stepper motor 40, and the stepper motor 40 is used to drive the rotating block 41 to rotate; a docking bucket 42 is fixedly installed at the bottom end of the rotating block 41, and a dispersion blade 43 is fixedly connected to the inner wall of the docking bucket 42, and the inner wall diameter of the docking bucket 42 is larger than the inner wall diameter of the lower discharge pipe 37. The docking bucket 42 and the dispersion blades 43 are welded, and the inner wall of the docking bucket 42 is set to be a smooth surface.

[0037] The working principle of the milk frothing device of the present invention is as follows: Step 1: When positioning and sealing, insert the container cup 15 into the positioning ring 4, support the upper surface of the container cup 15 through the support block 3, and at the same time, the main machine 17 starts the electric cylinder 8, the electric cylinder 8 pushes the connecting strip 7 upward, the connecting strip 7 drives the pillar 6 upward, the pillar 6 drives the limit ring 5 upward, and the limit ring 5 slides and separates on the positioning ring 4. The limit ring 5 drives the annular air cushion 9 upward, the limit ring 5 drives the boost pipe 10 upward at the same time, the boost pipe 10 drives the pressure transmitter 11 upward, and the limit ring 5 can drive the induction block 12 upward, the induction block 12 approaches the lower surface of the proximity sensor 14, and the delivery pipe 2 supports the sleeve plate 13, and the sleeve plate 13 provides a stable support force for the proximity sensor 14.

[0038] At the same time, the limit ring 5 drives the sliding frame 29 to move upward, the sliding frame 29 drives the screw 30 to move upward, and the screw 30 drives the threaded sleeve 32 to move upward. The threaded sleeve 32 causes the pressure sensor 33 to move upward, the pressure sensor 33 drives the pressure plate 34 to move upward, and the pressure plate 34 drives the shoveling ring plate 35 to slide upward along the outer wall of the holding cup 15. When the sensing block 12 moves upward and contacts the lower surface of the proximity sensor 14, the host 17 can turn off the electric cylinder 8 through the proximity sensor 14 sensing, so that the upper surface of the sensing block 12 fits on the bottom sensing end of the proximity sensor 14, and the limit ring 5 drives the annular air cushion 9 to move upward to the edge line of the outer wall of the top of the holding cup 15.

[0039] At the same time, the host 17 starts the booster air pump 18, the host 17 opens the electric valve 19, the host 17 supports the reinforcement strip 20, and the reinforcement strip 20 provides a stable support force for the booster air pump 18, so that the air pressurized by the booster air pump 18 is transported to the booster pipe 10, and then poured into the annular air cushion 9 by the booster pipe 10, and the annular air cushion 9 is pressurized to achieve the extrusion operation. The annular air cushion 9 is squeezed at the edge line of the outer wall of the top end of the holding cup 15 to achieve the extrusion sealing operation.

[0040] Step 2, during docking and anti-expansion, the delivery pipe 2 supports the faucet valve 36, the faucet valve 36 supports the support block 39, the support block 39 provides a stable support force for the stepper motor 40, the stepper motor 40 drives the rotating block 41 to rotate counterclockwise, the rotating block 41 drives the docking bucket 42 to rotate counterclockwise, the docking bucket 42 drives the dispersion blades 43 to rotate counterclockwise, the right end of the docking bucket 42 rotates counterclockwise and is located at the lower surface of the distance sensor 38. When the distance sensor 38 senses the position of the docking bucket 42, the stepper motor 40 is turned off by the host 17.

[0041] Step 3. When frothing milk, the screen of the main unit 17 and the electronic touch screen of the faucet valve 36 can intuitively control the parameters, preset and quickly adjust the time, and the air filtered by the filter is pressurized and enters the booster gas cylinder 21. The amount of pressurized air entering the booster gas cylinder 21 is adjusted by the electromagnetic valve 22, and then transported to the bubble tube 23 through the electromagnetic valve 22, and the bubble tube 23 is collected in the collection box 26.

[0042] At the same time, the pump 25 can generate suction on the receiving box 24, so that the milk can be transported from the receiving box 24 to the collecting box 26, so that air and milk can enter evenly and merge quickly, thereby achieving the purpose of expanding volume and foaming. After foaming, it is transported to the collecting box 26, and the collecting box 26 is transported to the guide tube 27. Heat exchange is achieved through two resistance heating rods 28 on the guide tube 27. It is unconventional steam heating. The amount of water vapor injected into the milk foam is almost 0. The milk foam has a denser taste, better highlights the sweetness of the milk, and is more thoroughly integrated with the coffee, bringing a better milk coffee flavor. The heated milk foam can enter the delivery pipe 2 and enter the faucet valve 36 through the delivery pipe 2. The fine milk foam flows along the faucet valve 36 into the lower discharge pipe 37, and then into the docking bucket 42, where it is dispersed by the dispersing blades 43 inside the docking bucket 42. The dispersed milk foam can enter the receiving cup 15, reducing the amount of milk foam splashing. A smaller amount of splashing will contact the inner wall of the annular air cushion 9, and the annular air cushion 9 is used to seal and protect the receiving cup 15. Secondly, in the under-counter milk foam whipping system, the booster air pump 18 is under the bar and the milk faucet is on the cabinet 1, which can ensure that the cabinet 1 is clean and tidy and does not take up space. After the milk foam injection is completed, the motor 31 is driven by the main engine 17.

[0043] Step 4: When the milk is shoveled and gathered, the driving motor 31 drives the screw rod 30 to rotate, and the screw rod 30 rotates inside the sliding frame 29, and the screw rod 30 drives the threaded sleeve 32 to move downward under the action of the thread transmission force. The threaded sleeve 32 slides down along the inner wall of the sliding frame 29, and the threaded sleeve 32 drives the pressure sensor 33 to move downward, and the pressure sensor 33 drives the pressing plate 34 to move downward, and the pressing plate 34 drives the shoveling ring plate 35 to move downward. The pressure sensor 33 can sense the downward pressure, and the pressing plate 34 moves downward according to the specified pressure. The shoveling ring plate 35 moves downward along the outer wall of the holding cup 15 to shovel the milk foam flowing on the inner wall of the annular air cushion 9. Under the action of gravity and the shoveling force of the shoveling ring plate 35, the milk foam can be shoveled and flowed into the holding cup 15, so as to avoid the milk foam from splashing on the inner wall of the holding cup 15 and avoiding the waste of milk foam.

[0044] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A milk frothing device, comprising a cabinet (1), a delivery pipe (2) and a support block (3), wherein the delivery pipe (2) is fixedly connected to the upper surface of the cabinet (1), and the support block (3) is fixedly mounted on one side of the outer wall of the delivery pipe (2), characterized in that: A positioning sealing mechanism is installed on the upper surface of the support block (3); The positioning sealing mechanism comprises a positioning ring (4) fixedly mounted on the upper surface of the support block (3), and the upper surface of the positioning ring (4) is slidably connected to a limiting ring (5), and one side of the outer wall of the limiting ring (5) is fixedly connected to a support pillar (6); A connecting strip (7) is fixedly mounted on one end of the support (6); an electric cylinder (8) is fixedly mounted on the inner wall of the connecting strip (7) near its top end; an annular air cushion (9) is bonded to the inner wall of the limiting ring (5); and a boost pipe (10) is fixedly connected to the interior of the annular air cushion (9); One side of the outer wall of the boosting pipe (10) is fixedly connected to a pressure transmitter (11), and one side of the pressure transmitter (11) is provided with a sensing block (12) fixedly connected to a limit ring (5); A shoveling and collecting mechanism is installed on the other side of the outer wall of the limiting ring (5); A docking anti-expansion component is connected to one side of the outer wall of the delivery pipe (2) and close to the top end thereof.

2. The milk frothing device according to claim 1, characterized in that: The limiting ring (5) is fixedly connected to the boost pipe (10), and the cross-sectional shape of the limiting ring (5) is a circular ring.

3. The milk frothing device according to claim 1, characterized in that: A sleeve plate (13) is slidably connected to one side of the connecting strip (7), and the sleeve plate (13) is fixedly connected to the delivery pipe (2), and a proximity sensor (14) is fixedly installed inside the sleeve plate (13); The proximity sensor (14) is used to sense the moving distance of the sensing block (12).

4. The milk frothing device according to claim 1, characterized in that: The annular air cushion (9) is slidably connected to a containing cup (15); A support frame (16) is fixedly installed between the electric cylinder (8) and the support block (3), and the support frame (16) and the support block (3) are both made of stainless steel.

5. The milk frothing device according to claim 1, characterized in that: A main engine (17) is fixedly mounted on the other side of the outer wall of the delivery pipe (2), and one end of the boosting pipe (10) is fixedly connected to a boosting air pump (18); The output end of the booster air pump (18) is threadedly connected to an electric valve (19), and a reinforcement strip (20) is fixedly mounted on the bottom end of the outer surface of the booster air pump (18), and the reinforcement strip (20) is fixedly connected to the main unit (17).

6. The milk frothing device according to claim 1, characterized in that: A pressurized gas cylinder (21) is fixedly mounted on the bottom end of the inner wall of the cabinet (1), and an output end of the pressurized gas cylinder (21) is fixedly connected to an electromagnetic valve (22); The output end of the electromagnetic valve (22) is fixedly mounted with a connected bubble tube (23), and a receiving box (24) fixedly connected to the cabinet (1) is mounted on one side of the bubble tube (23); a pump (25) is fixedly mounted on the output end of the receiving box (24), and the output end of the pump (25) is fixedly connected to a collecting box (26); The collecting box (26) is connected to the bubble tube (23); the top end of the bubble tube (23) is fixedly connected to a flow guide tube (27); the flow guide tube (27) passes through the cabinet (1) and is fixedly connected to the delivery tube (2); Resistance heating rods (28) are provided above and below the flow guide tube (27), one of the resistance heating rods (28) is fixedly connected to the collection box (26), and the cabinet (1) is fixedly connected to another resistance heating rod (28).

7. The milk frothing device according to claim 1, characterized in that: The shoveling and collecting mechanism comprises a sliding frame (29) fixedly mounted on the other side of the outer wall of the limiting ring (5); The inner wall of the sliding frame (29) is threadedly connected to a screw rod (30), and a driving motor (31) is fixedly mounted on the bottom end of the sliding frame (29), the driving motor (31) is used to drive the screw rod (30) to rotate, and the outer wall of the screw rod (30) is threadedly connected to a threaded sleeve plate (32); The threaded sleeve (32) is slidably connected to the sliding frame (29), and a pressure sensor (33) is fixedly mounted on the inner wall of the threaded sleeve (32) near the top thereof; The sensing end of the pressure sensor (33) is fixedly connected to a pressure plate (34), and a shoveling ring plate (35) is welded to the bottom end of the pressure plate (34), wherein the outer wall diameter of the shoveling ring plate (35) is smaller than the inner wall diameter of the annular air cushion (9).

8. The milk frothing device according to claim 7, characterized in that: The screw rod (30) is fixedly connected to the output end of the driving motor (31), and the inner wall of the sliding frame (29) and the outer wall of the threaded sleeve (32) are both configured as smooth surfaces.

9. The milk frothing device according to claim 1, characterized in that: The docking anti-expansion component comprises a tap valve (36), a lower discharge pipe (37) and a distance sensor (38); The tap valve (36) is fixedly connected to one side of the outer wall of the delivery pipe (2) and close to the top thereof, the lower pipe (37) is fixedly connected to the lower surface of the tap valve (36), and the distance sensor (38) is fixedly installed on one side of the outer wall of the lower pipe (37); The docking anti-expansion assembly also includes a support block (39), a stepping motor (40), a rotating block (41), a docking bucket (42), and a dispersion blade (43); The support block (39) is located on one side of the lower discharge pipe (37) and is fixedly connected to the faucet valve (36); the stepping motor (40) is fixedly mounted on the bottom end of the support block (39); and the rotating block (41) is fixedly located on the outer wall of the output end of the stepping motor (40); the stepping motor (40) is used to drive the rotating block (41) to rotate; A docking bucket (42) is fixedly mounted on the bottom end of the rotating block (41), and a dispersion blade (43) is fixedly connected to the inner wall of the docking bucket (42), and the inner wall diameter of the docking bucket (42) is larger than the inner wall diameter of the lower discharge pipe (37).

10. The milk frothing device according to claim 9, characterized in that: The docking bucket (42) and the dispersion blades (43) are welded, and the inner wall of the docking bucket (42) is configured as a smooth surface.

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