CN116428794A

CN116428794A - Refrigerator with a refrigerator body

Info

Publication number: CN116428794A
Application number: CN202210005110.1A
Authority: CN
Inventors: 张修洋
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2023-07-14

Abstract

The present invention relates to a refrigerator, comprising: the device comprises a box body, a guide rail, a lifting plate, a layer frame, a traction rope, a rotating rod and an elastic piece. The box body is internally provided with a box liner. The guide rail is vertically arranged on the inner wall of the tank liner, and a vertically extending chute is concavely arranged in the guide rail. The lifting plate is connected with the chute in a sliding way. The layer is erected in the tank liner and connected to the lifting plate. The lower end of the traction rope is connected with the lifting plate. The rotating rod is rotationally connected to the lifting plate and arranged in the sliding groove. The elastic piece is arranged on the rotating rod. The lower extreme of haulage rope links to each other with the other end of bull stick, and the haulage rope can force the bull stick to overcome the drive power of elastic component and reverse rotation to make bull stick and the inside wall phase separation of spout, and then the haulage rope can drive the lifter plate and reciprocate along the spout. After the pulling force of the pulling rope to the lifting plate disappears, the elastic piece can drive the rotating rod to rotate, and one end of the rotating rod is abutted against the inner side wall of the sliding groove, so that the rotating rod, the lifting plate and the layer frame can be relatively fixed on the sliding groove.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the field of household appliances, in particular to a refrigerator.

Background

Refrigerators are a kind of household appliances commonly used by people. With the increasing quality of life, there is a trend in demand for large-volume refrigerators. In order to meet the requirements of placing articles with different sizes and improve the space utilization rate in the refrigerator, a plurality of shelves for placing food are arranged in the refrigerator.

In the related art, one end of a traction rope is connected with an output shaft of a motor, and the other end of the traction rope is connected with a layer frame, so that when the height of the layer frame needs to be adjusted, the motor rotates and the traction rope is wound on or released from the output shaft of the motor, and the traction rope is lengthened or shortened to drive the layer frame to ascend or descend. The layer frame is balanced under the action of self gravity and the pulling force of the pulling rope, and then the layer frame can be fixed on a certain height. However, when the traction rope breaks, the shelf will fall, resulting in damage to the items placed on the shelf.

Disclosure of Invention

The invention aims to provide a refrigerator so as to optimize the structure of the existing refrigerator and solve the problem that a layer rack falls down due to breakage of a traction rope.

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: the box body is internally provided with a box liner; the guide rail is vertically arranged on the inner wall of the box liner, and a vertically extending chute is concavely arranged in the guide rail; the lifting plate is connected to the chute in a sliding way; the layer frame is arranged in the box liner and connected to the lifting plate; the lower end of the traction rope is connected with the lifting plate, and the traction rope is used for providing pulling force and pulling the lifting plate to move up and down along the sliding groove; the rotating rod is rotationally connected to the lifting plate and is arranged in the chute; the elastic piece is connected with the rotating rod and can drive the rotating rod to rotate so that one end of the rotating rod is abutted against the inner side wall of the sliding groove; the lower end of the traction rope is connected with the other end of the rotating rod, and the pulling force of the traction rope on the lifting plate can force the rotating rod to overcome the driving force of the elastic piece to reversely rotate, so that the rotating rod is separated from the inner side wall of the sliding groove; after the pulling force of the pulling rope on the lifting plate disappears, the elastic piece can drive the rotating rod to rotate, and one end of the rotating rod is abutted with the inner side wall of the sliding groove.

According to some embodiments of the present application, the refrigerator further comprises a connecting block; a connecting plate is convexly arranged on one side of the lifting plate, which faces the sliding groove; the connecting plate is provided with a through hole which penetrates up and down; the connecting block is arranged below the connecting plate, and the lower end of the traction rope movably penetrates through the through hole and is connected with the connecting block; the connecting block is arranged above the rotating rod and is connected with one end of the rotating rod, which is far away from the inner side wall of the sliding groove; the pulling force provided by the pulling rope drives the connecting block to be supported on the bottom surface of the connecting plate, and the rotating rod is forced to reversely rotate by the connecting block against the driving force of the elastic piece.

According to some embodiments of the present application, the refrigerator further comprises a connecting rod disposed between the connecting block and the rotating rod; the upper end of the connecting rod is hinged to the connecting block; the lower end of the connecting rod is hinged to one end of the rotating rod, which is far away from the inner side wall of the sliding groove; when the connecting block is supported on the bottom surface of the connecting plate, the upper end of the connecting rod rotates around the connecting block, and the lower end of the connecting rod forces the rotating rod to reversely rotate against the driving force of the elastic piece.

In some embodiments of the present application, the connection block includes a first portion and a second portion; the first part is arranged below the connecting plate; the second part is convexly arranged on the top surface of the first part and movably penetrates through the through hole; the lower end of the traction rope is connected with the second part, and the first part is supported on the bottom surface of the connecting plate under the driving of the traction rope by providing tension force; the first portion is connected with one end of the rotating rod, which is far away from the inner side wall of the sliding groove.

In some embodiments of the present application, two rotating rods are provided, namely a first rotating rod and a second rotating rod; the first rotating rod and the second rotating rod are respectively arranged at two sides of the connecting block; one end of the first rotating rod, which is close to the second rotating rod, is hinged to the connecting block; one end of the second rotating rod, which is close to the first rotating rod, is hinged to the connecting block; the elastic pieces are two, namely a first elastic piece and a second elastic piece; the first elastic piece is arranged on the first rotating rod and can drive the first rotating rod to rotate, so that one end, far away from the second rotating rod, of the first rotating rod is abutted against the inner side wall of the sliding groove; the second elastic piece is arranged on the second rotating rod, and the second elastic piece can drive the second rotating rod to reversely rotate, so that one end, far away from the first rotating rod, of the second rotating rod is abutted against the other inner side wall of the sliding groove.

According to some embodiments of the present application, the rotating rod is provided with a mounting hole; a rotating shaft is convexly arranged on one side of the lifting plate, which faces the sliding groove, and the rotating shaft is distributed in the sliding groove; the rotating rod is rotatably sleeved on the rotating shaft through the mounting hole.

In some embodiments of the present application, the elastic member is a torsion spring; the torsion spring is sleeved on the rotating shaft; the first end of the torsion spring is fixed on the lifting plate, and the second end of the torsion spring is arranged on the connecting rod to drive the connecting rod to rotate and enable one end of the rotating rod to be abutted against the inner side wall of the sliding groove.

In some embodiments of the present application, a mounting seat is convexly disposed on a side of the lifting plate facing the chute; the rotating shaft is convexly arranged on one side of the mounting seat, which is away from the lifting plate; the mounting seat is provided with a notch, and the first end of the torsion spring is clamped in the notch.

In some embodiments of the present application, the rotating shaft includes a first shaft body and a second shaft body coaxially arranged; the first shaft body is convexly arranged on one side, away from the lifting plate, of the mounting seat; the torsion spring is sleeved on the first shaft body; the second shaft body is convexly arranged at one end of the first shaft body, which is far away from the mounting seat, and the diameter of the first shaft body is larger than that of the second shaft body; the second shaft body is distributed in the chute; the rotating rod is rotatably sleeved on the second shaft body through the mounting hole.

According to some embodiments of the present application, an anti-slip portion is disposed at one end of the rotating rod, which abuts against the inner side wall of the sliding groove; the anti-slip part is used for increasing friction force between the end part of the rotating rod and the inner side wall of the sliding groove.

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

according to the refrigerator disclosed by the embodiment of the invention, the rotating rod is rotatably connected to the lifting plate, and can rotate under the drive of the elastic piece, so that one end of the rotating rod is abutted against the inner side wall of the sliding groove, the rotating rod can be relatively fixed with the sliding groove, and the lifting plate and the layer frame can also be relatively fixed with the sliding groove. Therefore, when the traction rope breaks, after the traction rope disappears to the lifting plate, the layer rack connected to the lifting plate cannot fall down, and the damage to articles placed on the layer rack is avoided.

When the traction rope is connected to the rotating rod and applies tension to the rotating rod, the tension of the traction rope to the lifting plate can force the rotating rod to overcome the driving force of the elastic piece to reversely rotate, the rotating rod is separated from the inner side wall of the sliding groove, and the lifting plate is not influenced to move up and down along the sliding groove. Therefore, the haulage rope can pull the bull stick, lifter plate and layer frame and reciprocate along the spout.

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 the structure of the portion of the layer stand 2 in fig. 1.

Fig. 3 is an enlarged schematic view of the area a in fig. 2.

Fig. 4 is a schematic view of the structure of fig. 3 with the layer stand 2 and cantilever 3 removed.

Fig. 5 is a B-B cross-sectional view of fig. 4.

Fig. 6 is an enlarged schematic view of the area C in fig. 5.

Fig. 7 is a schematic view of the structure of fig. 3 with the guide rail 5 removed.

Fig. 8 is an enlarged schematic view of the area D in fig. 7.

Fig. 9 is a schematic view of the structure of fig. 8 at another angle.

Fig. 10 is an exploded view of fig. 9.

Fig. 11 is a schematic view of the structure of fig. 6 in another state.

Fig. 12 is a schematic view of the structure of fig. 6 in yet another state.

The reference numerals are explained as follows: 1. a case; 11. a refrigeration compartment; 12. a tank liner; 13. a door body; 2. a layer rack; 21. a cantilever; 211. a clamping groove; 22. a shelf; 3. a lifting plate; 31. a mounting column; 32. a roller; 33. a connecting plate; 331. a through hole; 34. a rotating shaft; 341. a fixing member; 342. a fastener; 343. a first shaft body; 344. a second shaft body; 345. a mounting base; 3451. a notch; 4. a guide rail; 41. a chute; 5. a drive assembly; 51. a traction rope; 52. a driving motor; 53. a connecting block; 531. a first section; 532. a second section; 6. a rotating rod; 61. a driving end; 62. a locking end; 621. an anti-slip part; 63. a mounting hole; 64. a stop block; 65. a power arm; 66. resistance arm; 67. a first rotating lever; 68. a second rotating rod; 7. an elastic member; 71. a first end; 72. a second end; 73. a first elastic member; 74. a second elastic member; 8. and a connecting rod.

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," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements 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 terms in this application will be understood by those of ordinary skill in the art in a specific context.

For convenience of description, unless specified otherwise, directions of up, down, left, right, front and rear are all referred to a state of the refrigerator when the refrigerator is in use, and a door body of the refrigerator is in front and a direction opposite to the door body is in rear.

Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention. Fig. 2 is a schematic view of the structure of the portion of the layer stand 2 in fig. 1. Fig. 3 is an enlarged schematic view of the area a in fig. 2. Fig. 4 is a schematic view of the structure of fig. 3 with the layer stand 2 removed. Fig. 5 is a B-B cross-sectional view of fig. 4. Fig. 6 is an enlarged schematic view of the area C in fig. 5.

Referring to fig. 1 to 6, the refrigerator provided by the embodiment of the invention comprises a refrigerator body 1, a shelf 2, a lifting plate 3, a guide rail 4, a driving assembly 5, a rotating rod 6, an elastic piece 7 and a connecting rod 8.

Referring to fig. 1, the case 1 may have a rectangular parallelepiped shape. One or more refrigeration compartments 11 may be defined in the case 1, and the refrigeration compartments 11 may be a freezing chamber, a refrigerating chamber, a temperature changing chamber, or the like, where the plurality of refrigeration compartments 11 are used as different storage spaces inside the refrigerator, so that a user can store different food materials according to refrigeration requirements.

The box body 1 is internally provided with a box liner 12, and a refrigeration compartment 11 is formed in the box liner 12. It will be appreciated that one or more of the liners 12 may be provided. One or more refrigeration compartments 11 may also be defined within the same cabinet 12.

The front side of the box body 1 is provided with a door body 13 for opening and closing the refrigeration compartment 11. The door body 13 and the box body 1 can be connected through a hinge, so that the door body 13 of the refrigerator can rotate around the axis, the door body 13 of the refrigerator can be opened and closed, and the corresponding refrigeration compartment 11 is opened and closed. It is understood that the door 13 may be provided in plurality and is disposed in one-to-one correspondence with the refrigerating compartments 11. A plurality of door bodies 13 may simultaneously open and close one refrigerating compartment 11.

Referring to fig. 1 and 2, the shelf 2 is movably disposed in the refrigerating compartment 11 and can move up and down along the refrigerating compartment 11. The shelves 2 are horizontally arranged in the refrigerating compartment 11, and the shelves 2 are used for layering articles. The shelves 2 may be provided in plurality and arranged at intervals up and down.

In some embodiments, the shelf 2 includes a cantilever 21 and a shelf 22, the cantilever 21 extending in the front-rear direction of the case 1, the cantilever 21 being arranged in pairs in a group of two. The shelf 22 is horizontally installed on the cantilever 21, both ends of the shelf 22 are installed on one cantilever 21, respectively, and the shelf 22 can move up and down in the refrigerating compartment 11 along with the cantilever 21.

Referring to fig. 2 and 3, the lifting plate 3 is disposed at the rear end of the cantilever 21 and is connected to the cantilever 21. The cantilever 21 and the shelf 22 can move up and down in the refrigerating compartment 11 along with the lifting plate 3. The lifting plates 3 are provided in plurality and are arranged in one-to-one correspondence with the cantilevers 21.

In other embodiments, the cantilever 21 may not be needed, and the shelf 22 is directly connected to the lifting plate 3, so that the shelf 22 moves up and down in the refrigeration compartment 11 along with the lifting plate 3.

Referring to fig. 3, in some embodiments, a plurality of mounting posts 31 are protruding on the lifting plate 3, and a plurality of clamping grooves 211 adapted to the mounting posts 31 are concavely provided at the rear end of the cantilever 21, and the clamping grooves 211 are clamped on the mounting posts 31 in a one-to-one correspondence. When the shelf 2 needs to be detached for cleaning, the clamping groove 211 is separated from the mounting column 31, so that the shelf 2 is detached from the lifting plate 3. After the cleaning, the clamping groove 211 can be clamped on the mounting post 31, so that the quick mounting of the layer frame 2 is completed.

Referring to fig. 1 to 3, the guide rail 4 is vertically disposed in the refrigerating compartment 11 and is fixed to an inner wall of the liner 12. The lifting plate 3 is slidably connected to the guide rail 4 so that the shelf 2 and the lifting plate 3 can move up and down along the guide rail 4 within the refrigerated compartment 11. The guide rails 4 are provided in plurality and are arranged in one-to-one correspondence with the lifting plates 3.

Referring to fig. 3 and 5, in some embodiments, a vertically extending chute 41 is concavely disposed on a side of the guide rail 4 facing the lifting plate 3, a plurality of rollers 32 are rotatably connected to the lifting plate 3, and the plurality of rollers 32 are vertically spaced apart and are rollingly connected to the chute 41, so that the lifting plate 3 can smoothly move up and down along the guide rail 4 by using the cooperation of the rollers 32 and the chute 41.

In other embodiments, the lifting plate 3 is provided with a slider protruding upwards, and the slider extends into the sliding groove 41 on the guide rail 4 and is slidably connected to the sliding groove 41, so that the sliding groove 41 is used for guiding the movement of the lifting plate 3, and the lifting plate 3 can stably move up and down along the guide rail 4.

Referring to fig. 2, a driving assembly 5 is disposed in the box 1, and the driving assembly 5 is used for controlling the lifting plate 3 and the layer frame 2 to lift along the guide rail 4.

The drive assembly 5 comprises a traction rope 51 and a drive motor 52. The traction rope 51 is arranged above the lifting plate 3 and is connected with the lifting plate 3. The traction rope 51 drives the lifting plate 3 and the layer frame 2 to synchronously move up and down along the sliding groove 41 so as to adjust the position of the layer frame 2 in the refrigeration compartment 11 and furthest utilize the space of the refrigeration compartment 11. When the shelf 2 is adjusted to a proper position, the lifting plate 3 and the shelf 2 are balanced under the gravity of the lifting plate and the pulling force of the pulling rope 51 so as to be fixed at the adjusted height.

Fig. 7 is a schematic view of the structure of fig. 3 with the guide rail 4 removed. Fig. 8 is an enlarged schematic view of the area D in fig. 7. Fig. 9 is a schematic view of the structure of fig. 8 at another angle. Fig. 10 is an exploded view of fig. 9.

Referring to fig. 7 to 10, in some embodiments, a connecting plate 33 is protruding from a side of the lifting plate 3 facing the chute 41, and a through hole 331 is formed in the connecting plate 33. The connection block 53 is disposed below the connection plate 33, and the lower end of the traction rope 51 movably passes through the through hole 331 to be connected with the connection block 53. The connection block 53 moves upward and is supported on the bottom surface of the connection plate 33 by the pulling force provided by the pulling rope 51, and thus the pulling rope 51 can apply a pulling force to the lifting plate 3 by pulling the connection block 53. When the length of the pulling rope 51 is gradually shortened, the pulling rope 51 pulls the lifting plate 3 to move upward along the sliding groove 41, and the shelf 2 is moved upward synchronously. When the length of the traction rope 51 is gradually extended, the shelf 2 and the lifting plate 3 move downward along the chute 41 under the gravity of the shelf and the lifting plate.

Referring to fig. 8-10, in some embodiments, the connection block 53 includes a first portion 531 and a second portion 532. The first portion 531 is provided below the connection plate 33. The second portion 532 is protruding from the top surface of the first portion 531 and movably penetrates through the through hole 331. The lower end of the pulling rope 51 is connected to the second portion 532, and when the pulling rope 51 pulls the second portion 532, the first portion 531 can be supported on the bottom surface of the connection plate 33 to apply a pulling force to the lifting plate 3. Further, the movement of the second portion 532 can be regulated by the through hole 331, and the lift plate 3 can be stably moved up and down by the traction rope 51.

Referring to fig. 2, a driving motor 52 is used to control the shortening or lengthening of the traction rope 51 to automatically adjust the position of the shelf 2. The upper end of the traction rope 51 is connected with the output shaft of the driving motor 52, and when the driving motor 52 rotates, the traction rope 51 is driven to be wound on the output shaft of the driving motor 52, so that the length of the traction rope 51 is gradually shortened, and the layer frame 2 and the lifting plate 3 are pulled to move upwards along the sliding groove 41.

When the driving motor 52 rotates reversely, the traction rope 51 is released from the output shaft of the driving motor 52, and the length of the traction rope 51 is gradually extended, so that the shelf 2 and the lifting plate 3 can move downwards along the sliding groove 41 under the action of self gravity.

Fig. 11 is a schematic view of the structure of fig. 6 in another state. Fig. 12 is a schematic view of the structure of fig. 6 in yet another state.

Referring to fig. 11 and 12, and referring to fig. 6, the rotating rod 6 is rotatably connected to the lifting plate 3 and disposed in the chute 41. One end of the rotating rod 6 is a driving end 61 and is used for being connected with the connecting block 53 above, and the other end of the rotating rod 6 is a locking end 62 and is used for propping against the inner side wall of the sliding groove 41. The axis of rotation of the rotating rod 6 is located between the driving end 61 and the locking end 62.

Referring to fig. 11, when the traction rope 51 is accidentally broken, the traction rope 51 no longer applies tension to the connection block 53, the rotation lever 6, the lifting plate 3 and the landing 2. The locking end 62 of the rotating rod 6 is abutted against the inner side wall of the sliding groove 41, so that the rotating rod 6 and the sliding groove 41 are relatively fixed, and the lifting plate 3 and the layer frame 2 are relatively fixed on the guide rail 4, and therefore, even if the pulling force of the pulling rope 51 on the connecting block 53, the rotating rod 6, the lifting plate 3 and the layer frame 2 is lost, the connecting block 53, the rotating rod 6, the lifting plate 3 and the layer frame 2 cannot fall.

In some embodiments, the locking end 62 of the rotating rod 6 abutting against the inner side wall of the sliding groove 41 is provided with an anti-slip portion 621, so that the anti-slip portion 621 can abut against the inner side wall of the sliding groove 41 when the rotating rod 6 rotates. The anti-slip part 621 and the inner side wall of the chute 41 generate larger friction resistance, so that the rotating rod 6 is more stably fixed on the chute 41.

In some embodiments, the anti-slip portion 621 is a rubber pad having good wear resistance, ensuring the useful life of the anti-slip portion 621. Moreover, by utilizing the elasticity of the rubber pad, when the rubber pad is abutted against the inner side wall of the sliding groove 41, the rubber pad deforms, so that a larger contact area is formed between the rubber pad and the inner side wall of the sliding groove 41, larger friction resistance is generated, and the rotating rod 6 is further stably fixed on the sliding groove 41.

The elastic member 7 is connected to the rotating rod 6, and the elastic member 7 is used for driving the rotating rod 6 to rotate, so that the locking end 62 can automatically abut against the inner side wall of the sliding groove 41, as shown in fig. 11.

Referring to fig. 6, a connecting rod 8 is disposed between the connecting block 53 and the rotating rod 6, the upper end of the connecting rod 8 is hinged to the connecting block 53, and the lower end of the connecting rod 8 is connected to the driving end 61 of the rotating rod 6. When the traction rope 51 pulls the connecting block 53 to move upwards and is supported on the bottom surface of the connecting plate 33, the upper end of the connecting rod 8 can rotate around the connecting block 53, and the lower end of the connecting rod 8 can force the rotating rod 6 to rotate reversely against the driving force of the elastic piece 7, so that the locking end 62 of the rotating rod 6 is separated from the inner side wall of the sliding groove 41. Further, frictional resistance between the locking end 62 and the inner wall of the slide groove 41 is eliminated, and the rotating lever 6 can move up and down in the slide groove 41, and the lifting plate 3 and the shelf 2 can also move up and down along the slide groove 41.

In other embodiments, the connection block 53 may also be connected to the drive end 61 of the rotating rod 6 by a pull cord.

In other embodiments, the traction rope 51 may be directly connected to the driving end 61 of the rotating rod 6, and the traction rope 51 is tied under the connecting plate 33, and the knot is larger than the aperture of the through hole 331. The traction rope 51 can directly drive the rotating rod 6 to reversely rotate, and the connecting plate 33 is supported by the knots.

Referring to fig. 10 in combination with fig. 8 and 9, in some embodiments, the rotating rod 6 is provided with a mounting hole 63, and a side of the lifting plate 3 facing the sliding slot 41 is convexly provided with a rotating shaft 34, and the rotating shaft 34 is distributed in the sliding slot 41 and passes through the mounting hole 63. Namely, the rotating rod 6 is rotatably sleeved on the rotating shaft 34 through the mounting hole 63, so that the rotating rod 6 can rotate in the sliding groove 41 around the rotating shaft 34. The fixed part 341 is arranged on one side of the rotating rod 6, which is away from the lifting plate 3, and is connected with the rotating shaft 34 in the mounting hole 63 through the fastener 342, and the diameter of the fixed part 341 is larger than that of the mounting hole 63, so that the fixed part 341 can clamp the rotating rod 6 between the fixed part 341 and the lifting plate 3, and the fixed part 341 is prevented from being separated from the rotating shaft 34.

It should be noted that, in other embodiments, the fixing member 341 may not be required, and the end of the rotating shaft 34 facing away from the lifting plate 3 extends out of the mounting hole 63, and is deformed by extrusion at the end portion to increase the width of the end portion, so as to prevent the rotating rod from being separated from the rotating shaft 34. A rivet may be further disposed on one side of the rotating rod 6 away from the lifting plate 3, the rivet is inserted into the rotating shaft 34, and then the rotating rod 6 is clamped between the rivet and the lifting plate 3, so as to prevent the fixing piece 341 from separating from the rotating shaft 34. A fixing ring can be further arranged on one side, away from the lifting plate 3, of the rotating rod 6, and the rotating shaft 34 is sleeved with the fixing ring, so that the rotating rod 6 can be clamped between the fixing ring and the lifting plate 3 through the fixing ring.

In some embodiments, the shaft 34 includes a first shaft body 343 and a second shaft body 344 coaxially disposed. The first shaft body 343 is convexly arranged at one side of the lifting plate 3 facing the sliding groove 41, the second shaft body 344 is convexly arranged at one end of the first shaft body 343, which is away from the lifting plate 3, and is distributed in the sliding groove 41, and the diameter of the first shaft body 343 is larger than that of the second shaft body 344.

The elastic member 7 is a torsion spring and is sleeved on the first shaft body 343. The first end 71 of the torsion spring is fixed to the lifter plate 3. The second end 72 of the torsion spring is connected to the rotating rod 6. The second end 72 of the torsion spring is driven to rotate by the driving force of the torsion spring, and the locking end 62 of the torsion spring 6 can be abutted against the inner side wall of the chute 41.

The fixed part 341 is arranged on one side of the rotating rod 6, which is away from the lifting plate 3, and is connected with the second shaft body 344 in the mounting hole 63 through the fastener 342, so that the fixed part 341 can clamp the rotating rod 6 between the fixed part 341 and the end face of the first shaft body 343, and the rotating rod 6 is prevented from being separated from the second shaft body 344.

In some embodiments, the locking end 62 of the rotating rod 6 abutting against the inner side wall of the sliding groove 41 is provided with a stop 64 in a protruding manner, and the second end 72 of the torsion spring is arranged below the rotating rod 6 and abuts against the stop 64, so that the second end 72 of the torsion spring is limited below the rotating rod 6 by the stop 64 to prevent the torsion spring from being separated from the rotating rod 6.

In other embodiments, the rotating rod 6 is provided with a fixing hole, and the second end 72 of the torsion spring is inserted into the fixing hole. It will be appreciated that the second end 72 of the torsion spring may be inserted into the driving end 61 of the rotating rod 6 to drive the rotating rod 6 to rotate and enable the locking end 62 to abut against the inner side wall of the chute 41. Alternatively, torsion springs with different torsion directions can be used, so that the second end 72 of the torsion spring can be inserted into the locking end 62 of the rotating rod 6, and the rotating rod 6 can be driven to rotate, and the locking end 62 can be abutted against the inner side wall of the sliding groove 41.

In other embodiments, the elastic member 7 is disposed above the rotating rod 6, the first end 71 of the elastic member 7 is connected to the inner side wall of the sliding slot 41, the second end 72 of the elastic member 7 is connected to the locking end 62 of the rotating rod 6, and the elastic member 7 provides a pulling force to rotate the rotating rod 6 and make the locking end 62 of the rotating rod 6 abut against the inner side wall of the sliding slot 41. The fixing member 341 sandwiches the rotating lever 6 between the fixing member 341 and the lifting plate 3.

It will be appreciated that the elastic member 7 may be disposed under the rotating rod 6, and the elastic member 7 provides a pushing force to rotate the rotating rod 6.

In some embodiments, a side of the lifting plate 3 facing the chute 41 is convexly provided with a mounting seat 345, and the first shaft body 343 is convexly provided on a side of the mounting seat 345 facing away from the lifting plate 3. The mounting seat 345 is provided with a notch 3451, and the first end 71 of the torsion spring is clamped in the notch 3451, so that the first end 71 of the torsion spring is fixed on the mounting seat 345.

It should be noted that, an insertion hole may be provided in the mounting seat 345, and the first end 71 of the torsion spring may be inserted and fixed into the insertion hole, so that the first end 71 of the torsion spring is fixed to the mounting seat 345.

The following will specifically describe a case where the pulling force of the pulling rope 51 is lost when the pulling rope 51 pulls the lifting plate 3 up and down in conjunction with the above-described embodiment:

referring to fig. 6, the portion of the rotary shaft 6 from the rotary shaft to the driving end 61 is hereinafter defined as a power arm 65, and the portion of the rotary shaft 6 from the rotary shaft to the locking end 62 is hereinafter defined as a resistance arm 66. The power arm 65 and the resistance arm 66 are disposed at an angle and rotate about the axis of rotation. It should be noted that, in other embodiments, the power arm 65 and the resistance arm 66 may not be disposed at an angle.

The power arm 65 is located between the connecting rod 8 and the rotating shaft, and one end of the power arm 65 away from the rotating shaft is a driving end 61 and is hinged to the lower end of the connecting rod 8. The resistance arm 66 is located between the rotation axis and the inner side wall of the chute 41, and the end of the resistance arm 66 away from the rotation axis is the locking end 62. The second end 72 of the elastic member 7 is connected to the resistance arm 66 to drive the power arm 65 and the resistance arm 66 to rotate synchronously, and the locking end 62 of the resistance arm 66 abuts against the inner side wall of the chute 41.

Referring to fig. 6, when the traction rope 51 pulls the connecting block 53 to move upwards and support the connecting block 33 on the bottom surface, the upper end of the connecting rod 8 rotates around the connecting block 53, the lower end of the connecting rod 8 drives the power arm 65 and the resistance arm 66 to rotate reversely around the rotating shaft against the driving force of the elastic member 7, at this time, the power arm 65 is approximately horizontal, the included angle between the resistance arm 66 and the horizontal direction is larger, the locking end 62 of the resistance arm 66 is separated from the inner side wall of the chute 41, and further the frictional resistance between the locking end 62 and the inner side wall of the chute 41 disappears, so that the lifting plate 3 can slide up and down freely relative to the guide rail 4, and the layer frame 2 can move up and down relative to the guide rail 4 under the driving of the driving assembly 5. Specifically, when the pulling rope 51 is shortened, the pulling rope 51 can pull the lifting plate 3 and the shelf 2 to move upward through the connection block 53. When the traction rope 51 is extended, the lifting plate 3 and the layer frame 2 can move downward under the action of self gravity.

Referring to fig. 11, after the pulling force of the pulling rope 51 disappears, the power arm 65 and the resistance arm 66 rotate under the driving of the elastic member 7, and at this time, the angle between the power arm 65 and the horizontal direction becomes large, and the angle between the resistance arm 66 and the horizontal direction becomes small, so that the locking end 62 of the resistance arm 66 abuts against the inner sidewall of the chute 41. And then the frictional resistance that produces between locking end 62 and the inside wall of spout 41, bull stick 6 can be fixed with spout 41 relatively to prevent to fall with the lift plate 3 that bull stick 6 links to each other, and then make lift plate 3 and layer frame 2 relatively fixed on guide rail 4, avoided damaging the article of placing on layer frame 2.

Referring to fig. 12, after the locking end 62 of the resistance arm 66 abuts against the inner side wall of the chute 41, due to the influence of the gravity of the lifting plate 3, the inner side wall of the chute 41 provides an upward friction force to the locking end 62, and the power arm 65 and the resistance arm 66 continue to rotate, at this time, the included angle between the power arm 65 and the horizontal direction further increases, and the resistance arm 66 approaches to the horizontal direction until the resistance arm 66 is blocked between the rotating shaft and the inner side wall of the chute 41, so that the locking end 62 of the resistance arm 66 abuts against the inner side wall of the chute 41 more firmly, and the lifting plate 3 is further prevented from falling.

Referring to fig. 11 and 12, in conjunction with fig. 6, in some embodiments, two rotating rods 6 are provided, a first rotating rod 67 and a second rotating rod 68, respectively. The first rotating rod 67 and the second rotating rod 68 are symmetrically arranged in the chute 41 in a splayed shape. The end of the first rotating rod 67 near the second rotating rod 68 is the driving end 61 of the first rotating rod 67, and the end of the first rotating rod 67 far from the second rotating rod 68 is the locking end 62 of the first rotating rod 67. The end of the second rotating rod 68 adjacent to the first rotating rod 67 is the driving end 61 of the second rotating rod 68, and the end of the second rotating rod 68 remote from the first rotating rod 67 is the locking end 62 of the second rotating rod 68.

The elastic member 7 is provided with two, a first elastic member 73 and a second elastic member 74, respectively. The first elastic member 73 is disposed on the first rotating rod 67, and can drive the first rotating rod 67 to rotate, so that the locking end 62 of the first rotating rod 67 abuts against the inner side wall of the chute 41. The second elastic member 74 is disposed on the second rotating rod 68, and the second elastic member 74 can drive the second rotating rod 68 to rotate reversely, so that the locking end 62 of the second rotating rod 68 abuts against the other inner side wall of the sliding slot 41.

When the driving end 61 of the first rotating rod 67 and the driving end 61 of the second rotating rod 68 are both hinged on the connecting block 53, and the traction rope 51 pulls the connecting block 53 to move upwards and support the connecting block 33 on the bottom surface, the connecting block 53 pulls the first rotating rod 67 to rotate reversely against the driving force of the first elastic piece 73, so that the locking end 62 of the first rotating rod 67 is separated from the inner side wall of the sliding groove 41. And simultaneously pulls the second rotating rod 68 to rotate against the driving force of the second elastic member 74, so that the locking end 62 of the second rotating rod 68 is separated from the other inner side wall of the sliding groove 41, and the traction rope 51 can drive the lifting plate 3 to move up and down, as shown in fig. 6.

When the pulling force of the pulling rope 51 on the connecting block 53 is lost, the connecting block 53 moves downward and is separated from the connecting plate 33, and the first rotating rod 67 is driven by the first elastic member 73 to rotate, so that the locking end 62 of the first rotating rod 67 abuts against the inner side wall of the sliding groove 41. The second rotating rod 68 is reversely rotated by the second elastic member 74 so that the locking end 62 of the second rotating rod 68 is abutted against the other inner side wall of the slide groove 41, and the lifting plate 3 can be more stably fixed to the slide groove 41 by the frictional force applied to the first rotating rod 67 and the second rotating rod 68, as shown in fig. 11 and 12.

Based on the technical scheme, the embodiment of the invention has at least the following advantages and positive effects.

According to the refrigerator disclosed by the embodiment of the invention, the rotating rod 6 is rotatably connected to the lifting plate 3, and the rotating rod 6 can rotate under the drive of the elastic piece 7, so that one end of the rotating rod 6 is abutted against the inner side wall of the sliding groove 41, the rotating rod 6 can be relatively fixed with the sliding groove 41, and the lifting plate 3 and the layer frame 2 can also be relatively fixed with the sliding groove 41. Therefore, when the traction rope 51 breaks, after the pulling force of the traction rope 51 on the lifting plate 3 disappears, the layer frame 2 connected to the lifting plate 3 cannot fall, and damage to articles placed on the layer frame 2 is avoided.

When the traction rope 51 is connected to the rotating rod 6 and applies a pulling force to the rotating rod 6, the pulling force of the traction rope 51 to the lifting plate 3 can force the rotating rod 6 to reversely rotate against the driving force of the elastic piece 7, and the rotating rod 6 is separated from the inner side wall of the sliding groove 41, so that the lifting plate 3 is not influenced to move up and down along the sliding groove 41. Therefore, the pulling rope 51 can pull the rotating rod 6, the lifting plate 3 and the landing 2 up and down along the sliding groove 41.

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

1. A refrigerator, comprising:

the box body is internally provided with a box liner;

the guide rail is vertically arranged on the inner wall of the box liner, and a vertically extending chute is concavely arranged in the guide rail;

the lifting plate is connected to the chute in a sliding way;

the layer frame is arranged in the box liner and connected to the lifting plate;

the lower end of the traction rope is connected with the lifting plate, and the traction rope is used for providing pulling force and pulling the lifting plate to move up and down along the sliding groove;

the rotating rod is rotationally connected to the lifting plate and is arranged in the chute;

the elastic piece is connected with the rotating rod and can drive the rotating rod to rotate so that one end of the rotating rod is abutted against the inner side wall of the sliding groove;

the lower end of the traction rope is connected with the other end of the rotating rod, and the pulling force of the traction rope on the lifting plate can force the rotating rod to overcome the driving force of the elastic piece to reversely rotate, so that the rotating rod is separated from the inner side wall of the sliding groove;

after the pulling force of the pulling rope on the lifting plate disappears, the elastic piece can drive the rotating rod to rotate, and one end of the rotating rod is abutted with the inner side wall of the sliding groove.

2. The refrigerator of claim 1, further comprising a connection block;

a connecting plate is convexly arranged on one side of the lifting plate, which faces the sliding groove;

the connecting plate is provided with a through hole which penetrates up and down;

the connecting block is arranged below the connecting plate, and the lower end of the traction rope movably penetrates through the through hole and is connected with the connecting block;

the connecting block is arranged above the rotating rod and is connected with one end of the rotating rod, which is far away from the inner side wall of the sliding groove;

the pulling force provided by the pulling rope drives the connecting block to be supported on the bottom surface of the connecting plate, and the rotating rod is forced to reversely rotate by the connecting block against the driving force of the elastic piece.

3. The refrigerator of claim 2, further comprising a connecting rod provided between the connecting block and the rotating rod;

the upper end of the connecting rod is hinged to the connecting block;

the lower end of the connecting rod is hinged to one end of the rotating rod, which is far away from the inner side wall of the sliding groove;

when the connecting block is supported on the bottom surface of the connecting plate, the upper end of the connecting rod rotates around the connecting block, and the lower end of the connecting rod forces the rotating rod to reversely rotate against the driving force of the elastic piece.

4. The refrigerator of claim 2, wherein the connection block includes a first portion and a second portion;

the first part is arranged below the connecting plate;

the second part is convexly arranged on the top surface of the first part and movably penetrates through the through hole;

the lower end of the traction rope is connected with the second part, and the first part is supported on the bottom surface of the connecting plate under the driving of the traction rope by providing tension force;

the first portion is connected with one end of the rotating rod, which is far away from the inner side wall of the sliding groove.

5. The refrigerator as claimed in claim 2, wherein the rotating bars are provided in two, a first rotating bar and a second rotating bar, respectively;

the first rotating rod and the second rotating rod are respectively arranged at two sides of the connecting block;

one end of the first rotating rod, which is close to the second rotating rod, is hinged to the connecting block;

one end of the second rotating rod, which is close to the first rotating rod, is hinged to the connecting block;

the elastic pieces are two, namely a first elastic piece and a second elastic piece;

the first elastic piece is arranged on the first rotating rod and can drive the first rotating rod to rotate, so that one end, far away from the second rotating rod, of the first rotating rod is abutted against the inner side wall of the sliding groove;

the second elastic piece is arranged on the second rotating rod, and the second elastic piece can drive the second rotating rod to reversely rotate, so that one end, far away from the first rotating rod, of the second rotating rod is abutted against the other inner side wall of the sliding groove.

6. The refrigerator as claimed in claim 1, wherein the rotating lever is provided with a mounting hole;

a rotating shaft is convexly arranged on one side of the lifting plate, which faces the sliding groove, and the rotating shaft is distributed in the sliding groove;

the rotating rod is rotatably sleeved on the rotating shaft through the mounting hole.

7. The refrigerator as claimed in claim 6, wherein the elastic member is a torsion spring;

the torsion spring is sleeved on the rotating shaft;

the first end of the torsion spring is fixed on the lifting plate, and the second end of the torsion spring is arranged on the connecting rod to drive the connecting rod to rotate and enable one end of the rotating rod to be abutted against the inner side wall of the sliding groove.

8. The refrigerator as claimed in claim 7, wherein a mounting seat is protruded at a side of the lifting plate facing the sliding groove;

the rotating shaft is convexly arranged on one side of the mounting seat, which is away from the lifting plate;

the mounting seat is provided with a notch, and the first end of the torsion spring is clamped in the notch.

9. The refrigerator as claimed in claim 8, wherein the rotation shaft includes a first shaft body and a second shaft body coaxially arranged;

the first shaft body is convexly arranged on one side, away from the lifting plate, of the mounting seat;

the torsion spring is sleeved on the first shaft body;

the second shaft body is convexly arranged at one end of the first shaft body, which is far away from the mounting seat, and the diameter of the first shaft body is larger than that of the second shaft body;

the second shaft body is distributed in the chute; the rotating rod is rotatably sleeved on the second shaft body through the mounting hole.

10. The refrigerator of claim 1, wherein one end of the rotating rod, which is abutted against the inner side wall of the sliding groove, is provided with an anti-slip part; the anti-slip part is used for increasing friction force between the end part of the rotating rod and the inner side wall of the sliding groove.