CN116006839A - Manual and electric integrated lifting structure - Google Patents

Abstract

The invention discloses a manual and electric integrated lifting structure which comprises a motor, a planetary gear set, a hand rocker, a hand worm, a rotating shaft, a conveyor belt and a lifting platform. The motor drives a planetary gear in the planetary gear set to rotate through a sun gear, the planetary gear drives a rotating shaft to rotate, the rotating shaft further drives a conveyor belt to rotate, and the lifting platform is fixed on the conveyor belt, so that the motor drives the lifting platform to lift. The hand worm is operated by the hand rocker to drive the revolution wheel in the planetary gear set to operate, and the revolution wheel drives the planet wheel in the planetary gear set to rotate, so that the lifting platform is driven to lift by the hand worm operated by the hand rocker. Under the combined action of the mechanisms, the invention realizes the manual and electric integrated lifting of the electronic screen, and the manual mode and the electric mode are not mutually influenced. Under the conditions of motor failure or power failure, power failure and the like, namely, failure of an electric mode occurs, the manual mode still works normally.

Description

A manual and electric integrated lifting structure

technical field

The invention relates to the technical field of lifting devices, in particular to a hand-electric integrated lifting structure.

Background technique

An electronic screen is a device or electrical appliance used to display images and colors, and is used to display various information, widely appearing in the office field. Most of the current electronic screen lifts are in electric mode. Although the electric control lift is easy to operate, once the motor fails, the electronic screen will not be able to lift normally. In addition, when the motor is normal, if there is a power failure or power failure, the electronic screen will not be able to rise and fall normally.

Contents of the invention

The purpose of the present invention is to solve the problems in the above-mentioned background technology, and propose a hand-operated integrated lifting mechanism.

In order to achieve the above object, the present invention adopts the following technical solutions: a manual and electric integrated lifting structure, including a box, a motor, a planetary gear structure, a hand lever, a hand worm, a rotating shaft and a conveyor belt. The planetary gear structure includes sun gears, planetary gears, revolving wheels and synchronous discs. The motor is installed at the bottom of the box body, and the output end of the motor is rotatably connected with the synchronous disc, so that the synchronous disc can rotate relative to the output end of the motor. One end of the planetary wheel is rotatably mounted on the synchronous disc, and the other end of the planetary wheel is rotatably mounted on the revolving wheel, so that the planetary wheel can rotate relative to the synchronous disc and the revolving wheel. The revolving wheel is rotatably mounted on the rotating shaft, so that the revolving wheel can rotate relative to the rotating shaft. The outer teeth of the planetary gear are meshed with the outer teeth of the sun gear and the outer teeth of the rotating shaft, so that the sun gear can drive the planetary gears to rotate, and then the planetary gears can drive the rotating shaft to rotate. The sun gear is fixedly installed on the output end of the motor, so that the motor can drive the planetary gears to rotate by themselves through the sun gear. The rotating shaft is rotatably installed inside the casing so that the rotating shaft can rotate relative to the casing. One end of the rotating shaft is provided with external teeth meshing with the outer teeth of the planetary gear, and the other end of the rotating shaft is connected with the transmission belt. The hand-operated worm is fixedly installed at the bottom of the box, and the outer teeth of the hand-operated worm mesh with the outer teeth of the revolution wheel to form a worm gear structure. And the orbiting wheel can drive the planetary wheel to revolve around the center of the orbiting wheel, so that the planetary wheel drives the rotating shaft to rotate, and the hand-operated worm is provided with an insertion hole to be adapted to the hand-operated lever.

Further, one end of the conveyor belt is wrapped around the rotating shaft, so that the rotation of the rotating shaft can drive the conveyor belt to move, and the other end of the conveyor belt is wrapped around a fixed pulley, which is fixedly installed in the box.

Further, it also includes a lifting platform and guide rails. There are at least two guide rails. The guide rails are installed on the inner plane of the box body. Slide on the rail.

Further, it also includes an electronic screen, and the electronic screen is fixedly installed on the lifting platform.

Further, the box body is a hollow cuboid, and the top of the box body is provided with a rectangular opening so that the electronic screen enters and exits the box body through the opening of the box body, and the box body is provided with a through holes, so that the hand crank can be inserted into the hand worm through the box.

Further, the hand worm is operated clockwise and counterclockwise through the hand lever, so that the hand worm can drive the revolving wheel from clockwise and counterclockwise, and the revolving wheel can be driven from clockwise and counterclockwise. Drive the planetary wheel in two directions, and the planetary wheel can drive the rotating shaft from two directions, clockwise and counterclockwise, so that the driving shaft can drive the lifting platform to lift through the conveyor belt.

Further, the output end of the motor supports rotation in both clockwise and counterclockwise directions, so that the motor can drive the sun gear in both clockwise and counterclockwise directions, and the sun gear can drive in both clockwise and counterclockwise directions The planetary wheel, the planetary wheel can drive the rotating shaft from two directions clockwise and counterclockwise, so that the driving shaft can drive the lifting platform to lift through the conveyor belt.

Further, there are at least two planetary wheels, and each planetary wheel includes a large part and a small part, and gears are distributed on the large part and the small part. Shaft engagement.

Further, the revolving wheel and the synchronous disc are connected by two connecting columns, and the two ends of each connecting column are fixedly installed on the revolving wheel and the synchronizing disc respectively, and the two connecting columns are connected between the revolving wheel and the synchronous disc. The two connection points are on a straight line with the center of circle of the orbiting wheel, so that the rotation of the orbiting wheel can stably drive the synchronous rotation of the synchronous disc.

Further, the rotating shaft is divided into a gear part, a smooth part and a transmission part, and the gear part, the smooth part and the transmitting part are all circular, the gear part of the rotating shaft meshes with the small part of the planetary wheel, and the transmission part of the rotating shaft is connected to the conveyor belt. , the gear part and the transmission part are located at both ends of the rotating shaft, the smooth part is located in the middle of the rotating shaft, and the revolving wheel is rotatably connected with the smooth part through the middle hole.

The invention combines the advantages of manual and electric control of the electronic screen's lifting, and the lifting function can be realized manually when the motor fails. In addition, the planetary gear structure adopted by the present invention can realize simultaneous operation in manual mode and electric mode. In addition, the present invention adopts belt transmission with lower noise than chain transmission, and is more suitable for application in office scenes.

Description of drawings:

The included drawings are used to provide further understanding of the embodiments of the present invention, and constitute a part of the specification, are used to illustrate the implementation mode of the present invention, and together with the text description, explain the principle of the present invention. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative effort. In the attached picture:

Fig. 1 is the three-dimensional structure diagram of the embodiment of the present invention;

Fig. 2 is an internal schematic diagram of an embodiment of the present invention;

Fig. 3 is another internal schematic diagram of the embodiment of the present invention;

Fig. 4 is a partial enlarged view of an embodiment of the present invention;

Fig. 5 is another partial enlarged view of the embodiment of the present invention.

In the figure: 1-box; 2-motor; 3-hand lever; 4-hand worm; 5-rotation shaft; 6-conveyor belt; 7-sun gear; 8-planetary gear; - synchronous disc; 11 - lifting platform; 12 - guide rail; 13 - electronic screen.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:

As shown in Figures 1-5, a hand-electric integrated lifting structure includes a box body 1, a motor 2, a planetary gear structure, a hand lever 3, a hand worm 4, a rotating shaft 5, a conveyor belt 6, and a lifting platform 11 , guide rail 12 and electronic screen 13.

The planetary gear structure includes a sun gear 7, a planetary gear 8, a revolving wheel 9 and a synchronous disc 10, wherein at least two planetary gears 8 are provided, and each planetary gear 8 includes a large part and a small part, a large part and a small part Gears are evenly distributed on the top, most of the planetary gears 8 are meshed with the sun gear 7, and a small part of the planetary gears 8 are meshed with the rotating shaft 5. The rotating shaft 5 is divided into a gear part, a smooth part and a transmission part, and the gear part, the smooth part and the transmission part are all circular. The gear part of the rotating shaft 5 meshes with the small part of the planetary wheel 8, the transmission part of the rotating shaft 5 is connected to the transmission belt 6, the gear part and the transmission part are located at both ends of the rotating shaft 5, the smooth part is located in the middle of the rotating shaft 5, and the revolving wheel 9 is rotatably connected with the smooth part through the middle circular hole. And the rotating shaft 5 is rotatably installed inside the box body 1 , so that the rotating shaft 5 can rotate relative to the box body 1 . The motor 2 is fixedly installed at the inner bottom of the box body 1 , and the output end of the motor 2 is connected to the synchronous disc 10 in rotation, so that the synchronous disc 10 can rotate relative to the output end of the motor 2 . Most of the planetary wheels 8 are rotatably installed on the synchronous disc 10 , and a small part of the planetary wheels 8 are rotatably installed on the revolving wheel 9 , so that the planetary wheels 8 can rotate relative to the synchronous disc 10 and the revolving wheel 9 . The revolving wheel 9 and the synchronizing disc 10 are connected by two connecting columns, and the two ends of each connecting column are fixedly installed on the revolving wheel 9 and the synchronizing disc 10 respectively. The revolving wheel 9 can drive the planetary wheel 8 to revolve around the center of the revolving wheel 9 , so that the planetary wheel 8 drives the rotating shaft 5 to rotate. The hand worm 4 is long cylindrical, and the outer surface of the hand worm 4 is distributed with helical teeth. One end of the hand worm 4 is provided with an opening, and a hexagonal column-shaped hole is formed extending from one end of the hand worm 4 to the other end. The hand rocker 3 is used in conjunction with the hole groove formed by the hand worm 4, and the part where the hand rocker 3 stretches into the hand worm 4 hole groove is hexagonal. The helical teeth on the outer surface of the hand worm 4 mesh with the outer teeth of the revolving wheel 9, and the hand worm 4 and the revolving wheel 9 form a worm gear structure. Referring to Fig. 4 and Fig. 5, wherein, the plane where the direction of rotation of the helical teeth of the hand worm 4 is perpendicular to the plane where the direction of rotation of the outer teeth of the revolving wheel 9 is located, and the hand worm 4 is located on an outer side of the revolving wheel 9 , that is, the helical teeth of the hand-operated worm 4 are on the same plane as or parallel to the plane of the current screen, and the plane where the direction of rotation of the outer teeth of the revolving wheel 9 is perpendicular to the current plane of the front-view, so that the spiral of the hand-operated worm 4 The plane where the direction of rotation of the teeth is located is perpendicular to the plane where the direction of rotation of the outer teeth of the revolving wheel 9 is located, so that the hand rocker 3 can extend into the hand worm 4 from the plane facing the current screen and drive the hand worm 4 on the current screen. The plane rotates clockwise or counterclockwise, and the hand worm 4 drives the revolving wheel 9 to rotate clockwise or counterclockwise perpendicular to the current screen plane. The two connection points of the two connecting columns on the revolving wheel 9 are on a straight line with the center of circle of the revolving wheel 9, so that the rotation of the revolving wheel 9 can stably drive the synchronous disc 10 to rotate synchronously. Most of the external teeth of the planetary gear 8 are engaged with the external teeth of the sun gear 7, and a small part of the external teeth of the planetary gear 8 are engaged with the external teeth of the rotating shaft 5, so that the sun gear 7 can drive the planetary gear 8 to rotate, and then the planetary gear 8 can drive the rotation Axis 5 rotates.

The sun gear 7 is fixedly installed on the output end of the motor 2, so that the motor 2 can drive the planetary gear 8 to rotate by itself through the sun gear 7. One end of the conveyor belt 6 is wrapped around the transmission part of the rotating shaft 5, so that the rotation of the rotating shaft 5 can drive the conveyor belt 6 to move, and the other end of the conveyor belt 6 is wrapped around the fixed pulley. The fixed pulley is fixedly installed in the casing 1. The conveyor belt 6 is fixedly connected with the lifting platform 11. Lifting platform 11 is slidably installed on guide rail 12, and guide rail 12 is installed on casing 1 inner side, and guide rail 12 has at least two, so that conveyor belt 6 work can drive lifting platform 11 to slide on guide rail 12. The electronic screen 13 is fixedly installed on the lifting platform 11 .

In the manual mode, the revolution of the planetary gear 8 drives the rotating shaft 5 . The hand worm 4 is fixedly mounted on the inner bottom of the casing 1, and the helical teeth distributed on the outer surface of the hand worm 4 mesh with the outer teeth of the revolving wheel 9 to form a worm gear structure. The user drives the hand worm 4 around the hole of the hand worm 4 through the hand lever 3 to drive the revolving wheel 9 clockwise and counterclockwise, and the revolving wheel 9 drives the planets clockwise and counterclockwise. The wheel 8 and the planetary wheel 8 can drive the rotating shaft 5 clockwise and counterclockwise, so that the rotating shaft 5 can drive the lifting platform 11 to go up and down through the conveyor belt 6 .

In the electric mode, the rotation of the planetary gear 8 drives the rotating shaft 5 . The output end of the motor 2 supports rotation in both clockwise and counterclockwise directions, so that the motor 2 can drive the sun gear 7 in both clockwise and counterclockwise directions, and the sun gear 7 can drive the planet in both clockwise and counterclockwise directions The wheel 8 and the planetary wheel 8 can drive the rotating shaft 5 from both clockwise and counterclockwise directions, so that the driving shaft can drive the lifting platform 11 to go up and down through the conveyor belt 6 .

The box body 1 is a hollow cuboid, and the top of the box body 1 is provided with a rectangular opening so that the electronic screen 13 can enter and exit the box body 1 through the opening of the box body 1, and the box body 1 is in the same position as the insertion hole of the hand worm 4. The right place is provided with through holes, so that the hand crank 3 can pass through the casing 1 and be inserted in the hand crank worm 4 .

In summary, the lift of the present invention is that the planetary wheel 8 drives the rotating shaft 5 gear part to rotate, and the rotating shaft 5 gear part drives the transmission part to rotate, and then the transmission part of the rotating shaft 5 drives the conveyor belt 6 to work, and the conveyor belt 6 drives the lifting platform to lift 11 Lift on guide rail 12. The rotation of the planetary gear 8 has two modes, one is that the sun gear 7 drives the planetary gear 8, and the planetary gear 8 drives the rotating shaft 5 to work. But because revolving wheel 9 is rotatably connected with rotating shaft 5 smooth parts, the rotation of rotating shaft 5 gears can not drive revolving wheel 9 to work, namely planetary wheel 8 autorotation can not cause planetary wheel 8 revolutions automatically. When the hand rocker 3 is inserted into the hand worm 4, the hand worm 4 drives the revolving wheel 9 to work, the revolving wheel 9 is installed on the smooth part of the rotating shaft 5, and the synchronous disc 10 is installed on the output end of the motor 2. Most of the planetary wheels 8 are rotatably installed on the synchronous disc 10 , and a small part of the planetary wheels 8 are rotatably installed on the revolving wheel 9 , so that the planetary wheels 8 can rotate relative to the synchronous disc 10 and the revolving wheel 9 . The rotation of the revolving wheel 9 can drive the revolution of the planetary wheel 8, and the revolution of the planetary wheel 8 can drive the work of the rotating shaft 5 meshed with the small part of the planetary wheel 8. Since the revolution of the planetary gear 8 does not cause the sun gear 7 to work, the planetary gear 8 in the revolution mode will not spontaneously cause the planetary gear 8 to rotate itself. The rotation mode and the revolution mode of the planetary gear 8 are independent of each other and do not affect each other. The two modes can work independently or jointly.

For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention.

Claims (10)

1. A manual and electric integrated lifting structure, characterized in that: it comprises a casing, a motor, a planetary gear structure, a hand lever, a hand worm, a rotating shaft and a conveyor belt, and the planetary gear structure includes a sun gear, a planetary gear, Revolving wheel and synchronous disc, the motor is installed at the bottom of the box, the output end of the motor is connected to the synchronous disc so that the synchronous disc can rotate relative to the output end of the motor, one end of the planetary wheel is rotated and installed on the synchronous disc, and the other end of the planetary wheel is rotated and installed On the revolving wheel, so that the planetary wheel can rotate relative to the synchronous disc and the revolving wheel, the revolving wheel is rotatably installed on the rotating shaft, so that the revolving wheel can rotate relative to the rotating shaft, and the outer teeth of the planetary wheel are respectively connected with the outer teeth of the sun gear. The teeth and the outer teeth of the rotating shaft are engaged and connected so that the sun gear can drive the planetary gear to rotate, and then the planetary gear can drive the rotating shaft to rotate. The sun gear is fixedly installed on the output end of the motor so that the motor can drive the planetary gear to rotate through the sun gear. The rotating shaft is rotatably installed inside the box so that the rotating shaft can rotate relative to the box. One end of the rotating shaft is provided with external teeth meshing with the outer teeth of the planetary gear, and the other end of the rotating shaft is connected to the transmission belt. At the bottom of the box, the outer teeth of the hand-operated worm mesh with the outer teeth of the revolving wheel to form a worm gear structure, and the revolving wheel can drive the planetary wheel to revolve around the center of the revolving wheel, so that the planetary wheel drives the rotating shaft to rotate, and the hand-operated worm There is an insertion hole on the top to match the hand rocker. 2. A manual and electric integrated lifting structure according to claim 1, characterized in that: one end of the conveyor belt is wrapped around the rotating shaft, so that the rotation of the rotating shaft can drive the conveyor belt to move, and the other end of the conveyor belt is wrapped around a fixed shaft. On the pulley, the fixed pulley is fixedly installed in the casing. 3. A hand-operated integrated lifting structure according to claim 2, characterized in that: it also includes a lifting platform and guide rails, there are at least two guide rails, the guide rails are installed on the inner plane of the box body, and the lifting platform is slidingly installed on the guide rails and the lifting platform is fixedly connected with the conveyor belt, so that the conveyor belt can drive the lifting platform to slide on the guide rail. 4. A hand-operated integrated lifting structure according to claim 3, characterized in that it also includes an electronic screen fixedly installed on the lifting platform. 5. A hand-operated integrated lifting structure according to claim 1, characterized in that: the box is a hollow cuboid, and the top of the box is provided with a rectangular opening, so that the electronic screen can enter and exit from the opening of the box The casing, and the casing is provided with a through hole at the place facing the insertion hole of the hand worm, so that the hand crank can pass through the casing and be inserted into the hand worm. 6. A hand-operated integrated lifting structure according to claim 1, characterized in that: the hand-operated worm is operated clockwise and counterclockwise by the hand-operated lever, so that the hand-operated worm can be operated clockwise and counterclockwise. The revolving wheel is driven in two directions clockwise, the revolving wheel can drive the planetary wheel in both clockwise and counterclockwise directions, and the planetary wheel can drive the rotating shaft in both clockwise and counterclockwise directions, so that the drive shaft can drive the lift through the conveyor belt The platform lifts. 7. A hand-operated integrated lifting structure according to claim 1, characterized in that: the output end of the motor supports rotation in both clockwise and counterclockwise directions, so that the motor can rotate in both clockwise and counterclockwise directions. Drive the sun gear in two directions, the sun gear can drive the planetary gear in both clockwise and counterclockwise directions, and the planetary gear can drive the rotating shaft in both clockwise and counterclockwise directions, so that the driving shaft can drive the lifting platform to lift through the conveyor belt. 8. A hand-operated integrated lifting structure according to claim 1, characterized in that: there are at least two planetary wheels, and each planetary wheel includes a large part and a small part, and both the large part and the small part are Gears are distributed, most of the planetary gears are meshed with the sun gear, and a small part of the planetary wheels are meshed with the rotating shaft. 9. A hand-operated integrated lifting structure according to claim 1, characterized in that: the revolving wheel and the synchronous disk are connected by two connecting columns, and the two ends of each connecting column are respectively fixed on the on the revolving wheel and the synchronous disc, and the two connection points of the two connecting columns on the revolving wheel are on a straight line with the center of the revolving wheel, so that the rotation of the revolving wheel can stably drive the synchronous disc to rotate synchronously. 10. A hand-operated integrated lifting structure according to claim 8, characterized in that: the rotating shaft is divided into a gear part, a smooth part and a transmission part, and the gear part, the smooth part and the transmission part are all circular, The gear part of the rotating shaft meshes with the small part of the planetary wheel, and the transmission part of the rotating shaft is connected with the conveyor belt. The gear part and the transmission part are located at both ends of the rotating shaft, and the smooth part is located in the middle of the rotating shaft. Rotate connection.

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