CN108759281B - Lifting support device and refrigerator with same - Google Patents
Lifting support device and refrigerator with same Download PDFInfo
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- CN108759281B CN108759281B CN201810316921.7A CN201810316921A CN108759281B CN 108759281 B CN108759281 B CN 108759281B CN 201810316921 A CN201810316921 A CN 201810316921A CN 108759281 B CN108759281 B CN 108759281B
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- supporting rod
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- top plate
- bottom plate
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 28
- 230000003028 elevating effect Effects 0.000 claims description 17
- 239000000872 buffer Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/028—Cooled supporting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention provides a lifting support device, comprising: a top plate for carrying an article; the bottom plate is arranged below the top plate; the lifting support is arranged between the top plate and the bottom plate, and each lifting support comprises a first supporting rod and a second supporting rod which are mutually and rotatably connected; the bottom end of the first supporting rod is rotatably connected to the upper surface of the bottom plate, and the bottom end of the second supporting rod is slidably connected with the upper surface of the bottom plate; the top end of the first strut and the top end of the second strut are each configured to movably or slidably contact the lower surface of the top plate; and the first and second struts are configured for controlled relative rotation to produce relative displacement of the top plate relative to the bottom plate in the longitudinal direction. The lifting support device adjusts the longitudinal height of the lifting support by adjusting the rotating angle of the rotatable lifting support, thereby realizing the height adjustment of a top plate for bearing articles. The lifting support device is simple in structure and easy to operate and control.
Description
Technical Field
The invention relates to the technical field of lifting devices, in particular to a lifting supporting device and a refrigerator with the same.
Background
More and more refrigerators are provided with a freezing chamber with a large drawer, the drawer at the bottommost layer in the freezing chamber is closest to the ground, and a user needs to frequently bend down or squat down when using the drawer, which is very inconvenient for a user with poor lumbar vertebra. There are devices in the prior art that use a spring to raise the height of the drawer. The spring force of the spring is limited and therefore it limits the height of the lifting drawer and the weight of the articles it carries. In addition, the elastic fatigue of the spring increases along with the service life of the device, and the device cannot reliably work for a long time, so that the service cost is increased.
Disclosure of Invention
One object of the present invention is to provide a lifting support device with a stable and controllable lifting height.
A further object of the present invention is to enhance the reliability and stability of the elevating support.
In particular, the present invention provides a lifting support device comprising:
a top plate for carrying an article;
a bottom plate disposed below the top plate; and
the lifting support is arranged between the top plate and the bottom plate, and each lifting support comprises a first supporting rod and a second supporting rod which are mutually and rotatably connected; wherein
The bottom end of the first supporting rod is rotatably connected to the upper surface of the bottom plate, and the bottom end of the second supporting rod is slidably connected with the upper surface of the bottom plate; and
the top end of the first strut and the top end of the second strut are each configured to be movably or slidably in contact with the lower surface of the top plate; and is
The first and second struts are configured for controlled relative rotation to produce relative displacement of the top plate relative to the bottom plate in a longitudinal direction.
Furthermore, the number of the lifting supports is two, and the two lifting supports are arranged between the top plate and the bottom plate at intervals in a mirror symmetry manner; and is
The bottom ends of the two first supporting rods are respectively hinged to the rear end parts of the two transverse sides of the upper surface of the bottom plate; and
every the middle part position of first branch is formed with the lift pivot, every the middle part position of second branch be formed with lift pivot complex lift rotary tank, just the lift pivot is configured into rotationally to be inserted the lift rotary tank, in order the bottom of second branch is in the bottom plate the gliding in-process of upper surface makes first branch with second branch is for moving the lift pivot rotates.
Further, the top ends of the two first support rods and the top ends of the two second support rods are configured to slidably abut against the lower surface of the top plate, and the lower surface of the top plate is provided with four top sliding grooves extending in the front-back direction so as to respectively limit the sliding directions of the top ends of the two first support rods and the top ends of the two second support rods; and
two bottom sliding grooves extending in the front-back direction are formed in the upper surface of the bottom plate, so that the sliding directions of the bottom ends of the second supporting rods are limited respectively.
Further, the elevating support device further includes:
the two sliding seats are configured to be hinged with the bottom ends of the two second supporting rods respectively, and the bottoms of the two sliding seats are provided with at least one pulley respectively so that the two sliding seats can slide back and forth along the two bottom sliding grooves respectively; and is
Each sliding seat is provided with a groove for accommodating at least part of the bottom end of the second supporting rod, the bottom wall of the groove is configured to form an acute angle with the upper surface of the bottom plate, and the rear part of the bottom wall is higher than the front part of the bottom wall so as to prevent the second supporting rod from being attached to the bottom plate.
Further, the elevating support device further includes:
the driving part is arranged on the upper surface of the bottom plate and is configured to be controlled to selectively output forward or backward driving force; and
the transmission connecting rod is configured to connect the driving part and the bottom ends of the two second supporting rods; wherein
The transmission connecting rod is configured to transmit the driving force to the bottom ends of the two second supporting rods synchronously and drive the bottom ends of the two second supporting rods to move forwards or backwards synchronously, so that the top plate moves downwards or upwards along with the rotation of the first supporting rod and the second supporting rod.
Further, the driving part includes:
the driving motor is movably arranged on the upper surface of the bottom plate and is provided with an output shaft which is configured to be controlled to rotate towards two opposite directions alternatively;
a drive gear configured to be coaxially coupled with the output shaft to rotate with the output shaft; and
a driving rack extending in a front-rear direction on the upper surface of the base plate and configured to be engaged with the driving gear so that the driving gear moves in the front-rear direction when rotating; wherein
The transmission connecting rod is configured to be vertically connected to the transmission gear together with the rack, so that the bottom ends of the two second supporting rods synchronously move along the front-back direction under the driving of the transmission gear.
Further, the elevating support device further includes:
the auxiliary support is arranged between the top plate and the bottom plate far away from the bottom ends of the two first supporting rods, and comprises a third supporting rod and a fourth supporting rod which are mutually rotatably connected, and the rotating centers of the third supporting rod and the fourth supporting rod are respectively positioned in the middle positions of the third supporting rod and the fourth supporting rod; wherein
The top ends of the third supporting rod and the fourth supporting rod are movably abutted against the lower surface of the top plate, and the bottom ends of the third supporting rod and the fourth supporting rod are movably connected with the upper surface of the bottom plate; and is
The moving directions of the bottom ends of the third supporting rod and the fourth supporting rod are not parallel to the moving directions of the bottom ends of the two second supporting rods; and
the third supporting rod and the fourth supporting rod are configured to be controlled to rotate relatively so as to change the heights of the top ends of the third supporting rod and the fourth supporting rod and continuously abut against the lower surface of the top plate.
Further, the elevating support device further includes:
the auxiliary motor is fixed on the bottom plate and is configured to be controlled to output two rotation driving forces in opposite directions;
an auxiliary gear configured to be coaxially connected with an output shaft of the auxiliary motor;
an auxiliary rack slidably provided on the upper surface of the bottom plate in a moving direction of a bottom end of the third bar or a moving direction of a bottom end of the fourth bar and configured to be engaged with the auxiliary gear to slide when the auxiliary gear rotates; wherein
The bottom end of the third supporting rod or the bottom end of the fourth supporting rod is configured to be rotatably connected with the auxiliary rack so as to move under the driving of the auxiliary rack.
Further, the elevating support device further includes:
at least one buffer member disposed on the lower surface of the top plate and configured to be compressed to be contracted in a longitudinal direction; and
at least one cushion seat disposed on the upper surface of the base plate opposite to the at least one cushion member, respectively, configured to receive the at least one cushion member, respectively, when the at least one cushion member moves downward to contact the upper surface of the base plate.
The present invention also provides a refrigerator including a cabinet and the elevation support apparatus according to any one of the above, wherein,
at least one storage room is limited in the box body, and the lifting support device is arranged in the at least one storage room; and is
The lifting support device is configured to be controllably moved into or out of the at least one storage compartment.
The lifting support device adjusts the longitudinal height of the lifting support by adjusting the rotating angle of the rotatable lifting support, thereby realizing the height adjustment of a top plate for bearing articles. The lifting support device is simple in structure and easy to operate and control.
Further, the lifting support device of the invention can ensure that the top plate can realize higher lifting height under the condition of ensuring the stability of the top plate through the auxiliary bracket arranged in non-parallel with the lifting bracket.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic perspective view of a lift support in a raised position according to one embodiment of the present invention;
FIG. 2 is a schematic perspective view of a lift support device in a lowered position according to one embodiment of the present invention;
FIG. 3 is a schematic perspective view of the elevation support apparatus of FIG. 1, viewed from below;
FIG. 4 is a schematic enlarged partial view of the elevation support apparatus shown in FIG. 3;
FIG. 5 is a schematic perspective view of the lift support device ascending according to another embodiment of the present invention;
FIG. 6 is a schematic enlarged partial view of the elevation support apparatus shown in FIG. 5;
FIG. 7 is a schematic block diagram of a lift bracket and drive portion of a lift support according to one embodiment of the present invention;
FIG. 8 is a schematic structural view of a lifting bracket and a driving part of the lifting support device according to one embodiment of the present invention, as viewed from another angle;
FIG. 9 is a schematic top view of a drive section of a lift support according to one embodiment of the present invention;
FIG. 10 is a schematic side view of a lift support in a raised position according to one embodiment of the present invention;
FIG. 11 is a schematic side view of a lift support in a lowered position according to one embodiment of the present invention;
FIG. 12 is a schematic enlarged partial view of the elevation support apparatus shown in FIG. 11;
FIG. 13 is a schematic front view of a lift support in a raised position according to one embodiment of the present invention;
FIG. 14 is a schematic top view of a lift support according to one embodiment of the present invention;
FIG. 15 is a schematic bottom view of a lift support according to one embodiment of the present invention;
fig. 16 is a schematic view of a refrigerator mounted with a lifting support device according to one embodiment of the present invention.
Detailed Description
FIG. 1 is a schematic perspective view of a lift support in a raised position according to one embodiment of the present invention.
FIG. 2 is a schematic perspective view of a lift support device in a lowered position according to one embodiment of the present invention. The elevation support apparatus 20 may generally include a top plate 30 for carrying an article, a bottom plate 40 disposed therebelow, and at least one elevation bracket 50 for supporting elevation. At least one lifting bracket 50 is disposed between the top plate 30 and the bottom plate 40, and each lifting bracket 50 includes a first bar 51 and a second bar 52 rotatably coupled to each other. Specifically, the bottom end of the first rod 51 is rotatably connected to the upper surface of the base plate 40, and the bottom end of the second rod 52 is slidably connected to the upper surface of the base plate 40. The bottom end of the second leg 52 and the base plate 40 may be in direct contact or indirect contact. The top end of the first bar 51 and the top end of the second bar 52 are each configured to be movably or slidably in contact with the lower surface of the top plate 30. Further, the first and second struts 51, 52 are configured for controlled relative rotation to produce relative longitudinal displacement of the top plate 30 relative to the bottom plate 40.
Specifically, the top plate 30 and the bottom plate 40 may have substantially the same size and may be horizontally disposed at intervals, and the first and second support rods 51 and 52 of the lifting bracket 50 may have substantially the same effective height (i.e., the same length in the projection of the two in the longitudinal direction) to horizontally support the top plate 30 above the bottom plate 40. When a user needs to adjust the height of the top plate 30 to access the article, the movable end of the first rod 51 or the second rod 52 can be controlled to move, and since the bottom end of the first rod 51 is only rotatably connected to the bottom plate 40, the moving end will drive the first rod 51 and the second rod 52 to rotate, so that the projection length of the first rod 51 and the second rod 52 in the longitudinal direction is changed, thereby achieving the height adjustment of the top plate 30.
The elevation supporting apparatus 20 of the present invention adjusts the longitudinal height of the elevation bracket 50 by adjusting the rotation angle of the rotatable elevation bracket 50, thereby achieving height adjustment of the top plate 30 for carrying an article. The lifting support device 20 of the present invention is simple in structure and easy to operate and control.
Fig. 3 is a schematic perspective view of the elevation support apparatus of fig. 1, as viewed from below. Fig. 4 is a schematic partially enlarged view of the elevation support apparatus shown in fig. 3. Fig. 5 is a schematic perspective view of the elevation support apparatus ascending according to another embodiment of the present invention. Fig. 6 is a schematic partially enlarged view of the elevation support apparatus shown in fig. 5. Fig. 7 is a schematic structural view of a lifting bracket and a driving part of the lifting support device according to one embodiment of the present invention. Fig. 8 is a schematic structural view of a lifting bracket and a driving part of the lifting support device according to an embodiment of the present invention, as viewed from another angle.
In some embodiments of the present invention, the number of the lifting brackets 50 is two, and the two lifting brackets 50 are spaced apart in a mirror-image symmetry between the top plate 30 and the bottom plate 40. Specifically, the bottom ends of the two first struts 51 are respectively hinged to the rear end portions of the lateral sides of the upper surface of the base plate 40. A lifting rotation shaft 510 is formed at a middle position of each first support bar 51, a lifting rotation groove 520 engaged with the lifting rotation shaft 510 is formed at a middle position of each second support bar 52, and the lifting rotation shaft 510 is configured to be rotatably inserted into the lifting rotation groove 520 so as to rotate the first support bar 51 and the second support bar 52 relative to the moving lifting rotation shaft 510 during the sliding of the bottom end of the second support bar 52 on the upper surface of the base plate 40.
That is, the two elevating brackets 50 provide four supporting points for the top plate 30 to ensure stable elevating thereof. The rotation centers of the first and second struts 51 and 52 may be correspondingly disposed at the middle positions thereof, respectively. The middle position may be the center of the first and second struts 51 and 52 in the length direction, or may be other positions near the center. Further, the lifting/lowering rotating groove 520 may have a long bar shape to allow the lifting/lowering rotating shaft 510 to move and rotate therein. Therefore, when the bottom end of the first supporting rod 51 hinged to the bottom plate 40 is jammed, the lifting rotating groove 520 can prevent the lifting bracket 50 from being jammed by guiding the lifting rotating shaft 510 to move in the groove hole. Preferably, the elevation rotation groove 520 may be configured as a groove hole penetrating the second bar 52 in an axial direction of the elevation rotation shaft 510, thereby allowing the elevation rotation shaft 510 to be inserted into and penetrate the second bar 52, ensuring stability of connection therebetween.
In some embodiments of the present invention, the top ends of the two first struts 51 and the top ends of the two second struts 52 are configured to slidably abut against the lower surface of the top plate 30, and the lower surface of the top plate 30 is opened with four top sliding grooves 32 extending in the front-back direction to respectively define the sliding directions of the top ends of the two first struts 51 and the top ends of the two second struts 52. The upper surface of the bottom plate 40 is opened with two bottom sliding grooves 42 extending in the front-rear direction to respectively define the sliding directions of the bottom ends of the two second struts 52.
That is, the first and second support rods 51 and 52 of one of the elevating brackets 50 may slide back and forth near the left end edges of the top and bottom plates 30 and 40, and the first and second support rods 51 and 52 of the other elevating bracket 50 may slide back and forth near the right end edges of the top and bottom plates 30 and 40. Since the first and second struts 51 and 52 have a certain thickness, the two sliding grooves on the same side can be correspondingly staggered to avoid the first and second struts 51 and 52 interfering with each other during rotation. Further, the top and bottom ends of the slidable first and second struts 51 and 52 may be provided with rolling wheels to make the movement thereof with respect to the top or bottom plate 30 or 40 smoother. Specifically, a rolling wheel is rotatably connected to each of the top end of each first strut 51 and the top and bottom ends of each second strut 52. The rolling wheel may be configured to have a thickness that fits snugly into the chute to more stably roll along the top chute 32 or the bottom chute 42 while guiding the respective top and bottom ends for movement within the respective chute.
FIG. 10 is a schematic side view of a lift support in a raised position according to one embodiment of the present invention. FIG. 11 is a schematic side view of a lift support in a lowered position according to one embodiment of the present invention. Fig. 12 is a schematic partially enlarged view of the elevation support apparatus shown in fig. 11.
In some embodiments of the present invention, the elevation support apparatus 20 further comprises two sliding blocks 60. The two sliding seats 60 are configured to be hinged to the bottom ends of the two second support rods 52, and the bottom portions of the two sliding seats 60 are respectively provided with at least one pulley 61 so that the two sliding seats 60 respectively slide back and forth along the two bottom sliding grooves 42. Each sliding seat 60 is provided with a groove 62 for accommodating at least part of the bottom end of the second strut 52, the bottom wall 620 of the groove 62 is configured to form an acute angle with the upper surface of the bottom plate 40, and the rear part of the bottom wall 620 is higher than the front part thereof to prevent the second strut 52 from being attached to the bottom plate 40.
That is, the two aforementioned rolling wheels at the bottom ends of the two second struts 52 may be replaced with the sliding seats 60. Specifically, the middle or upper portion of the sliding seat 60 and the bottom end of the second support rod 52 may be rotatably connected by a hinge, and the lower portion of the sliding seat 60 may be provided with a pulley 61 for sliding back and forth along the bottom sliding groove 42. In particular, the recess 62 formed in the sliding seat 60 may have an inclined bottom wall 620. When the sliding seat 60 drives the bottom end of the second supporting rod 52 to be far away from the bottom end of the first supporting rod 51, the second supporting rod 52 and the first supporting rod 51 gradually approach to be parallel to the bottom plate 40, when the sliding seat 60 slides to the foremost end, the inclined bottom wall 620 can ensure that the first supporting rod 51 and the second supporting rod 52 are not attached to the bottom plate 40 at the moment, but a certain angle is reserved, so that the sliding seat 60 can smoothly drive the bottom end of the second supporting rod 52 to move towards the bottom end of the first supporting rod 51 again when the top wall is lifted next time, and therefore, the second supporting rod 52 and the first supporting rod 51 can be driven to rotate only through the sliding seat 60 moving back and forth.
Fig. 9 is a schematic top view of a driving part of the elevation supporting apparatus according to one embodiment of the present invention.
In some embodiments of the present invention, the elevation support apparatus 20 further comprises a drive portion 70 and a transmission link 74. The driving part 70 is disposed on the upper surface of the base plate 40 and configured to be controlled to selectively output a forward or backward driving force. The transmission link 74 is configured to connect the driving part 70 and the bottom ends of the two second struts 52. Further, the transmission link 74 is also configured to transmit the driving force to the bottom ends of the two second supporting rods 52 synchronously, and drive the bottom ends of the two second supporting rods 52 to move forwards or backwards synchronously, so that the top plate 30 moves downwards or upwards along with the rotation of the first supporting rod 51 and the second supporting rod 52.
Specifically, the transmission link 74 can be connected and fixed with the two sliding seats 60 at the same time, and the rotation motion of the second support rod 52 and the first support rod 51 can be realized by driving the two sliding seats 60 to move synchronously in the front-back direction. When the user needs to lift the top plate 30, the control driving part 70 outputs a backward driving force, and the backward driving force drives the transmission link 74 to move the bottom end of the second strut 52 backward through the two sliding seats 60. Thus, the bottom end of the second rod 52 gradually approaches the bottom end of the first rod 51, the centers of rotation of the two gradually move upward, and the top plate 30 moves upward. Accordingly, if the user wants to lower the top panel 30 after completing the loading and unloading of the article, the driving unit 70 may be controlled to output a forward driving force.
In other embodiments of the present invention, the top chutes 32 respectively located at the left and right sides of the top plate 30 may also be arranged in mirror symmetry at a certain angle, and the bottom chutes 42 may also be arranged obliquely correspondingly, so that the projections of the two lifting brackets 50 on the top plate 30 and the bottom plate 40 form two sides of an isosceles trapezoid. In this embodiment, the transmission link 74 for connecting the bottom ends of the two second supports 52 may be arranged to be telescopic, so that the transmission link 74 moving only in the front-back direction moves the bottom ends of the two second struts 52.
In some embodiments of the present invention, the driving part 70 includes a driving motor 71, a driving gear 72, and a driving rack 73. The driving motor 71 is movably disposed on the upper surface of the base plate 40 and has an output shaft configured to be controlled to rotate in two opposite directions. The drive gear 72 is configured to be coaxially coupled to the output shaft for rotation therewith. A driving rack 73 is provided on an upper surface of the base plate 40 to extend in the front-rear direction, and is configured to be engaged with the driving gear 72 so that the driving gear 72 moves in the front-rear direction when rotated. Further, the transmission link 74 is configured to be connected to the transmission gear 72 perpendicularly to the rack, so that the bottom ends of the two second struts 52 move in the front-back direction synchronously under the driving of the transmission gear 72.
That is, the forward and backward driving forces can be converted and transmitted to the transmission link 74 by the rotational force output from the driving motor 71 through the engagement of the gear and the rack. Specifically, the bottom of the driving motor 71 may be provided with a roller 710 to allow it to smoothly move on the upper surface of the base plate 40. The driving motor 71 may be disposed near a lateral middle position of the base plate 40, and the driving gear 72 may be correspondingly disposed at the lateral middle position of the base plate 40 and coaxially connected to an output shaft protruding from a side of the driving motor 71. The transmission link 74 is disposed in front of the transmission gear 72 in parallel with the shaft sleeves and at intervals, and is connected and fixed by a connection short rod to move synchronously with the transmission gear 72. It should be noted that the aforementioned "front side" refers to the opposite front side away from the rear end of the first support rod 51, so that the two sliding seats 60 can move away from the first support rod 51 to the front side edge of the bottom plate 40 with the transmission link 74, thereby making full use of the area of the bottom plate 40.
Furthermore, it should be understood by those skilled in the art that the terms "front", "back", "left", "right", "horizontal", "longitudinal", "outer", "inner", and the like used in the embodiments of the present invention are used for convenience in describing and understanding the technical solutions of the present invention, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In some embodiments of the present invention, the upper surface of the base plate 40 may be formed with a driving slide 47 configured to be disposed in parallel with the driving rack 73 for guiding the moving direction of the driving motor 71 to be displaced in synchronization with the driving gear 72.
In other embodiments of the present invention, the driving part may also be composed of a micro hydraulic pump and a corresponding connecting member to drive the bottom ends of the two second struts 52 to reciprocate linearly by converting the pressure energy of the liquid into mechanical energy.
FIG. 13 is a schematic front view of a lift support in a raised position according to one embodiment of the present invention. FIG. 14 is a schematic top view of a lift support according to one embodiment of the present invention with the top plate hidden. FIG. 15 is a schematic bottom view of a lift support according to one embodiment of the present invention with the floor hidden.
In some embodiments of the present invention, the elevation support apparatus 20 further comprises an auxiliary support 80. The auxiliary support 80 is disposed between the top plate 30 and the bottom plate 40 away from the bottom ends of the two first support rods 51, and includes a third support rod 83 and a fourth support rod 84 rotatably connected to each other, and the centers of rotation of the third support rod 83 and the fourth support rod 84 are respectively located at the central positions of the third support rod 83 and the fourth support rod 84. The top ends of the third and fourth struts 83, 84 are movably disposed to abut against the lower surface of the top plate 30, and the bottom ends of the third and fourth struts 83, 84 are movably disposed to connect with the upper surface of the bottom plate 40. The third and fourth struts 83, 84 are configured to be controllably rotated relative to each other to change the height at which the top ends thereof are located and to continuously abut against the lower surface of the top plate 30. Further, the moving directions of the bottom ends of the third and fourth struts 83 and 84 are not parallel to the moving directions of the bottom ends of the two second struts 52.
That is, when the bottom end of the second bar 52 moves toward the bottom end of the first bar 51, the top end of the first bar 51 and the top end of the second bar 52 are correspondingly close to each other. In order to achieve a higher lifting height of the top plate 30, the four supporting points of the top plate 30 by the first and second supporting bars 51 and 52 will eventually fall into the rear region of the top plate 30. Therefore, the auxiliary support 80 arranged far away from the bottom end of the first supporting rod 51 can effectively enhance the stability of the supporting rod in the lifting process. Preferably, the bottom ends of the third and fourth struts 83, 84 are configured to move in a direction perpendicular to the top and bottom runners 32, 42, which are parallel to each other.
In some embodiments of the present invention, the elevation support apparatus 20 further comprises: an auxiliary motor 85, an auxiliary gear 82, and an auxiliary rack 81. The auxiliary motor 85 is fixed to the base plate 40 and is configured to be controlled to output two rotational driving forces in opposite directions. The auxiliary gear 82 is configured to be coaxially connected with an output shaft of the auxiliary motor 85. The auxiliary rack 81 is slidably provided on the upper surface of the bottom plate 40 in the moving direction of the bottom end of the third strut 83 or the moving direction of the bottom end of the fourth strut 84, and is configured to engage with the auxiliary gear 82 to slide when the auxiliary gear 82 rotates. Further, the bottom end of the third rod 83 or the bottom end of the fourth rod 84 is configured to be rotatably connected to the auxiliary rack 81 to move by the auxiliary rack 81.
That is, similarly to the driving rack 73 and the driving gear 72, the rotational driving force output from the auxiliary motor 85 is transmitted to the auxiliary bracket 80 by the auxiliary rack 81 and the auxiliary rack 81. Unlike the fixed transmission rack 73 and the movable transmission gear 72, the auxiliary gear 82 and the auxiliary motor 85 are fixed in position, and the auxiliary rack 81 is configured to drive the bottom end of the third strut 83 or the fourth strut 84 to move. Specifically, the auxiliary rack 81 may be configured such that one end thereof is rotatably connected to the bottom end of the third strut 83 or the fourth strut 84 in the vicinity. The upper surface of the bottom plate 40 may be further provided with a rack slide and an auxiliary slide to guide the moving direction of the auxiliary rack 81 and the third bar 83 or the fourth bar 84, which is not connected to the auxiliary rack 81, respectively. Further, the axis of the auxiliary gear 82 may be substantially on the extension line of the transmission rack 73, so as to make the force applied to the bottom plate 40 more uniform. In some embodiments of the present invention, the upper surface of the bottom plate 40 may further be provided with a rack sliding groove 44 and an auxiliary sliding groove 45 which are arranged in parallel, so as to limit the moving direction of the auxiliary rack 81 connected to the third strut 83 or the fourth strut 84 and the moving direction of the other end of the third strut 83 or the fourth strut 84 which is not connected to the auxiliary rack 81, respectively.
In some embodiments of the present invention, the tooth member and the outer side of the gear member may be provided with a shielding portion 878 to prevent the meshing position of the rack and the gear from being exposed to the external environment, and to ensure continuous and stable movement between the rack and the gear.
In some embodiments of the present invention, the elevation support apparatus 20 further comprises at least one buffer member 91 and at least one buffer base 92. At least one buffer member 91 is provided on the lower surface of the top plate 30 and is configured to be compressed to be contracted in the longitudinal direction. The at least one buffer seat 92 is disposed on the upper surface of the base plate 40 opposite to the at least one buffer member 91, respectively, and configured to receive the at least one buffer member 91 when the at least one buffer member 91 moves down to contact the upper surface of the base plate 40, respectively. Specifically, the buffer member 91 may be a compression spring configured to be compressed but not fully compressed when the top plate 30 moves toward the bottom plate 40 in the extreme position, thereby assisting the lifting bracket 50 in supporting the top plate 30 and protecting the driving structures from being pressed by the top plate 30. Two compression springs may be spaced along a diagonal of the lower surface of the top plate 30 to provide a uniform cushioning support force for the top plate 30.
In some embodiments of the present invention, a control main board is further disposed on the bottom plate 40 to control the start and stop of the driving motor 71 and the auxiliary motor 85 and the direction of the driving force output by the driving motor.
In some embodiments of the present invention, the top panel 30 may be square shaped to fit into the storage compartment 10 of a typical household storage device. The top plate 30 may also have a shielding plate 300 extending upward along the peripheral side thereof. The number of the shielding plates 300 may be one or more to shield the space above the top plate 30 on one side or on multiple sides. Such a top panel 30 may be used directly as the storage drawer 11 or may better restrain the storage drawer 11 mounted thereon from sliding off of the carried item or the storage drawer 11 from the lift support device 20. In addition, the connection relation of the top plate 30, the lifting support 50 and each top end of the auxiliary support 80 is the liftoff butt, and the top end can not be separated from the top plate 30 in the butt sliding process through the corresponding slide way, the sliding roller 710 and other structures, so that the stability of the lifting support device 20 is guaranteed, the top plate 30 is convenient to replace, clean and the like, and the practicability of the device is greatly improved.
Fig. 16 is a schematic view of a refrigerator mounted with a lifting support device according to one embodiment of the present invention.
The invention provides a refrigerator 1, which comprises a refrigerator body and the lifting support device 20. Specifically, at least one storage compartment 10 is defined in the box body, and the lifting support device 20 is arranged in the at least one storage compartment 10. The elevation support device 20 is configured to be controllably moved into or out of at least one storage compartment 10. The elevation support device 20 may be preferably provided at the bottom of the lowermost storage compartment 10 of the refrigerator 1 to fully utilize the liftable height thereof. Further, the lateral sides of the bottom plate 40 may be provided with sliding wheels or sliding rails, etc. to facilitate the movement thereof into and out of the storage compartment 10. The control main board may be electrically connected to a display device of the refrigerator 1 so that a user inputs a command for elevation. That is, when a user needs to take and place an object from the bottom area of the refrigerator 1, the user can hook out or push in the lifting support device 20 by using his feet, and then the user can control the control main board through the control interface of the refrigerator 1 to adjust the height of the top board 30 without bending or squatting down.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A lift support apparatus comprising:
a top plate for carrying an article;
a bottom plate disposed below the top plate; and
the lifting support is arranged between the top plate and the bottom plate, and each lifting support comprises a first supporting rod and a second supporting rod which are mutually and rotatably connected; wherein
The bottom end of the first supporting rod is rotatably connected to the upper surface of the bottom plate, and the bottom end of the second supporting rod is slidably connected with the upper surface of the bottom plate; and
the top end of the first strut and the top end of the second strut are each configured to be movably or slidably in contact with the lower surface of the top plate; and is
The first and second struts are configured for controlled relative rotation to produce relative displacement of the top plate relative to the bottom plate in a longitudinal direction; wherein
The upper surface of the bottom plate is provided with two bottom sliding grooves extending along the front-back direction so as to respectively limit the sliding directions of the bottom ends of the two second supporting rods;
the lift strutting arrangement still includes:
the two sliding seats are configured to be hinged with the bottom ends of the two second supporting rods respectively, and the bottoms of the two sliding seats are provided with at least one pulley respectively so that the two sliding seats can slide back and forth along the two bottom sliding grooves respectively; and is
Each sliding seat is provided with a groove for accommodating at least part of the bottom end of the second supporting rod, the bottom wall of the groove is configured to form an acute angle with the upper surface of the bottom plate, and the rear part of the bottom wall is higher than the front part of the bottom wall so as to prevent the second supporting rod from being attached to the bottom plate.
2. The elevating support device according to claim 1,
the number of the lifting supports is two, and the two lifting supports are arranged between the top plate and the bottom plate at intervals in a mirror symmetry manner; and is
The bottom ends of the two first supporting rods are respectively hinged to the rear end parts of the two transverse sides of the upper surface of the bottom plate; and
every the middle part position of first branch is formed with the lift pivot, every the middle part position of second branch be formed with lift pivot complex lift rotary tank, just the lift pivot is configured into rotationally to be inserted the lift rotary tank, in order the bottom of second branch is in the bottom plate the gliding in-process of upper surface makes first branch with second branch is for moving the lift pivot rotates.
3. The elevating support device of claim 2, wherein
The top ends of the two first supporting rods and the top ends of the two second supporting rods are configured to be in slidable abutting joint with the lower surface of the top plate, and four top sliding grooves extending in the front-back direction are formed in the lower surface of the top plate so as to respectively limit the sliding directions of the top ends of the two first supporting rods and the top ends of the two second supporting rods.
4. The elevating support device of claim 2, further comprising:
the driving part is arranged on the upper surface of the bottom plate and is configured to be controlled to selectively output forward or backward driving force; and
the transmission connecting rod is configured to connect the driving part and the bottom ends of the two second supporting rods; wherein
The transmission connecting rod is configured to transmit the driving force to the bottom ends of the two second supporting rods synchronously and drive the bottom ends of the two second supporting rods to move forwards or backwards synchronously, so that the top plate moves downwards or upwards along with the rotation of the first supporting rod and the second supporting rod.
5. The elevating support device according to claim 4, the driving part comprising:
the driving motor is movably arranged on the upper surface of the bottom plate and is provided with an output shaft which is configured to be controlled to rotate towards two opposite directions alternatively;
a drive gear configured to be coaxially coupled with the output shaft to rotate with the output shaft; and
a driving rack extending in a front-rear direction on the upper surface of the base plate and configured to be engaged with the driving gear so that the driving gear moves in the front-rear direction when rotating; wherein
The transmission connecting rod is configured to be vertically connected to the transmission gear together with the rack, so that the bottom ends of the two second supporting rods synchronously move along the front-back direction under the driving of the transmission gear.
6. The elevating support device of claim 2, further comprising:
the auxiliary support is arranged between the top plate and the bottom plate far away from the bottom ends of the two first supporting rods, and comprises a third supporting rod and a fourth supporting rod which are mutually rotatably connected, and the rotating centers of the third supporting rod and the fourth supporting rod are respectively positioned in the middle positions of the third supporting rod and the fourth supporting rod; wherein
The top ends of the third supporting rod and the fourth supporting rod are movably abutted against the lower surface of the top plate, and the bottom ends of the third supporting rod and the fourth supporting rod are movably connected with the upper surface of the bottom plate; and is
The moving directions of the bottom ends of the third supporting rod and the fourth supporting rod are not parallel to the moving directions of the bottom ends of the two second supporting rods; and
the third supporting rod and the fourth supporting rod are configured to be controlled to rotate relatively so as to change the heights of the top ends of the third supporting rod and the fourth supporting rod and continuously abut against the lower surface of the top plate.
7. The elevating support device of claim 6, further comprising:
the auxiliary motor is fixed on the bottom plate and is configured to be controlled to output two rotation driving forces in opposite directions;
an auxiliary gear configured to be coaxially connected with an output shaft of the auxiliary motor;
an auxiliary rack slidably provided on the upper surface of the bottom plate in a moving direction of a bottom end of the third bar or a moving direction of a bottom end of the fourth bar and configured to be engaged with the auxiliary gear to slide when the auxiliary gear rotates; wherein
The bottom end of the third supporting rod or the bottom end of the fourth supporting rod is configured to be rotatably connected with the auxiliary rack so as to move under the driving of the auxiliary rack.
8. The elevating support device of claim 1, further comprising:
at least one buffer member disposed on the lower surface of the top plate and configured to be compressed to be contracted in a longitudinal direction; and
at least one cushion seat disposed on the upper surface of the base plate opposite to the at least one cushion member, respectively, configured to receive the at least one cushion member, respectively, when the at least one cushion member moves downward to contact the upper surface of the base plate.
9. A refrigerator comprising a cabinet and the elevation supporting apparatus according to any one of claims 1 to 8,
at least one storage room is limited in the box body, and the lifting support device is arranged in the at least one storage room; and is
The lifting support device is configured to be controllably moved into or out of the at least one storage compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316921.7A CN108759281B (en) | 2018-04-10 | 2018-04-10 | Lifting support device and refrigerator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316921.7A CN108759281B (en) | 2018-04-10 | 2018-04-10 | Lifting support device and refrigerator with same |
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| Publication Number | Publication Date |
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| CN108759281A CN108759281A (en) | 2018-11-06 |
| CN108759281B true CN108759281B (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810316921.7A Active CN108759281B (en) | 2018-04-10 | 2018-04-10 | Lifting support device and refrigerator with same |
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| CN (1) | CN108759281B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111336763B (en) * | 2018-12-18 | 2021-06-04 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN111561803B (en) * | 2019-02-13 | 2023-01-10 | 海信冰箱有限公司 | Refrigerator with a door |
| CN109631462B (en) * | 2018-12-18 | 2020-09-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN111336764B (en) * | 2018-12-18 | 2021-06-04 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| WO2020125179A1 (en) * | 2018-12-18 | 2020-06-25 | 海信（山东）冰箱有限公司 | Refrigerator |
| CN109579425A (en) * | 2018-12-25 | 2019-04-05 | 合肥华凌股份有限公司 | Drawer appliance and refrigeration equipment with it |
| KR102663561B1 (en) | 2018-12-28 | 2024-05-08 | 엘지전자 주식회사 | Refrigerator |
| KR102583877B1 (en) * | 2018-12-28 | 2023-10-04 | 엘지전자 주식회사 | Refrigerator |
| KR102579883B1 (en) | 2018-12-28 | 2023-09-18 | 엘지전자 주식회사 | Refrigerator |
| CN111765710B (en) * | 2019-04-02 | 2022-01-25 | 重庆海尔制冷电器有限公司 | Refrigerator with a door |
| CN112197478B (en) * | 2019-07-08 | 2022-04-29 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112197481B (en) * | 2019-07-08 | 2022-07-05 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| KR20210007638A (en) * | 2019-07-12 | 2021-01-20 | 엘지전자 주식회사 | Refrigerator |
| KR20210007639A (en) * | 2019-07-12 | 2021-01-20 | 엘지전자 주식회사 | Refrigerator |
| CN111473598A (en) * | 2020-04-23 | 2020-07-31 | 长虹美菱股份有限公司 | Synchronous lifting device for refrigerator shelves |
| CN113753793A (en) * | 2020-06-01 | 2021-12-07 | 优车库网络科技发展(深圳)有限公司 | Jacking device for new energy automobile maintenance |
| CN111649529B (en) * | 2020-06-05 | 2021-12-17 | 长虹美菱股份有限公司 | Intelligent lifting shelf for refrigerator |
| CN111664649A (en) * | 2020-06-18 | 2020-09-15 | 长虹美菱股份有限公司 | Automatic lifting device for refrigerator shelf |
| KR102690149B1 (en) * | 2022-06-29 | 2024-08-05 | (주)세고스 | Lift-up system |
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| CN108759281A (en) | 2018-11-06 |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
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