Automatic lifting vacuum tea making machine

Abstract

The present invention relates to an automatically lifting vacuum tea brewing machine, comprising a machine body and a brewing cup assembly, wherein the brewing cup assembly comprises a brewing cup and a filter net built in the brewing cup, wherein a vacuum pumping assembly is provided in the machine body, wherein the vacuum pumping assembly is connected to the brewing cup and performs a vacuum treatment on the brewing cup, wherein an automatic lifting assembly is also provided in the machine body, wherein the automatic lifting assembly is magnetically connected to the filter net and drives the filter net to move up and down in the brewing cup. The present invention. The present invention actively vacuums the inside of the brewing cup through the vacuum pumping assembly. Compared with the simple sealing structure of the existing tea brewing machine, the present invention makes the inside of the brewing cup truly in an oxygen-free environment, thereby preventing the nutrients in the tea from being oxidized, and can release tea polyphenols in a high-temperature vacuum environment, thereby improving the taste of the tea.

Description

Technical Field

[0001] The invention relates to the field of tea making machines, in particular to an automatically lifting vacuum tea making machine. Background Art

[0002] A tea maker is a household appliance that integrates water boiling, tea soaking and water dispensing, which can improve tea brewing efficiency and is suitable for the current fast pace of life. However, existing tea makers have the following defects: tea leaves are exposed to the air during the tea brewing process and are easily oxidized, resulting in a poor taste of the brewed tea; and the filter for placing tea leaves is fixed and the brewing cup needs to be manually operated, making it difficult to control the tea brewing time.

[0003] In order to solve the problem of tea oxidation, some tea brewing machines adopt a sealed structure to reduce the air in the brewing cup. However, the existing sealed brewing cup is only structurally blocked, so that the air inside and outside the brewing cup cannot circulate, and a large amount of oxygen still remains in the cup.

[0004] In addition, there are a few tea makers on the market with lifting mechanisms, which use a screw-type lifting structure to solve the need for automatic lifting of the filter. However, this lifting method will change the height of the brewing cup. When the filter is raised, the entire tea maker will occupy a larger space. Moreover, the lifting mechanism will destroy the integrity of the brewing cup structure, resulting in a decrease in its airtightness, affecting the taste of the tea.

[0005] The above problems are worth solving. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides an automatically lifting vacuum tea making machine.

[0007] The technical solution of the present invention is as follows:

[0008] A vacuum tea maker with automatic lifting function comprises a machine body and a brewing cup assembly, wherein the brewing cup assembly comprises a brewing cup and a filter net built into the brewing cup. The machine body is characterized in that a vacuum pumping component is provided in the machine body, the vacuum pumping component is connected to the brewing cup and performs a vacuum treatment on the brewing cup, and an automatic lifting component is also provided in the machine body, the automatic lifting component is magnetically connected to the filter net and drives the filter net to move up and down in the brewing cup.

[0009] The present invention according to the above scheme is characterized in that the vacuum pump assembly includes a vacuum pump and a three-way solenoid valve, the air inlet of the vacuum pump is connected to the first port of the three-way solenoid valve, the second port of the three-way solenoid valve is connected to the brewing cup, the air outlet of the vacuum pump is connected to the atmospheric environment and is used for exhaust, and the third port of the three-way solenoid valve is connected to the atmospheric environment and is used for pressure relief.

[0010] Furthermore, an exhaust pipe is provided in the cup cover of the brewing cup, the exhaust pipe is connected to the second port of the three-way solenoid valve, and a plurality of through holes are provided on the cup cover bottom plate of the cup cover, and the exhaust pipe is connected to the cup body of the brewing cup through the through holes.

[0011] Furthermore, a cup cover silicone ring is provided around the lower surface of the cup cover bottom plate, and a cup mouth silicone ring is provided around the outer periphery of the cup mouth of the cup body. When the cup cover is closed, the cup cover silicone ring is in close contact with the cup mouth silicone ring.

[0012] The present invention according to the above scheme is characterized in that the automatic lifting component includes a synchronous motor, a rotating rod, a lifting sliding seat and a bracket plate with a sliding groove, the synchronous motor is connected to the rotating rod and drives the rotating rod to swing back and forth, and the rotating rod is connected to the lifting sliding seat and drives the lifting sliding seat to move up and down in the sliding groove.

[0013] Furthermore, the automatic lifting assembly also includes a first micro switch and a second micro switch, the first micro switch and the second micro switch are respectively located at the beginning and end of the swing trajectory of the rotating rod, and the two micro switches are connected to the control panel of the vacuum tea maker.

[0014] The present invention according to the above scheme is characterized in that the rotating rod is provided with a strip-shaped hole, and the head end of the lifting sliding seat passes through the sliding groove and the strip-shaped hole in sequence.

[0015] Furthermore, the clamping foot of the lifting sliding seat is connected to the first magnet, and the first magnet is magnetically connected to the filter screen.

[0016] Specifically, the angle passes through the sliding slot and clamps the first magnet.

[0017] The present invention according to the above scheme is characterized in that the cup cover of the brewing cup includes a cup cover upper shell and a cup cover bottom plate that are snap-fitted together, and the cup cover bottom plate is provided with a water inlet pipe, and the water inlet pipe is connected to the cup body of the brewing cup through the through hole of the cup cover bottom plate.

[0018] Furthermore, the upper and lower surfaces of the cup cover bottom plate are provided with flow guide slopes.

[0019] Furthermore, a condensed water collection port is provided below the bottom plate of the cup cover and close to one side of the machine body.

[0020] The present invention according to the above scheme is characterized in that the cup lid of the brewing cup is provided with a lid opening mechanism, which includes an elastic button, an elastic push rod and a locking member connected in sequence, and the hook foot of the locking member passes through the bottom plate of the cup lid and hooks the slot of the body.

[0021] Furthermore, the elastic button is provided with an inclined surface, which is in contact and connected with the head end surface of the elastic push rod, the tail end of the elastic push rod is connected with the head end of the locking piece, and the locking piece is connected to the bottom plate of the cup cover via a rotating shaft. When the elastic push rod moves horizontally, it drives the locking piece to rotate around the rotating shaft, so that its hook can be inserted into or disengaged from the slot.

[0022] The present invention according to the above scheme has the following beneficial effects:

[0023] The present invention actively evacuates the interior of the brewing cup through a vacuum pumping component. Compared with the simple sealing structure of the existing tea brewing machine, the present invention makes the interior of the brewing cup truly in an oxygen-free environment, thereby preventing the tea nutrients from being oxidized, and can release tea polyphenols in a high-temperature vacuum environment, thereby improving the taste of the tea.

[0024] The present invention also uses a magnetic suction type automatic lifting component outside the brewing cup body to control the up and down movement of the filter net inside the cup body, and the structure of the cup body is not changed during the lifting process. Therefore, compared with the lifting mechanism of the existing tea brewing machine, the present invention not only occupies a small space, but also can maintain the air tightness of the brewing cup body during the tea brewing process of the filter net, ensuring that the inside of the brewing cup is always in an oxygen-free environment during the tea brewing process;

[0025] Furthermore, the present invention can control the length of tea soaking time by raising and lowering the filter screen to obtain the best tea brewing taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural exploded view of the brewing cup component of the present invention;

[0028] Figure 3 for Figure 2 A magnified view of part A;

[0029] Figure 4 This is a bottom perspective diagram of the cup cover of the present invention;

[0030] Figure 5 It is a structural exploded view of the automatic lifting component part of the present invention;

[0031] Figure 6 for Figure 5 A magnified view of part B;

[0032] Figure 7 This is a schematic diagram of the structure of the front cover of the machine body of the present invention from a rear view angle;

[0033] Figure 8 It is a connection diagram of the vacuum pumping assembly of the present invention.

[0034] In the figure, 1, machine body; 11, front cover; 111, brewing station; 112, sliding track;

[0035] 2. Brewing cup assembly; 21. Cup body; 212. Base; 213. Silicone ring on the cup mouth; 22. Filter; 23. Cup cover; 231. Air extraction pipe; 232. Water inlet pipe; 233. Through hole; 234. Silicone ring on the cup cover; 235. Condensate collection port;

[0036] 3. Vacuum pump assembly; 31. Vacuum pump; 32. Three-way solenoid valve; 321. First port; 322. Second port; 323. Third port;

[0037] 41. synchronous motor; 42. rotating rod; 43. lifting sliding seat; 44. bracket plate; 441. sliding slot; 45. first micro switch; 46. second micro switch;

[0038] 5. Control panel;

[0039] 6. The first magnet;

[0040] 71. elastic button; 72. elastic push rod; 721. strip slot; 73. locking member; 74. first spring; 75. second spring;

[0041] 8. Touch screen;

[0042] 91. Water tank; 92. Tea cup; 93. Sewage tray. DETAILED DESCRIPTION

[0043] In order to better understand the purpose, technical solution and technical effect of the present invention, the present invention is further explained below in conjunction with the accompanying drawings and embodiments. At the same time, it is stated that the embodiments described below are only used to explain the present invention and are not used to limit the present invention.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0045] The directions or positions indicated by terms such as “up”, “down”, “left”, “right”, “front”, “back”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and are not to be construed as limitations on the present technical solution.

[0046] The terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features.

[0047] “Several” means two or more than two, unless clearly and specifically defined otherwise.

[0048] like Figure 1 , Figure 5 As shown, an automatically lifting vacuum tea brewing machine includes a body 1 and a brewing cup assembly 2, the brewing cup assembly 2 includes a brewing cup and a filter 22 built into the brewing cup, a vacuum assembly 3 is provided in the body 1, the vacuum assembly 3 is connected to the brewing cup, and vacuumizes the brewing cup, an automatic lifting assembly is also provided in the body 1, the automatic lifting assembly is magnetically connected to the filter 22, and drives the filter 22 to move up and down in the brewing cup.

[0049] The present invention actively draws a vacuum inside the brewing cup through a vacuum pumping component. Compared with the simple sealing structure of the existing tea brewing machine, the present invention makes the inside of the brewing cup truly in an oxygen-free environment, thereby preventing the tea nutrients from being oxidized. Furthermore, tea polyphenols can be released in a high-temperature vacuum environment to improve the taste of the tea.

[0050] The present invention also utilizes a magnetic automatic lifting component outside the brewing cup body to drive the filter net inside the cup body to move up and down, and the structure of the cup body is not changed during the lifting process. Therefore, compared with the lifting mechanism of the existing tea maker, the present invention not only occupies a small space, but also can maintain the air tightness of the brewing cup body during the filter net tea brewing process, ensuring that the inside of the brewing cup is always an oxygen-free environment during the tea brewing process.

[0051] A water outlet valve is provided at the bottom of the cup body 21 of the brewing cup, which is electrically connected to the control board 5, and the water outlet valve can be controlled to discharge water through the touch screen 8. The bottom opening of the cup body 21 is closed inward, and waterproof sealing rings are provided on both sides of the periphery of the bottom opening of the cup. The closed structure and the waterproof sealing ring are used together to effectively prevent the liquid in the cup body from leaking from the side of the cup bottom, while increasing the air tightness inside the cup body.

[0052] A base 212 is also fixed to the bottom of the brewing cup, and the base 212 is detachably connected to the body 1 of the tea maker, so that the user can pick up the brewing cup as a whole and clean the inside of the brewing cup. When connecting, align the water outlet in the center of the base 212 with the water inlet of the brewing table 111 on the front cover 11 and insert it. At this time, the inner side of the base can trigger the brewing switch of the tea maker, and the tea maker is in a start-up state.

[0053] like Figure 8 As shown, in this embodiment, the vacuum pump component 3 includes a vacuum pump 31 and a three-way solenoid valve 32, the air inlet of the vacuum pump 31 is connected to the first port 321 of the three-way solenoid valve 32, the second port 322 of the three-way solenoid valve 32 is connected to the brewing cup of the brewing cup component 2, the air outlet of the vacuum pump 31 is connected to the atmospheric environment and is used for exhaust, and the third port 323 of the three-way solenoid valve 32 is connected to the atmospheric environment and is used for pressure relief.

[0054] The specific use process is that before the tea maker starts to fill water to make tea, the inside of the brewing cup is vacuumed, the vacuum pump 31 is turned on, and the third port 323 of the three-way solenoid valve 32 is closed. Under the action of the vacuum pump 31, the air in the brewing cup passes through the cup cover 23, the second port 322 of the three-way solenoid valve 32, the first port 321 of the three-way solenoid valve 32, the air inlet of the vacuum pump 31 and the air outlet of the vacuum pump 31 in sequence, and finally the gas is discharged into the atmosphere, so that the inside of the brewing cup is a truly oxygen-free environment, the vacuum pump 31 stops running, and the tea maker starts to brew tea; when the tea maker finishes brewing tea, the third port 323 of the three-way solenoid valve 32 is opened, and under the negative pressure of the brewing cup, the air in the atmosphere passes through the third port 323 of the three-way solenoid valve 32, the second port 322 of the three-way solenoid valve 32, the cup cover 23 and the brewing cup in sequence to relieve the pressure inside the brewing cup, and finally the water outlet function of the tea maker is turned on to let the brewed tea flow out.

[0055] like Figure 2 to Figure 4 As shown, in an optional embodiment, an exhaust pipe 231 connected to the second port 322 of the three-way solenoid valve 32 is provided in the cup cover 23 of the brewing cup, and a plurality of through holes 233 are provided on the cup cover bottom plate of the cup cover 23, and the exhaust pipe 231 is connected to the cup body 21 of the brewing cup through the through holes 233.

[0056] A cup cover silicone ring 234 is provided around the lower surface of the cup cover bottom plate, and a groove is provided on the lower surface of the cup cover silicone ring 234 to match the cup mouth of the cup body 21. A cup mouth silicone ring 213 is provided around the outer periphery of the cup mouth of the cup body 21. When the cup cover 23 is closed, the cup cover silicone ring 234 is in close contact with the cup mouth silicone ring 213. The cup cover silicone ring 234 not only seals and protects the periphery of the cup cover bottom plate, but also seals the joint between the cup cover 23 and the cup body 21.

[0057] The cup cover silicone ring 213 seals the periphery of the cup cover bottom plate. When vacuuming, the air in the brewing cup can only be drawn out from the plurality of through holes 233 of the cup cover bottom plate, which can prevent the side wall of the brewing cup from generating flowing gas, thereby preventing the side wall and the opening of the cup body 21 from being squeezed and deformed by the pressure difference. The cup cover silicone ring 234 seals the joint between the cup cover 23 and the cup body 21, and cooperates with the cup mouth silicone ring 213 of the cup body 21 to strengthen the sealing of the place, ensuring that when the cup cover of the brewing cup is closed, the brewing cup is in a sealed state, thereby improving the vacuuming efficiency.

[0058] like Figure 5 to Figure 7 As shown, in an optional embodiment, the automatic lifting assembly includes a synchronous motor 41, a rotating rod 42, a lifting sliding seat 43 and a bracket plate 44 with a sliding groove 441. The synchronous motor 41 is connected to the rotating rod 42 and drives the rotating rod 42 to swing back and forth. The rotating rod 42 is connected to the lifting sliding seat 43 and drives the lifting sliding seat 43 to move up and down in the sliding groove 441.

[0059] The head end of the rotating rod 42 is fixedly connected to the rotating shaft of the synchronous motor 41 to achieve swinging. Preferably, a strip hole is provided on the rotating rod 42, and the strip hole is composed of a round hole and a long hole. The diameter of the round hole is larger than the width of the long hole, and the diameter of the round hole is adapted to the diameter of the head end of the lifting sliding seat 43. When installing, the head end of the lifting sliding seat 43 passes through the sliding groove 441 and the round hole in sequence, and then moves to the long hole.

[0060] During the swinging process of the rotating rod 42, the intersection point of the long hole and the sliding groove (i.e., the position of the head end of the lifting sliding seat) moves up and down. For example, when the rotating rod 42 is placed horizontally, the intersection point is in the middle position of the sliding groove 441. At this time, if the synchronous motor 41 rotates clockwise and the rotating rod 42 swings upward, the intersection point moves up; if the synchronous motor 41 rotates counterclockwise and the rotating rod 42 swings downward, the intersection point moves downward. Therefore, under the joint action of the long hole and the sliding groove, the lifting sliding seat moves up and down.

[0061] The lifting sliding seat 43 has its head end passing through the sliding groove 441 of the bracket plate 44 and the strip hole of the rotating rod 42 in sequence, and the clamping foot of the lifting sliding seat 43 is connected to the first magnet 6. Specifically, a sliding track 112 is provided on the front cover plate 11 of the tea maker body 1, and the lifting sliding seat 43 and the first magnet 6 are respectively located on both sides of the front cover plate 11. The lifting sliding seat 43 is provided with a pair of "concave"-shaped clamping feet, and one side of the shell that wraps the first magnet 6 is provided with two connecting ears that match the clamping feet, and the two connecting ears pass through the sliding track 441 and are connected to the clamping feet of the lifting sliding seat 43.

[0062] The first magnet 6 is located outside the brewing cup, and the filter 22 is located inside the brewing cup. The filter 22 is magnetic. In this embodiment, a second magnet is arranged inside the base of the filter to make it magnetic. When the lifting sliding seat 43 moves up and down, the two magnet blocks use magnetic force to move the filter up and down inside the brewing cup, and the component controlling the lifting is located outside the brewing cup, so the structure of the cup body is not changed due to the lifting.

[0063] In an optional embodiment, the first magnet is arc-shaped and cooperates with the outer arc surface of the brewing cup, which can not only reduce the space occupied by the first magnet in the tea maker, but also increase the magnetic attraction area with the second magnet inside the brewing cup, thereby improving the magnetic attraction firmness.

[0064] In an optional embodiment, in addition to the synchronous motor 41, the rotating rod 42, the lifting sliding seat 43, and the bracket plate 44 with a sliding groove 441, the automatic lifting assembly also includes a first micro switch 45 and a second micro switch 46. The first micro switch 45 and the second micro switch 46 are respectively located at the beginning and end of the swing trajectory of the rotating rod 42, and the two micro switches are connected to the control panel 5 of the vacuum tea maker.

[0065] Its working principle is: the synchronous motor uses its automatic adjustment of forward and reverse direction to change the movement direction of the rotating rod; the first micro switch is turned on and off to determine whether the rotating rod has reached the top position of the sliding groove, and the second micro switch is turned on and off to determine whether the rotating rod has reached the bottom position of the sliding groove.

[0066] When the rotating rod 42 swings to the upper limit position or the lower limit position, it touches the micro switch on that side. For example, when the rotating rod 42 swings to the upper limit position, the upper side touches the first micro switch 45 above, and the synchronous motor 42 stops rotating. When the rotating rod 42 swings to the lower limit position, the lower side touches the second micro switch 46 above, and the synchronous motor 42 stops rotating.

[0067] A support plate 44 with a sliding groove 441 is provided, on which a first micro switch 45 and a second micro switch 46 are fixed, and a sliding groove 441 is further provided in the middle. The support plate 44 is installed at the rear side of the front cover 11, i.e., inside the machine body 1. During installation, the sliding groove 441 is aligned with the sliding track 112 on the front cover 11, so that the lifting sliding seat can move smoothly.

[0068] In other embodiments, the automatic lifting component may also be a gear rack structure or a belt drive structure to achieve automatic lifting.

[0069] The present invention also provides a control method for an automatically lifting vacuum tea maker. When the tea maker is just turned on, the synchronous motor first automatically completes a complete stroke, that is, the lifting sliding seat rotates to the lower limit position and then moves to the upper limit position, so that the first magnet attracts the filter in the brewing cup; then vacuuming and water injection are performed, and the amount of water injection can be selected from the default value or set independently through the touch screen; after the water injection is completed, the synchronous motor automatically rotates, first lowering the filter to the bottom for tea soaking, and the soaking time can be selected from the default value or set through the touch screen, and the filter is raised after the preset soaking time is reached.

[0070] The specific process is: when the filter drops to the lower limit position, the second microswitch is triggered, the synchronous motor stops rotating first, waits for the soaking time, and then rotates in the opposite direction (i.e., raises the filter); when the filter rises to the upper limit position, the first microswitch is triggered, the synchronous motor stops rotating first, if the "down" control signal is not received, the synchronous motor will no longer operate and the tea brewing is completed; at this time, if the user thinks the tea tastes light, he can select the tea brewing button, input the "down" control signal, the filter will drop, and the above movement process will be repeated.

[0071] like Figure 3As shown, in an optional embodiment, the cup cover 23 of the brewing cup includes a cup cover upper shell and a cup cover bottom plate, and the cup cover bottom plate is provided with a water inlet pipe 232, and the water inlet pipe 232 is connected to the cup body 21 of the brewing cup through a through hole 233 of the cup cover bottom plate. When in use, after the tea brewing machine completes vacuuming, the water inlet pipe 232 starts to fill with water, and the water flows into the brewing cup through the through hole 233. In this embodiment, the water inlet pipe 232 is arranged in parallel with the air extraction pipe 231, both are located on the cup cover bottom plate, and share a plurality of through holes 233 to communicate with the brewing cup. This structure makes the cup cover compact and reasonably laid out, and reduces the size of the cup cover.

[0072] The upper and lower surfaces of the cup cover bottom plate are provided with guide slopes, and a plurality of through holes 233 are arranged at the lower part of the guide slopes, so that the injected water flows into the brewing cup along the guide slopes, avoiding water accumulation inside the cup cover.

[0073] like Figure 4 As shown, in an optional embodiment, a condensation water collection port 235 is provided below the bottom plate of the cup cover near one side of the machine body. When the tea maker finishes brewing tea, the bottom of the cup cover will be covered with water vapor. After the cup cover is opened, the water on the cup cover is collected in the condensation water collection port 235 to avoid wetting the tea maker or the table.

[0074] like Figure 3 As shown, in an optional embodiment, the cup lid of the brewing cup is provided with a lid opening mechanism, which includes an elastic button 71, an elastic push rod 72 and a locking member 73. A first spring 74 for providing elasticity is provided below the elastic button 71. The elastic button 71 is provided with an inclined surface, which is in contact with the head end surface of the elastic push rod 72. A second spring 75 for providing elasticity is provided on the side of the elastic push rod 72. When the elastic button 71 is pressed vertically, the elastic push rod 72 moves horizontally under the push of the elastic button 71. When the elastic button 71 is released, the elastic push rod 72 resets.

[0075] The tail end of the elastic push rod 72 is connected to the head end of the lock member 73, and the lock member 73 is connected to the bottom plate of the cup cover through a rotating shaft, and the hook foot at the tail end of the lock member 73 passes through the bottom plate of the cup cover and hooks the slot of the front cover plate 11 of the machine body. Specifically, a connecting rod is provided at the tail end of the elastic push rod 72, and a Y-shaped fork is provided at the head end of the lock member 73. The connecting rod is built into the Y-shaped fork, and the middle part of the lock member 73 is connected to the shaft seat of the bottom plate of the cup cover through a rotating shaft. When the elastic push rod 72 moves horizontally, it pushes the lock member 73 to rotate around the rotating shaft, and the hook foot of the lock member 73 is separated from the slot, unlocking the cup cover 23. When the cup cover 23 is closed, the hook foot of the lock member 73 automatically hooks the slot under the action of the second spring 75, and the cup cover 23 is locked.

[0076] Two strip grooves 721 are provided at the bottom of the elastic push rod 72, which are respectively adapted to the exhaust pipe 231 and the water inlet pipe 232. During installation, the strip grooves 721 are buckled on the two pipes, and the elastic push rod 72 slides on the two pipes, which not only ensures the stable translation of the elastic push rod 72, but also makes the structural layout of the cup cover more reasonable, reduces the internal space occupancy rate of the cup cover 23, and thus reduces the size of the cup cover.

[0077] In an optional embodiment, a water tank 91 is further provided on the side of the machine body. The water outlet of the water tank 91 is located at the bottom. The water outlet is connected to the water inlet pipe 232 through a food-grade plastic tube. The water outlet and the plastic tube are hidden inside the machine body, making the appearance of the tea maker more neat and beautiful.

[0078] In an optional embodiment, a touch screen 8 is provided on one side of the front cover 11 of the tea maker, and the tea maker is operated through the touch screen 8, such as raising and lowering the filter, setting the tea brewing time, the amount of water injected, the discharge of tea, etc.

[0079] In an optional embodiment, a sewage tray 93 for collecting sewage is provided at the bottom of the machine body 1 below the tea cup 92 to prevent tea from overflowing from the tea cup and contaminating the tabletop due to improper operation when using the tea maker.

[0080] In an optional embodiment, a working indicator light is provided on the front cover plate 11 of the tea maker, so that the user can understand the working status of the tea maker conveniently.

[0081] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automatic lifting vacuum tea maker, comprising a machine body and a brewing cup assembly, wherein the brewing cup assembly comprises a brewing cup and a filter net built into the brewing cup, characterized in that: A vacuum pumping component is provided in the body, the vacuum pumping component is connected to the brewing cup and performs vacuum treatment on the brewing cup, and an automatic lifting component is also provided in the body, the automatic lifting component is magnetically connected to the filter screen and drives the filter screen to move up and down in the brewing cup; The cup cover of the brewing cup comprises a cup cover upper shell and a cup cover bottom plate, the cup cover bottom plate is provided with a parallel air extraction pipeline and a water inlet pipeline, the cup cover bottom plate is provided with a plurality of through holes, the air extraction pipeline is connected to the vacuum pumping component, and the air extraction pipeline and the water inlet pipeline are both connected to the cup body of the brewing cup through the through holes; The bottom plate of the cup cover is provided with a cover opening mechanism, which includes an elastic button, an elastic push rod and a locking member connected in sequence, a first spring is provided below the elastic button, the elastic button is provided with an inclined surface, the inclined surface is in contact with the head end surface of the elastic push rod, and a second spring is provided on the side of the elastic push rod; when the elastic button is pressed vertically, the elastic push rod moves horizontally under the push of the elastic button, and when the elastic button is released, the elastic push rod is reset; The bottom of the elastic push rod is provided with two strip grooves, which are respectively adapted to the air extraction pipe and the water inlet pipe. During installation, the strip grooves are buckled on the two pipes, and the elastic push rod slides on the two pipes.

2. The automatic lifting vacuum tea maker according to claim 1, characterized in that: The vacuum pump assembly includes a vacuum pump and a three-way solenoid valve, wherein the air inlet of the vacuum pump is connected to the first port of the three-way solenoid valve, the second port of the three-way solenoid valve is connected to the brewing cup, the air outlet of the vacuum pump is connected to the atmosphere and is used for exhaust, and the third port of the three-way solenoid valve is connected to the atmosphere and is used for pressure relief.

3. The automatic lifting vacuum tea maker according to claim 2, characterized in that: The air extraction pipeline is connected to the second port of the three-way solenoid valve.

4. The automatic lifting vacuum tea maker according to claim 3, characterized in that: A cup cover silicone ring is provided around the lower surface of the cup cover bottom plate, and a cup mouth silicone ring is provided around the outer periphery of the cup mouth of the cup body. When the cup cover is closed, the cup cover silicone ring is in close contact with the cup mouth silicone ring.

5. The automatic lifting vacuum tea brewing machine according to claim 1, characterized in that: The automatic lifting assembly includes a synchronous motor, a rotating rod, a lifting sliding seat and a bracket plate with a sliding groove. The synchronous motor is connected to the rotating rod and drives the rotating rod to swing back and forth. The rotating rod is connected to the lifting sliding seat and drives the lifting sliding seat to move up and down in the sliding groove.

6. The automatic lifting vacuum tea brewing machine according to claim 5, characterized in that: The automatic lifting assembly also includes a first micro switch and a second micro switch, wherein the first micro switch and the second micro switch are respectively located at the beginning and the end of the swing track of the rotating rod, and the two micro switches are connected to the control panel of the vacuum tea maker.

7. The automatic lifting vacuum tea brewing machine according to claim 5, characterized in that: The clamping foot of the lifting sliding seat is connected to the first magnet, and the first magnet is magnetically connected to the filter screen.

8. The automatic lifting vacuum tea brewing machine according to claim 1, characterized in that: The upper and lower surfaces of the cup cover bottom plate are provided with flow guide slopes.

9. The automatic lifting vacuum tea brewing machine according to claim 1, characterized in that: The hook foot of the locking member passes through the cup cover bottom plate of the cup cover and hooks the slot of the machine body.

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