Coffee machine capable of driving automatic cleaning

Abstract

The invention discloses a coffee machine capable of driving automatic cleaning. The coffee machine comprises a coffee machine body and a coffee pot, a rotating shaft is rotatably connected to the interior of the coffee pot, a fixing plate is rotatably connected to the top of the rotating shaft, a transmission mechanism is arranged in the fixing plate, and a fixing rod is fixedly connected to the exterior of the fixing plate. According to the coffee machine capable of driving automatic cleaning, a waterproof servo motor is controlled to drive a rotating shaft to rotate forwards, at the moment, a sliding rod in a second sliding groove enters a first sliding groove under the action of an inclined groove, in the process, the sliding rod drives a rack to move, and then the rack drives a two-way lead screw to rotate through a gear; at the moment, the two-way screw rod drives the two sliding blocks on the two-way screw rod to get close to each other, the sliding blocks drive the cleaning scraping plate to get close to the inner wall of the coffee pot and abut against the inner wall of the coffee pot through the supporting rods and the connecting rods, the cleaning scraping plate starts to rotate along with continuous rotation of the rotating shaft, the inner wall of the coffee pot is automatically cleaned, and cleaning is more convenient compared with manual cleaning; and the experience feeling of a user can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee machines, and more particularly to a coffee machine capable of driving automatic cleaning. Background Art

[0002] The traditional coffee brewing process requires several processes such as roasting, grinding, brewing, and filtering. Although the traditional coffee making process is very ornamental and interesting, and brewing coffee in leisure time is also very interesting, many people do not have time to brew coffee in the modern fast-paced life. Therefore, coffee machines came into being. The working principle of the coffee machine is: cold water is added to the water tank of the coffee machine, and the water flows from the water tank into the heating device for heating. The heated water produces steam and bubbles. Under the action of pressure, the hot water is sprayed out through the showerhead and quickly passes through the filter basket containing coffee powder. The pressure-rich hot water and the coffee powder produce an average resistance, thereby extracting delicious coffee.

[0003] Some existing coffee machines need to be used with a corresponding coffee pot in addition to the main body of the coffee machine. However, the structure of the coffee pot is generally simple and does not have the ability of automatic cleaning. After a period of use, coffee stains are easily attached to the inner wall of the coffee pot. Manual cleaning is inconvenient and reduces the overall user experience of the coffee pot. Therefore, we provide a coffee machine with automatic cleaning function. Summary of the invention

[0004] The object of the present invention is to provide a coffee machine capable of automatic cleaning to solve the problems raised in the above background technology: Some existing coffee pots are generally simple in structure and do not have the ability to clean themselves automatically. After a period of use, coffee stains are easily attached to the inner wall of the coffee pot. Manual cleaning is inconvenient and reduces the overall user experience of the coffee pot.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A coffee machine with automatic cleaning function comprises a coffee machine body and a coffee pot, wherein a rotating shaft is rotatably connected inside the coffee pot, a fixed plate is rotatably connected to the top of the rotating shaft, a transmission mechanism is arranged inside the fixed plate, a fixed rod is fixedly connected to the outside of the fixed plate, the fixed rod is fixedly connected to the coffee pot, there are three fixed rods in total, and the three fixed rods are symmetrically distributed, a waterproof servo motor is fixedly connected to the top of the fixed plate, an output shaft of the waterproof servo motor vertically penetrates the fixed plate and extends to the bottom of the fixed plate, the output shaft of the waterproof servo motor is rotatably connected to the fixed plate, the rotating shaft is fixedly connected to the output end of the waterproof servo motor, and a cleaning mechanism is arranged inside the rotating shaft.

[0006] Preferably, the cleaning mechanism includes a bidirectional screw rod, which is rotatably connected to the rotating shaft. There are three bidirectional screw rods in total, and the three bidirectional screw rods are symmetrically distributed. A groove is opened inside the rotating shaft, and the bidirectional screw rod passes through the rotating shaft and extends to the inside of the groove. A slider is sleeved on the outside of the bidirectional screw rod and located on the inner side of the groove. The slider is threadedly connected to the bidirectional screw rod. The outside of the slider is rotatably connected to a support rod, and the outside of the support rod is rotatably connected to a connecting rod at one end away from the slider. The outside of the connecting rod is fixedly connected to a cleaning scraper at one end away from the support rod, and the cleaning scraper is used in conjunction with a coffee pot.

[0007] Preferably, the outer side wall of the slider is in contact with the inner side wall of the groove, and the slider is slidably connected to the groove.

[0008] Preferably, the transmission mechanism includes a gear, which is fixedly connected to the bidirectional screw rod, a first slide groove is provided on the inner side of the fixed plate close to the fixed rod, a second slide groove is provided on the inner side of the fixed plate away from the fixed rod, an inclined groove is provided inside the fixed plate and located between the first slide groove and the second slide groove, the first slide groove and the second slide groove are both connected to the inclined groove, a slide rod is slidably connected inside the first slide groove, a rack is fixedly connected to the bottom of the slide rod, and the rack is meshingly connected to the gear.

[0009] Preferably, the insides of the first sliding groove and the second sliding groove are both fixedly connected with mounting rods, and the outsides of the mounting rods are fixedly connected with elastic blocking sheets.

[0010] Preferably, a limiting groove is provided inside the rotating shaft and below the rack, a limiting block is slidably connected inside the limiting groove, and the limiting block is fixedly connected to the rack.

[0011] Preferably, the cross-sections of the limiting groove and the limiting block are both isosceles trapezoidal structures.

[0012] Preferably, a control switch is fixedly connected to the outside of the coffee pot, and the waterproof servo motor is electrically connected to the control switch.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1) When the automatic cleaning coffee machine is in use, generally, the cleaning scraper in the coffee pot does not fit the inner wall of the coffee pot. At this time, the slide bar is located in the second slide slot. After the waterproof servo motor is started, it will drive the rotating shaft to rotate, and the rotating shaft will drive the supporting rod, the connecting rod and the cleaning scraper to rotate as a whole, so as to stir the coffee in the coffee pot.

[0014] 2) When the coffee machine with automatic cleaning is in use, the waterproof servo motor is controlled to drive the rotating shaft to rotate forward. At this time, under the action of the inclined groove, the slide bar in the second slide groove will enter the first slide groove. During the process, the slide bar will drive the rack to move, and the rack will drive the bidirectional lead screw to rotate through the gear. At this time, the bidirectional lead screw drives the two sliders on itself to approach each other, and the slider drives the cleaning scraper to approach the inner wall of the coffee pot and press against it through the support rod and the connecting rod. As the rotating shaft continues to rotate, the cleaning scraper will also start to rotate and automatically clean the inner wall of the coffee pot. Compared with manual cleaning, it is more convenient and can enhance the user experience.

[0015] 3) When the coffee machine driven for automatic cleaning is in use, the waterproof servo motor is controlled to reverse and the cleaning scraper can be retracted, so that the cleaning scraper is separated from the inner wall of the coffee pot. At this time, the cleaning scraper has the stirring function again, and because the cleaning scraper is not always pressed against the inner wall of the coffee pot, the cleaning scraper can be prevented from rubbing against the inner wall of the coffee pot, thereby increasing the service life of the cleaning scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional schematic diagram of a coffee maker of the present invention; Figure 3 It is a structural schematic diagram of the bidirectional screw rod of the present invention; Figure 4 It is a structural schematic diagram of the first chute of the present invention; Figure 5 It is a schematic diagram of the structure of the limiting groove of the present invention; Figure 6 It is a schematic diagram of the limit block structure of the present invention.

[0017] Explanation of the numbers in the figure: 1. Coffee machine body; 2. Coffee pot; 3. Rotating shaft; 4. Fixed plate; 5. Fixed rod; 6. Waterproof servo motor; 7. Cleaning mechanism; 701. Groove; 702. Bidirectional screw rod; 703. Sliding block; 704. Support rod; 705. Connecting rod; 706. Cleaning scraper; 8. Transmission mechanism; 801. First slide groove; 802. Second slide groove; 803. Inclined groove; 804. Mounting rod; 805. Elastic baffle; 806. Sliding rod; 807. Rack; 808. Gear; 809. Limiting groove; 810. Limiting block; 9. Control switch. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 6 A coffee machine with automatic cleaning function comprises a coffee machine body 1 and a coffee pot 2. A rotating shaft 3 is rotatably connected inside the coffee pot 2. A fixed plate 4 is rotatably connected to the top of the rotating shaft 3. A transmission mechanism 8 is arranged inside the fixed plate 4. The transmission mechanism 8 can drive a bidirectional screw 702 on the rotating shaft 3 to rotate. A fixed rod 5 is fixedly connected to the outside of the fixed plate 4. The fixed rod 5 is fixedly connected to the coffee pot 2. There are three fixed rods 5 in total. The three fixed rods 5 are symmetrically distributed. A waterproof servo motor 6 is fixedly connected to the top of the fixed plate 4. The output shaft of the waterproof servo motor 6 vertically penetrates the fixed plate 4 and extends to the bottom of the fixed plate 4. The output shaft of the waterproof servo motor 6 is rotatably connected to the fixed plate 4. The rotating shaft 3 is fixedly connected to the output end of the waterproof servo motor 6. A cleaning mechanism 7 is arranged inside the rotating shaft 3. The cleaning mechanism 7 can be used to automatically clean the inner wall of the coffee pot 2.

[0020] Furthermore, the cleaning mechanism 7 includes a bidirectional screw rod 702, which is rotatably connected to the rotating shaft 3. There are three bidirectional screw rods 702, which are symmetrically distributed. A groove 701 is provided inside the rotating shaft 3. The bidirectional screw rod 702 passes through the rotating shaft 3 and extends to the inside of the groove 701. A slider 703 is provided outside the bidirectional screw rod 702 and is located on the inner side of the groove 701. The slider 703 is threadedly connected to the bidirectional screw rod 702. The outside of the slider 703 is rotatably connected to the rotating shaft 3. A support rod 704 is connected, and the outer end of the support rod 704 away from the slider 703 is rotatably connected to a connecting rod 705, and the outer end of the connecting rod 705 away from the support rod 704 is fixedly connected to a cleaning scraper 706. The cleaning scraper 706 is used in conjunction with the coffee pot 2. When the bidirectional screw rod 702 rotates, it will drive the support rod 704 to move through the slider 703, and the support rod 704 will drive the cleaning scraper 706 to move through the connecting rod 705, thereby adjusting the distance of the cleaning scraper 706.

[0021] Furthermore, the outer wall of the slider 703 fits with the inner wall of the groove 701, and the slider 703 is slidably connected to the groove 701, and the groove 701 itself is used to limit the slider 703. When the bidirectional screw rod 702 rotates, the slider 703 is limited by the groove 701, so that the rotating bidirectional screw rod 702 can drive the slider 703 to move in the groove 701.

[0022] Furthermore, the transmission mechanism 8 includes a gear 808, which is fixedly connected to the bidirectional screw rod 702. A first slide groove 801 is provided on the side of the fixed plate 4 close to the fixed rod 5, and a second slide groove 802 is provided on the side of the fixed plate 4 away from the fixed rod 5. An inclined groove 803 is provided inside the fixed plate 4 and between the first slide groove 801 and the second slide groove 802. The first slide groove 801 and the second slide groove 802 are both connected to the inclined groove 803. A slide rod 806 is slidably connected inside the first slide groove 801, and a rack 807 is fixedly connected to the bottom of the slide rod 806. The rack 807 is meshed with the gear 808. When 807 moves, the two-way screw rod 702 will be driven to rotate through the gear 808, and the two-way screw rod 702 will drive the two sliders 703 on itself to move simultaneously, so that the two sliders 703 are close to or away from each other. At this time, the slider 703 drives the cleaning scraper 706 away from or close to the inner wall of the coffee pot 2 through the support rod 704 and the connecting rod 705. When the cleaning scraper 706 is in contact with the inner wall of the coffee pot 2, the inner wall of the coffee pot 2 can be automatically cleaned. When the cleaning scraper 706 is separated from the inner wall of the coffee pot 2, the cleaning scraper 706 can be used as a stirring rod to stir the coffee in the coffee pot 2.

[0023] Furthermore, the inside of the first slide groove 801 and the second slide groove 802 are fixedly connected with the mounting rod 804, and the outside of the mounting rod 804 is fixedly connected with the elastic blocking piece 805. The elastic blocking piece 805 can block the inclined groove 803 between the first slide groove 801 and the second slide groove 802. When the rotating shaft 3 only rotates forward, the slide bar 806 will only slide in the first slide groove 801, but when the rotating shaft 3 is reversed, the slide bar 806 can enter the inclined groove 803 from the first slide groove 801, and finally enter the second slide groove 802. At this time, the rack 807 will move a distance, and when the rotating shaft 3 rotates forward again, the slide bar 806 can return to the first slide groove 801.

[0024] Furthermore, a limiting groove 809 is provided inside the rotating shaft 3 and below the rack 807. The limiting groove 809 is internally slidably connected to a limiting block 810. The limiting block 810 is fixedly connected to the rack 807. The limiting groove 809 and the limiting block 810 are used to limit the rack 807 so that the rack 807 can only move back and forth in one direction, thereby utilizing the back and forth movement of the rack 807 to drive the gear 808 to rotate forward and reverse.

[0025] Furthermore, the cross-sections of the limiting groove 809 and the limiting block 810 are both isosceles trapezoidal structures. The limiting groove 809 and the limiting block 810 with isosceles trapezoidal structures in cross-section can limit the position between the rack 807 and the rotating shaft 3, so that the rack 807 will not be separated from the rotating shaft 3.

[0026] Furthermore, a control switch 9 is fixedly connected to the outside of the coffee pot 2, and the waterproof servo motor 6 is electrically connected to the control switch 9. The electrical equipment is powered by an external power supply, such as a rechargeable battery, and the start, stop, and forward and reverse rotation of the waterproof servo motor 6 are controlled by the control switch 9.

[0027] The steps of using the present invention are as follows: when the coffee machine with automatic cleaning function is in use, generally, the cleaning scraper 706 in the coffee pot 2 does not fit the inner wall of the coffee pot 2. At this time, the sliding rod 806 is located in the second slide groove 802. After the waterproof servo motor 6 is started, it will drive the rotating shaft 3 to rotate. The rotating shaft 3 will then drive the supporting rod 704, the connecting rod 705 and the cleaning scraper 706 to rotate as a whole, so as to stir the coffee in the coffee pot 2. If it is necessary to automatically clean the inner wall of the coffee pot 2, the waterproof servo motor 6 can be controlled to drive the rotating shaft 3 to rotate forward. At this time, under the action of the inclined groove 803, the second slide groove 802 is opened. The sliding bar 806 in 02 will enter the first sliding groove 801. During the process, the sliding bar 806 will drive the rack 807 to move, and the rack 807 will drive the bidirectional screw rod 702 to rotate through the gear 808. At this time, the bidirectional screw rod 702 drives the two sliding blocks 703 on itself to approach each other, and the sliding block 703 drives the cleaning scraper 706 to approach the inner wall of the coffee pot 2 and press against it through the supporting rod 704 and the connecting rod 705. As the rotating shaft 3 continues to rotate, the cleaning scraper 706 will also start to rotate and automatically clean the inner wall of the coffee pot 2. Compared with manual cleaning, it is more convenient and can enhance the user experience.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coffee machine with automatic cleaning function, comprising a coffee machine body (1) and a coffee pot (2), characterized in that: The coffee pot (2) is rotatably connected to a rotating shaft (3) inside, the top of the rotating shaft (3) is rotatably connected to a fixed plate (4), a transmission mechanism (8) is arranged inside the fixed plate (4), a fixed rod (5) is fixedly connected to the outside of the fixed plate (4), the fixed rod (5) is fixedly connected to the coffee pot (2), there are three fixed rods (5) in total, the three fixed rods (5) are symmetrically distributed, a waterproof servo motor (6) is fixedly connected to the top of the fixed plate (4), the output shaft of the waterproof servo motor (6) vertically penetrates the fixed plate (4) and extends to the bottom of the fixed plate (4), the output shaft of the waterproof servo motor (6) is rotatably connected to the fixed plate (4), the rotating shaft (3) is fixedly connected to the output end of the waterproof servo motor (6), and a cleaning mechanism (7) is arranged inside the rotating shaft (3).

2. The coffee machine with automatic cleaning function according to claim 1, characterized in that: The cleaning mechanism (7) comprises a bidirectional screw rod (702), the bidirectional screw rod (702) being rotatably connected to the rotating shaft (3), there being three bidirectional screw rods (702) in total, the three bidirectional screw rods (702) being symmetrically distributed, a groove (701) being provided inside the rotating shaft (3), the bidirectional screw rod (702) passing through the rotating shaft (3) and extending into the groove (701), a slider (703) being sleeved outside the bidirectional screw rod (702) and located inside the groove (701), the slider (703) being threadedly connected to the bidirectional screw rod (702), the outside of the slider (703) being rotatably connected to a support rod (704), the outside of the support rod (704) being rotatably connected to an end thereof away from the slider (703), the outside of the connection rod (705) being fixedly connected to an end thereof away from the support rod (704), the cleaning scraper (706) being used in conjunction with the coffee pot (2).

3. The automatic cleaning coffee machine according to claim 2, characterized in that: The outer wall of the sliding block (703) is in contact with the inner wall of the groove (701), and the sliding block (703) is slidably connected to the groove (701).

4. The coffee machine with automatic cleaning function according to claim 1, characterized in that: The transmission mechanism (8) comprises a gear (808), wherein the gear (808) is fixedly connected to the bidirectional screw rod (702); a first slide groove (801) is provided on a side of the fixed plate (4) close to the fixed rod (5); a second slide groove (802) is provided on a side of the fixed plate (4) away from the fixed rod (5); an inclined groove (803) is provided inside the fixed plate (4) and located between the first slide groove (801) and the second slide groove (802); the first slide groove (801) and the second slide groove (802) are both connected to the inclined groove (803); a slide rod (806) is slidably connected inside the first slide groove (801); a rack (807) is fixedly connected to the bottom of the slide rod (806); and the rack (807) is meshingly connected to the gear (808).

5. The automatic cleaning coffee machine according to claim 4, characterized in that: The first slide groove (801) and the second slide groove (802) are both fixedly connected to a mounting rod (804) inside, and an elastic blocking piece (805) is fixedly connected to the outside of the mounting rod (804).

6. The coffee machine with automatic cleaning function according to claim 4, characterized in that: A limiting groove (809) is provided inside the rotating shaft (3) and below the rack (807); a limiting block (810) is slidably connected inside the limiting groove (809); and the limiting block (810) is fixedly connected to the rack (807).

7. The automatic cleaning coffee machine according to claim 6, characterized in that: The cross-sections of the limiting groove (809) and the limiting block (810) are both isosceles trapezoidal structures.

8. The automatic cleaning coffee machine according to claim 1, characterized in that: The exterior of the coffee pot (2) is fixedly connected to a control switch (9), and the waterproof servo motor (6) is electrically connected to the control switch (9).

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