CN112629139B

CN112629139B - Lifting mechanism of box body, lifting method of lifting mechanism and refrigerator

Info

Publication number: CN112629139B
Application number: CN202110105164.0A
Authority: CN
Inventors: 张翱翔; 黄珊珊; 孙哲; 钟泽健; 郭琨
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2023-12-29
Anticipated expiration: 2041-01-26
Also published as: CN112629139A

Abstract

The invention discloses a lifting mechanism of a box body, a lifting method thereof and a refrigerator, wherein the lifting mechanism comprises a drawer, a plurality of box bodies, a telescopic mechanism and a turntable; the box body rotates along with the turntable, the turntable is provided with an opening, and the telescopic mechanism penetrates through the opening to jack up the box body; the lifting mechanism further comprises a central shaft and a central cavity arranged in the middle of the turntable, a driving motor is arranged on the central shaft, a gear is arranged on an output shaft of the driving motor, internal teeth are arranged on the inner wall of the central cavity, an annular cavity is arranged outside the central cavity, a first thread is arranged in the annular cavity, a thread bush is arranged in the annular cavity, a one-way bearing is arranged between the thread bush and the central shaft, and the thread bush is in threaded connection with the central cavity; the end part of the thread bush is provided with a flanging, a positioning hole is formed in the flanging, and a first screw is arranged in the positioning hole. Compared with the prior art, the invention is convenient for users to access, can improve the box discharging speed, and has higher automation degree and more intelligent.

Description

Lifting mechanism of box body, lifting method of lifting mechanism and refrigerator

Technical Field

The invention relates to the field of refrigeration, in particular to a lifting mechanism of a box body, a lifting method of the lifting mechanism and a refrigerator.

Background

Along with the improvement of the living standard of people, the intelligent requirements on the refrigerator are also higher and higher. The existing refrigerator drawer box body has a lifting function, but the drawer is required to be completely pulled out to lift and eject all the boxes, so that the box-out speed is low and the automation degree is low; meanwhile, the existing box body is large in size, the variety of stored articles is quite miscellaneous, the whole box body needs to be taken out for each time of storage and taking, food is inconvenient to store and take, intelligence is not enough, and user requirements cannot be met.

Disclosure of Invention

The invention provides a lifting mechanism of a box body, a lifting method of the lifting mechanism and a refrigerator, and solves the technical problem that the refrigerator in the prior art is inconvenient to take and store.

The technical scheme adopted by the invention is as follows: the lifting mechanism of the box body comprises a drawer and further comprises: a plurality of box bodies arranged in the drawer; the telescopic mechanism is arranged in the drawer and performs telescopic movement towards the opening direction of the drawer; the chassis is arranged at the bottom of the drawer and can move towards the telescopic end of the telescopic mechanism, and the box body is arranged on the chassis so as to move to the telescopic end along with the chassis.

Further, the chassis is a turntable, and the plurality of box bodies are arranged along the rotating direction of the turntable.

Further, the rotating disc is provided with openings corresponding to the box bodies, and the telescopic mechanism penetrates through the openings.

Further, the telescopic mechanism is a scissor mechanism.

Further, the lifting mechanism of the box body further comprises a rotating structure for driving the turntable to rotate.

Further, the rotating structure includes: the central cavity is arranged in the middle of the turntable and used for installing the central shaft, and the driving device is used for driving the turntable to rotate by taking the central shaft as a rotating center.

Further, the driving device includes: the output shaft of the driving motor is parallel to the central shaft; and the gear is arranged on the output shaft of the driving motor, and the internal teeth are arranged on the inner wall of the central cavity and meshed with the gear.

Further, the lifting mechanism of the box body further comprises a lifting structure for driving the turntable to move back and forth towards the opening direction of the drawer.

Further, the lifting structure includes: the annular chamber is arranged outside the central chamber and is provided with a first thread; the thread sleeve is arranged in the annular cavity, can be sleeved on the central shaft in a unidirectional rotation manner, and comprises a second thread matched with the first thread.

Further, the lifting structure further comprises an orientation device for ensuring the one-way rotation of the threaded sleeve, and the orientation device comprises: the flange is arranged at the end part of the thread sleeve, a gap is reserved between the flange and the turntable and is arranged outside the annular cavity, and a positioning hole is formed in the flange; the double-head pin seat comprises a bottom plate arranged between the flanging and the bottom of the drawer, an elastic piece arranged between the bottom plate and the bottom of the drawer, a first pin arranged on the bottom plate and extending into the positioning hole, and a second pin arranged on the bottom plate and parallel to the first pin, wherein the second pin is propped against the turntable; and the one-way bearing is arranged between the central shaft and the threaded sleeve.

Further, the double-headed pin holder further comprises a cover body fixed on the drawer and arranged between the bottom plate and the flanging to limit the movement of the bottom plate.

Further, the lifting structure further includes: the device comprises a controller for controlling the rotation of the driving motor, and a sensor arranged in the drawing direction of the drawer for detecting the drawing distance of the drawer, wherein the sensor is connected with the controller.

Further, the sensor is a switch button, and the drawer includes a boss corresponding to the switch button to touch the switch button.

The lifting method of the box body comprises a lifting mechanism of the box body, and when the size of the drawing part of the drawer reaches a preset value, the chassis moves to drive one of the box bodies to the telescopic end of the telescopic mechanism for lifting.

The box body comprises a lifting mechanism of the box body, and when the size of the drawing part of the drawer reaches a preset value, the lifting mechanism drives the chassis to lift.

A refrigerator comprising the lifting mechanism of the box body.

Compared with the prior art, the drawer is internally provided with the plurality of box bodies, the specific chassis can be taken out through the telescopic mechanism through the movable chassis, the whole drawer does not need to be lifted, and the drawer is convenient for a user to access; meanwhile, compared with the prior art, the box discharging speed is improved, the degree of automation is higher, and the box discharging machine is more intelligent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic and simplified illustration of a cross-sectional structure of a lifting mechanism for a box body in the present invention;

FIG. 2 is a schematic and schematic illustration of a part of the elevating mechanism of the case of the present invention;

FIG. 3 is a schematic illustration of the construction of a double-ended keyway in accordance with the present invention;

FIG. 4 is a schematic view showing a sectional structure in a drawer drawing direction in the present invention;

fig. 5 is a schematic diagram showing a three-dimensional structure of a drawer according to the present invention.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The application provides a lifting mechanism of a box body, as shown in fig. 1 and 2, the lifting mechanism of the box body comprises a drawer 1, the drawer 1 is arranged in a container 2 of a refrigerator, an opening is formed above the drawer 1, and the drawer 1 can be pulled to store and take food; according to the food storage box, the plurality of box bodies 3 are arranged in the drawer 1, and the box bodies 3 can store different foods in a classified mode, so that on one hand, the smell can be prevented, on the other hand, a user can conveniently take out a specific box body 3 to take out a specific food material, and the user does not need to find the food; the bottom of the drawer 1 is provided with a chassis 4, the chassis 4 is used for placing the box bodies 3, the box bodies 3 are placed on the chassis 4 according to a specific mode, the chassis 4 is movably arranged, and the chassis 4 moves and drives the box bodies 3 to move; and, elevation structure still includes the telescopic machanism 5 that sets up inside drawer 1, and telescopic machanism 5 includes flexible end 51, and flexible end 51 is towards the opening direction of drawer 1, and chassis 4 moves in order to remove a certain box body 3 to flexible end 51 department towards flexible end 51 direction, thereby telescopic machanism 5 stretches out and draws back this box body 3 ejecting drawer 1 of this box body at this moment, and the user of being convenient for takes.

Further, chassis 4 in this application is rotatable carousel, and all boxes are all placed on the carousel, and the middle part of carousel is the pivot, and each box encloses a week along the pivot so that these boxes can arrange the setting with the direction of rotation of carousel, drives certain box among them to specific position through the pivoted mode, namely telescopic machanism 5 flexible end 51 top to it is ejecting with this box.

In other embodiments, the chassis 4 may also move the box by other manners, such as a sliding rail, a sliding block structure, etc.

Further, a plurality of openings 41 are further provided on the chassis 4 (turntable), the openings 41 are in one-to-one correspondence with the respective boxes, that is, an opening 41 is provided under each box, the telescopic mechanism 5 is provided under the turntable, the telescopic ends 51 are located on the rotation paths of the openings 41, when the turntable rotates to a certain angle, the real openings 41 are opposite to the telescopic mechanism 5, the telescopic mechanism 5 stretches and stretches, and then the box corresponding to the opening 41 is ejected.

Preferably, the telescopic mechanism 5 in this embodiment is a scissor mechanism, and the motor drives the scissor mechanism to shrink or expand, so that the scissor mechanism has higher stability, wider telescopic end and higher bearing capacity, and the working efficiency is higher, and the safety is more ensured.

Further, in this embodiment, the rotating disc is driven to rotate by the rotating structure, so as to further improve the automation level of the present application.

The rotating structure mainly comprises a central shaft 61, a central chamber 62 and a driving device; wherein, the central shaft 61 is fixed on the bottom surface of the drawer 1, which plays a role of supporting the chassis to rotate; the central chamber 62 is disposed in the middle of the chassis 4, and is formed by a hollow columnar protrusion disposed on the chassis 4, and the central shaft 61 is installed in the central chamber 62 to support the chassis 4, so that the chassis 4 can rotate about the central shaft 61.

Further, the driving device includes a driving motor 63, a certain space is provided between the end of the central shaft 61 and the central cavity 62, the driving motor 63 is installed at the end of the central shaft 61, the output shaft of the driving motor 63 is parallel to the central shaft 61, a gear 64 is installed on the output shaft of the driving motor 63, the inner wall of the central cavity 62 is provided with an inner tooth 65, the inner tooth 65 is meshed with the gear 64, the gear 64 is driven to rotate by the rotation of the driving motor 63, the chassis 4 is further driven to start rotating, the rotation angle of the chassis 4 can be accurately controlled by controlling the driving motor 63, and the whole driving device is built in the central cavity 62, so that the occupied drawer space of the driving device is greatly reduced, the appearance is more compact, and the driving device is prevented from being disturbed by the outside and losing efficacy.

Further, the lifting mechanism of the box body in the application is also provided with a lifting structure capable of driving all the box bodies 3 to lift.

Further, the lifting structure comprises an annular chamber 71, a threaded sleeve 72 and an orienting device 73; wherein the annular chamber 71 is arranged outside the central chamber 62, the annular chamber 71 and the central chamber 62 are coaxially arranged, and the annular chamber 71 is provided with a mounting opening facing downwards; the thread sleeve 72 is of a tubular sleeve structure, the thread sleeve 72 is internally arranged in the annular cavity 71, a first thread 711 is arranged on the wall of the inner ring of the annular cavity 71, a second thread 721 is arranged on the inner side of the thread sleeve 72, the first thread 711 and the second thread 721 are matched, the thread sleeve 72 can be installed on the central shaft 61 in a unidirectional rotation mode and can not move along the axial direction of the central shaft 61, when the chassis 4 rotates clockwise, the thread sleeve 72 and the annular cavity 71 are screwed, and meanwhile, the thread sleeve 72 is driven to rotate in the rotation direction of the chassis 4, the lifting function of a certain box body 3 is achieved, when the chassis 4 rotates anticlockwise, the thread sleeve 72 cannot rotate reversely, so that the thread sleeve 72 and the annular cavity 71 are unscrewed, the chassis 4 is lifted up while rotating under the action of the threads, and the lifting function of all box bodies 3 is achieved.

Further, the unidirectional rotation of the threaded sleeve 72 is achieved in the present application by the orientation means 73, wherein the orientation means 73 essentially comprise: the flange 731 is arranged at the lower end of the threaded sleeve 72, the flange 731 is positioned outside the annular chamber 71, the flange 731 is arranged parallel to the chassis 4 and below the chassis 4, and the flange 731 is provided with positioning holes uniformly arranged around the axis of the flange 731.

The orientation device 73 further includes a double-headed pin holder 733, as shown in fig. 3, the double-headed pin holder 733 mainly includes a bottom plate 7331, a spring 7332, a first pin 7333 and a second pin 7334, the bottom plate 7331 is disposed below the flange 731 and abuts against the flange 731, the first pin 7333 and the second pin 7334 are disposed on the upper surface of the bottom plate 7331, the length of the first pin 7333 is smaller than that of the second pin 7334, the first pin 7333 passes through the positioning hole to perform the function of positioning the threaded sleeve 72, and the second pin 7334 abuts against the bottom plate 4, so that when the bottom plate rotates clockwise, the second pin 7334 is pressed down, the second pin 7334 drives the entire bottom plate 7331 to press down, and at this time, the first pin 7333 moves downward to disengage from the positioning hole, so that the threaded sleeve 72 can rotate along with the rotation of the bottom plate 4; meanwhile, the orientation device 73 further comprises a one-way bearing 734 arranged between the threaded sleeve 72 and the central shaft 61, the one-way bearing 734 can further ensure that the threaded sleeve 72 can only rotate in a single direction (clockwise in this case), a certain box body 3 is rotated to the telescopic mechanism to be ejected by rotating the chassis 4 clockwise, and when the storage and the taking are completed, the box body returns, the driving device drives the chassis 4 to rotate reversely by a certain angle, the solid threaded sleeve 72 does not rotate, the chassis 4 rises by a certain range, the spring 7332 is arranged on the lower surface of the bottom plate 7332 and abuts against the lower end face of the drawer 1, and the first pin 7333 is inserted into the positioning hole under the action of the spring 7332 to be positioned again.

It should be further noted that, when all the boxes 3 need to be taken out, the present application reverses through the driving device, and drives the chassis 4 to rotate anticlockwise, while the threaded sleeve 72 does not rotate, the chassis 4 continuously rises, so that the user stores food, and after the storage is completed, the driving device rotates forward to drive the chassis 4 to rotate clockwise, and at this time, the first pin 7333 positions the threaded sleeve 72, so that the chassis 4 is convenient for descend normally.

The internal teeth 65 in the present embodiment are provided along the axial direction of the center chamber 62, so that it is ensured that the internal teeth 65 can always mesh with the gear 64 as the chassis 4 is lifted.

Further, the double-headed boss 733 further includes a cover 7335, and the cover 7335 is fixed on the drawer 1 and disposed between the bottom plate 7331 and the flange 731 to limit the movement of the bottom plate 7331, thereby improving the stability of the double-headed boss 733.

Further, the lifting structure in the present application further includes a controller (not shown in the figure) and a position sensor, the controller is electrically connected with the motor of the telescopic mechanism and the driving motor 63, and the controller further includes a key, and selects to take out part of the box body or all of the box body functions through the key.

When a user selects to take out a single box body, the controller controls the drawer 1 to be automatically opened and drawn out (the conventional technical scheme in the prior art is not repeated in the application), when the position sensor detects that the outward drawn-out distance of the drawer 1 is half of the length of the drawer (namely, a preset value), the controller controls the driving motor 63 to rotate forward by a certain angle (the driving motor 63 is provided with an encoder, and the rotating angle of the chassis 4 can be controlled), the designated box body 3 rotates to the telescopic end 51 of the telescopic mechanism 5, the telescopic mechanism 5 is simultaneously opened to eject the corresponding box body 3, the push-out action of the drawer 1 in the function is synchronous with the rotating action of the driving motor 63, and the box-out speed is accelerated.

When the user selects to take out all the boxes, the controller controls the drawer 1 to be pulled out to the limit distance, when the position sensor detects that the drawer 1 is pulled out to the limit position (which is a preset value in the mode), the controller controls the driving motor 63 to rotate reversely, so that the chassis 4 is driven to move upwards integrally, all the boxes 3 are taken out, and after the storage is completed, the user selects a closing option, and the drawer and the chassis return automatically.

Further, as shown in fig. 4 and 5, in one embodiment, the position sensor is a switch button 9, the switch button 9 is disposed in the extraction direction of the drawer 1, and a boss 8 is disposed on the outer side of the drawer 1, the boss 8 is opposite to the switch button 9, and when the drawer 1 touches the boss 8 during extraction, a detection signal is sent to the controller.

It should be noted that, the clockwise rotation of the middle chassis 4 is downward, the counterclockwise rotation is upward, and in other embodiments, the clockwise rotation may be upward, and the counterclockwise rotation may be downward.

The application also provides a refrigerator, which comprises the lifting mechanism of the box body.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The utility model provides a elevating system of box body, includes drawer, its characterized in that still includes: a plurality of box bodies arranged in the drawer; is arranged in the drawer and performs telescopic movement towards the opening direction of the drawerTelescopic mechanismThe method comprises the steps of carrying out a first treatment on the surface of the The chassis is arranged at the bottom of the drawer and can move towards the telescopic end of the telescopic mechanism, and the box body is arranged on the chassis so as to move to the telescopic end along with the chassis;

the chassis is a turntable, a plurality of box bodies are arranged along the rotation direction of the turntable, the turntable is provided with openings corresponding to the box bodies, and when the openings are opposite to the telescopic mechanisms, the telescopic ends of the telescopic mechanisms can penetrate through the openings to eject the box bodies corresponding to the openings;

the telescopic mechanism is a scissor mechanism;

further comprises: a rotating structure for driving the turntable to rotate;

the rotating structure includes: the central cavity is arranged in the middle of the turntable and used for installing the central shaft, and the driving device is used for driving the turntable to rotate by taking the central shaft as a rotating center;

further comprises: the lifting structure drives the turntable to move back and forth towards the opening direction of the drawer, the controller and the position sensor are arranged in the drawing direction of the drawer to detect the drawing distance of the drawer, and the controller is electrically connected with a motor of the telescopic mechanism and a driving motor of the driving device;

the user selects to take out single box body, and position sensor detects that the drawer is outwards taken out to preset value, the controller control driving motor corotation rotates one of them box body to telescopic machanism's flexible end, the controller control telescopic machanism opens simultaneously and ejects the box body.

2. The lifting mechanism of claim 1, wherein the driving means comprises: the output shaft of the driving motor is parallel to the central shaft; and the gear is arranged on the output shaft of the driving motor, and the internal teeth are arranged on the inner wall of the central cavity and meshed with the gear.

3. The lifting mechanism of claim 1, wherein the lifting mechanism comprises: the annular chamber is arranged outside the central chamber and is provided with a first thread; the thread sleeve is arranged in the annular cavity, can be sleeved on the central shaft in a unidirectional rotation manner, and comprises a second thread matched with the first thread.

4. A lifting mechanism for a box according to claim 3, wherein the lifting mechanism further comprises orientation means for ensuring unidirectional rotation of the threaded sleeve, the orientation means comprising:

the flange is arranged at the end part of the thread sleeve, a gap is reserved between the flange and the turntable and is arranged outside the annular cavity, and a positioning hole is formed in the flange;

the double-head pin seat comprises a bottom plate arranged between the flanging and the bottom of the drawer, an elastic piece arranged between the bottom plate and the bottom of the drawer, a first pin arranged on the bottom plate and extending into the positioning hole, and a second pin arranged on the bottom plate and parallel to the first pin, wherein the second pin is propped against the turntable;

and the one-way bearing is arranged between the central shaft and the threaded sleeve.

5. The lifting mechanism of claim 4, wherein the double-ended keyway further comprises a cover secured to the drawer and disposed between the base and the flange to limit movement of the base.

6. The lifting mechanism of claim 1, wherein the position sensor is a switch button and the drawer includes a boss corresponding to the switch button to touch the switch button.

7. A lifting method of a box body, characterized in that the box body comprises a lifting mechanism of any one of claims 1 to 6, and when the size of the drawing part of the drawer reaches a limit position, the lifting mechanism drives the chassis to lift.

8. A refrigerator comprising the lifting mechanism of the cartridge according to any one of claims 1 to 6.