Automatic tea basket lifting mechanism

Abstract

The utility model discloses an automatic tea basket lifting mechanism which comprises a lifting pipe, a driving motor and a tea basket arranged on the lifting pipe in a sleeved mode, a lead screw and a nut arranged on the lead screw in a sleeved mode are arranged in the lifting pipe, the driving motor is connected with the driving lead screw, a driving magnet is arranged on the nut, and a driven magnet corresponding to the nut is arranged on the tea basket. The tea basket and the nut are attracted and matched on the outer wall of the lifting pipe through the driving magnet and the driven magnet; an induction plate parallel to the lead screw is further arranged in the lifting pipe, an induction contact piece corresponding to the induction plate is arranged on the nut, and the induction contact piece reciprocates on the induction plate along with the nut and generates an induction signal for detecting the position of the tea basket on the lifting pipe. The upper end of the screw rod is freely arranged, screw rod clamping failure caused by three-point fixing of the screw rod is avoided, in addition, the sensing plate arranged in the length direction of the screw rod is matched with the sensing contact piece synchronously moving on the nut, the position of the tea strainer on the lifting pipe can be recognized and confirmed through sensing signals, and stability and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent tea brewing, in particular to an automatic lifting mechanism for a tea basket. Background Art

[0002] Brewing tea has a long history, which has driven the development of tea sets, tea ceremony, tea art, and tea culture. The teapot is an important tool for brewing tea. The famous one is the purple clay teapot. Teapots have a very long history and there are many types. With the development of science and technology, teapots have also undergone many changes. They can be heated by electricity and other methods, and more and more temperature control devices are integrated. The quality and taste of the beverage are not only related to the quality of the tea, but also to the temperature, concentration, and residue of the beverage. The higher the water temperature and the longer the brewing time, the greater the solubility and the thicker the tea soup; on the contrary, the lower the water temperature and the shorter the brewing time, the smaller the solubility and the lighter the tea soup.

[0003] With the continuous development and progress of science and technology, people have developed teapots that can automatically control parameters such as concentration, temperature, and brewing time according to the type of beverage, which greatly improves the user experience. For example, the applicant disclosed a smart teapot in the Chinese utility model patent with announcement number CN211511327U, including a teapot body, a teapot cover arranged on the teapot body, a mounting slot arranged in the teapot cover, a main control circuit board and a battery arranged in the mounting slot, a metal tube body extending from the teapot cover to the teapot body, a lifting tea strainer sleeved on the metal tube body, a lifting screw rod arranged in the metal tube body, a lifting drive motor arranged in the mounting slot, the lifting drive motor connected to the main control circuit board, the lifting drive motor drives the lifting screw rod, and the lifting screw rod drives the lifting tea strainer to move up and down in the metal tube body; the tea brewing time is set by controlling the buttons, the constant temperature of the tea water is controlled, and the concentration of the tea water can be judged by data such as light intensity and color, so that the smart teapot can realize automatic tea brewing and ensure the quality and taste of the tea water.

[0004] However, in production practice, it is found that the existing tea strainer lifting mechanism has at least the following defects: first, it is driven and controlled by a servo motor, which is difficult to install due to its large size; second, when the motor drives one end of the screw and the other end of the screw is fixed, the screw coaxiality has deviations, which easily causes the nut to become stuck and fail at a certain position of the screw. Therefore, the existing tea strainer lifting mechanism needs to be further optimized. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automatic lifting mechanism for a tea basket, aiming to solve the technical problems that the existing tea strainer lifting mechanism is difficult to install and easy to fail.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] One aspect of the utility model provides an automatic lifting mechanism for a tea basket, comprising a lifting tube, a driving motor, and a tea basket sleeved on the lifting tube, wherein a screw rod and a nut sleeved on the screw rod are arranged in the lifting tube, the driving motor is connected to drive the screw rod, an active magnet is arranged on the nut, and a driven magnet is arranged on the tea basket corresponding to the nut, the tea basket and the nut are adsorbed and matched between the outer wall of the lifting tube through the active magnet and the driven magnet; an induction plate is also arranged in parallel with the screw rod in the lifting tube, and an induction contact piece is arranged on the nut corresponding to the induction plate, the induction contact piece reciprocates on the induction plate with the nut and generates an induction signal for detecting the position of the tea basket on the lifting tube.

[0008] Furthermore, a lifting hole is provided at the center of the tea basket, and the plurality of driven magnets are evenly arranged around the lifting hole and are sleeved on the lifting tube through the lifting hole.

[0009] Optionally, an upper mesh plate and a lower mesh plate are provided at the upper and lower ends of the tea basket, and a plurality of rib plates are further provided between the outer peripheral wall of the tea basket and the lifting hole.

[0010] Optionally, a mounting groove is provided in the tea basket around the lifting hole, a plurality of driven magnets are placed in the mounting groove, and a sealing rubber ring is provided at the opening position of the mounting groove.

[0011] Furthermore, the drive motor is arranged at the lower end of the lifting tube through a motor mounting seat, the drive motor is connected to drive the lower end of the screw rod, the nut is installed in a lifting mounting seat, a plurality of active magnets are arranged on the lifting mounting seat, and the screw rod is driven by the nut to drive the lifting mounting seat to move reciprocatingly up and down.

[0012] Furthermore, a transmission mounting seat is provided at the upper end of the motor mounting seat, and a transmission shaft is provided in the transmission mounting seat through a transmission bearing, and a first coupling and a second coupling are respectively provided at the upper and lower ends of the transmission shaft, the lower end of the transmission shaft is connected to the output end of the driving motor through the first coupling, and the upper end of the transmission shaft is connected to the lower end of the screw rod through the second coupling.

[0013] Optionally, the upper end of the motor mounting seat and the transmission mounting seat can be fixedly connected by means of snaps, screws, etc.

[0014] Furthermore, an upper end seat is provided at the upper end of the lifting tube, the upper end of the induction plate is fixed to the upper end seat, and the lower end of the induction plate extends to the bottom of the motor mounting seat.

[0015] Furthermore, a guide rod is also arranged in the lifting tube, the lower end of the guide rod is arranged on the transmission mounting seat, the guide rod passes through the lifting mounting seat, and the upper end of the guide rod is fixed to the upper end seat.

[0016] Furthermore, the upper end of the screw rod is freely arranged and is located in the through hole in the upper end seat.

[0017] Furthermore, at least one group of elastic contact pins are provided at the free end of the sensing contact sheet, and the elastic contact pins are in contact with and cooperate with the conductive layer on the sensing plate.

[0018] Beneficial effects of the utility model:

[0019] The automatic lifting mechanism of the tea basket of the utility model can freely set the upper end of the screw rod, thereby avoiding the screw rod being stuck and failing due to the three-point fixation of the screw rod. In addition, the induction plate arranged along the length direction of the screw rod cooperates with the induction contact piece arranged on the nut and moves synchronously. The induction contact piece moves synchronously with the induction plate to generate an induction signal. The position of the tea strainer in the lifting tube can be identified and confirmed through the induction signal. The structure is simple and the detection method is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a top view of the structure of the automatic lifting mechanism of the tea basket of the utility model;

[0022] Figure 2 for Figure 1 The structural diagram is cut along the AA line;

[0023] Figure 3 for Figure 1 The structure diagram is cut along the BB line;

[0024] Figure 4 This is a three-dimensional structural diagram of the automatic lifting mechanism of the tea basket of the utility model;

[0025] Figure 5 The three-dimensional decomposition structure of the automatic lifting mechanism of the tea basket of the utility model Figure 1 ;

[0026] Figure 6 The three-dimensional decomposition structure of the automatic lifting mechanism of the tea basket of the utility model Figure 2 ;

[0027] In the figure, 1-lifting tube, 2-tea basket, 3-net plate, 4-lower net plate, 5-sealing rubber ring, 6-lifting hole, 7-rib plate, 8-driven magnet, 9-driving motor, 10-motor mounting seat, 11-first coupling member, 12-transmission shaft, 13-transmission bearing, 14-transmission mounting seat, 15-second coupling member, 16-screw rod, 17-nut, 18-lifting mounting seat, 19-active magnet, 20-guide rod, 21-upper end seat, 22-sensing plate, 23-sensing contact piece, 24-elastic contact foot. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Example 1

[0030] like Figure 1-6 As shown, the embodiment of the utility model provides an automatic lifting mechanism for a tea basket, comprising a lifting tube 1, a driving motor 9, and a tea basket 2 sleeved on the lifting tube 1. A screw rod 16 and a nut 17 sleeved on the screw rod 16 are arranged in the lifting tube 1. The driving motor 9 is connected to drive the screw rod 16. An active magnet 19 is arranged on the nut 17. A driven magnet 8 is arranged on the tea basket 2 corresponding to the nut 17. The tea basket 2 and the nut 17 are adsorbed and matched between the outer wall of the lifting tube 1 through the active magnet 19 and the driven magnet 8. An induction plate 22 is also arranged in parallel with the screw rod 16 in the lifting tube 1. An induction contact piece 23 is arranged on the nut 17 corresponding to the induction plate 22. The induction contact piece 23 moves back and forth on the induction plate 22 with the nut 17 and generates an induction signal for detecting the position of the tea basket 2 in the lifting tube 1. The lifting and lowering tea basket is driven by magnet adsorption on the lifting tube, which avoids the sealing problem of electrical components. The moving position of the tea basket 2 can be detected by the induction signal, avoiding the use of a servo motor, because the servo motor is usually large and expensive, and the height of the tea basket 2 calculated by the servo motor speed combined with the screw pitch has a large error. Figure 4 As shown, a lifting hole 6 is provided at the center of the tea basket 2 , and the plurality of driven magnets 8 are evenly arranged around the lifting hole 6 , and are sleeved on the lifting tube 1 through the lifting hole 6 .

[0031] Optionally, an upper mesh plate 3 and a lower mesh plate 4 are provided at the upper and lower ends of the tea basket 2, and a plurality of rib plates 7 are provided between the outer peripheral wall of the tea basket 2 and the lifting hole 6.

[0032] Optionally, a mounting groove is provided in the tea basket 2 around the lifting hole 6, a plurality of driven magnets 8 are placed in the mounting groove, and a sealing rubber ring 5 is provided at the opening position of the mounting groove.

[0033] like Figure 2 , 3 As shown, the driving motor 9 is arranged at the lower end of the lifting tube 1 through a motor mounting seat 10, the driving motor 9 is connected to drive the lower end of the screw rod 16, the nut 17 is installed in a lifting mounting seat 18, a plurality of active magnets 19 are arranged on the lifting mounting seat 18, and the screw rod 16 is driven by the nut 17 to drive the lifting mounting seat 18 to move up and down in the lifting tube 1.

[0034] like Figure 5 , 6 As shown, a transmission mounting seat 14 is arranged at the upper end of the motor mounting seat 10, and a transmission shaft 12 is arranged in the transmission mounting seat 14 through a transmission bearing 13. The first coupling member 11 and the second coupling member 15 are respectively arranged at the upper and lower ends of the transmission shaft 12. The lower end of the transmission shaft 12 is connected to the output end of the driving motor 9 through the first coupling member 11, and the upper end of the transmission shaft 12 is connected to the lower end of the screw rod 16 through the second coupling member 15.

[0035] Optionally, the upper end of the motor mounting seat 10 and the transmission mounting seat 14 can be fixedly connected by means of buckles, screws, etc.

[0036] like Figure 2 , 3 As shown, the upper end of the lifting tube 1 is provided with an upper end seat 21, the upper end of the induction plate 22 is fixed to the upper end seat 21, and the lower end of the induction plate 22 extends to the bottom of the motor mounting seat 10. Specifically, the upper end of the lifting tube 1 is sealed, and the upper end seat 21 is arranged at the top of the inner cavity of the lifting tube 1.

[0037] Optionally, a guide rod 20 is further provided in the lifting tube 1 , the lower end of the guide rod 20 is provided on the transmission mounting seat 14 , the guide rod 20 passes through the lifting mounting seat 18 , and the upper end of the guide rod 20 is fixed on the upper end seat 21 .

[0038] Specifically, the upper end of the screw rod 16 is freely arranged and is located in the through hole in the upper end seat 21. Since the screw rod 16 has a slender structure and a small size and needs to be processed on the slender structure to form a threaded structure, due to the limitation of processing conditions, the screw rod 16 is unlikely to have a high straightness, that is, the screw rod 16 may not be completely straight. The upper end is freely arranged, that is, the screw rod 16 is always fixed at two points, the lower end and the nut position, in the lifting tube 1, to avoid the clamping phenomenon caused by three-point fixation.

[0039] like Figure 6As shown, the free end of the sensing contact piece is provided with at least one group of elastic contact pins, and the elastic contact pins are in contact with the conductive layer on the sensing plate. The sensing plate may be a metal diaphragm that is continuously and evenly distributed along the length direction of the lifting tube, such as a copper-clad film. When the sensing contact piece slides on the sensing plate, the relative capacitance changes, thereby generating a sensing signal. In addition, the sensing plate may also be two sections of parallel distributed resistance wires. When the sensing contact piece slides directly on the two resistance wires, the resistance value output by the two resistance wires changes, thereby generating a sensing signal. The automatic lifting mechanism of the tea basket of the utility model is freely set at the upper end of the screw rod, thereby avoiding the screw rod being fixed at three points and causing the screw rod to fail. In addition, the sensing plate set along the length direction of the screw rod cooperates with the sensing contact piece set on the nut to move synchronously. The sensing contact piece moves synchronously with the sensing plate to generate a sensing signal. The sensing signal can identify and confirm the position of the tea strainer in the lifting tube. The structure is simple and the detection method is stable and reliable.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An automatic lifting mechanism for a tea basket, characterized in that: The invention comprises a lifting tube, a driving motor, and a tea basket sleeved on the lifting tube, wherein a screw rod and a nut sleeved on the screw rod are arranged in the lifting tube, the driving motor is connected to drive the screw rod, an active magnet is arranged on the nut, a driven magnet is arranged on the tea basket corresponding to the nut, the tea basket and the nut are adsorbed and matched between the outer wall of the lifting tube through the active magnet and the driven magnet; an induction plate is also arranged in parallel with the screw rod in the lifting tube, and an induction contact piece is arranged on the nut corresponding to the induction plate, the induction contact piece moves back and forth on the induction plate with the nut and generates an induction signal for detecting the position of the tea basket on the lifting tube.

2. The automatic lifting mechanism for a tea basket according to claim 1, characterized in that: A lifting hole is arranged at the center of the tea basket, and the plurality of driven magnets are evenly arranged around the lifting hole and are sleeved on the lifting tube through the lifting hole.

3. The automatic lifting mechanism for tea basket according to claim 2 is characterized in that: The upper and lower ends of the tea basket are provided with an upper mesh plate and a lower mesh plate, and a plurality of rib plates are further provided between the outer peripheral wall of the tea basket and the lifting hole.

4. The automatic lifting mechanism for the tea basket according to claim 3 is characterized in that: A mounting groove is arranged in the tea basket around the lifting hole, a plurality of driven magnets are placed in the mounting groove, and a sealing rubber ring is arranged at the opening position of the mounting groove.

5. The automatic lifting mechanism for a tea basket according to claim 1, characterized in that: The driving motor is arranged at the lower end of the lifting tube through a motor mounting seat, the driving motor is connected to drive the lower end of the screw rod, the nut is installed in a lifting mounting seat, a plurality of active magnets are arranged on the lifting mounting seat, and the screw rod is driven by the nut to drive the lifting mounting seat to move reciprocatingly up and down.

6. The automatic lifting mechanism for the tea basket according to claim 5, characterized in that: A transmission mounting seat is arranged at the upper end of the motor mounting seat, a transmission shaft is arranged in the transmission mounting seat through a transmission bearing, a first coupling member and a second coupling member are arranged at the upper and lower ends of the transmission shaft respectively, the lower end of the transmission shaft is connected to the output end of the driving motor through the first coupling member, and the upper end of the transmission shaft is connected to the lower end of the screw rod through the second coupling member.

7. The automatic lifting mechanism for a tea basket according to claim 6, characterized in that: An upper end seat is arranged at the upper end of the lifting tube, the upper end of the induction plate is fixed on the upper end seat, and the lower end of the induction plate extends to the bottom of the motor mounting seat.

8. The automatic lifting mechanism for a tea basket according to claim 7, characterized in that: A guide rod is also arranged in the lifting tube, the lower end of the guide rod is arranged on the transmission mounting seat, the guide rod passes through the lifting mounting seat, and the upper end of the guide rod is fixed on the upper end seat.

9. The automatic lifting mechanism for a tea basket according to claim 8, characterized in that: The upper end of the screw rod is freely arranged and is located in the through hole in the upper end seat.

10. The automatic lifting mechanism for a tea basket according to claim 1, characterized in that: The free end of the sensing contact sheet is provided with at least one group of elastic contact pins, and the elastic contact pins are in contact with and cooperate with the conductive layer on the sensing plate.

Images