CN118031514A - Refrigerator with a refrigerator body - Google Patents

Abstract

The present invention relates to a refrigerator, comprising: a case; the inner side wall of the box liner is provided with an installation cavity; the lifting cross rod is movably arranged in the mounting cavity; the layer rack is connected with the lifting cross rod; the winding drum is rotatably arranged on the upper side of the lifting cross rod; one end of the pull rope is wound on the winding drum, and the other end of the pull rope is connected with the lifting cross rod; the driving piece can drive the winding drum to rotate; when the winding drum rotates, the stay cord can drive the lifting cross rod to slide upwards in the installation cavity and drive the layer frame to move upwards in the refrigeration compartment. The lifting cross rod is utilized to slide up and down in the mounting cavity, so that the layer frame is driven to lift up and down in the refrigerating room, and the lifting range of the layer frame is improved; simultaneously, the driving piece, the winding drum and the pull rope are matched, so that the pull rope can be wound on the winding drum and drive the lifting cross rod and the layer frame to move upwards, and power assistance is provided for lifting of the layer frame, so that the layer frame can be lifted up and down in a refrigerating room easily, food materials on the layer frame are not required to be taken down, and lifting performance of the layer frame is improved.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

The refrigerator is an indispensable electrical product in home life. With the increasing demands of consumers on fresh foods, the demands on refrigerators are also increasing.

In the related refrigerators on the market at present, a manually lifting layer frame adjusting structure is characterized in that a plurality of fixed positions with different heights are reserved on the side wall of a refrigerator container, if the relative height of the layer frame needs to be adjusted, the layer frame and food materials need to be completely taken down, and then the layer frame is installed at other positions, so that the problems of inconvenient adjustment and time and labor waste exist. There is also a layer frame structure that partially goes up and down manually, need not remove the food material, but can only adjust in certain coverage, and the lift effect is not good.

Disclosure of Invention

The invention aims to provide a refrigerator so as to optimize a layer frame structure of the refrigerator in the related technology and improve the lifting performance of the layer frame.

In order to solve the technical problems, the invention adopts the following technical scheme:

According to one aspect of the present invention, there is provided a refrigerator including: a case forming a housing outside the refrigerator; the box liner is arranged in the box body, and a refrigeration compartment is formed in the box liner; the left and right inner side walls of the box liner are respectively provided with an installation cavity; the lifting cross rods are arranged in two and are respectively and movably arranged in the two mounting cavities, and the lifting cross rods can slide up and down in the mounting cavities; the layer rack is arranged in the refrigerating compartment, and two ends of the layer rack are respectively connected with one lifting cross rod; the winding drum is rotatably arranged on the upper side of the lifting cross rod; one end of the pull rope is wound on the winding drum, and the other end of the pull rope is connected with the lifting cross rod; a driving member coupled to the spool, the driving member configured to drive the spool to rotate; when the driving piece drives the winding drum to rotate, the pull rope can drive the lifting cross rod to slide upwards in the mounting cavity and drive the layer rack to move upwards in the refrigerating chamber.

In some embodiments of the application, the center of the winding drum is provided with an axial extending shaft hole; the driving piece comprises a driving rod, and the driving rod penetrates through the shaft hole and can drive the winding drum to coaxially rotate.

In some embodiments of the present application, the driving rod is disposed on an upper side of the lifting cross rod; the upper side of the other lifting cross rod is provided with a driven rod which is relatively parallel to the driving rod; at least one winding drum is sleeved on the driving rod and the driven rod; the refrigerator further comprises a belt, one end of the belt is sleeved on the driving rod, and the other end of the belt is sleeved on the driven rod; when the driving rod rotates, the driving rod can drive the driven rod to synchronously rotate through the belt, and the winding drum on the driven rod is driven to synchronously rotate.

In some embodiments of the application, the refrigerator further comprises a first roller rotatably disposed on an upper side of one of the lifting rails; the driving rod movably penetrates through the first roller, and can axially move and circumferentially rotate relative to the first roller; the end part of the belt connected with the driving rod is sleeved on the first roller; one end of the first roller is convexly provided with a first clutch tooth; the outer peripheral wall of the driving rod is convexly provided with a second clutch tooth, and the second clutch tooth is positioned at one side of the first clutch tooth; when the driving rod moves along the axial direction relative to the first roller and is clamped with the second clutch teeth, the driving rod can drive the first roller to synchronously rotate and drive the belt to rotate so as to drive the driven rod to synchronously rotate; when the driving rod moves reversely relative to the first roller along the shaft and separates the second clutch teeth from the first clutch teeth, the driving rod can be separated from the first roller and can rotate freely relative to the first roller.

In some embodiments of the application, the refrigerator further includes a second drum rotatably disposed at an upper side of the other lifting rail; the driven rod penetrates through the second roller; the end part of the belt connected with the driven rod is sleeved on the second roller; when the driving rod drives the belt to rotate, the belt can drive the second roller to synchronously rotate and drive the driven rod to synchronously rotate.

In some embodiments of the present application, a guide rod extending vertically is disposed in the installation cavity; the lifting cross rod is sleeved on the guide rod in a sliding manner and can slide up and down along the guide rod; a vertically extending clamping strip is further arranged in the mounting groove; the lifting cross rod is also provided with a locking piece and a locking spring; the locking piece is slidably arranged on the lifting cross rod and is arranged on one side of the clamping strip; the locking spring is connected with the locking piece and can drive the locking piece to slide to be close to the clamping strip, so that the locking piece is clamped with the clamping teeth of the clamping strip.

In some embodiments of the present application, an unlocking member is further provided on the lifting cross bar, and the unlocking member is rotatably connected to the lifting cross bar; the end part of the layer rack is provided with a connecting plate extending downwards; the unlocking piece is respectively connected with the locking piece and the connecting groove, the layer rack can drive the unlocking piece to rotate through the connecting plate, and the locking piece is driven to slide in the direction away from the clamping strip, so that the locking piece is separated from the clamping teeth of the clamping strip.

In some embodiments of the application, the unlocking member comprises a rotating rod and a connecting rod; one end of the rotating rod is connected with one end of the connecting rod and is rotatably connected to the lifting cross rod; the other end of the rotating rod extends into the connecting groove and is connected with the connecting plate; the other end of the connecting rod is connected with the locking piece; when the connecting plate drives the rotating rod to rotate, the rotating rod can drive the connecting rod to synchronously rotate and drive the locking piece to slide in a direction away from the clamping strip.

In some embodiments of the present application, the refrigerator further includes a switch member rotatably disposed on the lifting cross bar and located at one side of the connection plate; when the switch piece rotates to a first position, the switch piece is propped against the connecting plate to prevent the connecting plate from driving the rotating rod to rotate; when the switch piece rotates to a second position, the switch piece is separated from the connecting plate, so that the connecting plate can drive the rotating rod to rotate and drive the locking piece to be separated from the clamping strip.

In some embodiments of the present application, a protruding portion is protruding on a side of the lifting cross bar facing the layer frame, a supporting plate extending downward is provided at an end of the layer frame, and a supporting hole is provided on the supporting plate; the protruding portion protrudes into the supporting hole so that the supporting plate can be supported on the protruding portion; the supporting holes are long-strip-shaped holes, and the supporting holes extend obliquely to the upper part of the front side of the tank liner.

As can be seen from the technical scheme, the embodiment of the invention has at least the following advantages and positive effects:

In the refrigerator provided by the embodiment of the invention, the mounting cavities are arranged on the left and right inner side walls of the refrigerator liner, the lifting cross rod is movably arranged in the mounting cavities, and the end part of the matched layer frame is connected with the lifting cross rod, so that the layer frame can be driven to lift up and down in the refrigerating room by controlling the lifting cross rod to slide up and down in the mounting cavities, and the lifting range of the layer frame is promoted; meanwhile, the driving piece, the winding drum and the pull rope are matched to serve as a power-assisted lifting mechanism, the winding drum is controlled to rotate through the driving piece, the pull rope can be wound on the winding drum and drives the lifting cross rod and the layer frame to move upwards, power assistance is provided for lifting of the layer frame, the layer frame can be lifted up and down in a refrigerating room easily, food materials on the layer frame are not required to be taken down, and lifting performance of the layer frame is improved.

Drawings

Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a schematic view of a portion of the structure in the refrigerator of fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic view of a part of the structure of fig. 3.

Fig. 5 is a schematic view of the structure of the layer stand of fig. 4.

Fig. 6 is a schematic view of the structure of fig. 5 at another view angle.

Fig. 7 is an enlarged schematic view of the area B in fig. 6.

Fig. 8 is an exploded view of fig. 7.

Fig. 9 is a schematic view of the lifting rail and linkage of fig. 4.

Fig. 10 is a schematic view of a lifting rail of fig. 9.

Fig. 11 is a schematic view of another lifting rail of fig. 9.

Fig. 12 is an exploded view of fig. 11.

Fig. 13 is a schematic view of the locking mechanism of fig. 11.

Fig. 14 is an enlarged schematic view of the area a in fig. 4.

Fig. 15 is a schematic view of the structure of fig. 14 in another state.

Fig. 16 is a schematic view of the structure of fig. 4 at another view angle.

Fig. 17 is an enlarged schematic view of fig. 16 at region C.

Fig. 18 is a schematic view of the structure of fig. 17 in another state.

Fig. 19 is a schematic view of the structure of fig. 4 with the shelves removed.

Fig. 20 is an enlarged schematic view of the region D in fig. 19.

Fig. 21 is an enlarged schematic view of the area E in fig. 19.

Fig. 22 is an enlarged schematic view of region F in fig. 19.

Fig. 23 is an enlarged schematic view of the region G in fig. 19.

Fig. 24 is an enlarged schematic view of region H in fig. 19.

The reference numerals are explained as follows: 1. a case; 10. a refrigeration compartment; 2. a tank liner; 21. an assembly groove; 3. a layer rack; 31. a laminate; 32. a decoration piece; 321. fixing the column; 33. a support plate; 331. a support hole; 332. a top plate; 333. a fixed sleeve; 34. a connecting plate; 341. a connecting groove; 4. a mounting box; 41. a mounting hole; 42. a chute; 43. a shielding plate; 44. a guide rod; 45. a rack; 46. clamping strips; 471. a first bracket; 472. a second bracket; 473. a third bracket; 5. lifting the cross bar; 51. a boss; 52. perforating; 53. a guide part; 531. a guide hole; 54. a limit part; 541. a via hole; 55. a first limit post; 56. the second limit column; 6. a locking mechanism; 61. a locking member; 611. tooth slots; 612. a guide post; 613. a linkage hole; 62. a locking spring; 63. an unlocking member; 631. a rotating rod; 632. a connecting rod; 633. locking a screw; 634. a connecting shaft; 64. a switch member; 7. a lifting power assisting mechanism; 71. a reel; 711. a third clutch tooth; 72. a pull rope; 73. a driving rod; 731. a second clutch tooth; 732. a fourth clutch tooth; 74. a rocking handle; 75. a driven rod; 76. a belt; 77. a first roller; 771. a first clutch tooth; 78. a second drum; 8. a connecting rod; 81. a gear.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the invention.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the related refrigerators on the market at present, a manually lifting layer frame adjusting structure is characterized in that a plurality of fixed positions with different heights are reserved on the side wall of a refrigerator container, if the relative height of the layer frame needs to be adjusted, the layer frame and food materials need to be completely taken down, and then the layer frame is installed at other positions, so that the problems of inconvenient adjustment and time and labor waste exist. The multi-layer rack structure capable of being lifted partially manually is not required to remove food materials, but can be adjusted within a certain coverage range, so that the effect is poor.

Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention. Fig. 2 is a schematic view of a portion of the structure in the refrigerator of fig. 1. Fig. 3 is an exploded view of fig. 2. Fig. 4 is a schematic view of a part of the structure of fig. 3.

Referring to fig. 1 to 4, the refrigerator provided by the embodiment of the invention mainly includes a refrigerator body 1, a refrigerator liner 2, a layer frame 3, an installation box 4, a lifting cross bar 5, a locking mechanism 6 and a lifting power assisting mechanism 7.

Wherein, the box 1 adopts the shell structure of cuboid, and box 1 is used for forming the outside casing of refrigerator.

A plurality of mutually separated refrigerating compartments 10 can be arranged in the box body 1, and each separated refrigerating compartment 10 can be used as an independent storage space, such as a freezing chamber, a refrigerating chamber, a temperature changing chamber and the like, so as to meet different refrigerating demands of freezing, refrigerating, changing temperature and the like according to different food types and store the food. The plurality of refrigeration compartments 10 may be arranged in a vertically spaced apart relationship, or in a laterally spaced apart relationship.

The front side of the cabinet 1 is provided with a door (not shown) for opening and closing the refrigerating compartment 10. The door body and the box body 1 can be connected through a hinge, so that the door body of the refrigerator can rotate around the axis of the hinge, the door body of the refrigerator can be opened and closed, and the corresponding refrigeration compartment 10 is opened and closed. It will be appreciated that a plurality of door bodies may be provided and are arranged in one-to-one correspondence with the refrigerating compartments 10. The plurality of door bodies can simultaneously open and close one refrigerating compartment 10, or one door body can simultaneously open and close the plurality of refrigerating compartments 10.

Referring to fig. 1, a container 2 is disposed in a case 1, and a refrigerating chamber 10 is formed inside the container 2. The tank 2 may be provided in plural. It should be noted that only one refrigerating compartment 10 may be provided in the same container 2, or a plurality of refrigerating compartments 10 may be provided, and the plurality of refrigerating compartments 10 may be partitioned by a partition plate.

The outer wall of the tank container 2 and the inner wall of the tank body 1 are provided with a space, and the space can be used for forming a foaming layer, so that a heat preservation and insulation layer is formed between the tank container 2 and the tank body 1, and the refrigeration compartment 10 realizes heat preservation and insulation performance.

A refrigerating assembly (not shown) for supplying cold to the inside of the refrigerator to maintain a low temperature environment of each refrigerating compartment 10 is provided in the cabinet 1. The refrigeration assembly comprises a compressor, a condenser, an evaporator, a throttling device and the like, and the specific structure and connection relation of the refrigeration assembly can refer to the refrigeration assembly in the related art and are not repeated herein.

Fig. 5 is a schematic view of the structure of the layer stand 3 in fig. 4.

Referring to fig. 1 to 5, the shelf 3 is horizontally disposed in the refrigerating compartment 10, i.e., the shelf 3 is horizontally installed in the liner 2. The shelf 3 is used for layering articles. It will be appreciated that a plurality of shelves 3 may be provided and arranged in a vertically spaced relationship.

The layer frame 3 is movably arranged in the refrigerating compartment 10, and the layer frame 3 can move up and down along the refrigerating compartment 10, so that the height of the layer frame 3 in the refrigerating compartment 10 is adjusted, articles can be stored conveniently, and the utilization efficiency of the internal space of the refrigerating compartment 10 is improved.

Fig. 6 is a schematic view of the structure of fig. 5 at another view angle. Fig. 7 is an enlarged schematic view of the area B in fig. 6. Fig. 8 is an exploded view of fig. 7.

Referring to fig. 5-8, in some embodiments, the shelf 3 includes a laminate 31 and a decorative piece 32 provided at an end of the laminate 31. The laminate 31 has a flat plate structure, and the laminate 31 may be a glass plate or a plastic plate. The ornamental pieces 32 are provided in two, and the two ornamental pieces 32 are fixed to both ends of the laminate 31, respectively. The decorative piece 32 may be made of plastic, such as by injection molding. Both ends of the layer frame 3 can be fixed on the inner wall of the tank liner 2 through decorating pieces 32 respectively.

Referring to fig. 5 to 8, in some embodiments, a bottom of the decoration 32 is provided with a support plate 33 extending downward, and the support plate 33 is detachably fixed to the bottom of the decoration 32. The decoration 32 is fixed in the liner 2 by the support plate 33, so that the layer frame 3 can be fixed in the liner 2.

It should be noted that, in other embodiments, the supporting plate 33 may be integrally formed at the bottom of the decoration 32. In other embodiments, the decoration 32 and the laminate 31 may be integrally formed, and the support plate 33 is integrally formed at the lower side of the end of the shelf 3.

In some embodiments, the support plate 33 is provided with a support hole 331, and the support plate 33 can be connected with the inner wall of the tank liner 2 through the support hole 331, so that the layer frame 3 can be supported inside the tank liner 2, that is, inside the refrigeration compartment 10.

In some embodiments, the support holes 331 are bar-shaped holes and have a bar-shaped waist hole structure. The support holes 331 are arranged to extend obliquely, and the support holes 331 extend obliquely upward of the front side of the tank 2. The support plate 33 can move along the extending direction of the support hole 331 relative to the inner wall of the liner 2, so that the shelf 3 can move obliquely in the refrigerating compartment 10 along the extending direction of the support hole 331, and the height position and the front-back position of the shelf 3 in the refrigerating compartment 10 can be finely adjusted.

Referring to fig. 5-8, in some embodiments, a transversely extending top plate 332 is provided on top of the support plate 33, and the top of the support plate 33 is detachably secured to the bottom of the trim piece 32 by the top plate 332.

In some embodiments, two fixing posts 321 are arranged at intervals on the bottom of the decoration 32, a top plate 332 is provided with a fixing sleeve 333 opposite to the fixing posts 321, and the fixing sleeve 333 is sleeved on the fixing posts 321, so that the top plate 332 and the supporting plate 33 are detachably fixed on the bottom of the decoration 32.

Referring to fig. 1 to 4, a mounting box 4 is embedded on the inner wall of the liner 2, and a mounting cavity is provided in the mounting box 4, and is used for providing a mounting space and a lifting space for the lifting cross rod 5. The two mounting boxes 4 are arranged on the left and right inner side walls of the liner 2 in a left-right opposite manner. I.e. the two mounting cavities are arranged on the left and right inner side walls of the tank liner 2 in a left and right opposite way.

In some embodiments, the mounting cavity is provided on a side wall of the mounting box 4 facing the liner 2, i.e. a mounting cavity is defined between an inner side wall of the liner 2 and a side wall of the mounting box 4. Specifically, the left and right inner side walls of the liner 2 are respectively concavely provided with an assembly groove 21, and two mounting boxes 4 are respectively embedded in the two assembly grooves 21, namely, the mounting boxes 4 can be covered at the notch of the assembly groove 21, and then a mounting cavity is formed by enclosing between the groove wall of the assembly groove 21 and the side wall of the mounting box 4. In addition, the outer side wall of the installation box 4 is flush with the inner side wall of the box liner 2, so that the flatness of the inner wall of the box door is maintained.

In some embodiments, the color of the outer side wall of the mounting box 4 is consistent with the color of the inner wall of the liner 2, that is, the mounting box 4 and the inner wall of the liner 2 adopt the same color, so as to reduce the color difference between the mounting box 4 and the inner wall of the liner 2, and ensure the consistency of the inner wall structure of the liner 2.

In some embodiments, the outer side wall of the mounting box 4 is provided with a plurality of mounting holes 41, and screw caps (not shown in the figure) are arranged at the mounting holes 41, and the screw caps penetrate through the mounting holes 41, so that the mounting box 4 is fixed on the inner side wall of the liner 2. It should be noted that, the color of the screw cap can be the same as the color of the inner wall of the mounting box 4 and the inner wall of the container 2, so as to further ensure the consistency of the inner wall structure of the container 2.

Fig. 9 is a schematic view of the lifting rail 5 and the link 8 of fig. 4. Fig. 10 is a schematic view of a lifting rail 5 of fig. 9. Fig. 11 is a schematic view of another lifting rail 5 of fig. 9.

Referring to fig. 2 to 11, the lifting cross bar 5 is movably disposed in the installation cavity, the lifting cross bar 5 is used for connecting with the end of the shelf 3, and meanwhile, the lifting cross bar 5 can be hidden in the installation box 4, so that the shelf 3 can be stably fixed in the refrigeration compartment 10 in the liner 2 through the lifting cross bar 5. The lifting cross bar 5 can slide up and down in the installation cavity, and the layer frame 3 connected with the lifting cross bar 5 can synchronously move up and down in the refrigeration compartment 10. Thus, by adjusting the height of the lifting cross bar 5 in the installation cavity, the height of the shelf 3 in the refrigerated compartment 10 can be adjusted.

Referring to fig. 2 and 3, in some embodiments, a vertically extending chute 42 is formed on an outer side wall of the mounting box 4 facing the shelf 3, and the chute 42 communicates the mounting cavity with the refrigeration compartment 10. The lifting cross bar 5 can be connected to the end of the layer frame 3 at the chute 42, so that the two ends of the layer frame 3 are connected to a lifting cross bar 5 at the chute 42. Therefore, when the lifting rail 5 slides up and down in the mounting box 4, the shelf 3 can move up and down in synchronization in the cooling room 10.

Referring to fig. 1 to 4, in some embodiments, a shielding plate 43 is provided on the mounting box 4, and the shielding plate 43 is disposed at the chute 42. The two shielding plates 43 are arranged in a group, the two shielding plates 43 are arranged on the upper side and the lower side of the lifting cross rod 5 in an up-down opposite manner, and the two shielding plates 43 are respectively arranged at the sliding grooves 42 on the upper side and the lower side of the lifting cross rod 5 in a sliding manner. When the lifting cross rod 5 slides up and down in the installation box 4, the lifting cross rod 5 can drive the shielding plates 43 on the upper side and the lower side of the lifting cross rod to slide up and down in the sliding groove 42 respectively, and then the shielding plates are shielded on the sliding groove 42 to seal the installation cavity, so that the installation cavity is relatively isolated from the interior of the refrigeration compartment 10, and objects in the shelf 3 and the refrigeration compartment 10 are prevented from entering the installation cavity through the sliding groove 42.

Referring to fig. 2 to 11, in some embodiments, the side wall of the lifting rail 5 facing the refrigeration compartment 10 is provided with a protruding portion 51, i.e. the protruding portion 51 is provided on the side wall of the lifting rail 5 facing the chute 42. The boss 51 protrudes out of the first sliding groove 42 and protrudes into the supporting hole 331 so that the supporting plate 33 can be supported on the boss 51 through the supporting hole 331, thereby enabling the end of the shelf 3 to be connected and supported on the elevation cross bar 5.

In some embodiments, the lifting cross bar 5 is provided with a plurality of protruding parts 51, and the protruding parts 51 are arranged at intervals. Meanwhile, a plurality of support plates 33 are arranged at the bottom of the layer frame 3, the plurality of support plates 33 are arranged at intervals front and back and are in one-to-one correspondence with the protruding portions 51, and the protruding portions 51 are arranged in the support holes 331 extending into the support plates 33 in one-to-one correspondence. It should be noted that the number of the protruding portion 51 and the supporting plate 33 may be two, three or more, and is not limited herein.

Referring to fig. 4, in some embodiments, a guide rod 44 is provided in the mounting box 4, the guide rod 44 is located in the mounting cavity, and the guide rod 44 extends in the vertical direction. The lifting cross bar 5 is slidably sleeved on the guide bar 44, so that the lifting cross bar 5 can move up and down in the installation cavity along the extending direction of the guide bar 44. Meanwhile, when the lifting cross rod 5 slides up and down along the guide rod 44, the protruding portion 51 on the lifting cross rod 5 can drive the shelf 3 to move up and down in the refrigeration compartment 10.

In other embodiments, a plurality of guide rods 44 may be disposed in the mounting box 4, where the plurality of guide rods 44 are disposed in parallel at intervals, and the lifting cross rod 5 is slidably sleeved on the plurality of guide rods 44, so that the lifting cross rod 5 can move up and down along the plurality of guide rods 44 at the same time, and stability of up and down movement of the lifting cross rod 5 is improved.

Referring to fig. 4 to 11, in some embodiments, a connecting rod 8 is disposed between two lifting rails 5, the connecting rod 8 is disposed inside the liner 2, the connecting rod 8 extends in a lateral direction, and the connecting rod 8 is used to connect the two lifting rails 5 so that the two lifting rails 5 can lift synchronously. Specifically, one end of the connecting rod 8 passes through a chute 42 on the mounting box 4 and extends into the mounting box 4 to be connected with a lifting cross rod 5; the other end of the connecting rod 8 passes through a sliding groove 42 on the other mounting box 4 and extends into the other mounting box 4 to be connected with the other lifting cross rod 5. Thus, the two lifting rails 5 can be connected by the link 8, and the two lifting rails 5 can be moved up and down synchronously in the mounting cavities in the two mounting boxes 4, and the ends of the link 8 can be moved up and down in the chute 42 when the lifting rails 5 are moved up and down along the guide bars 44 in the mounting cavities.

In some embodiments, the connecting rod 8 is disposed within the refrigerated compartment 10 and below the shelves 3. Therefore, the connecting rod 8 can be hidden below the shelf 3, so that the aesthetic appearance of the shelf 3 and the refrigerator is ensured.

Referring to fig. 2 to 11, in some embodiments, a rack 45 extending vertically is disposed in the mounting cavity, and a plurality of latches arranged in a vertically continuous manner are densely distributed at one side edge of the rack 45. The mounting cavity is internally provided with a gear 81, the gear 81 is sleeved at the end part of the connecting rod 8 extending into the mounting cavity, and the gear 81 is meshed with the latch teeth of the rack 45. Therefore, when the link 8 moves up and down along the chute 42, that is, when the lifting rail 5 moves up and down along the guide bar 44 in the installation cavity, the gear 81 can move up and down along the rack 45, thereby smoothly moving the lifting rail 5 up and down in the installation cavity.

In some embodiments, the end of the link 8 is rotatably connected to the lifting rail 5, while the gear 81 is fixedly connected to the end of the link 8. Therefore, when the gear 81 moves up and down along the rack 45, the link 8 can rotate relative to the lifting rail 5, and the link 8 and the lifting rail 5 can be moved up and down synchronously.

It should be noted that, in other embodiments, the end of the link 8 may be fixedly connected to the lifting rail 5, and the gear 81 may be rotatably connected to the end of the link 8. Therefore, when the gear 81 moves up and down along the rack 45, the gear 81 can rotate relative to the link 8 and move the link 8 and the lifting rail 5 up and down synchronously.

Fig. 12 is an exploded view of fig. 11. Fig. 13 is a schematic structural view of the lock mechanism 6 in fig. 11. Fig. 14 is an enlarged schematic view of the area a in fig. 4. Fig. 15 is a schematic view of the structure of fig. 14 in another state.

Referring to fig. 11-15, in some embodiments, a vertically extending clip 46 is provided in the mounting cavity, and the locking mechanism 6 is provided on the lifting rail 5 and on one side of the clip 46. A plurality of latches are densely distributed at the edge of one side of the latch 46 and are arranged continuously up and down, and the locking mechanism 6 is used for being matched with the latches at different heights on the latch 46 to lock or unlock the lifting cross rod 5.

Referring to fig. 11 to 15, in some embodiments, the locking mechanism 6 includes a locking member 61, a locking spring 62, and an unlocking member 63. Wherein, the locking piece 61 is slidably arranged on the lifting cross bar 5, and the locking piece 61 can slide close to or slide away from the clamping strip 46. The locking member 61 has a plurality of tooth slots 611 at one end thereof adjacent to the locking bar 46. Specifically, when the locking piece 61 slides to be close to the clamping strip 46, the tooth groove 611 at the end of the locking piece 61 can be clamped with the clamping tooth on the clamping strip 46, so that the locking piece 61 is relatively fixed on the clamping strip 46, and the lifting cross rod 5 is relatively fixed in the mounting box 4, and at this time, the layer rack 3 is fixed in the box liner 2, and further, the height of the layer rack 3 can be fixed. When the locking piece 61 slides away from the clamping strip 46, the tooth groove 611 at the end part of the locking piece 61 can be separated from the clamping tooth on the clamping strip 46, the locking piece 61 is unlocked relative to the clamping strip 46, and then the lifting cross rod 5 can move up and down freely along the guide rod 44 in the installation cavity, the height of the layer frame 3 in the box liner 2 is adjusted, and then the height of the layer frame 3 is adjusted.

Referring to fig. 11 and 12, in some embodiments, the lifting rail 5 is provided with a through hole 52, the through hole 52 vertically penetrates the lifting rail 5, and the clip 46 is disposed in the through hole 52. When the lifting cross bar 5 moves up and down freely along the guide bar 44 in the installation cavity, the clamping bar 46 is always positioned in the through hole 52 and can move up and down relative to the through hole 52.

Referring to fig. 11 and 12, in some embodiments, a guide portion 53 is protruding from a side of the lifting rail 5 facing away from the shelf 3, and a guide hole 531 is formed in the guide portion 53, where the guide hole 531 extends in a lateral direction and penetrates the guide portion 53 in the lateral direction. The locking piece 61 is slidably inserted into the guide hole 531, and the tooth groove 611 on the locking piece 61 is located on one side of the guide portion 53 near the locking strip 46. The locking member 61 can slide laterally along the guide hole 531 to slide closer to or farther from the clip strip 46.

Referring to fig. 11 to 15, in some embodiments, a locking spring 62 is connected to the locking member 61 and disposed between the lifting rail 5 and the locking member 61, and the locking spring 62 is used to drive the locking member 61 to slide close to the locking bar 46. Specifically, when no other external force acts on the locking piece 61, the locking spring 62 can drive the locking piece 61 to automatically slide to approach the clamping strip 46, so that tooth grooves 611 at the end part of the locking piece 61 are clamped with clamping teeth of the clamping strip 46, and locking of the lifting cross rod 5 is achieved.

In some embodiments, the locking spring 62 is a compression spring and is in a compressed state. One end of the lock spring 62 abuts against the lifting cross bar 5, and the other end of the lock spring 62 abuts against the lock piece 61. Therefore, the locking member 61 can automatically slide laterally along the guide hole 531 under the action of the elastic force of the compression spring, and further slide close to the locking bar 46, so that the tooth groove 611 at the end of the locking member 61 is engaged with the tooth of the locking bar 46.

It should be noted that, in other embodiments, the locking spring 62 may also be an extension spring, and the locking member 61 is automatically pulled to slide close to the clip 46 by using the tension of the extension spring.

Referring to fig. 11 to 15, in some embodiments, a limiting portion 54 is protruding from a side of the lifting rail 5 facing away from the shelf 3, one end of a locking spring 62 abuts against the limiting portion 54, and the other end of the locking spring 62 abuts against a locking member 61. The locking spring 62 is located at a side of the limiting portion 54 near the latch 46, so that the locking spring 62 can drive the tooth groove 611 of the locking member 61 to automatically slide near the latch of the latch 46.

In some embodiments, the limiting portion 54 is provided with a through hole 541, the locking member 61 is provided with a guide post 612 extending toward the limiting portion 54, and the locking spring 62 is sleeved on the guide post 612. When the locking piece 61 slides back and forth along the guide hole 531, one end of the guide post 612, which is close to the limiting portion 54, can movably penetrate into the through hole 541 of the limiting portion 54, and the locking spring 62 can be compressed or extended.

In some embodiments, the locking springs 62 may be provided in a plurality, with the plurality of locking springs 62 being spaced apart in parallel. Correspondingly, the limiting parts 54 and the guide posts 612 are provided with a plurality of limiting parts and are arranged in one-to-one correspondence with the locking springs 62.

Referring to fig. 11 to 15, in some embodiments, the unlocking member 63 is rotatably connected to the lifting rail 5, and the rotation axis of the unlocking member 63 is perpendicular to the lifting rail 5 and perpendicular to the outer side wall of the mounting box 4. The end of the unlocking member 63 facing away from the shelf 3 is connected to the locking member 61. When the unlocking member 63 rotates to the side far away from the clamping strip 46, the unlocking member 63 can drive the locking member 61 to slide away from the clamping strip 46, so that the tooth slot 611 of the locking member 61 is separated from the tooth of the clamping strip 46, and the unlocking function of the lifting cross rod 5 and the layer frame 3 is realized. It should be noted that, in the unlocked state of the lifting cross bar 5 and the landing gear 3, the lifting cross bar 5 and the landing gear 3 can freely adjust up or down the height thereof.

Fig. 16 is a schematic view of the structure of fig. 4 at another view angle. Fig. 17 is an enlarged schematic view of fig. 16 at region C. Fig. 18 is a schematic view of the structure of fig. 17 in another state.

Referring to fig. 11 to 18, in some embodiments, an end of the unlocking member 63 near the shelf 3 can pass through the lifting cross bar 5 and be connected to the shelf 3, and the unlocking member 63 is exposed out of the chute 42. When the lifting cross bar 5 slides up and down along the guide bar 44, the unlocking member 63 can move up and down along the chute 42, and the unlocking member 63 is maintained in a connected relationship with the shelf 3.

In some embodiments, the bottom of the trim piece 32 is provided with a downwardly extending web 34, and the web 34 is provided with a connecting slot 341. One end of the unlocking member 63, which is close to the shelf 3, can extend into the connecting groove 341 and then be connected with the connecting plate 34. When the shelf 3 moves back and forth relative to the mounting box 4, the shelf 3 can drive the unlocking piece 63 to rotate through the connecting plate 34 and the groove wall of the connecting groove 341, and drive the locking piece 61 to slide to a side far away from the clamping strip 46 in a rotating mode of the unlocking piece 63, so that the tooth groove 611 of the locking piece 61 is separated from the clamping tooth of the clamping strip 46, and the unlocking function of the lifting cross rod 5 and the shelf 3 is realized.

Specifically, the user can manually control the layer rack 3 to move above the front side of the liner 2 along the extending direction of the supporting hole 331, so that the layer rack 3 moves back and forth relative to the mounting box 4, and then the unlocking piece 63 can be driven to rotate through the connecting plate 34, as shown in fig. 15 and 18, so as to drive the locking piece 61 to be separated from the clamping strip 46, to unlock the lifting cross rod 5 and the layer rack 3, and further control the layer rack 3 and the lifting cross rod 5 to move up and down, and adjust the height of the layer rack 3.

After the height of the layer frame 3 is adjusted, the user releases the layer frame 3, the locking piece 61 resets under the action of the elastic force of the locking spring 62, the locking piece 61 slides to be close to the clamping strip 46, and the tooth slot 611 of the locking piece 61 is clamped with the tooth of the clamping strip 46, so that the height of the lifting cross rod 5 and the layer frame 3 are fixed, as shown in fig. 14, at this time, the locking piece 61 can drive the unlocking piece 63 to reversely rotate, and then the layer frame 3 is driven to reset through the connecting plate 34, so that the protruding portion 51 is supported at the top of the supporting hole 331, as shown in fig. 17.

In some embodiments, the connecting groove 341 is formed by extending upward from the bottom of the connecting plate 34, i.e. the connecting groove 341 is a groove structure with an open lower end. One end of the unlocking piece 63 can be inserted into the connection groove 341 through the lower port of the connection groove 341.

Referring to fig. 11 to 18, in some embodiments, the unlocking member 63 includes a rotating lever 631, a connecting lever 632, and a locking screw 633. The rotating lever 631 and one end of the connecting lever 632 are coaxially connected and both are rotatably connected to the lifting cross bar 5. The connection end of the rotating lever 631 and the connecting lever 632 is the rotation end of the unlocking piece 63. The locking screw 633 is provided at the connection end of the rotating rod 631 and the connecting rod 632, so as to connect the rotating rod 631 and the connecting rod 632, and make the rotating rod 631 and the connecting rod 632 rotatably connected to the lifting cross rod 5.

It should be noted that, in other embodiments, the rotating rod 631, the connecting rod 632 and the locking screw 633 may be integrally formed.

In some embodiments, the rotating lever 631 is located on the side of the lifting rail 5 that is adjacent to the landing 3 and the connecting lever 632 is located on the side of the lifting rail 5 that is opposite the landing 3. The end of the rotating lever 631 remote from the rotating end thereof protrudes into the connecting groove 341 and is connected to the connecting plate 34. The end of the connecting rod 632 remote from its turning end is connected to the locking member 61. Therefore, when the shelf 3 moves in front of the liner 2, the connecting plate 34 can drive the rotating rod 631 to rotate, and make the connecting rod 632 rotate synchronously, so as to drive the locking piece 61 to slide away from the clamping strip 46, and further separate the locking piece 61 from the clamping strip 46, so as to unlock the lifting cross rod 5 and the shelf 3, as shown in fig. 15 and 18. When the shelf 3 is released, the locking piece 61 slides to be close to the clamping strip 46 under the action of the locking spring 62, so that the locking piece 61 is clamped with the clamping strip 46, the lifting cross rod 5 and the shelf 3 are fixed, meanwhile, the connecting rod 632 and the rotating rod 631 are driven to rotate reversely, and the rotating rod 631 drives the shelf 3 to reset through the connecting plate 34, as shown in the states of fig. 14 and 17.

Referring to fig. 13 and 15, in some embodiments, the locking member 61 is provided with a laterally extending linkage hole 613, the linkage hole 613 is at least partially exposed from the guide portion 53, and the exposed portion of the linkage hole 613 is located on a side of the guide portion 53 away from the clip strip 46. Meanwhile, the end of the connection rod 632 far from the rotating end thereof is convexly provided with a connection shaft 634, and the connection shaft 634 is arranged in the linkage hole 613. Therefore, when the connecting rod 632 rotates, it can drive the locking member 61 to slide along the guiding hole 531 to a side away from the locking bar 46 through the connecting shaft 634. When the locking piece 61 slides along the guide hole 531 to the side close to the clip strip 46 under the action of the locking spring 62, the locking piece 61 can drive the connecting rod 632 to reversely rotate and reset through the connecting shaft 634.

Referring to fig. 17 and 18, in some embodiments, the locking mechanism 6 further includes a switch member 64, where the switch member 64 is disposed on a side of the lifting rail 5 facing the landing gear 3, and the switch member 64 is rotatably disposed on the lifting rail 5 and exposed in the chute 42. For manually controlling the forward or reverse rotation of the switch member 64 on the lifting rail 5, and the switch member 64 has a first position and a second position during rotation of the switch member 64 relative to the lifting rail 5.

Referring to fig. 17, when the switch member 64 rotates to the first position, the switch member 64 abuts against the connecting plate 34, and the shelf 3 cannot rotate the rotating rod 631 through the connecting plate 34, so that the locking member 61 and the locking strip 46 can maintain a locked state, as shown in fig. 14.

Referring to fig. 18, when the switch member 64 rotates to the second position, the switch member 64 is separated from the connecting plate 34, that is, there is a sufficient space between the switch member 64 and the connecting plate 34, and the shelf 3 can drive the rotating rod 631 to rotate through the connecting plate 34, so as to drive the locking member 61 to separate from the locking strip 46, so that the locking member 61 and the locking strip 46 are in an unlocked state, and the lifting cross rod 5 and the shelf 3 can be freely adjusted in height, as shown in fig. 15.

Referring to fig. 17 and 18, in some embodiments, a first limiting post 55 and a second limiting post 56 are disposed on a peripheral side of the switch member 64, and the first limiting post 55 and the second limiting post 56 are disposed on a side of the lifting cross bar 5 facing the shelf 3 and are exposed in the chute 42. The first limiting post 55 and the second limiting post 56 are spaced from the rotation axis of the switch member 64, and the first limiting post 55 and the second limiting post 56 are located within the rotation area of the switch member 64. When the switch member 64 rotates and abuts against the first limiting post 55, the switch member 64 abuts against the connecting plate 34, and the locking member 61 and the locking strip 46 can be kept in a locked state, as shown in fig. 14 and 17. When the switch member 64 rotates and abuts against the second limiting post 56, the switch member 64 is just separated from the connecting plate 34, and the locking member 61 and the locking strip 46 are in an unlocked state, as shown in fig. 15 and 18.

Fig. 19 is a schematic view of the structure of fig. 4 with the layer stand 3 removed. Fig. 20 is an enlarged schematic view of the region D in fig. 19. Fig. 21 is an enlarged schematic view of the area E in fig. 19. Fig. 22 is an enlarged schematic view of region F in fig. 19. Fig. 23 is an enlarged schematic view of the region G in fig. 19. Fig. 24 is an enlarged schematic view of region H in fig. 19.

Referring to fig. 19 to 24, a lifting assistance mechanism 7 is disposed on the upper side of the lifting cross bar 5, and the lifting assistance mechanism 7 is used for providing lifting assistance for lifting the lifting cross bar 5 and the landing gear 3 in a state that the lifting cross bar 5 and the landing gear 3 can be freely adjusted in height. Specifically, when the lifting cross bar 5 and the landing gear 3 need to be lifted, the lifting power assisting mechanism 7 provides upward tension to the lifting cross bar 5 and the landing gear 3, and gradually lifts the lifting cross bar 5 and the landing gear 3.

In addition, when the lifting cross bar 5 and the landing gear 3 need to descend, the lifting power assisting mechanism 7 can limit the descending speed of the lifting cross bar 5 and the landing gear 3, so that the lifting cross bar 5 and the landing gear 3 can stably descend.

Referring to fig. 19 and 20, in some embodiments, lift assist mechanism 7 includes a spool 71, a pull cord 72, and a drive member. Wherein the drum 71 is rotatably provided at the upper side of the elevation cross bar 5. The upper end of the pull cord 72 is wound around the spool 71, and the lower end of the pull cord 72 is connected to the lifting rail 5. A driving member is connected to the drum 71, the driving member being capable of driving the drum 71 to rotate.

Specifically, when the driving member controls the rotation of the drum 71 and causes the upper end of the pull cord 72 to be wound around the drum 71 step by step, the lower end of the pull cord 72 can provide an upward pulling force to the lifting cross bar 5 and gradually lift the lifting cross bar 5, provide assistance to the lifting of the lifting cross bar 5 and the racking 3, and realize the gradual lifting of the lifting cross bar 5 and the racking 3.

In some embodiments, the top of the mounting box 4 is provided with a first bracket 471, and the first bracket 471 is disposed in the case 1 and between the case 1 and the liner 2. The winding drum 71 is rotatably disposed on the first supporting frame 471, the winding drum 71 can rotate freely on the first supporting frame 471, and the winding drum 71 is not exposed to the case 1 or the liner 2.

It should be noted that, in other embodiments, the first supporting frame 471 may be disposed in the safety cavity of the mounting box 4 and spaced above the lifting rail 5.

Referring to fig. 19 to 24, in some embodiments, a plurality of reels 71 are provided, the reels 71 are divided into two groups, and the two groups of reels 71 are disposed on the upper sides of the two lifting rails 5. Accordingly, the plurality of pull cords 72 are provided, the plurality of pull cords 72 are divided into two groups, and the two groups of pull cords 72 are respectively provided on the two groups of reels 71 in one-to-one correspondence. One set of reels 71 is connected to one lifting rail 5 by a set of guys 72 and the other set of reels 71 is connected to the other lifting rail 5 by the other set of guys 72. The two sets of reels 71 rotate synchronously, so that the two lifting cross bars 5 can rise synchronously, and the shelf 3 can be lifted up and down in the refrigerating compartment 10 smoothly.

It should be noted that, in the two sets of reels 71, each set of reels 71 may include one or more reels 71. The plurality of reels 71 in each set of reels 71 are coaxially spaced apart. The number of reels 71 in the two sets of reels 71 may be the same or different, and is not limited herein.

In some embodiments, the drive member includes a drive rod 73 and a crank 74. The center of the winding drum 71 is provided with an axial extending shaft hole, the driving rod 73 is movably arranged in the shaft hole in a penetrating mode, and the driving rod 73 can drive the winding drum 71 to coaxially rotate. The driving rod 73 is arranged in the box body 1 and between the box body 1 and the box liner 2, and the driving rod 73 cannot be exposed out of the box body 1 or the box liner 2. The rocking handle 74 is detachably provided at one end of the driving lever 73, and the rocking handle 74 is exposed to the casing 1 for manual control by a user. The rocking handle 74 can drive the actuating lever 73 and rotate around the axis of reel 71, and then drives reel 71 coaxial rotation through actuating lever 73, realizes the winding of stay cord 72, and then provides the helping hand for lifting cross rod 5 and layer frame 3's rising.

Referring to fig. 19 to 24, in some embodiments, the lifting power assisting mechanism 7 further includes a driven lever 75 and a belt 76. Wherein, the driving member is only provided with one group, the driving rod 73 of the driving member is arranged on the upper side of a lifting cross rod 5 and penetrates through the axle center of one group of winding drums 71, i.e. one or more winding drums 71 are sleeved on the driving rod 73. The driven rod 75 is arranged on the upper side of the other lifting cross rod 5 and penetrates through the axle center of the other group of reels 71, namely, one or more reels 71 are sleeved on the driven rod 75. The driven lever 75 is arranged in opposite parallel with the driving lever 73. The belt 76 is provided between the driving lever 73 and the driven lever 75, one end of the belt 76 is fitted over the driving lever 73, and the other end of the belt 76 is fitted over the driven lever 75. When the driving lever 73 rotates, the driving lever 73 can rotate through the belt 76, and further, the driven lever 75 is driven to rotate synchronously. Therefore, when the user drives the driving rod 73 to rotate through the rocking handle 74, the driving rod 73 can drive one lifting cross rod 5 to move up and down through the group of winding drums 71 and the group of pull ropes 72, and drive the driven rod 75 to synchronously rotate through the belt 76, and further drive the other lifting cross rod 5 to synchronously move up and down through the other group of winding drums 71 and the other group of pull ropes 72.

It should be noted that, in other embodiments, two sets of driving members may be provided, and the driving rods 73 of the two sets of driving members are respectively disposed on the upper sides of the two lifting crossbars 5 and respectively penetrate through the axes of the two sets of reels 71. One end of the belt 76 is sleeved on one driving rod 73, and the other end of the belt 76 is sleeved on the other driving rod 73. Therefore, the user can drive any one driving rod 73 through the rocking handle 74, so as to drive the two groups of reels 71 and the pull ropes 72 to move, and further drive the two lifting cross bars 5 to synchronously move up and down.

Referring to fig. 19 to 24, in some embodiments, the lifting assistance mechanism 7 further includes a first roller 77, the first roller 77 is rotatably disposed on an upper side of a lifting cross bar 5, and the driving rod 73 is movably disposed through the first roller 77, that is, the first roller 77 is coaxially spaced from the winding drum 71 on the driving rod 73. The driving rod 73 can drive the first roller 77 to rotate synchronously, and an end portion of the belt 76 connected to the driving rod 73 is sleeved on the first roller 77. Therefore, when the crank 74 controls the driving lever 73 to rotate, the driving lever 73 can drive the first roller 77 to rotate and drive the belt 76 to rotate, thereby driving the driven lever 75 to rotate synchronously.

In some embodiments, a second bracket 472 is provided at the top of the mounting box 4, and the second bracket 472 is provided in the case 1 and between the case 1 and the liner 2. The first roller 77 is rotatably disposed on the second bracket 472, the first roller 77 can rotate freely on the second bracket 472, and the first roller 77 is not exposed to the case 1 or the liner 2.

In other embodiments, the second bracket 472 may be disposed in the safety chamber of the mounting box 4 and spaced above the lifting rail 5.

Referring to fig. 22, in some embodiments, the shaft hole at the center of the first roller 77 is a circular hole, and the driving rod 73 can move axially and rotate circumferentially relative to the first roller 77. Meanwhile, one end of the first roller 77 is convexly provided with a first clutch tooth 771; the outer peripheral wall of the driving lever 73 is provided with second engaging teeth 731 protruding therefrom, and the second engaging teeth 731 are provided at a distance from one side of the first engaging teeth 771.

When the driving rod 73 moves along the axial direction relative to the first roller 77 and makes the second clutch teeth 731 and the first clutch teeth 771 clamped, the driving rod 73 can drive the first roller 77 to rotate synchronously, further drive the belt 76 to rotate synchronously, and drive the driven rod 75 to rotate synchronously through the belt 76, so that the two lifting cross bars 5 can move upwards synchronously.

When the driving lever 73 moves in the reverse direction of the first drum 77 in the axial direction and separates the second clutch teeth 731 from the first clutch teeth 771, the driving lever 73 can be separated from the first drum 77 and freely rotated with respect to the first drum 77. At this time, the driving lever 73 cannot drive the belt 76 and the driven lever 75 to rotate synchronously.

Referring to fig. 19 to 22, in some embodiments, a third clutch tooth 711 is protruding from one end of the drum 71 sleeved on the driving rod 73. The driving lever 73 has a fourth clutch tooth 732 protruding from the outer peripheral wall thereof, and the fourth clutch tooth 732 is provided on one side of the third clutch tooth 711 at a distance.

When the driving rod 73 moves in the axial direction and the second clutch teeth 731 are engaged with the first clutch teeth 771, the fourth clutch teeth 732 are just engaged with the third clutch teeth 711. At this time, the driving rod 73 can drive the winding drum 71 thereon to rotate, and the driven rod 75 is driven to synchronously rotate through the first roller 77 and the belt 76, so that the two lifting cross bars 5 can synchronously move upwards.

When the driving rod 73 moves in the reverse direction in the axial direction and the second clutch teeth 731 are separated from the first clutch teeth 771, the fourth clutch teeth 732 are just separated from the third clutch teeth 711. At this time, the driving lever 73 can be separated from the drum 71 thereon and separated from the first drum 77, so that neither lifting rail 5 can be moved upward. Therefore, the lifting cross bar 5 and the landing gear 3 can be effectively prevented from lifting by the misoperation.

In some embodiments, the first clutch teeth 771, the second clutch teeth 731, the third clutch teeth 711, and the fourth clutch teeth 732 are all one-way clutch teeth, such that the drive rod 73 is in a one-way driving connection with the first roller 77 and the spool 71. Specifically, in a state in which the second clutch teeth 731 are engaged with the first clutch teeth 771 and the fourth clutch teeth 732 are engaged with the third clutch teeth 711, when the driving rod 73 rotates in the forward direction, the driving rod 73 can drive the winding drum 71 and the first drum 77 thereon to rotate synchronously; when the driving lever 73 rotates in the opposite direction, the driving lever 73 cannot drive the drum 71 and the first drum 77 thereon to rotate synchronously. Referring to fig. 20, it should be noted that, in some embodiments, a portion of the spool 71 on the driving rod 73 is sleeved on the driving rod 73, and the driving rod 73 cannot rotate circumferentially relative to the spool 71, but can only move axially relative to the spool 71. At this time, the spool 71 is only used to support the driving lever 73, and the driving lever 73 is stably supported to rotate at the axial center of the spool 71.

Referring to fig. 23, in some embodiments, the lifting power assisting mechanism 7 further includes a second roller 78, the second roller 78 is rotatably disposed on the upper side of the other lifting cross bar 5, and the driven rod 75 is movably disposed through the second roller 78, that is, the second roller 78 is coaxially spaced from the winding drum 71 on the driven rod 75. The second roller 78 can drive the driven lever 75 to rotate synchronously, and the end of the belt 76 connected to the driven lever 75 is sleeved on the second roller 78. Therefore, when the driving lever 73 rotates, the driving lever 73 can drive the second roller 78 to rotate through the belt 76, and further drive the driven lever 75 to synchronously rotate through the second roller 78.

The second roller 78 may be fixedly sleeved on the driven rod 75, or the second roller 78 may be movably sleeved on the driven rod 75, where the driven rod 75 may move axially relative to the second roller 78.

It should be noted that the spool 71 on the driven rod 75 may be fixedly sleeved on the driven rod 75, or the spool 71 on the driven rod 75 may be movably sleeved on the driven rod 75, where the driven rod 75 may be axially moved relative to the spool 71 thereon.

In some embodiments, a third support 473 is provided at the top of the mounting box 4, and the third support 473 is provided in the case 1 and between the case 1 and the liner 2. The second roller 78 is rotatably provided on the third support 473, the second roller 78 is freely rotatable on the third support 473, and the second roller 78 is not exposed to the cabinet 1 or the liner 2.

In other embodiments, the third support 473 may be provided in the safety cavity of the mounting box 4 and spaced above the lifting rail 5.

Based on the technical scheme, the embodiment of the invention has the following advantages and positive effects:

In the refrigerator provided by the embodiment of the invention, the mounting cavities are arranged on the left and right inner side walls of the refrigerator liner 2, the lifting cross rod 5 is movably arranged in the mounting cavities, and the end part of the matched layer frame 3 is connected with the lifting cross rod 5, so that the layer frame 3 can be driven to lift up and down in the refrigeration compartment 10 by controlling the lifting cross rod 5 to slide up and down in the mounting cavities, and the lifting range of the layer frame 3 is lifted; meanwhile, the driving piece, the winding drum 71 and the pull rope 72 are matched to serve as a power-assisted lifting mechanism, the winding drum 71 is controlled to rotate through the driving piece, the pull rope 72 is further wound on the winding drum 71 and drives the lifting cross rod 5 and the layer frame 3 to move upwards, power assistance is provided for lifting the layer frame 3, the layer frame 3 can be lifted up and down in the refrigeration compartment 10 easily, food materials on the layer frame 3 do not need to be taken down, and lifting performance of the layer frame 3 is improved.

While the invention has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A refrigerator, comprising:

a case forming a housing outside the refrigerator;

The box liner is arranged in the box body, and a refrigeration compartment is formed in the box liner; the left and right inner side walls of the box liner are respectively provided with an installation cavity;

The lifting cross rods are arranged in two and are respectively and movably arranged in the two mounting cavities, and the lifting cross rods can slide up and down in the mounting cavities;

the layer rack is arranged in the refrigerating compartment, and two ends of the layer rack are respectively connected with one lifting cross rod;

the winding drum is rotatably arranged on the upper side of the lifting cross rod;

one end of the pull rope is wound on the winding drum, and the other end of the pull rope is connected with the lifting cross rod;

a driving member coupled to the spool, the driving member configured to drive the spool to rotate;

When the driving piece drives the winding drum to rotate, the pull rope can drive the lifting cross rod to slide upwards in the mounting cavity and drive the layer rack to move upwards in the refrigerating chamber.

2. The refrigerator as claimed in claim 1, wherein the drum is provided at a center thereof with an axial-extending shaft hole; the driving piece comprises a driving rod, and the driving rod penetrates through the shaft hole and can drive the winding drum to coaxially rotate.

3. The refrigerator as claimed in claim 2, wherein the driving lever is provided at an upper side of the lifting rail; the upper side of the other lifting cross rod is provided with a driven rod which is relatively parallel to the driving rod; at least one winding drum is sleeved on the driving rod and the driven rod;

The refrigerator further comprises a belt, one end of the belt is sleeved on the driving rod, and the other end of the belt is sleeved on the driven rod;

When the driving rod rotates, the driving rod can drive the driven rod to synchronously rotate through the belt, and the winding drum on the driven rod is driven to synchronously rotate.

4. The refrigerator of claim 3, further comprising a first drum rotatably disposed at an upper side of one of the lifting rails;

The driving rod movably penetrates through the first roller, and can axially move and circumferentially rotate relative to the first roller;

The end part of the belt connected with the driving rod is sleeved on the first roller;

One end of the first roller is convexly provided with a first clutch tooth; the outer peripheral wall of the driving rod is convexly provided with a second clutch tooth, and the second clutch tooth is positioned at one side of the first clutch tooth;

when the driving rod moves along the axial direction relative to the first roller and is clamped with the second clutch teeth, the driving rod can drive the first roller to synchronously rotate and drive the belt to rotate so as to drive the driven rod to synchronously rotate;

When the driving rod moves reversely relative to the first roller along the shaft and separates the second clutch teeth from the first clutch teeth, the driving rod can be separated from the first roller and can rotate freely relative to the first roller.

5. The refrigerator of claim 4, further comprising a second drum rotatably provided at an upper side of the other lifting rail;

the driven rod penetrates through the second roller;

The end part of the belt connected with the driven rod is sleeved on the second roller;

when the driving rod drives the belt to rotate, the belt can drive the second roller to synchronously rotate and drive the driven rod to synchronously rotate.

6. The refrigerator of claim 1, wherein a vertically extending guide bar is provided in the installation cavity; the lifting cross rod is sleeved on the guide rod in a sliding manner and can slide up and down along the guide rod;

A vertically extending clamping strip is further arranged in the mounting groove; the lifting cross rod is also provided with a locking piece and a locking spring; the locking piece is slidably arranged on the lifting cross rod and is arranged on one side of the clamping strip; the locking spring is connected with the locking piece and can drive the locking piece to slide to be close to the clamping strip, so that the locking piece is clamped with the clamping teeth of the clamping strip.

7. The refrigerator of claim 6, wherein the lifting cross bar is further provided with an unlocking piece, and the unlocking piece is rotatably connected to the lifting cross bar;

the end part of the layer rack is provided with a connecting plate extending downwards;

the unlocking piece is respectively connected with the locking piece and the connecting groove, the layer rack can drive the unlocking piece to rotate through the connecting plate, and the locking piece is driven to slide in the direction away from the clamping strip, so that the locking piece is separated from the clamping teeth of the clamping strip.

8. The refrigerator of claim 7, wherein the unlocking member includes a rotating lever and a connecting lever;

one end of the rotating rod is connected with one end of the connecting rod and is rotatably connected to the lifting cross rod;

The other end of the rotating rod extends into the connecting groove and is connected with the connecting plate; the other end of the connecting rod is connected with the locking piece;

When the connecting plate drives the rotating rod to rotate, the rotating rod can drive the connecting rod to synchronously rotate and drive the locking piece to slide in a direction away from the clamping strip.

9. The refrigerator as claimed in claim 8, further comprising a switching member rotatably provided on the lifting rail at one side of the connection plate;

When the switch piece rotates to a first position, the switch piece is propped against the connecting plate to prevent the connecting plate from driving the rotating rod to rotate;

When the switch piece rotates to a second position, the switch piece is separated from the connecting plate, so that the connecting plate can drive the rotating rod to rotate and drive the locking piece to be separated from the clamping strip.

10. The refrigerator of claim 8, wherein a protruding portion is protruded on one side of the lifting cross bar facing the shelf, a supporting plate extending downwards is arranged at the end of the shelf, and a supporting hole is formed in the supporting plate;

The protruding portion protrudes into the supporting hole so that the supporting plate can be supported on the protruding portion;

the supporting holes are long-strip-shaped holes, and the supporting holes extend obliquely to the upper part of the front side of the tank liner.