CN112629139A - Lifting mechanism of box body, lifting method of lifting mechanism and refrigerator - Google Patents

Abstract

The invention discloses a box body lifting mechanism, 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 rotating disc, the rotating disc 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 rotary table, a driving motor is arranged on the central shaft, a gear is arranged on an output shaft of the driving motor, inner teeth are arranged on the inner wall of the central cavity, an annular cavity is arranged outside the central cavity, first threads are arranged in the annular cavity, a threaded sleeve is arranged in the annular cavity, a one-way bearing is arranged between the threaded sleeve and the central shaft, and the threaded sleeve is in threaded connection with the central cavity; the end part of the threaded sleeve is provided with a flange, the flange is provided with a positioning hole, and a first screw is arranged in the positioning hole. Compared with the prior art, the invention is convenient for users to store and take, can improve the box discharging speed, and has higher automation degree and more intelligence.

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 box body lifting mechanism, a box body lifting method and a refrigerator.

Background

Along with the improvement of the living standard of people, the intelligent requirement on the refrigerator is higher and higher. Although the existing refrigerator drawer box body has a lifting function, the box body can be lifted and ejected out only by completely drawing out the drawer, so that the box discharging speed is low, and the automation degree is low; simultaneously, current box body is bulky, and the storage article kind is miscellaneous, and access all needs take out whole box body at every turn, is not convenient for access food, and is not intelligent enough, can't satisfy user's demand.

Disclosure of Invention

The invention provides a box body lifting mechanism, a box body lifting method 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 utility model provides a lifting mechanism of box body, includes the drawer, still includes: a plurality of box bodies arranged inside the drawer; the telescopic mechanism is arranged in the drawer and performs telescopic motion 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 to move to the telescopic end along with the chassis.

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

Furthermore, the turntable is provided with openings corresponding to the box bodies, and the telescopic mechanism penetrates through the openings.

Further, the telescopic mechanism is a scissor fork mechanism.

Furthermore, the lifting mechanism of the box body also comprises a rotating structure which drives the turntable to rotate.

Further, the rotating structure includes: the central shaft is arranged at the bottom of the drawer, the central chamber is arranged in the middle of the turntable and used for mounting the central shaft, and the driving device is used for driving the turntable to rotate by taking the central shaft as a rotation center.

Further, the driving device includes: the driving motor is arranged on the central shaft, and an output shaft of the driving motor is parallel to the central shaft; locate gear on the driving motor output shaft locates on the central cavity inner wall and with gear engagement's internal tooth.

Furthermore, the lifting mechanism of the box body also comprises a lifting structure which drives 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 first threads; the thread sleeve is arranged in the annular chamber and can be sleeved on the central shaft in a one-way rotating mode, and the thread sleeve comprises a second thread matched with the first thread.

Further, the elevation structure still includes the orienting device who guarantees the screw thread cover unidirectional rotation, orienting device includes: the turnup is arranged outside the annular cavity and has a gap with the rotary table, and a positioning hole is formed in the turnup; the double-end pin base comprises a bottom plate arranged between the flanging and the bottom of the drawer, an elastic part 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 abuts against the rotary table; and the one-way bearing is arranged between the central shaft and the threaded sleeve.

Furthermore, the double-end pin seat also comprises a cover body which is fixed on the drawer and arranged between the bottom plate and the flanging so as to limit the movement of the bottom plate.

Further, the lifting structure further comprises: the drawer drawing device comprises a controller for controlling the rotation of the driving motor and a sensor arranged on the drawing direction of the drawer to detect 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.

When the size of the drawn 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 to lift.

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

A refrigerator comprises the lifting mechanism of the box body.

Compared with the prior art, the plurality of box bodies are arranged inside the drawer, and a specific chassis can be taken out through the telescopic mechanism through the movable chassis, so that the whole drawer does not need to be lifted, and a user can conveniently store and take the drawer; simultaneously, compared with the prior art, the box discharging speed is improved, the automation degree is higher, and the box discharging device is more intelligent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic diagram of a sectional structure of a lifting mechanism of a cartridge according to the present invention;

FIG. 2 is a schematic diagram showing a partial structure of a lifting mechanism of a cartridge according to the present invention;

FIG. 3 is a schematic diagram of the construction of a dual head pin boss of the present invention;

FIG. 4 is a schematic diagram showing a sectional structure in the drawing direction of the drawer according to the present invention;

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

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present 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 merely illustrative of the invention and are not intended to limit the invention.

The application provides a lifting mechanism of a box body, as shown in figures 1 and 2, the lifting mechanism of the box body comprises a drawer 1, the drawer 1 is arranged in a box container 2 of a refrigerator, an opening is formed above the drawer 1, and the drawer 1 can be pulled and pulled to store and take food; according to the food box, the plurality of box bodies 3 are arranged in the drawer 1, the box bodies 3 can store different foods in a classified mode, on one hand, taint of odor can be prevented, on the other hand, a user can take out the specific box body 3 conveniently to take out specific food materials, and the user does not need to find the specific food materials; a chassis 4 is arranged at the bottom inside the drawer 1, the chassis 4 is used for placing the box bodies 3, the box bodies 3 are placed on the chassis 4 in 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 at drawer 1 inside, and telescopic machanism 5 is including flexible end 51, and flexible end 51 is towards the opening direction of drawer 1, and chassis 4 moves about 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 this moment, the user of being convenient for takes.

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

In other embodiments, the chassis 4 may also drive the box body to move by other means, such as a slide rail, a slider structure, and the like.

Further, a plurality of openings 41 are further arranged on the chassis 4 (the turntable), the openings 41 correspond to the box bodies one by one, namely, an opening 41 is correspondingly arranged below each box body, the telescopic mechanism 5 is arranged below the turntable, the telescopic end 51 is positioned on a rotating path of the openings 41, when the turntable rotates to a certain angle, the turntable stops, the opening 41 is opposite to the telescopic mechanism 5, the telescopic mechanism 5 is telescopic and passes through the opening 41, and then the box body corresponding to the opening 41 is ejected out.

Preferably, telescopic machanism 5 in this embodiment sets up to cutting the fork mechanism, cuts the contraction of fork mechanism or expansion through the motor drive, cuts the fork mechanism and has higher stability, and comparatively wide flexible end and higher bearing capacity make work efficiency higher, and safety is more ensured.

Further, drive the carousel through revolution mechanic in this embodiment and rotate to further improve the automation level of this 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 inside the drawer 1 and 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 cylindrical 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 around the central shaft 61.

Further, the driving device comprises a driving motor 63, a certain space is provided between the end of the central shaft 61 and the central chamber 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, internal teeth 65 are arranged on the inner wall of the central chamber 62, the internal teeth 65 are meshed with each other in the gear 64, the gear 64 is driven to rotate through the rotation of the driving motor 63, the chassis 4 is further driven to rotate, the rotation angle of the chassis 4 can be accurately controlled by controlling the driving motor 63, the drawer space occupied by the driving device is greatly reduced by arranging the whole driving device in the central chamber 62, the appearance is simpler, and the failure of the driving device caused by external interference is avoided.

Further, the elevating system of box body still has the elevation structure that can drive whole box body 3 and go up and down in this application.

Further, the lifting structure comprises an annular chamber 71, a threaded sleeve 72 and an orientation means 73; the annular chamber 71 is arranged outside the central chamber 62, the annular chamber 71 and the central chamber 62 are coaxially arranged, and a mounting opening is formed in the annular chamber 71 towards the lower part; the threaded sleeve 72 is of a tubular sleeve structure, the threaded sleeve 72 is arranged in the annular chamber 71, a first thread 711 is arranged on the wall of the inner ring of the annular chamber 71, a second thread 721 is arranged on the inner side of the thread sleeve 72, the first thread 711 is matched with the second thread 721, and the threaded sleeve 72 is mounted on the central shaft 61 so as to be capable of unidirectional rotation, is not movable in the axial direction of the central shaft 61, such that, when the chassis 4 is rotated clockwise, the threaded sleeve 72 and the annular chamber 71 are screwed, at the same time, the thread sleeve 72 is driven to rotate along the rotation direction of the chassis 4, the function of lifting one box body 3 is realized, when the chassis 4 rotates anticlockwise, since the threaded sleeve 72 cannot be rotated in the opposite direction, so that the threaded sleeve 72 and the annular chamber 71 are unscrewed, the chassis 4 is lifted while rotating under the action of the screw threads, so that the function of lifting all the box bodies 3 is realized.

Further, the unidirectional rotation of the threaded sleeve 72 is achieved by the orienting device 73 in the present application, wherein the orienting device 73 mainly comprises: the flanging 731 is arranged at the lower end of the threaded sleeve 72, the flanging 731 is positioned outside the annular chamber 71, the flanging 731 is arranged in parallel with the chassis 4 and is positioned below the chassis 4, and the flanging 731 is provided with positioning holes uniformly arranged in a circle around the axis of the flanging 731.

The orientation device 73 further includes a double-headed pin seat 733, as shown in fig. 3, the double-headed pin seat 733 is mainly composed of 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 upper surface of the bottom plate 7331 is provided with the first pin 7333 and the second pin 7334, 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 position the thread bush 72, and the second pin 7334 abuts against the chassis 4, so that when the chassis rotates clockwise, the second pin 7334 is pressed downwards, the second pin 7334 immediately drives the whole bottom plate 7331 to press downwards, and at this time, the first pin 7333 moves downwards to disengage from the positioning hole, so that the thread bush 72 can rotate along with the rotation of the chassis 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 here), one of the box bodies 3 is rotated to the telescopic mechanism to be ejected out by clockwise rotating the chassis 4, after access is completed, the box body returns, the driving device drives the chassis 4 to rotate reversely for a certain angle, the real threaded sleeve 72 does not rotate, the chassis 4 is lifted for a certain range, the spring 7332 is arranged on the lower surface of the bottom plate 7331 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 box bodies 3 need to be taken out, the driving device is rotated reversely to drive the chassis 4 to rotate anticlockwise, the threaded sleeve 72 does not rotate, the chassis 4 is continuously lifted, so that the user can store food, after the storage is completed, the driving device is rotated clockwise to drive the chassis 4 to rotate clockwise, and at the moment, the first pin 7333 positions the threaded sleeve 72, so that the chassis 4 can normally descend.

It should be noted that the internal teeth 65 in this embodiment are arranged along the axial direction of the central chamber 62, thereby ensuring that the internal teeth 65 can always mesh with the gear 64 as the chassis 4 is raised.

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

Further, the lifting structure in this application still includes controller (not shown in the figure) and position sensor, and the controller is connected with telescopic machanism's motor and driving motor 63 electricity, and the controller still includes the button, selects to take out some box bodys or whole box body function through the button.

When the user selects to take out a single box body, the controller controls the drawer 1 to be automatically opened and taken out (the conventional technical scheme in the prior art, which is not repeated in the application), when the position sensor detects that the distance taken out of the drawer 1 is half of the length (namely, the distance is a preset value), the controller controls the driving motor 63 to rotate by a certain angle in the forward rotation mode (the driving motor 63 is provided with an encoder which can control the rotating angle of the chassis 4) to rotate the appointed box body 3 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 outward pushing action of the drawer 1 in the function is synchronously carried out with the rotating action of the driving motor 63, and the box outlet speed is accelerated.

And when the user chooses to take out all the box bodies, the controller controls the drawer 1 to be drawn out to the limit distance, when the position sensor detects that the drawer 1 is drawn out to the limit position (which is a preset value under 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 box bodies 3 are taken out, after the storage and taking are completed, the user chooses to close the 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 drawing direction of the drawer 1, and a boss 8 is further disposed on the outer side of the drawer 1, the boss 8 is disposed opposite to the switch button 9, and when the drawer 1 touches the boss 8 during drawing, a detection signal is sent to the controller.

It should be noted that the above-mentioned clockwise rotation of the middle chassis 4 is a downward movement, and the counterclockwise rotation is an upward movement, and in other embodiments, the clockwise rotation may be an upward movement, and the counterclockwise rotation may be a downward movement.

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

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (16)

1. The utility model provides a lifting mechanism of box body, includes the drawer, its characterized in that still includes: a plurality of box bodies arranged inside the drawer; the telescopic mechanism is arranged in the drawer and performs telescopic motion 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 to move to the telescopic end along with the chassis.

2. The lifting mechanism for a cartridge according to claim 1, wherein the chassis is a turntable, and a plurality of cartridges are arranged in a rotation direction of the turntable.

3. The lifting mechanism for the box bodies according to claim 2, wherein the rotating disc is provided with openings corresponding to the box bodies, and the telescopic mechanism passes through the openings.

4. The lifting mechanism of a box body according to claim 3, wherein the telescoping mechanism is a scissor mechanism.

5. The lifting mechanism of box body according to claim 2, characterized in that the lifting mechanism of box body further comprises a rotating structure for driving the rotating disc to rotate.

6. The lifting mechanism for a cartridge of claim 5, wherein the rotating structure comprises: the central shaft is arranged at the bottom of the drawer, the central chamber is arranged in the middle of the turntable and used for mounting the central shaft, and the driving device is used for driving the turntable to rotate by taking the central shaft as a rotation center.

7. The elevating mechanism of a cartridge according to claim 6, wherein the driving means comprises: the driving motor is arranged on the central shaft, and an output shaft of the driving motor is parallel to the central shaft; locate gear on the driving motor output shaft locates on the central cavity inner wall and with gear engagement's internal tooth.

8. The lifting mechanism of box body according to claim 7, further comprising a lifting structure for driving the rotary plate to move back and forth towards the opening direction of the drawer.

9. The lifting mechanism for a cartridge of claim 8, wherein the lifting mechanism comprises: the annular chamber is arranged outside the central chamber and is provided with first threads; the thread sleeve is arranged in the annular chamber and can be sleeved on the central shaft in a one-way rotating mode, and the thread sleeve comprises a second thread matched with the first thread.

10. The lifting mechanism for a box body according to claim 9, wherein the lifting mechanism further comprises an orientation device for ensuring unidirectional rotation of the threaded sleeve, the orientation device comprising:

the turnup is arranged outside the annular cavity and has a gap with the rotary table, and a positioning hole is formed in the turnup;

the double-end pin base comprises a bottom plate arranged between the flanging and the bottom of the drawer, an elastic part 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 abuts against the rotary table;

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

11. The lift mechanism for a cassette of claim 10, wherein the dual head pin boss further comprises a cover secured to the drawer and disposed between the base and the flange to limit movement of the base.

12. The lifting mechanism for a cartridge of claim 8, wherein the lifting mechanism further comprises: the drawer drawing device comprises a controller for controlling the rotation of the driving motor and a sensor arranged on the drawing direction of the drawer to detect the drawing distance of the drawer, wherein the sensor is connected with the controller.

13. The lifting mechanism for a cartridge of claim 12, wherein the sensor is a switch button, and the drawer includes a boss corresponding to the switch button to touch the switch button.

14. A method for lifting a box, wherein the box comprises a box lifting mechanism according to any one of claims 1 to 13, and when the size of the drawer extraction part reaches a preset value, the chassis moves to drive one of the boxes to the telescopic end of the telescopic mechanism for lifting.

15. A method for lifting a box, wherein the box comprises a lifting mechanism of the box according to any one of claims 8 to 13, and the lifting mechanism drives the chassis to lift when the size of the drawer is a preset value.

16. A refrigerator characterized in that it comprises the lifting mechanism of the cartridge of any one of claims 1 to 13.

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