Lifting components, storage devices and mobile refrigerators

Abstract

The present invention discloses a lifting assembly, a storage device and a mobile refrigerator, the lifting assembly includes a supporting mechanism, a tensioning mechanism and a driving mechanism, the supporting mechanism includes a column and a sliding sleeve, the upper outer wall of the column is connected to the first steering wheel; the tensioning mechanism includes a bracket, the bracket is provided with a slide groove, a slider is installed in the slide groove, at least one of the first movable pulley and the second movable pulley is connected to the slider, and the slider is connected to an elastic member; the driving mechanism includes a motor, a winding wheel, a first cable and a second cable. The motor is used to drive the winding wheel to rotate, the winding wheel is axially spaced apart with a first winding groove and a second winding groove, the winding wheel is arranged at the lower end of the column, one end of the first cable is wound around the first winding groove and fixed to the winding wheel, the other end passes around the first steering wheel and the first movable pulley in sequence, and is fixed to the column, one end of the second cable is wound around the second winding groove and fixed to the winding wheel, and the other end passes around the second movable pulley and is fixed to the column.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile refrigerators, and in particular to a lifting assembly, a storage device and a mobile refrigerator. Background Art

[0002] To adapt to the development of the Internet of Things (IoT), it is necessary to develop a mobile refrigerator with mobile delivery capabilities. This mobile refrigerator includes a liftable storage device, a refrigeration device, and a mobile device. The liftable storage device includes a tray mechanism and a lifting assembly. The tray mechanism is used to place items, and the lifting assembly can drive the items up and down. The refrigeration device is used to refrigerate items stored on the tray mechanism, and the mobile device is used to drive the main body of the smart mobile refrigerator to facilitate user access to items. Related technologies have proposed a lifting assembly that uses a cable and pulley. However, after repeated winding and release, the cable is prone to loosening or getting stuck, affecting the normal operation of the lifting assembly. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a lifting assembly that uses a tensioning mechanism to keep the cable in a tensioned state, effectively preventing the cable from loosening or getting stuck.

[0004] The present invention also provides a storage device having the lifting assembly.

[0005] The present invention also provides a mobile refrigerator with the storage device.

[0006] The lifting assembly provided by an embodiment of the present invention includes a supporting mechanism, a tensioning mechanism and a driving mechanism, the supporting mechanism includes a column and a sliding sleeve, the sliding sleeve is arranged on the column and can slide up and down, and the upper outer wall of the column is connected to the first steering wheel; the tensioning mechanism includes a bracket, a first movable pulley and a second movable pulley, the bracket is fixed to the lower end of the sliding sleeve, the bracket is provided with a sliding groove, a slider is installed in the sliding groove, at least one of the first movable pulley and the second movable pulley is connected to the slider, and the slider is connected to an elastic member to make the first movable pulley and the second movable pulley face each other Movement; the driving mechanism includes a motor, a winding wheel, a first cable and a second cable, the motor is used to drive the winding wheel to rotate, the winding wheel is provided with a first winding groove and a second winding groove at intervals along the axial direction, the winding wheel is provided at the lower end of the column, one end of the first cable is wound around the first winding groove and fixed to the winding wheel, the other end is wound around the first steering wheel and the first movable pulley in sequence, and is fixed to the column, one end of the second cable is wound around the second winding groove and fixed to the winding wheel, the other end is wound around the second movable pulley and fixed to the column.

[0007] The lifting assembly provided in accordance with an embodiment of the present invention has at least the following beneficial effects: the winding wheel is driven to rotate by a motor, and the first movable pulley is driven to rise by the first cable to drive the sliding sleeve to rise, and the second pulley is driven to fall by the second cable to drive the sliding sleeve to fall. The structure of the lifting assembly is simple, and the sliding sleeve is driven to rise and fall by different cables, which is beneficial to improving the reliability of the lifting assembly; the slider of the tensioning mechanism provides a movable space, and the elastic member is used to provide a pre-tightening force, so that the first cable and the second cable are kept tensioned to prevent loosening or jamming during the rising or falling process, thereby improving the operational reliability of the lifting assembly.

[0008] According to an embodiment of the first aspect of the present invention, the bracket is provided with a slide groove, two sliders are installed in the slide groove, the first movable pulley is fixed to one of the sliders, and the second movable pulley is fixed to the other slider.

[0009] According to an embodiment of the first aspect of the present invention, the bracket is provided with two slide grooves, each of which is provided with a slider, the first movable pulley is fixed to one of the sliders, and the second movable pulley is fixed to the other slider.

[0010] According to an embodiment of the first aspect of the present invention, the elastic member is a tension spring or an elastic cable, and both ends of the elastic member are respectively connected to one of the sliders.

[0011] According to an embodiment of the first aspect of the present invention, the elastic member is a compression spring or a torsion spring, and each of the sliders is connected to one of the elastic members.

[0012] According to an embodiment of the first aspect of the present invention, a slide groove is provided at one end of the bracket, a slider is installed in the slide groove, the first movable pulley is fixed to the slider, the second movable pulley is fixed to the bracket, and the second movable pulley is located at one end of the bracket away from the slide groove.

[0013] According to an embodiment of the first aspect of the present invention, the elastic member is a tension spring or an elastic cable, one end of the elastic member is connected to the slider, and the other end is connected to the second movable pulley.

[0014] According to an embodiment of the first aspect of the present invention, the elastic member is a compression spring or a torsion spring, the bracket is provided with a pillar, the pillar is located on the side of the slider away from the second movable pulley, one end of the elastic member is connected to the slider, and the other end is connected to the pillar.

[0015] According to an embodiment of the first aspect of the present invention, the bracket is connected to a cover plate, the cover plate is located on a side of the bracket away from the column and covers the slide groove.

[0016] According to an embodiment of the first aspect of the present invention, a baffle is provided on the side wall of the slide groove, and the baffle is located on a side close to the column, and the cover plate cooperates with the baffle to clamp the slider.

[0017] According to the second embodiment of the present invention, the storage device includes a tray mechanism and the lifting assembly described in the first embodiment, the tray mechanism includes a first tray and a second tray, the first tray is connected to the lower end of the sliding sleeve, and the second tray is connected to the middle of the sliding sleeve.

[0018] A mobile refrigerator according to an embodiment of the third aspect of the present invention includes the storage device described in the embodiment of the second aspect.

[0019] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments with reference to the accompanying drawings, in which:

[0021] Figure 1 An overall schematic diagram of a lifting assembly provided by an embodiment of the present invention;

[0022] Figure 2 A cross-sectional view of a lifting assembly provided in accordance with an embodiment of the present invention;

[0023] Figure 3 A schematic structural diagram of a lifting assembly provided by an embodiment of the present invention when the sliding sleeve is raised;

[0024] Figure 4 A schematic structural diagram of a column and a drive assembly of a lifting assembly provided in an embodiment of the present invention;

[0025] Figure 5 A partially enlarged schematic diagram of the lower end of the lifting assembly provided in an embodiment of the present invention;

[0026] Figure 6 A partially enlarged schematic diagram of the upper end of a lifting assembly provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of the tensioning mechanism provided in an embodiment of the present invention Figure 1 ;

[0028] Figure 8 A schematic structural diagram of a tensioning mechanism provided by an embodiment of the present invention without a cover plate;

[0029] Figure 9 A schematic diagram of the structure of the tensioning mechanism provided in an embodiment of the present invention Figure 2 ;

[0030] Figure 10 A schematic diagram of a structure in which a tensioning mechanism adopts a tension spring in some embodiments of the present invention;

[0031] Figure 11 for Figure 10 A schematic structural diagram of a tensioning mechanism in which a tension spring is stretched;

[0032] Figure 12 This is a schematic structural diagram of a tensioning mechanism using an elastic cable in some embodiments of the present invention;

[0033] Figure 13 This is a schematic structural diagram of a tensioning mechanism using a compression spring in some embodiments of the present invention;

[0034] Figure 14 A schematic diagram of a structure in which a tensioning mechanism adopts a torsion spring in some embodiments of the present invention;

[0035] Figure 15 Schematic diagram of the structure of tensioning mechanisms using tension springs in other embodiments of the present invention;

[0036] Figure 16 Schematic diagram of the structure of tensioning mechanisms using compression springs in other embodiments of the present invention;

[0037] Figure 17 Schematic diagram of the structure of tensioning mechanisms using tension springs in some further embodiments of the present invention;

[0038] Figure 18 A schematic diagram of a structure in which a compression spring is used in a tensioning mechanism in some embodiments of the present invention;

[0039] Figure 19 A schematic structural diagram of a first locking member and a limiting member of a lifting assembly provided in an embodiment of the present invention;

[0040] Figure 20 A schematic structural diagram of a first locking member of a lifting assembly provided in an embodiment of the present invention;

[0041] Figure 21 A cross-sectional view of a pressing member and a rotating shaft of a lifting assembly provided in an embodiment of the present invention;

[0042] Figure 22 A schematic structural diagram of a pressing member of a lifting assembly provided in an embodiment of the present invention;

[0043] Figure 23 An overall schematic diagram of a mobile refrigerator provided by an embodiment of the present invention;

[0044] Figure 24 A cross-sectional view of a mobile refrigerator provided in accordance with an embodiment of the present invention.

[0045] The accompanying figures are as follows:

[0046] Lifting assembly 100; column 110; sleeve 120; bracket 121; slide 1211; slider 1212; elastic member 1213; cover 1214; stop bar 1215; first movable pulley 122; second movable pulley 123; first steering wheel 130; motor 140; rotating shaft 150; pressing surface 151; winding wheel 160; first winding groove 161; second winding groove 162; first cable 170; second cable 180; second steering wheel 190; fixed Plate 200; first locking member 210; first locking cap 211; first rope portion 212; first locking rib 213; first anti-rotation plane 214; second locking member 220; pressing member 230; fixing portion 231; pressing groove 232; side plate 233; pressing screw 240; pressing cap 241; bushing 250; limit member 260; storage device 300; first tray 310; second tray 320; refrigeration device 400; mobile device 500; housing 600. DETAILED DESCRIPTION

[0047] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0049] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0050] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0051] The specific structure and function of the lifting assembly of the embodiment of the first aspect of the present invention will be further explained below with reference to the drawings and text.

[0052] Reference Figures 1 to 6According to an embodiment of the present invention, a lifting assembly 100 is proposed, including a supporting mechanism and a driving mechanism, the supporting mechanism including a fixed seat, a column 110 and a sliding sleeve 120, the column 110 is fixed on the fixed seat in a vertical direction, the sliding sleeve 120 is tubular and matches the shape of the column 110, the sliding sleeve 120 is sleeved on the outer periphery of the column 110 and can slide up and down, the upper end outer wall of the column 110 is connected to the first steering wheel 130, and the lower end of the sliding sleeve 120 is connected to the first movable pulley 122 and the second movable pulley 123; the driving mechanism includes a motor 140, a winding wheel 160, a first cable 170 and a second cable 180, the winding wheel 160 is connected to the rotating shaft 150, the motor 140 is connected to the winding wheel 160 through the rotating shaft 150, and is used to drive the winding wheel 160 to rotate. The outer wall of 160 is concave to form a first winding groove 161 and a second winding groove 162. The first winding groove 161 and the second winding groove 162 are arranged at intervals along the axial direction of the winding wheel 160, and the second winding groove 162 is located on the side of the winding wheel 160 away from the column 110. The winding wheel 160 is fixed to the lower end of the column 110. One end of the first cable 170 is wound around the first winding groove 161 and fixed to the winding wheel 160, and the other end first goes upward, then turns downward by passing the first steering wheel 130, and then turns upward by passing the first movable pulley 122, and is fixed to the upper part of the column 110; one end of the second cable 180 is wound around the second winding groove 162 and fixed to the winding wheel 160, and the other end first goes upward, then turns downward by passing the second movable pulley 123, and is fixed to the lower part of the column 110. During operation, the motor 140 rotates to drive the winding wheel 160 to rotate toward the first direction, the second cable 180 wound on the second winding groove 162 is released, and the first cable 170 is reeled into the first winding groove 161, and the first movable pulley 122 is driven to rise by reeling in the first cable 170, thereby driving the sliding sleeve 120 to rise; when the motor 140 rotates to drive the winding wheel 160 to rotate toward the second direction, the first cable 170 wound on the first winding groove 161 is released, and the second cable 180 is reeled into the second winding groove 162 to drive the second movable pulley 123 to descend, thereby driving the sliding sleeve 120 to descend.

[0053] Since the first cable 170 is wound around the first movable pulley 122, the first cable 170 provides an upward pulling force from both sides of the first movable pulley 122, which is beneficial to reducing the pulling force borne by the first cable 170 on one side, so that the first movable pulley 122 is subjected to balanced force, and the sliding sleeve 120 rises smoothly with high reliability. Similarly, when the second cable 180 drives the sliding sleeve 120 to descend, the second cable 180 provides a downward pulling force from both sides of the second sliding wheel 123, which is beneficial to reducing the pulling force borne by the second cable 180 on one side, so that the second sliding wheel 123 is subjected to balanced force, and the sliding sleeve 120 moves smoothly during the descent.

[0054] It should be noted that there can be two winding wheels 160, one of which is provided with a first winding groove 161, and the other winding wheel 160 is provided with a second winding groove 162; the first cable 170 is wound on the first movable pulley 122, and the first cable 170 provides an upward pulling force from both sides of the first movable pulley 122, which can reduce the pulling force acting on the first cable 170. Similarly, the second cable 180 is wound on the second movable pulley 123, and the second cable 180 provides a downward pulling force from both sides of the second sliding wheel 123, which can reduce the pulling force acting on the second cable 180.

[0055] Reference Figure 4 and Figure 5 It can be understood that the first movable pulley 122 and the second movable pulley 123 are respectively connected to the first cable 170 and the second cable 180. In order to prevent the first cable 170 or the second cable 180 from loosening or even getting entangled during the rising or falling process of the sliding sleeve 120, a tensioning mechanism is provided.

[0056] Reference Figures 7 to 9 The tensioning mechanism includes a bracket 121, a slide groove 1211 is provided on the bracket 121, a slidable slider 1212 is arranged in the slide groove 1211, and one slider 1212 can be used, and the first movable pulley 122 or the second movable pulley 123 is fixed to the slider 1212, or two sliders 1212 can be used, and the first movable pulley 122 and the second movable pulley 123 are respectively fixed to one slider 1212, and the slider 1212 is used to provide a sliding space, and the slider 1212 is connected to an elastic member 1213, under the action of the elastic member 1213 Under the present invention, the first movable pulley 122 and the second movable pulley 123 have a tendency to move toward each other, and the pulling force of the first cable 170 on the first movable pulley 122 and the pulling force of the second cable 180 on the second movable pulley 123 are opposite. The elastic member 1213 is used to apply a pre-tightening force, the first movable pulley 122 applies a tensioning force to the first cable 170, and the second movable pulley 123 applies a tensioning force to the second cable 180, so that the first cable 170 and the second cable 180 remain in a tensioned state, preventing the problem of loosening and entanglement, and improving the operation stability of the lifting assembly.

[0057] Reference Figure 10 and Figure 11A slide groove 1211 is provided on the bracket 121, and two slidable sliders 1212 are arranged in the slide groove 1211. The first movable pulley 122 is fixed to the slider 1212 located above, and the second movable pulley 123 is fixed to the slider 1212 located below. The elastic member 1213 is a tension spring, and the two ends of the tension spring are respectively connected to the two sliders 1212. The tension spring is used to apply reverse pre-tightening force. The first movable pulley 122 applies tensioning force to the first cable 170, and the second movable pulley 123 applies tensioning force to the second cable 180, so that the first cable 170 and the second cable 180 are kept in a tensioned state to prevent loosening and entanglement. Figure 11 As shown, when the first cable 170 pulls the first movable pulley 122 or the second cable 180 pulls the second movable pulley 123, the tension spring is stretched, which can help to tighten the first cable 170 or the second cable 180 to prevent loosening or entanglement.

[0058] In addition, refer to Figure 12 , the elastic member 1213 can also be an elastic cable, the two ends of the elastic cable are respectively connected to the two sliders 1212, and a tension spring is used to apply a reverse preload; or, refer to Figure 13 , the elastic member 1213 can also be a compression spring, each slider 1212 is connected to a compression spring, the two compression springs are distributed on the outside of the two sliders 1212, and push the two sliders 1212 to move toward each other, using the compression spring to apply reverse preload; or, refer to Figure 14 The elastic member 1213 may also be a torsion spring. Each slider 1212 is connected to a torsion spring. The two torsion springs are distributed on the outside of the two sliders 1212 and push the two sliders 1212 to move toward each other, and the torsion springs are used to apply reverse preload force.

[0059] Reference Figure 15 Two slide grooves 1211 are provided on the bracket 121, and a slidable slider 1212 is arranged in each slide groove 1211. The sliding directions of the two sliders 1212 are consistent. The first movable pulley 122 is fixed to the slider 1212 located above, and the second movable pulley 123 is fixed to the slider 1212 located below. The elastic member 1213 is a tension spring. The two ends of the tension spring are respectively connected to the two sliders 1212. The tension spring is used to apply a reverse preload force. The first movable pulley 122 applies a tensioning force to the first cable 170, and the second movable pulley 123 applies a tensioning force to the second cable 180, so that the first cable 170 and the second cable 180 remain in a tensioned state to prevent loosening and entanglement.

[0060] In addition, the elastic member 1213 can also be an elastic cable, and the connection method of the elastic cable is similar to that of the tension spring; or, similar to that of the elastic cable. Figure 16The elastic member 1213 may also be a compression spring, each slider 1212 is connected to a compression spring, and the two compression springs are distributed on the outside of the two sliders 1212, and push the two sliders 1212 to move toward each other, and use the compression spring to apply reverse preload force; alternatively, the elastic member 1213 may also be a torsion spring, and the connection method of the torsion spring refers to the compression spring.

[0061] Reference Figure 17 A slide groove 1211 is provided on the bracket 121, and a slidable slider 1212 is arranged in the slide groove 1211. The first movable pulley 122 is fixed to the slider 1212, and the second movable pulley 123 is fixed to the bracket 121. The elastic member 1213 is a tension spring, one end of the tension spring is connected to the slider 1212, and the other end is connected to the second movable pulley 123 or the bracket 121. The tension spring is used to apply a reverse preload force, and the first movable pulley 122 applies a tensioning force to the first cable 170, and the second movable pulley 123 applies a tensioning force to the second cable 180, so that the first cable 170 and the second cable 180 remain in a tensioned state to prevent loosening and entanglement.

[0062] In addition, the elastic member 1213 can also be an elastic cable, and the connection method of the elastic cable is similar to that of the tension spring; or, similar to that of the tension spring. Figure 18 The elastic member 1213 may also be a compression spring, the slider 1212 is connected to a compression spring, one end of the compression spring is connected to the slider 1212, and the other end of the compression spring is connected to the end of the bracket 121 away from the second movable pulley 123. The compression spring pushes the slider 1212 to move toward the second movable pulley 123, and the compression spring is used to apply a reverse preload force; alternatively, the elastic member 1213 may also be a torsion spring, and the connection method of the torsion spring refers to the compression spring.

[0063] Reference Figures 9 to 11 The slide groove 1211 on the bracket 121 passes through the bracket 121, and a cover plate 1214 is installed on the outer wall of the bracket 121. The cover plate 1214 covers the slide groove 1211. In order to facilitate the sliding of the slider 1212, grease is usually applied on the slider 1212. The cover plate 1214 plays a protective role to protect the grease. The cover plate 1214 is fixed to the bracket 121 by screws. The slider 1212 can be checked or grease can be added by removing the cover plate 1214, which is easy to operate. In order to limit the slider 1212, a baffle 1215 can be set in the slide groove 1211. The baffle 1215 is located on the side of the slide groove 1211 close to the column 110. The baffle 1215 and the cover plate 1214 cooperate to clamp the slider 1212 to prevent the slider 1212 from falling out. The structure is simple and reliable.

[0064] Reference Figures 2 to 5It can be understood that, since the first winding groove 161 is spaced apart from the first winding groove 161, the second winding groove 162 is located at the end of the winding wheel 160 away from the column 110, and two second steering wheels 190 are connected to the outer wall of the column 110, the two second steering wheels 190 are spaced apart from each other from top to bottom and are located above the winding wheel 160, the axial direction of the second steering wheel 190 is perpendicular to the axial direction of the winding wheel 160, the second winding groove 162 is located on one side of the second steering wheel 190, and the second movable pulley 1 23 is located on the other side of the second steering wheel 190, the second cable 180 is released from the second winding groove 162, and passes around the two second steering wheels 190 and the second movable pulley 123 in sequence. The two second steering wheels 190 deflect the second cable 180 so that the second cable 180 released from the second winding groove 162 is aligned with the groove on the outer wall of the second movable pulley 123, which can effectively prevent the second cable 180 from falling off due to excessive relative position deviation between the second winding groove 162 and the second sliding wheel 123.

[0065] It should be noted that the sizes of the two second movable pulleys 123 can be the same or different, and can be changed accordingly according to specific needs during use.

[0066] In addition, a fishing rod-like conductive coil structure may be used to guide the second cable 180 , which can meet the requirements of changing the orientation.

[0067] Reference Figure 2 、 Figure 4 and Figure 5 It can be understood that the column 110 is connected to the fixing plate 200, and the fixing plate 200 includes a connecting portion and a mounting portion. The mounting portion is perpendicular to the connecting portion. The upper and lower ends of the connecting portion are fixed to the column 110 by fasteners. The outer wall of the connecting portion fits the outer wall of the column 110, which is conducive to improving the reliability of fixation and saving space. The two second steering wheels 190 are installed at the upper and lower ends of the mounting portion of the fixing plate 200, and the fixation of the two second steering wheels 190 is stable and reliable.

[0068] Reference Figures 1 to 24 It can be understood that the first cable 170 is fixed to the upper part of the column 110 through the first locking member 210. The first locking member 210 includes a first locking cap 211. When fixing the first cable 170, the end of the first cable 170 is placed between the first locking cap 211 and the column 110, and the first locking member 210 is fixed to the column 110 using a fastener. The first locking cap 211 cooperates with the wall surface of the column 110 to lock the end of the first cable 170. The first cable 170 is not easy to fall off, thereby improving the reliability of the operation of the lifting assembly 100 and enhancing the user experience.

[0069] Reference Figures 6 to 20It can be understood that the first locking member 210 also includes a first rope winding portion 212, and the first locking cap 211 is located at the end of the first rope winding portion 212 away from the column 110. In the process of fixing the first cable 170, the end of the first cable 170 is first wound around the first rope winding portion 212, and then the first locking member 210 is fixed to the column 110 using a fastener, so that the first locking cap 211 fits and presses the first cable 170 wound around the first rope winding portion 212, which is conducive to improving the reliability of the fixation of the first cable 170.

[0070] Reference Figure 20 It can be understood that in order to further improve the reliability of the fixation of the first cable 170, a first locking rib 213 can be provided on the wall of the first locking cap 211 toward the first rope winding portion 212, and the first locking rib 213 extends radially along the first locking cap 211. In the process of fixing the first cable 170, the end of the first cable 170 is first wound around the first rope winding portion 212, and then the first locking member 210 is fixed to the column 110 using a fastener. The first locking cap 211 presses the first cable 170 wound around the first rope winding portion 212, and the first locking rib 213 presses the first cable 170 from the radial direction of the first locking cap 211.

[0071] Reference Figure 20 It can be understood that a plurality of first locking ribs 213 can be provided on the first locking cap 211, and the plurality of first locking ribs 213 are arranged on the first locking cap 211 at circumferential intervals. The plurality of first locking ribs 213 press the first cable 170 from a plurality of different directions, and the first cable 170 is not easy to fall off.

[0072] Reference Figure 19 and Figure 20 It can be understood that each first locking rib 213 is recessed at one end close to the first rope winding portion 212 to form a first annular wire receiving groove, and the end of the first locking rib 213 away from the first rope winding portion 212 can be regarded as a claw hook. When the first cable 170 is wound around the first rope winding portion 212, at least part of the first cable 170 is received in the first wire receiving groove, and the claw hook at the end of the first locking rib 213 away from the first rope winding portion 212 gathers the first cable 170 to prevent the first cable 170 wound around the first rope winding portion 212 from spreading out.

[0073] It can be understood that each second locking rib is recessed at one end close to the second rope winding portion to form a second annular wire receiving groove, and the end of the second locking rib away from the second rope winding portion can be regarded as a claw hook. When the second cable 180 is wound around the second rope winding portion, at least part of the second cable 180 is received in the second wire receiving groove, and the claw hook at the end of the second locking rib away from the second rope winding portion gathers the second cable 180 to prevent the second cable 180 wound around the second rope winding portion from spreading out.

[0074] Reference Figure 19 and Figure 20 It can be understood that a first entrance and exit channel is defined between two adjacent first locking ribs 213. Along the circumference of the first locking cap 211, the width of the first entrance and exit channel is greater than the diameter of the first cable 170. In the process of fixing the first cable 170, after the end of the first cable 170 is wound around the first rope winding portion 212, the first cable 170 extends from the first entrance and exit channel, preventing the first cable 170 from extending from the first locking rib 213 and raising the first locking cap 211 to cause the clamping effect to deteriorate, which is beneficial to improving the reliability of fixation.

[0075] Reference Figure 20 It can be understood that the first rope winding portion 212 is columnar, and the outer wall of the first rope winding portion 212 is provided with a first anti-rotation plane 214. The upper part of the column 110 is provided with a first mounting hole that matches the shape of the first rope winding portion 212. The first rope winding portion 212 is installed in the first mounting hole. In the process of fixing the first cable 170, after the end of the first cable 170 is wound around the first rope winding portion 212, the first rope winding portion 212 is inserted into the first mounting hole and then fixed with a fastener. At this time, the first anti-rotation plane 214 is stuck on the inner wall of the first mounting hole. Even if the first cable 170 generates a pulling force along the circumferential direction of the first locking member 210, the first locking member 210 will not rotate.

[0076] Reference Figure 1 、 Figure 3 and Figure 5 It can be understood that the second cable 180 is fixed to the lower part of the column 110 through the second locking piece 220. The second locking piece 220 includes a second locking cap. When fixing the second cable 180, the end of the second cable 180 is placed between the second locking cap and the column 110, and the second locking piece 220 is fixed to the column 110 using a fastener. The second locking cap cooperates with the wall surface of the column 110 to lock the end of the second cable 180. The second cable 180 is not easy to fall off, thereby improving the reliability of the operation of the lifting assembly 100 and enhancing the user experience.

[0077] Reference Figure 1 、 Figure 3 and Figure 5 It can be understood that the second locking member 220 also includes a second rope winding portion, and the second locking cap is located at one end of the second rope winding portion. In the process of fixing the second cable 180, the end of the second cable 180 is first wound around the second rope winding portion, and then the second locking member 220 is fixed to the column 110 using a fastener, so that the second clamping cap 241 fits and presses the second cable 180 wound around the second rope winding portion, which is beneficial to improve the reliability of the fixation of the second cable 180.

[0078] Reference Figure 1 、 Figure 3 and Figure 5 It can be understood that in order to further improve the reliability of the fixation of the second cable 180, a second locking rib can be formed on the wall of the second locking cap protruding toward the second rope winding portion, and the second locking rib locks the second cable 180. In the process of fixing the second cable 180, the end of the second cable 180 is first wound around the second rope winding portion, and then the second locking member 220 is fixed to the column 110 using a fastener. The second locking cap fits the second cable 180 wound around the second rope winding portion, and the second locking rib presses the second cable 180 from the radial direction of the second locking cap.

[0079] Reference Figure 1 、 Figure 3 and Figure 5 It can be understood that a plurality of second locking ribs can be provided on the second locking cap, and the plurality of second locking ribs are arranged at circumferential intervals on the second clamping cap 241. The plurality of second locking ribs compress the second cable 180 from a plurality of different directions, and the second cable 180 is not easy to fall off.

[0080] Reference Figure 1 、 Figure 3 and Figure 5 It can be understood that a second entry and exit channel is defined between two adjacent second locking ribs. Along the circumference of the second locking cap, the width of the second entry and exit channel is greater than the diameter of the second cable 180. In the process of fixing the second cable 180, after the end of the second cable 180 is wound around the second rope winding part, the second cable 180 extends from the second entry and exit channel, preventing the second cable 180 from extending from the second locking rib and raising the second locking rib to cause the clamping effect to deteriorate, which is beneficial to improving the reliability of fixation.

[0081] Reference Figure 1 、 Figure 3 and Figure 5 It can be understood that the second rope winding part is columnar, and the outer wall of the second rope winding part is provided with a second anti-rotation plane. The upper part of the column 110 is provided with a second mounting hole matching the shape of the second rope winding part, and the second rope winding part is installed in the second mounting hole. In the process of fixing the second cable 180, after the end of the second cable 180 is wound around the second rope winding part, the second rope winding part is inserted into the second mounting hole, and then fixed with a fastener. At this time, the second anti-rotation plane is stuck on the inner wall of the second mounting hole. Even if the second cable 180 generates a pulling force along the circumferential direction of the second locking member 220, the second locking member 220 will not rotate.

[0082] It should be noted that the structures of the first locking member 210 and the second locking member 220 may be the same or different, and the specific structures of the first locking member 210 and the second locking member 220 may be changed accordingly according to actual needs.

[0083] Reference Figure 2 、 Figure 4 and Figure 19 It can be understood that the column 110 is connected to two limit members 260, one of which is located above the second locking member 220, and the other is located below the first locking member 210. The inner wall of the sliding sleeve 120 is provided with a protruding block, which is located between the two limit members 260 to limit the movement range of the sliding sleeve 120 and prevent the sliding sleeve 120 from separating from the column 110.

[0084] It should be noted that the limiting member 260 includes a mounting plate and a limiting plate, and there is a gap between the limiting plate and the mounting plate. The limiting plate 260 can clamp the block on the sleeve 120 to limit the sleeve 120. The first cable 170 and the second cable 180 are both passed through the gap. A boss is provided on the side wall of the mounting plate facing the limiting plate. The boss is used to support the first cable 170 and the second cable 180 so that the first cable 170 is aligned with the middle of the first movable pulley 122, and the first cable 170 is aligned with the middle of the first movable pulley 122.

[0085] Reference Figures 2 to 5 It is understandable that the first locking member 210 and the second locking member 220 can be fixed on the winding wheel 160 by a pressing member 230.

[0086] Reference Figure 5 、 Figure 21 and Figure 22 The first and second cables 170 and 180 are fixed to each other by a clamping screw 232.

[0087] Reference Figure 21 and Figure 22It can be understood that the clamping member 230 also includes side plates 233, and side plates 233 are connected on both sides of the fixing portion 231. The connection between the side plates 233 and the fixing portion 231 is concave to form a clamping groove 232 surrounding the clamping member 230. When the first cable 170 and the second cable 180 are respectively arranged in a clamping groove 232, the side plates 233 on both sides of the fixing portion 231 can block the first cable 170 and the second cable 180 to prevent the first cable 170 and the second cable 180 from sliding out from the side of the clamping member 230, and the clamping groove 232 is arranged around the clamping member 230, which can better accommodate the first cable 170 and the second cable 180 wound around the clamping groove 232, which is conducive to saving space.

[0088] Reference Figure 21 and Figure 22 It can be understood that the side plate 233 of the clamping member 230 extends toward the rotating shaft 150 and surrounds part of the rotating shaft 150, and the side wall of the side plate 233 facing the rotating shaft 150 is provided with an arc-shaped surface. When the clamping member 230 is fixed to the rotating shaft 150 by the clamping screw 240, the gap between the arc-shaped surface of the side plate 233 and the outer wall surface of the rotating shaft 150 is smaller than the width of the first cable 170 and the second cable 180. The arc-shaped surface of the side plate 233 cooperates with the outer wall surface of the rotating shaft 150 to confine the first cable 170 and the second cable 180 in the clamping groove 232, preventing the first cable 170 or the second cable 180 from slipping out of the gap between the arc-shaped surface of the side plate 233 and the outer wall surface of the rotating shaft 150.

[0089] It should be noted that the curved surfaces on the two side panels 233 also have a positioning and installation function. When fixing the first cable 170 and the second cable 180, the ends of the first cable 170 and the second cable 180 are first wound around a clamping groove 232 respectively, and then the clamping member 230 is placed on the rotating shaft 150, and the positioning is achieved by using the curved surfaces on the side panels 233 and the outer wall of the rotating shaft 150, and then the fixing part 231 is fixed using the clamping screw 240.

[0090] Reference Figure 21 and Figure 22 It can be understood that a horizontally arranged clamping plane 151 is provided on the wall surface of the rotating shaft 150 facing the clamping member 230. When fixing the first cable 170 and the second cable 180, the ends of the first cable 170 and the second cable 180 are first wound around a clamping groove 232 respectively, and then the clamping member 230 is placed on the rotating shaft 150, so that the first cable 170 and the second cable 180 wound around the clamping groove 232 abut against the clamping plane 151 of the rotating shaft 150, and then the fixing part 231 is fixed by the clamping screw 240. The clamping member 230 cooperates with the clamping plane 151 to clamp the first cable 170 and the second cable 180, which is beneficial to improve the reliability of the clamping of the first cable 170 and the second cable 180.

[0091] Reference Figure 21 It can be understood that the clamping screw 240 includes a stud and a clamping cap 241. The clamping cap 241 is arranged at the end of the stud. The clamping screw 240 passes through the middle of the fixing portion 231 of the clamping piece 230. The width of the clamping cap 241 extends to the clamping groove 232. When the fixing portion 231 is fixed by the clamping screw 240, the clamping cap 241 of the clamping screw 240 can clamp the first cable 170 and the second cable 180 from the upper side of the clamping piece 230, which is beneficial to improve the reliability of the clamping.

[0092] It should be noted that the reel 160 , the pressing member 230 , the first cable 170 and the second cable 180 can be defined as a cable fixing mechanism, which can be applied not only to the lifting assembly 100 provided in the embodiment of the present invention, but also to other similar mechanisms.

[0093] Reference Figures 1 to 6 It is understood that the side wall of the reel 160 is provided with a first threading hole connected to the first winding groove 161. The first threading hole can be located near the bottom wall of the first winding groove 161, and the first cable 170 can directly pass through the first threading hole to reach the first winding groove 161 without having to go around the side wall of the reel 160. During installation, one end of the first cable 170 is fixed to the rotating shaft 150 via the pressing member 230, and the other end of the first cable 170 passes through the first threading hole to reach the first winding groove 161. It is then wound sequentially around the first winding groove 161, the first deflection wheel 130, and the first movable pulley 122, and finally locked to the upper portion of the column 110 via the first locking member 210.

[0094] Reference Figures 1 to 6 It can be understood that the side wall of the winding wheel 160 is provided with a second threading hole connected to the second winding groove 162. The position of the second threading hole can be close to the bottom of the second winding groove 162. The second cable 180 passes through the second threading hole to reach the second winding groove 162 without having to bypass the side wall of the winding wheel 160. During installation, one end of the second cable 180 is fixed to the rotating shaft 150 through the clamping member 230, and the other end of the second cable 180 passes through the second threading hole to reach the second winding groove 162, and then is wound around the second winding groove 162 and the second movable pulley 123, and finally is locked to the lower part of the column 110 by the second locking member 220.

[0095] Reference Figures 1 to 6It can be understood that a winding wheel 160 and a first steering wheel 130 can be provided on opposite sides of the column 110, and a first movable pulley 122 and a second movable pulley 123 are also connected to opposite sides of the inner wall of the sliding sleeve 120. Each winding wheel 160 is wound with a first cable 170 and a second cable 180. Each first cable 170 is wound around a first steering wheel 130 and a first movable pulley 122, and each second cable 180 is wound around a second movable pulley 123. A through hole is provided at the lower end of the column 110. The motor 140 is connected to a rotating shaft 150, which passes through a through hole at the lower end of the column 110 to simultaneously connect the two winding wheels 160 for rotation. When the lifting assembly 100 is running, the motor 140 drives the rotating shaft 150 to rotate, and the rotating shaft 150 simultaneously drives the two winding wheels 160 to rotate. The two winding wheels 160 drive the first cable 170 and the second cable 180 respectively, and at the same time provide an upward or downward pulling force on both sides of the sleeve 120, thereby improving the reliability of the operation of the lifting assembly 100, and the sleeve 120 is subjected to balanced force, and moves smoothly during the process of rising or falling.

[0096] Reference Figure 2 It can be understood that the column 110 is provided with a mounting hole, and a sleeve 250 is provided in the mounting hole. The rotating shaft 150 is passed through the sleeve 250 and can rotate. The sleeve 250 can prevent the rotating shaft 150 from directly contacting the column 110, thereby avoiding wear of the column 110 caused by the rotation of the rotating shaft 150, and the sleeve 250 extends axially along the rotating shaft 150 to surround part of the rotating shaft 150, which can increase the contact area with the rotating shaft 150 and improve the service life.

[0097] Reference Figure 23 and Figure 24 An embodiment of the present invention further proposes a mobile refrigerator, including a shell 600, a liftable storage device 300, a refrigeration device 400 and a moving device 500. The liftable storage device 300 includes a tray mechanism and a lifting assembly 100. The tray mechanism is used to place items, and the lifting assembly 100 can drive the items to be lifted and lowered. The refrigeration device 400 is used to refrigerate the items stored on the tray mechanism. The moving device 500 is used to drive the intelligent mobile refrigerator body to move to facilitate users to access items.

[0098] Among them, the lifting component 100 of the liftable storage device 300 has all the beneficial effects of the lifting component 100 proposed in the embodiment of the present invention. The tray mechanism also includes a first tray 310 and a second tray 320. The first tray 310 is fixed to the lower end of the sliding sleeve 120, and the second tray 320 is fixed to the middle of the sliding sleeve 120. The first tray 310 and the second tray 320 can store items at the same time, and the heights of the first tray 310 and the second tray 320 are different to adapt to the heights of different food or beverage packages, which is conducive to improving user experience.

[0099] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. The present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Lifting assembly, characterized in that, include: The support mechanism includes a column and a sliding sleeve, wherein the sliding sleeve is sleeved on the column and can slide up and down, and the upper outer wall of the column is connected to a first steering wheel; The tensioning mechanism includes a bracket, a first movable pulley, and a second movable pulley, wherein the bracket is fixed to the lower end of the sliding sleeve, the bracket is provided with a slide groove, a slider is installed in the slide groove, at least one of the first movable pulley and the second movable pulley is connected to the slider, and the slider is connected to an elastic member to enable the first movable pulley and the second movable pulley to move toward each other; The driving mechanism includes a motor, a winding wheel, a first cable and a second cable, the motor is used to drive the winding wheel to rotate, the winding wheel is provided with a first winding groove and a second winding groove spaced apart along the axial direction, the winding wheel is arranged at the lower end of the column, one end of the first cable is wound around the first winding groove and fixed to the winding wheel, and the other end is wound around the first steering wheel and the first movable pulley in sequence and fixed to the column, one end of the second cable is wound around the second winding groove and fixed to the winding wheel, and the other end is wound around the second movable pulley and fixed to the column.

2. The lifting assembly according to claim 1, characterized in that: The bracket is provided with a slide groove, and two sliders are installed in the slide groove. The first movable pulley is fixed to one of the sliders, and the second movable pulley is fixed to the other slider.

3. The lifting assembly according to claim 1, wherein: The bracket is provided with two sliding grooves, each of which is provided with a slider, the first movable pulley is fixed to one of the sliders, and the second movable pulley is fixed to the other slider.

4. The lifting assembly according to claim 2 or 3, characterized in that: The elastic member is a tension spring or an elastic cable, and both ends of the elastic member are respectively connected to one of the sliders.

5. The lifting assembly according to claim 2 or 3, characterized in that: The elastic member is a compression spring or a torsion spring, and each of the sliders is connected to one of the elastic members.

6. The lifting assembly according to claim 1, wherein: A slide groove is provided at one end of the bracket, a slider is installed in the slide groove, the first movable pulley is fixed to the slider, the second movable pulley is fixed to the bracket, and the second movable pulley is located at one end of the bracket away from the slide groove.

7. The lifting assembly according to claim 6, characterized in that: The elastic member is a tension spring or an elastic cable, one end of the elastic member is connected to the slider, and the other end is connected to the second movable pulley.

8. The lifting assembly according to claim 6, wherein: The elastic member is a compression spring or a torsion spring. The bracket is provided with a pillar. The pillar is located on a side of the slider away from the second movable pulley. One end of the elastic member is connected to the slider, and the other end is connected to the pillar.

9. The lifting assembly according to claim 1, wherein: The bracket is connected with a cover plate, which is located on a side of the bracket away from the column and covers the slide groove.

10. The lifting assembly according to claim 9, characterized in that: The side wall of the sliding groove is provided with a blocking bar, and the blocking bar is located on a side close to the column. The cover plate cooperates with the blocking bar to clamp the sliding block.

11. A storage device, characterized in that: It comprises a tray mechanism and a lifting assembly as claimed in any one of claims 1 to 10, wherein the tray mechanism comprises a first tray and a second tray, the first tray is connected to the lower end of the sliding sleeve, and the second tray is connected to the middle of the sliding sleeve.

12. Mobile refrigerator, characterized in that: Comprising the storage device according to claim 11.

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