CN110326972B

CN110326972B - Automatic clamping and aligning device for water receiving cup of electric kettle and control method thereof

Info

Publication number: CN110326972B
Application number: CN201910513672.5A
Authority: CN
Inventors: 窦建平; 王帅; 孙琪; 赵霞
Original assignee: Southeast University
Current assignee: Southeast University
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2021-08-10
Anticipated expiration: 2039-06-14
Also published as: CN110326972A

Abstract

The invention discloses an automatic clamping and aligning device for a water receiving cup of an electric kettle and a control method thereof, wherein the automatic clamping and aligning device comprises a bottom plate, a box body and a liftable platform, the bottom plate, the box body and the liftable platform are sequentially arranged from bottom to top, the box body can horizontally move along the bottom plate, the liftable platform can move along with the box body and is used for placing the water cup, and the liftable platform is provided with a clamping device for clamping the water receiving cup, a pressure sensor for detecting whether the water receiving cup is placed and sending a sensing signal and a detection device for measuring the height of the water receiving cup and the height of a water level; the controller is arranged in the box body and is respectively electrically connected with the platform, the clamping device, the pressure sensor and the detection device, the controller controls the platform to ascend and descend to a specified position according to a sensing signal sent by the pressure sensor, and the clamping device is controlled to clamp or loosen the water receiving cup and the detection device to measure. When the water receiving cup is used for receiving water, a user only needs to place the water receiving cup on the platform, and the controller can control the clamping device to automatically finish clamping alignment, so that the potential safety hazard of people during water receiving is eliminated.

Description

Automatic clamping and aligning device for water receiving cup of electric kettle and control method thereof

Technical Field

The invention relates to a water receiving cup clamping device, in particular to an automatic clamping and aligning device for a water receiving cup of an electric kettle and a control method thereof.

Background

The existing household electric kettle (bottle) is characterized in that a water outlet switch is unlocked manually, a water cup is used for receiving water, the water cup is aligned with a water outlet of the electric kettle by human eyes, whether the water cup is full of water is observed by the human eyes, and after a certain amount of water is received, water is closed manually by a human hand. The disadvantages of this process are: people are required to align the cup mouth with the water outlet, and as some water outlets of the electronic thermos flasks are shielded by sight lines, users (especially old people and children) can align the cup mouth with the water outlet, so that hot water overflows and even hands are scalded; in addition, when the existing electric kettle (bottle) with the sight line sheltered discharges water, the observation of the water level in the water cup is inconvenient, and sometimes the water overflows the water cup and causes harm to human bodies.

The existing technical scheme of the electric kettle (bottle) is to invent and improve the electric kettle, has great improvement difficulty, is not suitable for the existing household electric kettle in common families, and has narrow application range.

Therefore, it is desired to solve the above problems.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide an automatic clamping and aligning device for a water receiving cup of an electric kettle, which can effectively solve the potential safety hazard problem existing in the existing household electric kettle during water receiving.

A second purpose is to provide a control method for the pushing of the automatic clamping and aligning device of the water receiving cup suitable for the electric kettle.

The technical scheme is as follows: in order to achieve the above purpose, the invention discloses an automatic clamping and aligning device for a water receiving cup of an electric kettle, which comprises a bottom plate, a box body and a liftable platform, wherein the bottom plate, the box body and the liftable platform are sequentially arranged from bottom to top; the water cup is characterized in that a controller which is electrically connected with the platform, the clamping device, the detection device and the pressure sensor is arranged in the box body, the controller controls the platform to lift to a specified position according to a sensing signal sent by the pressure sensor, and controls the clamping device to clamp or loosen the water cup and controls the detection device to measure.

The platform is connected with the box body through at least 3 lifting screw rods uniformly distributed on the platform, a central screw rod is arranged on the box body, and the end part of the central screw rod is connected with an output shaft of a motor positioned in the box body; the central screw rod is connected with a lifting screw rod through a belt wheel transmission assembly, and the lifting screw rod is connected with the rest lifting screw rods through the belt wheel transmission assembly; the motor is started to drive the central screw rod to rotate, and the central screw rod drives the lifting screw rod to rotate so as to drive the platform to lift up and down.

Preferably, clamping device includes the spring beam of 3 at least equipartitions that are connected with central lead screw one end and the slider that is connected with each spring beam and can follow platform radial movement, and the motor starts to drive central lead screw and rotates, and the platform goes up and down to pull to the slider simultaneously through the spring beam and realizes centre gripping water receiving cup along platform radial movement.

Furthermore, detection device is including setting up the guide arm on the platform perpendicularly, wear to establish and can follow the gliding magnetic metal piece of guide arm on the guide arm, be located the electromagnet module of the adsorbable magnetic metal piece in guide arm top, be used for measuring the first ultrasonic wave module of magnetic metal piece height and be used for measuring the second ultrasonic wave module of water level height, electromagnet module, first ultrasonic wave module and second ultrasonic wave module are connected with the controller electricity, the controller is according to the perception signal control electromagnet module power loss that pressure sensor transmitted, the magnetic metal piece slides to water cup department along the guide arm, first ultrasonic wave module highly conveys the controller with the magnetic metal piece, second ultrasonic wave module conveys the water level height to the controller.

Further, the device also comprises a buzzer positioned in the box body, and the buzzer is connected with the controller.

Preferably, the bottom plate comprises a fixed plate, and an X-direction side plate and a Y-direction side plate which are formed by bending the fixed plate, an X-direction adjusting bolt is connected between the X-direction side plate and the box body, and a Y-direction adjusting bolt is connected between the Y-direction side plate and the box body.

Moreover, the electric kettle further comprises a relay module for controlling the water outlet of the electric kettle to stop water, and the relay module is connected with the controller.

The invention relates to a control method of an automatic clamping and aligning device for a water receiving cup of an electric kettle, which comprises the following steps: the pressure sensor transmits a pressure signal detected in real time to the controller, and the controller controls the electromagnet module to keep an electrified state to adsorb the magnetic metal sheet when the pressure is not increased; when the pressure is increased, the controller controls the motor to rotate to drive the central screw rod to rotate and descend and the lifting screw rod to rotate and ascend, so as to drive the platform to ascend to a specified position and simultaneously drive the spring rod to move downwards, and the spring rod drives the sliding block to slide towards the center of the platform so as to clamp the water receiving cup; the controller controls the buzzer module to send out a water outlet prompting signal and can control the relay module to act to discharge water from the water outlet; the second ultrasonic module transmits real-time water level height information to the controller, when the water level is increased, the controller controls the electromagnet module to lose power, the magnetic metal sheet slides downwards to the position of the cup opening of the water receiving cup along the guide rod, the first ultrasonic module measures the height of the magnetic metal sheet to obtain the height of the water receiving cup and transmits the height of the water receiving cup to the controller, the controller sets a water level early warning value according to the height of the water receiving cup, and when the real-time water level is higher than the early warning value, the controller controls the buzzer module to send out a signal for prompting water outlet stopping, and can control the relay module to act to stop water outlet; when the pressure is reduced, the controller controls the electromagnet module to be electrified to adsorb a magnetic metal sheet, the controller controls the motor to rotate in the opposite direction to drive the central screw rod to rotate and ascend and the lifting screw rod to rotate and descend, the platform is driven to descend to the initial position, meanwhile, the spring rod is driven to move upwards, and the spring rod drives the sliding block to slide away from the center of the platform, so that the water receiving cup is loosened.

Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:

1. according to the invention, the water receiving cup is placed on the lifting platform, the platform can drive the water receiving cup to lift to a specified position, and the clamping device on the lifting platform is utilized to clamp the water cup, so that potential safety hazards caused by manual operation are avoided;

2. the invention utilizes the combined design of the spring rod and the movable sliding block to clamp the water receiving cup, and meanwhile, the elasticity of the spring can effectively prevent the cup from being crushed due to too large pressing force;

3. according to the invention, the height and the water level height of the water receiving cup can be accurately obtained by utilizing the combined structure of the guide rod, the ultrasonic wave module, the electromagnet module and the magnetic metal sheet, namely, when the electromagnet module is powered off, the magnetic metal sheet slides down to the position of the water receiving cup along the guide rod, the first ultrasonic wave module measures the height of the magnetic metal sheet to obtain the height of the water receiving cup, and the second ultrasonic wave module measures the water level height;

4. according to the automatic clamping and aligning device for the water receiving cup, when the water receiving cup is used for receiving water, a user only needs to place the water receiving cup on the platform, the controller can control the clamping device to automatically complete clamping and aligning, alarm when the water level reaches an early warning value is monitored in real time, potential safety hazards of people during water receiving are eliminated, and the automatic clamping and aligning device has the advantage of high automation degree.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a platform according to the present invention;

FIG. 3 is a schematic view of the mounting of a first ultrasonic module and a second ultrasonic module of the present invention;

FIG. 4 is a schematic view of a clamping device according to the present invention;

FIG. 5 is a partial schematic view of the present invention with the cover removed;

FIG. 6 is a schematic view of the transmission of the motor of the present invention;

FIG. 7 is a schematic diagram of the transmission of the motor, the central lead screw and the elevating lead screw of the present invention;

FIG. 8 is an electrical connection diagram of the present invention;

FIG. 9 is a control flow chart of the present invention.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

As shown in figure 1, the automatic clamping and aligning device for the water receiving cup of the electric kettle comprises a bottom plate 1, a box body 2, a platform 3, a pressure sensor 4, a clamping device, a detection device, a controller 5, a buzzer 16 and a relay module 17. The buzzer 16 is positioned in the box body 2, the buzzer 16 is electrically connected with the controller 5, and the controller 5 controls the alarm for over-high water level; the relay module 17 is used for controlling the water outlet of the electric kettle to stop water, and the relay module 17 is electrically connected with the controller 5.

As shown in fig. 5, the bottom plate 1, the box 2 and the platform 3 are sequentially arranged from bottom to top, and the box 2 can drive the platform 3 to horizontally move along the bottom plate 1. The bottom plate 1 comprises a fixing plate 101, an X-direction side plate 102 and a Y-direction side plate 103, wherein the X-direction side plate 102 and the Y-direction side plate 103 are formed by bending the fixing plate 101. An X-direction adjusting bolt 104 is connected between the X-direction side plate 102 and the box body 2, a Y-direction adjusting bolt 105 is connected between the Y-direction side plate 103 and the box body 2, and the box body 2 is driven to move along the X direction and the Y direction of the fixing plate by respectively adjusting the X-direction adjusting bolt 104 and the Y-direction adjusting bolt 105. Clamping device, pressure sensor 4 and detection device all set up on platform 3, and wherein clamping device is used for the centre gripping water receiving cup, and pressure sensor 4 is used for detecting whether the water receiving cup is put on and sends the perception signal, and detection device is used for measuring water cup height and water level height. The controller 5 is located the box 2, is connected with platform 3, clamping device, pressure sensor 4 and detection device mutually electricity respectively, and this controller 5 is according to the perception signal control platform 3 lift to the assigned position of pressure sensor 4 transmission, and control clamping device presss from both sides tightly or unclamps the water cup and control detection device and measure.

As shown in fig. 2 and 4, the box body 2 includes a box body box and a box body cover, at least 3 lifting screws 6 are uniformly distributed between the platform 3 and the box body cover, a central screw 7 is arranged at the central position of the box body cover, a belt wheel is arranged on the central screw 7, the central screw 7 is connected with an output shaft of a motor 8 located in the box body box, and the motor 8 can drive the central screw 7 to rotate and move up and down relative to the box body cover. One of the lifting screws 6 is selected as a driving lifting screw, 2 belt wheels sequentially penetrate through the driving lifting screw, 1 belt wheel penetrates through the other lifting screws, the belt wheels on all the lifting screws 6 are in transmission connection through a synchronous belt, and the belt wheels on the driving lifting screw are in transmission connection with the belt wheels on the central screw 7 through a synchronous belt. A motor 8 is started to drive a central screw 7 to rotate, the central screw 7 drives a driving lifting screw to rotate through a belt pulley and a synchronous belt, and the driving lifting screw drives other lifting screws to rotate through the belt pulley and the synchronous belt on the driving lifting screw and moves up and down relative to a box cover, so that a platform 3 is driven to lift up and down. When the motor rotates forwards, the central screw rod rotates to drive the lifting screw rod to rotate so as to drive the platform to ascend, and when the motor rotates backwards, the central screw rod rotates to drive the lifting screw rod to rotate so as to drive the platform to descend. The motor of the invention can be a 42BYGH34 stepping motor and a ULN2803 chip to form a driving motor. The rotating speed of the motor is set to be 600r/min, the lead of the lead screw is 2mm, the belt wheel connected with the central lead screw is 20 teeth of a 2GT type synchronous belt wheel, the inner hole is 8mm, and the belt width is 6 mm; the belt wheel provided with the lifting screw rod is a 2GT type synchronous belt wheel with 40 teeth, an inner hole is 8mm, and the belt width is 6 mm; the synchronous bandwidth for the transmission of the central screw rod is 6mm, and the length is 200 mm; the width of the synchronous belt for the lifting screw transmission is 6mm, and the length of the synchronous belt is 520mm, as shown in figures 6 and 7.

The clamping device comprises at least 3 spring rods 9 and sliding blocks 10 which correspond to the spring rods one to one, wherein one end of each spring rod 9 is connected with the central lead screw 7, and the other end of each spring rod 9 is connected with the corresponding sliding block 10. The platform is provided with a notch 18 which is convenient for the sliding of the sliding block 10 along the radial direction, two sides of the notch 18 of the platform are respectively provided with a guide plate 19, and the side edge of the guide plate 19 and the upper surface of the platform form a track for the sliding block 10 to move. The slider 10 includes a lower slider 20 and an upper slider 21 having an i-shaped cross section, wherein the lower slider 20 has a width greater than that of the upper slider 21, and the lower slider 20 slides along a rail. A motor 8 is started to drive a central lead screw 7 to rotate, meanwhile, a sliding block 10 is pulled by a spring rod 9 to move along the radial direction of a platform to clamp or loosen a water receiving cup, when the motor rotates forwards, the spring rod 9 moves downwards to pull the sliding block 10 to move towards the center of the platform to clamp the water receiving cup, and when the motor rotates backwards, the spring rod 9 moves upwards to pull the sliding block 10 away from the center of the platform to loosen the water receiving cup.

The detection device comprises a guide rod 11, a magnetic metal sheet 12, an electromagnet module 13, a first ultrasonic module 14 and a second ultrasonic module 15. The magnetic metal sheet 12 is inserted into the guide bar 11 and can slide up and down along the guide bar 11. The electromagnet module 13 is located on the top of the cutter bar 11, the electromagnet module 13 has a magnetic force adsorbable magnetic metal sheet 12 in the power-on state, and the electromagnet module 12 cannot adsorb the magnetic metal sheet 12 when the electromagnet module loses the magnetic force in the power-off state. As shown in fig. 3, the first ultrasonic module 14 and the second ultrasonic module 15 are both located above the water receiving cup, and may be disposed at a water outlet of the electric kettle, and may be specifically disposed according to different electric kettles. The electromagnet module 13, the first ultrasonic module 14, and the second ultrasonic module 15 are electrically connected to the controller 5. When the water receiving cup is not placed on the platform, the pressure value of the pressure sensor is not increased, the controller 5 controls the electromagnet module 13 to keep the electrified state, magnetic force is generated to adsorb the magnetic metal sheet 12, and the current height of the magnetic metal sheet 12 measured by the first ultrasonic module 14 is the initial height; after the water receiving cup is placed on the platform, the pressure value of the pressure sensor is increased, the controller 5 controls the electromagnet module 13 to lose power according to the sensing signal transmitted by the pressure sensor 4, the electromagnet module 13 loses magnetic force and cannot adsorb the magnetic metal sheet 12, the magnetic metal sheet 12 slides to the position of the water receiving cup along the guide rod 11, and the current height of the magnetic metal sheet 12 measured by the first ultrasonic module 14 is the height of the water receiving cup and is transmitted to the controller. After water is discharged from the water outlet, the second ultrasonic module 15 can transmit the real-time water level height in the water receiving cup to the controller.

As shown in fig. 8, the pressure sensor module of the present invention is an FSR402 resistive film pressure sensor, and the first ultrasonic module 14 and the second ultrasonic module 15 can be HC-SR04 ultrasonic ranging modules, which can provide a 2-400cm non-contact distance sensing function. The electromagnet module 13 can be selected as a direct current sucker type electromagnet module DC5V micro digital signal electromagnet sensor module. The controller can be a single chip microcomputer with the model of STC89C52, and the single chip microcomputer comprises a buzzer module. The relay module can select a relay with the model number of G5Q-1-DC5 and is driven by 5v direct current.

As shown in fig. 9, the present invention relates to a method for controlling an automatic clamping and aligning device for a water receiving cup of an electric kettle, comprising the following steps: the pressure sensor transmits a pressure signal detected in real time to the controller, and the controller controls the electromagnet module to keep an electrified state to adsorb the magnetic metal sheet when the pressure is not increased; when the pressure is increased, the controller controls the motor to rotate to drive the central screw rod to rotate and descend and the lifting screw rod to rotate and ascend, so as to drive the platform to ascend to a specified position and simultaneously drive the spring rod to move downwards, and the spring rod drives the sliding block to slide towards the center of the platform so as to clamp the water receiving cup; the controller controls the buzzer module to send out a water outlet prompting signal and can control the relay module to act to discharge water from the water outlet; the second ultrasonic module transmits real-time water level height information to the controller, when the water level is increased, the controller controls the electromagnet module to lose power, the magnetic metal sheet slides downwards to the position of the cup opening of the water receiving cup along the guide rod, the first ultrasonic module measures the height of the magnetic metal sheet to obtain the height of the water receiving cup and transmits the height of the water receiving cup to the controller, the controller sets a water level early warning value according to the height of the water receiving cup, and when the real-time water level is higher than the early warning value, the controller controls the buzzer module to send out a signal for prompting water outlet stopping, and can control the relay module to act to stop water outlet; when the pressure is reduced, the controller controls the electromagnet module to be electrified to adsorb a magnetic metal sheet, the controller controls the motor to rotate in the opposite direction to drive the central screw rod to rotate and ascend and the lifting screw rod to rotate and descend, the platform is driven to descend to the initial position, meanwhile, the spring rod is driven to move upwards, and the spring rod drives the sliding block to slide away from the center of the platform, so that the water receiving cup is loosened.

Claims

1. The utility model provides a be suitable for automatic centre gripping aligning device of water receiving cup of insulating pot which characterized in that: the water cup lifting device comprises a bottom plate (1), a box body (2) capable of horizontally moving along the bottom plate (1) and a lifting platform (3) capable of moving along with the box body (2) and used for placing a water cup, wherein the bottom plate (1), the box body (2) and the lifting platform (3) are sequentially arranged from bottom to top, a clamping device used for clamping the water cup, a pressure sensor (4) used for detecting whether the water cup is placed and sending a sensing signal and a detection device used for measuring the height of the water cup and the height of a water level are arranged on the platform (3); a controller (5) which is respectively and electrically connected with the platform (3), the clamping device, the pressure sensor (4) and the detection device is arranged in the box body (2), the controller (5) controls the platform (3) to lift to a specified position according to a sensing signal sent by the pressure sensor (4), and controls the clamping device to clamp or loosen the water receiving cup and controls the detection device to measure; the platform (3) is connected with the box body (2) through at least 3 lifting screw rods (6) uniformly distributed on the platform, a central screw rod (7) is arranged on the box body (2), and the end part of the central screw rod (7) is connected with an output shaft of a motor (8) positioned in the box body (2); the central screw (7) is connected with a lifting screw (6) through a belt wheel transmission assembly, and the lifting screw (6) is connected with other lifting screws (6) through the belt wheel transmission assembly; the motor (8) is started to drive the central screw rod (7) to rotate, and the central screw rod (7) drives the lifting screw rod (6) to rotate so as to drive the platform (3) to lift up and down; the clamping device comprises at least 3 uniformly distributed spring rods (9) connected with one end of a central screw rod (7) and a sliding block (10) which is connected with each spring rod (9) and can move along the radial direction of the platform, a motor (8) is started to drive the central screw rod (7) to rotate, and the platform (3) is lifted and lowered while the sliding block (10) is pulled through the spring rods (9) to move along the radial direction of the platform to clamp or loosen the water receiving cup.

2. A water-receiving cup self-gripping alignment device for an electric kettle as claimed in claim 1, wherein: the detection device comprises a guide rod (11) vertically arranged on the platform, a magnetic metal sheet (12) which is arranged on the guide rod in a penetrating mode and can slide along the guide rod, an electromagnet module (13) which is positioned at the top end of the guide rod and can absorb the magnetic metal sheet, a first ultrasonic module (14) used for measuring the height of the magnetic metal sheet and a second ultrasonic module (15) used for measuring the height of the water level, the electromagnet module (13), the first ultrasonic module (14) and the second ultrasonic module (15) are electrically connected with the controller (5), the controller (5) controls the electromagnet module (13) to lose power according to a sensing signal sent by the pressure sensor (4), the magnetic metal sheet (12) slides to the position of the water receiving cup along the guide rod, the first ultrasonic module (14) transmits the height of the magnetic metal sheet to the controller, and the second ultrasonic module (15) transmits the height of the water level to the controller.

3. A water-receiving cup self-gripping alignment device for an electric kettle as claimed in claim 1, wherein: the device also comprises a buzzer (16) positioned in the box body, wherein the buzzer (16) is connected with the controller (5).

4. A water-receiving cup self-gripping alignment device for an electric kettle as claimed in claim 1, wherein: the bottom plate (1) comprises a fixing plate (101), an X-direction side plate (102) and a Y-direction side plate (103) which are formed by bending the fixing plate, an X-direction adjusting bolt (104) is connected between the X-direction side plate (102) and the box body (2), and a Y-direction adjusting bolt (105) is connected between the Y-direction side plate (103) and the box body (2).

5. A water-receiving cup self-gripping alignment device for an electric kettle as claimed in claim 1, wherein: the electric kettle further comprises a relay module (17) for controlling water outlet and water cut-off of the electric kettle, and the relay module (17) is electrically connected with the controller (5).

6. A control method of an automatic clamping and aligning device for a water receiving cup of an electric kettle according to any one of claims 1 to 5, characterized by comprising the following steps: the pressure sensor transmits a pressure signal detected in real time to the controller, and the controller controls the electromagnet module to keep an electrified state to adsorb the magnetic metal sheet when the pressure is not increased; when the pressure is increased, the controller controls the motor to rotate to drive the central screw rod to rotate and descend and the lifting screw rod to rotate and ascend, so as to drive the platform to ascend to a specified position and simultaneously drive the spring rod to move downwards, and the spring rod drives the sliding block to slide towards the center of the platform so as to clamp the water receiving cup; the controller controls the buzzer module to send out a water outlet prompting signal and can control the relay module to act to discharge water from the water outlet; the second ultrasonic module transmits real-time water level height information to the controller, when the water level is increased, the controller controls the electromagnet module to lose power, the magnetic metal sheet slides downwards to the position of the cup opening of the water receiving cup along the guide rod, the first ultrasonic module measures the height of the magnetic metal sheet to obtain the height of the water receiving cup and transmits the height of the water receiving cup to the controller, the controller sets a water level early warning value according to the height of the water receiving cup, and when the real-time water level is higher than the early warning value, the controller controls the buzzer module to send out a signal for prompting water outlet stopping, and can control the relay module to act to stop water outlet; when the pressure is reduced, the controller controls the electromagnet module to be electrified to adsorb a magnetic metal sheet, the controller controls the motor to rotate in the opposite direction to drive the central screw rod to rotate and ascend and the lifting screw rod to rotate and descend, the platform is driven to descend to the initial position, meanwhile, the spring rod is driven to move upwards, and the spring rod drives the sliding block to slide away from the center of the platform, so that the water receiving cup is loosened.