CN112663299A

CN112663299A - Self-lifting device

Info

Publication number: CN112663299A
Application number: CN202011629124.8A
Authority: CN
Inventors: 徐振宇; 邵晓群; 许森; 阮越; 尉理哲; 叶芳芳; 江俊; 王金铭; 吴建锋
Original assignee: Zhejiang Shuren University
Current assignee: Zhejiang Shuren University
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-16

Abstract

The invention discloses a self-lifting device, which is integrally arranged in a shell, wherein a connecting mechanism is arranged on the surface of the shell and is used for being connected with a part to be lifted; at least a first winder, a first motor, a second winder, a second motor, a control circuit and a power supply module are fixedly arranged in the shell, wherein the power supply module is used for supplying electric energy to the device; the first winder and the second winder are respectively wound with a rope, and the other end of the rope is fixed on a ceiling; the first motor and the second motor are respectively used for driving the first winder and the second winder to simultaneously perform winding or unwinding operation so as to realize ascending and descending of the device; the control circuit is used for controlling the actions of the first motor and the second motor. By adopting the technical scheme of the invention, the self-lifting of the device is realized by the built-in winder and the motor, the structure of the lifting device is greatly simplified, and the use and the installation are very convenient.

Description

Self-lifting device

Technical Field

The invention relates to the technical field of lifting control, in particular to a self-lifting device.

Background

With the development of science and technology, especially the popularization of smart homes, many facilities in a family need lifting functions, so that intelligent and comfortable home life is realized. For example, the intelligent lifting clothes hanger is widely used, can be controlled to lift, and is greatly convenient for clothes to be taken up and dried. However, the intelligent clothes hanger in the prior art needs to be provided with the lifting control device on the balcony ceiling, is troublesome to install and high in requirement, occupies a large space, and is not beautiful and tidy enough. For another example, at present, lamps are usually fixedly installed, and if height control of the lamps can be realized, intelligent lighting control is facilitated, and more scenes can be suitable.

Therefore, aiming at the defects of the prior art, it is necessary to provide a self-lifting device, and the device can be conveniently controlled to lift an element to be lifted (such as a clothes airing rod, a lamp and the like) only by being installed together, so as to solve the technical problems in the prior art.

Disclosure of Invention

In view of the above, it is necessary to provide a self-lifting device, which uses a motor and a winder arranged therein to realize self-lifting, thereby greatly simplifying the structure of the lifting device; the device is connected with the part to be lifted, so that the part can be controlled to be lifted automatically, and the device is very convenient to use and install.

In order to solve the technical problems in the prior art, the technical scheme of the invention is as follows:

a self-lifting device is integrally arranged in a shell, and a connecting mechanism is arranged on the surface of the shell and is used for being connected with a part to be lifted; at least a first winder, a first motor, a second winder, a second motor, a control circuit and a power supply module are fixedly arranged in the shell, wherein the power supply module is used for supplying electric energy to the device; the first winder and the second winder are respectively wound with a rope, and the other end of the rope is fixed on a ceiling; the first motor and the second motor are respectively used for driving the first winder and the second winder to simultaneously perform winding or unwinding operation so as to realize ascending and descending of the device; the control circuit is used for controlling the actions of the first motor and the second motor;

the power supply module is connected with an external power supply input end through a power line and used for converting the external power supply input into proper working voltage to supply power to the control circuit, the first motor and the second motor; the control circuit at least comprises a control module, a wireless transmission module and a motor driving module, wherein,

the wireless transmission module is used for acquiring a user instruction;

the control module is used for controlling the motor driving module to output a driving signal according to the acquired user instruction.

As a further improvement, the user instruction at least comprises an ascending instruction, a descending instruction and a stopping instruction;

when executing the ascending command, the motor drives the winder to perform the winding operation, and the device ascends through rope winding; when a descending instruction is executed, the motor drives the winder to execute unwinding operation, and the device descends through rope unwinding; when the stop command is executed, the motor-driven bobbin remains in the existing state.

As a further improvement, a gyroscope or an attitude sensor is also arranged in the control circuit.

As a further improvement scheme, a level detection unit is arranged in the device, the level detection unit is fixedly arranged in a shell and at least comprises a leveling tube and an infrared transceiver, liquid is filled in the leveling tube, a bubble is arranged in the leveling tube, and the position of the bubble is used for changing along with the inclination angle of the device; two infrared transceivers are respectively arranged at two ends of the leveling tube, the infrared transceivers are connected with the control circuit and are used for sending infrared signals and receiving reflected signals, and when the device is in a horizontal state, the infrared signals sent by the two infrared transceivers are on the liquid surface; when the device is in a tilted state, at least one infrared transceiver transmits an infrared signal at the surface of the bubble, wherein the reflected signals from the surface of the liquid and the surface of the bubble are substantially different.

As a further improvement scheme, the control module acquires the inclination state information of the device according to the reflection signal of the infrared transceiver and controls the actions of the first motor and the second motor to keep the device in a horizontal state.

As a further improvement, a comparison circuit is arranged in the control circuit, and the comparison circuit is used for comparing the reflection signal of the infrared transceiver with a preset threshold value and outputting the inclination state information.

As a further improvement, the infrared transceiver is integrated in the control circuit.

As a further improvement, the shell adopts a closed shell.

As a further improvement, the first motor and the second motor are motors with reduction gears.

As a further improvement, the free travel of the power cord is greater than the maximum travel of the rope descent.

Compared with the prior art, the automatic lifting control device has the advantages that the winder and the motor are arranged in the device to realize automatic lifting control, so that the structure of the lifting device is greatly simplified; when the device is used, the device is connected with a part to be lifted, then the device is fixed on a ceiling by adopting a rope, the built-in motor is used for driving the winder to perform winding operation, and the device can be lifted automatically, so that the device is very convenient to use and install.

Drawings

Fig. 1 is a block diagram of the self-lifting device of the present invention.

Fig. 2 is a schematic block diagram of a control circuit in the self-elevating apparatus according to the present invention.

FIG. 3 is a schematic block diagram of a level detection unit according to the present invention.

The following specific embodiments will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solution provided by the present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, a schematic block diagram of a self-lifting device of the present invention is shown, wherein the self-lifting device is integrally arranged in a housing, and a connecting mechanism is arranged on the surface of the housing, and the connecting mechanism is used for connecting with a component to be lifted; at least a first winder, a first motor, a second winder, a second motor, a control circuit and a power supply module are fixedly arranged in the shell, wherein the power supply module is used for supplying electric energy to the device; the first winder and the second winder are respectively wound with a rope, and the other end of the rope is fixed on a ceiling; the first motor and the second motor are respectively used for driving the first winder and the second winder to simultaneously perform winding or unwinding operation so as to realize ascending and descending of the device; the control circuit is used for controlling the actions of the first motor and the second motor.

Among the above-mentioned technical scheme, power module adopts the mode of external power cord to provide the power supply for the device, and power module is connected with external power input end through the power cord for convert external power input into suitable operating voltage and provide the power supply for control circuit, first motor and second motor. Because the self-lifting device adopts the power line for power supply, the power line is easy to be stressed and broken in the lifting process to cause potential safety hazards. Therefore, in practical application, the stroke of the power line is set to be larger than the maximum stroke of the rope, which can be descended, so that the power line can stretch out and draw back in an unstressed state in the self-ascending and self-descending process, and the power line cannot be torn. Preferably, the device is also provided with a wire slot, and the power line automatically retracts into the wire slot when ascending and extends out of the wire slot when descending.

In the technical scheme, the connecting mechanism is realized by adopting the existing fixing device and mainly has the main function of realizing the connection and the fixation with the part to be lifted, for example, the connecting mechanism is fixedly arranged on a clothes airing rod, so that the lifting or the descending of the clothes airing rod can be controlled; for example, the connecting mechanism is fixedly provided with a fluorescent lamp holder or other lamps, so that the lamps can ascend or descend; the self-lifting device can transform the space of some fixing devices in the house, so that the self-lifting device can conveniently control lifting.

Referring to fig. 2, a schematic block diagram of a control circuit is shown, which at least includes a control module, a wireless transmission module and a motor driving module, where the wireless transmission module is used to obtain a user instruction, and the user may send the control instruction through a mobile terminal such as a mobile phone, or send the control instruction through a fixed remote controller; the control module is used for controlling the motor driving module to output a driving signal according to the acquired user instruction.

The user instructions at least comprise ascending instructions, descending instructions and stopping instructions;

when the ascending instruction is executed, the motor drives the winder to perform winding operation, and the clothes airing rod is ascended through rope winding; when a descending instruction is executed, the motor drives the winder to execute unwinding operation, and the clothes-horse descends by unwinding the rope; when the stop command is executed, the motor-driven bobbin remains in the existing state.

In a preferred embodiment, the power supply module is integrated in the control circuit.

In the invention, two motors are adopted to synchronously control the two winders to realize the ascending and descending of the device, however, in practical application, the loads of the parts to be lifted are often unbalanced, for example, clothes hung on one side of a clothes airing rod are heavier than the other side of the clothes airing rod, in this case, although a control circuit gives synchronous control driving signals to the two motors, the actual strokes of the two winders are different due to different loads, and the self-lifting device is inclined, so that the practical use is influenced. In order to solve the technical problem, in a preferred embodiment, a gyroscope or an attitude sensor is further provided in the control circuit, so as to detect the inclination state of the device, and further adjust the operation of the corresponding motor to make the device in a horizontal state.

Although the gyroscope or the attitude sensor has high detection accuracy, the cost thereof is high. In order to further reduce the cost, the invention creatively provides a level detection unit, which is shown in fig. 3 as a schematic diagram of the principle of the level detection unit, and adopts a mechanical level tube and an infrared transceiver to realize inclination detection, so that a gyroscope is not needed, and the invention has the advantages of convenience in realization, low cost and the like. The level detection unit is fixedly arranged in the device shell and at least comprises a level pipe and an infrared transceiver, wherein the level pipe is used for detecting the levelness of the self-lifting device so as to acquire the information of the inclined state; the level pipe is filled with liquid and is provided with a bubble, and the position of the bubble is used for changing along with the inclination angle of the device; two infrared transceivers are respectively arranged at two ends of the leveling tube, the infrared transceivers are connected with the control circuit and are used for sending infrared signals and receiving reflected signals, and when the device is in a horizontal state, the infrared signals sent by the two infrared transceivers are on the liquid surface; when the device is in the inclined state, the infrared signals transmitted by the at least one infrared transceiver are on the surface of the bubble, wherein the reflection signals of the liquid surface and the bubble surface are obviously different, and the control module acquires the inclined state information of the device according to the reflection signals.

According to the technical scheme, the mechanical leveling tube is adopted, and the working principle is that when the mechanical leveling tube is inclined, air bubbles in the leveling tube move towards the rising end of the level, so that the position of a horizontal plane is determined. However, the existing mechanical level can only observe the horizontal state of the current plane by human eyes, and cannot be directly applied to the inclination control of the lifting table. In this regard, the applicant has creatively proposed that the current tilt state of the device can be accurately determined by detecting the position of the bubble using an infrared transceiver and using the difference in the reflectivity of the liquid surface and the bubble surface to the infrared signal so that the received reflected signals are significantly different.

In a preferred embodiment, the shell adopts a closed shell, and the infrared transceiver is arranged in the closed shell; in practical applications, the infrared transceiver may be integrated in the control circuit. Because the invention realizes detection by utilizing the difference of the reflectivity of the liquid surface and the bubble surface to the infrared signals, the working environments of the two infrared transceivers in the closed shell are completely the same and are less influenced by the illumination of the external environment, thereby improving the accuracy of measurement. As preferred, adopt the integrative fixed of encapsulating mode in the shell, both can guarantee that the casing is airtight space, can play the fixed action to the device simultaneously, guarantee that infrared transceiver and level pipe's position can not squint, in addition, can also play the fixed action to the power cord, even if lift in-process atress is dragged, can not cause the power cord to drop yet.

In a preferred embodiment, the control circuit is provided with a comparison circuit, and the input end of the comparison circuit is a received reflection signal of the infrared transceiver, and compares the received reflection signal with a preset threshold value, so as to judge whether the inclination condition occurs or not and output the inclination state information. The adoption of the comparison circuit can conveniently realize the detection of the inclined state, thereby further simplifying the circuit structure. The detection principle is that the difference of the reflection signals received by the two infrared transceivers is utilized, because the reflection signals of the liquid surface and the bubble surface are obviously different, the threshold value of the comparator is preset according to the difference of the reflection signals, once the inclination state occurs, the output signal of the comparison circuit is preferred, the two comparators are adopted to simultaneously compare the received reflection signals of the two infrared transceivers with the threshold values respectively, and therefore whether the inclination state occurs or not can be judged, and the inclination towards the direction can be conveniently judged. The control module acquires the tilt state information and controls the action of the corresponding motor to keep the device in a horizontal state.

Furthermore, the device also comprises a control unit arranged on the ceiling, and the control unit also comprises a plurality of electromagnetic generators which are arranged at corresponding positions on the ceiling. Meanwhile, the surface of the shell of the self-lifting device is also provided with a plurality of permanent magnets, and when the device is lifted to a position close to a ceiling, the electromagnetic generator is controlled to generate an electromagnetic field and attract the permanent magnets, so that the device can be stably attracted and fixed on the ceiling; meanwhile, when the lowering operation is performed, the electromagnetic generator is controlled not to generate the electromagnetic field, and the attraction force between the electromagnetic generator and the permanent magnet disappears.

Furthermore, the control unit is also provided with an induction module, the induction module is used for inducing whether the permanent magnet is close to the permanent magnet or not, and when the permanent magnet is detected to be close to the permanent magnet, the electromagnetic generator is controlled to generate an electromagnetic field so as to attract the permanent magnet. Preferably, the induction module is integrally arranged in the electromagnetic generator, that is, the spiral coil in the electromagnetic generator is used as the induction coil when not receiving electromagnetic excitation, when the permanent magnet approaches, the changing magnetic field causes the induction coil to generate induction current, and whether the permanent magnet approaches is detected by detecting the induction current; when the permanent magnet is detected to be close to the magnetic coil, the electromagnetic generator generates electromagnetic excitation to enable the spiral coil to generate an electromagnetic field to attract the permanent magnet.

In a preferred embodiment, the control unit is also provided with a wireless transmission module for obtaining user instructions and controlling the operation of the electromagnetic generator accordingly.

Furthermore, a groove is formed in the ceiling, and the control unit is arranged in the groove, so that the attractiveness of integral decoration is maintained.

The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The self-lifting device is characterized in that the device is integrally arranged in a shell, and a connecting mechanism is arranged on the surface of the shell and is used for being connected with a part to be lifted; at least a first winder, a first motor, a second winder, a second motor, a control circuit and a power supply module are fixedly arranged in the shell, wherein the power supply module is used for supplying electric energy to the device; the first winder and the second winder are respectively wound with a rope, and the other end of the rope is fixed on a ceiling; the first motor and the second motor are respectively used for driving the first winder and the second winder to simultaneously perform winding or unwinding operation so as to realize ascending and descending of the device; the control circuit is used for controlling the actions of the first motor and the second motor;

the wireless transmission module is used for acquiring a user instruction;

2. The self-lifting device according to claim 1, wherein the user command includes at least a lifting command, a lowering command, and a stopping command;

3. The self-elevating device according to claim 1 or 2, wherein a gyroscope or an attitude sensor is further provided in the control circuit.

4. The self-elevating device according to claim 1 or 2, wherein a level detecting unit is provided in the device, the level detecting unit is fixedly provided in the housing, and comprises at least a level tube and an infrared transceiver, the level tube contains a liquid and is provided with a bubble, and the position of the bubble is used for changing along with the inclination angle of the device; two infrared transceivers are respectively arranged at two ends of the leveling tube, the infrared transceivers are connected with the control circuit and are used for sending infrared signals and receiving reflected signals, and when the device is in a horizontal state, the infrared signals sent by the two infrared transceivers are on the liquid surface; when the device is in a tilted state, at least one infrared transceiver transmits an infrared signal at the surface of the bubble, wherein the reflected signals from the surface of the liquid and the surface of the bubble are substantially different.

5. The self-elevating device according to claim 4, wherein the control module obtains the tilt information of the device according to the reflected signal of the infrared transceiver and controls the first motor and the second motor to move to keep the device in a horizontal state.

6. The self-elevating device according to claim 4, wherein a comparison circuit is provided in the control circuit, and the comparison circuit is configured to compare the reflection signal of the infrared transceiver with a preset threshold value and output inclination state information.

7. The self-elevating device according to claim 4, wherein the infrared transceiver is integrated in the control circuit.

8. The self-elevating device according to claim 4, wherein the housing is a hermetic case.

9. The self-elevating device according to claim 1 or 2, wherein the first motor and the second motor are motors with reduction gears.

10. The self-elevating device according to claim 1 or 2, wherein a free stroke of the power line is greater than a maximum stroke of the rope descending.