Lifting adjusting mechanism, shelf assembly and refrigerator

Abstract

The utility model provides a lifting adjusting mechanism, a shelf assembly and a refrigerator, and belongs to the technical field of refrigerators.The lifting adjusting mechanism comprises two connecting rods hinged to each other and a sliding guide rod assembly, a riveting pin is arranged at the hinged position of the two connecting rods, a limiting pin is arranged on the riveting pin, and connecting parts are arranged at the ends, deviating from each other, of the two connecting rods; a guide groove is formed in the sliding guide rod assembly, a clamping groove is formed in the edge of the guide groove, the riveting pin is movably arranged in the guide groove, and the limiting pin is connected with the clamping groove in a clamped mode. According to the adjusting mechanism, the relative distance between parts connected with the connecting part can be adjusted by adjusting the position of the rivet pin in the guide groove, namely lifting adjustment between different parts is achieved, and different use requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, and in particular to a lifting and lowering adjustment mechanism, a shelf assembly and a refrigerator. Background Art

[0002] As a common electrical appliance, refrigerators usually consist of one or more storage compartments that are kept at low temperatures through a refrigeration system. The main function of a refrigerator is to extend the shelf life of food and prevent it from spoiling and rotting; it can also help people preserve fresh ingredients and make them available whenever they need them.

[0003] A refrigerator is usually provided with multiple shelves for placing items, and the distances between different shelves in existing refrigerators are basically fixed; food and vegetables are piled up on the shelves, which easily causes the items to be compressed, making the taste of the food itself worse or even spoiled; if they are not piled up, only one layer of items is placed on the shelf, which will cause a waste of space above, reducing the available space of the refrigerator.

[0004] Therefore, it is necessary to improve the existing refrigerator shelves to fully utilize the space inside the refrigerator and reduce the mutual squeezing between stored items. Utility Model Content

[0005] In order to overcome the problems existing in the related art, one of the purposes of the utility model is to provide a lifting and adjusting mechanism, which can adjust the relative distance between components connected to the connecting part by adjusting the position of the rivet pin in the guide groove, that is, to achieve lifting and lowering adjustment between different components, which can meet different usage requirements.

[0006] A lifting and adjusting mechanism comprises two connecting rods hinged to each other, a rivet pin is provided at the hinge of the two connecting rods, a limit pin is provided on the rivet pin, and a connecting portion is provided at one end of the two connecting rods which are away from each other;

[0007] A sliding guide rod assembly is provided with a guide groove, a clamping groove is provided at the edge of the guide groove, the rivet pin is movably arranged in the guide groove, and the limit pin and the clamping groove are clamped with each other.

[0008] The lifting and lowering adjustment mechanism changes the connection point of the two connecting rods by adjusting the position of the rivet pin in the guide groove, thereby adjusting the relative position of the two connecting parts of the two connecting rods, that is, adjusting the height of the component connected to the connecting part.

[0009] In a preferred technical solution of the utility model, the guide groove is arranged along the length direction of the sliding guide rod assembly, a plurality of the clamping grooves are arranged on the edge of the guide groove, and a plurality of the clamping grooves are arranged along the length direction of the guide groove.

[0010] The arrangement of multiple snap-in grooves in the guide groove enables the rivet pins to be snap-into different snap-in grooves, and the connection points of the two connecting rods have multiple different adjustment methods, so the lifting and lowering adjustment structure can meet different height adjustments.

[0011] In a preferred technical solution of the utility model, a plurality of the clamping grooves are arranged at the edges on two opposite sides of the guide groove, and the plurality of the clamping grooves are arranged along the length direction of the guide groove.

[0012] The limit pin is specifically designed according to the structure of the clamping groove. The clamping grooves on both sides cooperate with the limit pin to ensure uniform force between the limit pin and the clamping groove, thereby ensuring that the connection points between the connecting rods can be effectively limited.

[0013] In a preferred technical solution of the utility model, the sliding guide rod assembly includes a first guide rod and a second guide rod, and the second guide rod is sleeved on one end of the first guide rod;

[0014] The first guide rod is provided with a first slot body, and the second guide rod is provided with a second slot body. When the second guide rod is sleeved on the first guide rod, a guide slot is formed between the first slot body and the second slot body. Both the first slot body and the second slot body are provided with a clamping slot.

[0015] The first guide rod and the second guide rod connected to each other can extend the length of the guide groove, so that the rivet pin has more adjustment positions, and thus the range of height adjustment of the connection part with the connecting rod is wider.

[0016] In a preferred technical solution of the utility model, a limit screw is provided on the second guide rod, and a plurality of limit holes matching with the limit screw are provided on the first guide rod;

[0017] A plurality of the limiting holes are arranged on the first guide rod along the length direction of the first slot body.

[0018] The cooperation between the limiting screw and the limiting hole can determine the relative position between the first guide rod and the second guide rod, thereby limiting the length of the guide groove and preventing the first guide rod and the second guide rod from sliding disorderly.

[0019] In a preferred technical solution of the utility model, along the width direction of the second guide rod, sliding grooves are provided at the edges of both sides of the second guide rod, and the sliding grooves are adapted to the edges of the first guide rod;

[0020] A limiting block is provided at one end of the second guide rod along the length direction of the second guide rod.

[0021] The second guide rod is slidably matched with the first guide rod through the sliding groove, so as to facilitate adjusting the length of the guide groove. The limit block limits the matching position of the second guide rod and the first guide rod.

[0022] In a preferred technical solution of the utility model, the rivet pin includes a coaxially arranged torsion rod, a button, the limit pin and a locking nut, the torsion rod passes through the button and is threadedly connected to the locking nut, the limit pin is arranged between the button and the locking nut, a spring is arranged between the limit pin and the locking nut, and one side of the button abuts against the limit pin.

[0023] One side of the spring contacts the locking nut, and the other side contacts the limiting pin. When the clamping block is clamped on one side wall of the clamping slot, the rivet pin is confined in the guide slot. When the rivet pin needs to be moved, the rivet pin is rotated so that the positions of the clamping block and the clamping slot correspond to each other. At this time, the spring pushes the clamping block out of the clamping slot, and the position of the rivet pin can be adjusted as needed.

[0024] The second purpose of the utility model is to provide a shelf assembly, which includes stacked frames, a lifting and lowering adjustment mechanism as described above is arranged between two adjacent frames, and the connecting portion of the connecting rod is connected to the frames.

[0025] In a preferred technical solution of the utility model, the frame includes a frame and a frame arranged on the frame, and the frame is provided with a bayonet.

[0026] A third object of the present utility model is to provide a refrigerator comprising the shelf assembly as described above.

[0027] The beneficial effects of the utility model are:

[0028] The lifting and lowering adjustment mechanism provided by the utility model comprises two connecting rods hinged to each other and a sliding guide rod assembly, wherein a rivet pin is provided at the hinge of the two connecting rods, a limit pin is provided on the rivet pin, and a connecting part is provided at one end of the two connecting rods which are away from each other; a guide groove is provided on the sliding guide rod assembly, a clamping groove is provided at the edge of the guide groove, the rivet pin is movably arranged in the guide groove, and the limit pin and the clamping groove are clamped to each other. During use, the connecting parts of the two connecting rods are respectively connected to different components, and the two connecting rods can form support for the connected components. Changing the position of the hinge of the two connections can change the distance between the connecting parts of the two connecting rods. Therefore, by adjusting the position of the rivet pin in the guide groove, the connection point of the two connecting rods can be changed, so as to adjust the relative position of the two connecting parts of the two connecting rods, that is, to adjust the height of the component connected to the connecting part. By clamping the limit pin and the clamping groove to each other, the position of the rivet pin can be limited, that is, the connection point of the two connecting rods can be limited, so that the position of the two connecting parts is positioned, which is convenient and practical. The lifting and lowering adjustment structure can adjust the height between the components connected to the connecting rod according to needs, and is easy to use and highly flexible.

[0029] The present application also provides a shelf assembly and a refrigerator including the above-mentioned lifting and adjusting mechanism. The shelf assembly is placed in the refrigerator and can adjust the number and height of the shelves according to needs, which helps to make full use of the use space of the refrigerator and reduce the mutual squeezing of items stored in the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of the lifting and lowering adjustment mechanism provided by the utility model;

[0031] Figure 2 It is a three-dimensional diagram of the rivet pin provided by the utility model;

[0032] Figure 3 It is an exploded view of the rivet pin provided by the utility model;

[0033] Figure 4 It is a structural schematic diagram of the sliding guide rod assembly provided by the utility model;

[0034] Figure 5 It is a schematic diagram of the structure of the shelf assembly provided by the utility model when it is closed;

[0035] Figure 6 It is a structural schematic diagram of the shelf assembly provided by the utility model when it is unfolded;

[0036] Figure 7 yes Figure 5 A partial enlarged view of point A in the middle.

[0037] Reference numerals:

[0038] 1. Sliding guide rod assembly; 11. First guide rod; 111. Limiting hole; 12. Second guide rod; 121. Limiting screw; 122. Slide groove; 123. Limiting block; 2. Connecting rod; 3. Rivet pin; 31. Button; 32. Limiting pin; 321. Block; 33. Spring; 34. Torsion bar; 35. Locking nut; 4. Guide groove; 41. First slot body; 42. Second slot body; 43. Snap-in groove; 100. Frame; 110. Frame; 120. Frame; 1201. Bayonet. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0040] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0041] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] As a common electrical appliance, refrigerators usually consist of one or more storage compartments that are kept at low temperatures through a refrigeration system. The main function of a refrigerator is to extend the shelf life of food and prevent it from spoiling and rotting; it can also help people preserve fresh ingredients and make them available whenever they need them.

[0043] A refrigerator is usually provided with multiple shelves for placing items. The distances between different shelves in existing refrigerators are basically fixed. Food and vegetables are piled up on the shelves, which easily causes the items to be compressed, making the taste of the food itself worse or even deteriorating. If the items are not piled up, only one layer of items is placed on the shelf, which will waste the space above and reduce the available space of the refrigerator. Based on this, the present application provides a compressor to overcome the defects of the prior art.

[0044] Example 1

[0045] like Figure 1-Figure 4 As shown, this embodiment provides a lifting and lowering adjustment mechanism, including two connecting rods 2 hinged to each other and a sliding guide rod assembly 1, a rivet pin 3 is provided at the hinge of the two connecting rods 2, a limit pin 32 is provided on the rivet pin 3, and a connecting portion is provided at one end of the two connecting rods 2 that are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, a clamping groove 43 is provided at the edge of the guide groove 4, the rivet pin 3 is movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0046] During use, the connecting parts of the two connecting rods 2 are respectively connected to different parts, and the two connecting rods 2 can form support for the connected parts. Changing the position of the hinges of the two connections can change the distance between the connecting parts of the two connecting rods 2. Therefore, by adjusting the position of the rivet pin 3 in the guide groove 4, the connection point of the two connecting rods 2 can be changed, so as to adjust the relative position of the two connecting parts of the two connecting rods 2, that is, to adjust the height of the parts connected to the connecting parts. By mutually engaging the limit pin 32 and the clamping groove 43, the position of the rivet pin 3 can be limited, that is, the connection point of the two connecting rods 2 can be limited, so that the position of the two connecting parts can be located, which is convenient and practical. The lifting and lowering adjustment structure can adjust the height between the parts connected to the connecting rod 2 according to the needs, and is easy to use and highly flexible.

[0047] Specifically, the lifting and adjusting mechanism of the present application can be used to adjust the height of the shelf of the refrigerator, and can also be used to adjust the height of the stacked brackets. The specific method of use is:

[0048] The plates to be stacked are respectively connected to the connecting parts of the two connecting rods 2. It should be noted that the structure of the connecting part of the present application is not limited, and it can be a flat plate structure or a through hole set on the connecting rod 2. In addition, it should be noted that in order to facilitate the adjustment of the height of different plates, the best connection method between the connecting part and the connecting plate is to rotate the two mutually.

[0049] In addition, four lifting and lowering adjustment mechanisms can be arranged between two stacked plates to ensure force balance between the plates.

[0050] Example 2

[0051] like Figure 1-Figure 4 As shown, this embodiment includes the above-mentioned lifting and lowering adjustment mechanism, which includes two connecting rods 2 hinged to each other and a sliding guide rod assembly 1, a rivet pin 3 is provided at the hinge of the two connecting rods 2, a limit pin 32 is provided on the rivet pin 3, and a connecting portion is provided at one end of the two connecting rods 2 that are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, a clamping groove 43 is provided at the edge of the guide groove 4, the rivet pin 3 is movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0052] In this embodiment, the guide groove 4 is arranged along the length direction of the sliding guide rod assembly 1, and a plurality of the clamping grooves 43 are arranged on the edge of the guide groove 4, and a plurality of the clamping grooves 43 are arranged along the length direction of the guide groove 4.

[0053] The arrangement of multiple engaging grooves 43 in the guide groove 4 enables the rivet pin 3 to be engaged in different engaging grooves 43 , and the connection point of the two connecting rods 2 has a variety of different adjustment methods, so the lifting and lowering adjustment structure can meet different height adjustments.

[0054] More specifically, when the limit pin 32 is engaged in the engaging groove 43, the rivet pin 3 cannot move in the guide groove 4, and at this time the relative distance between the connecting parts of the two connecting rods 2 is determined; when the limit pin 32 is engaged in the engaging groove 43, the rivet pin 3 can move in the guide groove 4, and at this time the relative distance between the connecting parts of the two connecting rods 2 can be adjusted.

[0055] Example 3

[0056] like Figure 1-Figure 4 As shown, this embodiment includes the above-mentioned lifting and lowering adjustment mechanism, which includes two connecting rods 2 hinged to each other and a sliding guide rod assembly 1, a rivet pin 3 is provided at the hinge of the two connecting rods 2, a limit pin 32 is provided on the rivet pin 3, and a connecting portion is provided at one end of the two connecting rods 2 that are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, a clamping groove 43 is provided at the edge of the guide groove 4, the rivet pin 3 is movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0057] The guide groove 4 is arranged along the length direction of the sliding guide rod assembly 1 , a plurality of the clamping grooves 43 are arranged on the edge of the guide groove 4 , and a plurality of the clamping grooves 43 are arranged along the length direction of the guide groove 4 .

[0058] In this embodiment, a plurality of the clamping grooves 43 are provided at the edges of the guide groove 4 on two opposite sides, and the plurality of the clamping grooves 43 are provided along the length direction of the guide groove 4 .

[0059] The limiting pin 32 is specifically designed according to the structure of the clamping groove 43. The clamping grooves 43 on both sides cooperate with the limiting pin 32 to ensure uniform force between the limiting pin 32 and the clamping groove 43, thereby ensuring that the connection point between the connecting rods 2 can be effectively limited.

[0060] In actual application, the lifting and lowering adjustment mechanism is mainly used to adjust the height between two parallel plate-shaped objects, and the clamping grooves 43 are arranged on the upper and lower sides of the guide groove 4 .

[0061] Example 4

[0062] like Figure 1-Figure 4 As shown, this embodiment includes the above-mentioned lifting and lowering adjustment mechanism, which includes two connecting rods 2 hinged to each other and a sliding guide rod assembly 1, a rivet pin 3 is provided at the hinge of the two connecting rods 2, a limit pin 32 is provided on the rivet pin 3, and a connecting portion is provided at one end of the two connecting rods 2 that are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, a clamping groove 43 is provided at the edge of the guide groove 4, the rivet pin 3 is movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0063] The guide groove 4 is arranged along the length direction of the sliding guide rod assembly 1 , a plurality of the clamping grooves 43 are arranged on the edge of the guide groove 4 , and a plurality of the clamping grooves 43 are arranged along the length direction of the guide groove 4 .

[0064] A plurality of the clamping grooves 43 are disposed at the edges of the guide groove 4 on opposite sides, and the plurality of the clamping grooves 43 are disposed along the length direction of the guide groove 4 .

[0065] In this embodiment, the sliding guide rod assembly 1 includes a first guide rod 11 and a second guide rod 12, and the second guide rod 12 is sleeved on one end of the first guide rod 11;

[0066] The first guide rod 11 is provided with a first groove body 41, and the second guide rod 12 is provided with a second groove body 42. When the second guide rod 12 is sleeved on the first guide rod 11, a guide groove 4 is formed between the first groove body 41 and the second groove body 42; the first groove body 41 and the second groove body 42 are both provided with a clamping groove 43.

[0067] The first guide rod 11 and the second guide rod 12 connected to each other can extend the length of the guide groove 4, so that the rivet pin 3 has more adjustment positions, and thus the height adjustment range of the connection part with the connecting rod 2 is wider.

[0068] More preferably, the second guide rod 12 is provided with a limit screw 121, and the first guide rod 11 is provided with a plurality of limit holes 111 adapted to the limit screw 121;

[0069] A plurality of the limiting holes 111 are arranged on the first guide rod 11 along the length direction of the first slot body 41. The limiting screw 121 penetrates the limiting hole 111 on the first guide rod 11 and is locked with each other to limit the first guide rod 11 and the second guide rod 12. When the limiting screw 121 is locked with the limiting hole 111, the first guide rod 11 and the second guide rod 12 cannot move relative to each other; when the limiting screw 121 leaves the limiting hole 111, the first guide rod 11 and the second guide rod 12 can slide relative to each other.

[0070] The cooperation between the limiting screw 121 and the limiting hole 111 can adjust the relative position between the first guide rod 11 and the second guide rod 12, thereby limiting the length of the guide groove 4 and preventing the first guide rod 11 and the second guide rod 12 from sliding disorderly.

[0071] Example 5

[0072] like Figure 1-Figure 4As shown, this embodiment includes the above-mentioned lifting and lowering adjustment mechanism, which includes two connecting rods 2 hinged to each other and a sliding guide rod assembly 1, a rivet pin 3 is provided at the hinge of the two connecting rods 2, a limit pin 32 is provided on the rivet pin 3, and a connecting portion is provided at one end of the two connecting rods 2 that are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, a clamping groove 43 is provided at the edge of the guide groove 4, the rivet pin 3 is movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0073] The guide groove 4 is arranged along the length direction of the sliding guide rod assembly 1 , a plurality of the clamping grooves 43 are arranged on the edge of the guide groove 4 , and a plurality of the clamping grooves 43 are arranged along the length direction of the guide groove 4 .

[0074] A plurality of the clamping grooves 43 are disposed at the edges of the guide groove 4 on opposite sides, and the plurality of the clamping grooves 43 are disposed along the length direction of the guide groove 4 .

[0075] The sliding guide rod assembly 1 comprises a first guide rod 11 and a second guide rod 12, wherein the second guide rod 12 is sleeved on one end of the first guide rod 11;

[0076] The first guide rod 11 is provided with a first groove body 41, and the second guide rod 12 is provided with a second groove body 42. When the second guide rod 12 is sleeved on the first guide rod 11, a guide groove 4 is formed between the first groove body 41 and the second groove body 42; the first groove body 41 and the second groove body 42 are both provided with a clamping groove 43.

[0077] The second guide rod 12 is provided with a limit screw 121 , and the first guide rod 11 is provided with a plurality of limit holes 111 matched with the limit screw 121 ; the plurality of limit holes 111 are arranged on the first guide rod 11 along the length direction of the first slot body 41 .

[0078] In this embodiment, along the width direction of the second guide rod 12, sliding grooves 122 are provided at the two side edges of the second guide rod 12, and the sliding grooves 122 are adapted to the edges of the first guide rod 11; along the length direction of the second guide rod 12, a limiting block 123 is provided at one end of the second guide rod 12.

[0079] The second guide rod 12 slides with the first guide rod 11 through the slide slot 122, so as to adjust the length of the guide slot 4. The stop block 123 limits the matching position of the second guide rod 12 and the first guide rod 11.

[0080] More preferably, the second guide rod 12 has a head end and a tail end that are arranged opposite to each other, the second guide rod 12 is sleeved on the first guide rod 11 via the head end, and the limit block 123 is arranged at the tail end to limit the position of the second guide rod 12 .

[0081] Specifically, two limiting holes 111 may be provided, and the two limiting holes 111 are respectively provided at two opposite ends of the first slot body 41 .

[0082] Example 6

[0083] like Figure 1-Figure 4 As shown, this embodiment includes the above-mentioned lifting and lowering adjustment mechanism, which includes two connecting rods 2 hinged to each other and a sliding guide rod assembly 1, a rivet pin 3 is provided at the hinge of the two connecting rods 2, a limit pin 32 is provided on the rivet pin 3, and a connecting portion is provided at one end of the two connecting rods 2 that are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, a clamping groove 43 is provided at the edge of the guide groove 4, the rivet pin 3 is movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0084] The guide groove 4 is arranged along the length direction of the sliding guide rod assembly 1 , a plurality of the clamping grooves 43 are arranged on the edge of the guide groove 4 , and a plurality of the clamping grooves 43 are arranged along the length direction of the guide groove 4 .

[0085] A plurality of the clamping grooves 43 are disposed at the edges of the guide groove 4 on opposite sides, and the plurality of the clamping grooves 43 are disposed along the length direction of the guide groove 4 .

[0086] The sliding guide rod assembly 1 includes a first guide rod 11 and a second guide rod 12, and the second guide rod 12 is sleeved on one end of the first guide rod 11; a first groove body 41 is provided on the first guide rod 11, and a second groove body 42 is provided on the second guide rod 12. When the second guide rod 12 is sleeved on the first guide rod 11, a guide groove 4 is formed between the first groove body 41 and the second groove body 42; a clamping groove 43 is provided on both the first groove body 41 and the second groove body 42.

[0087] The second guide rod 12 is provided with a limit screw 121 , and the first guide rod 11 is provided with a plurality of limit holes 111 matched with the limit screw 121 ; the plurality of limit holes 111 are arranged on the first guide rod 11 along the length direction of the first slot body 41 .

[0088] Along the width direction of the second guide rod 12 , slide grooves 122 are provided at the two side edges of the second guide rod 12 , and the slide grooves 122 are adapted to the edges of the first guide rod 11 ; along the length direction of the second guide rod 12 , a limiting block 123 is provided at one end of the second guide rod 12 .

[0089] In this embodiment, a specific implementation of the rivet pin 3 is provided. Specifically, the rivet pin 3 includes a coaxially arranged torsion bar 34, a button 31, the limit pin 32 and a locking nut 35, the torsion bar 34 passes through the button 31 and is threadedly connected with the locking nut 35, the limit pin 32 is arranged between the button 31 and the locking nut 35, a spring 33 is arranged between the limit pin 32 and the locking nut 35, and one side of the button 31 abuts against the limit pin 32.

[0090] One side of the spring 33 contacts the locking nut 35, and the other side opposite to the spring 33 contacts the stop pin 32. When the clamping block 321 is clamped on a side wall of the clamping groove 43, the rivet pin 3 is confined in the guide groove 4. When the rivet pin 3 needs to be moved, the rivet pin 3 is rotated so that the positions of the clamping block 321 and the clamping groove 43 correspond to each other. At this time, the spring 33 pushes the clamping block 321 of the stop pin 32 out of the clamping groove 43, and the position of the rivet pin 3 can be adjusted as needed.

[0091] It should be noted that the torsion bar 34 of the present application penetrates the button 31 and the limit pin 32. When the button 31 is pressed, one side of the button 31 applies a force to the limit pin 32, thereby squeezing the spring 33, and the spring 33 applies a reaction force to the limit pin 32. When the limit pin 32 is pressed and turned, the block 321 of the limit pin 32 can be disengaged from the clamping groove 43.

[0092] In addition, during use, the torsion bar 34 passes through the guide groove 4, so that the two connecting rods 2 can rotate after being connected to the torsion bar 34.

[0093] Example 7

[0094] like Figure 5-Figure 7 As shown, this embodiment provides a shelf assembly, which includes stacked frames 100, a lifting and lowering adjustment mechanism as described above is arranged between two adjacent frames 100, and the connecting portion of the connecting rod 2 is connected to the frames 100.

[0095] The lifting and lowering adjustment mechanism comprises two connecting rods 2 hinged to each other and a sliding guide rod assembly 1. A rivet pin 3 is provided at the hinge of the two connecting rods 2, and a limit pin 32 is provided on the rivet pin 3. A connecting portion is provided at one end of the two connecting rods 2 which are away from each other; a guide groove 4 is provided on the sliding guide rod assembly 1, and a clamping groove 43 is provided at the edge of the guide groove 4. The rivet pin 3 can be movably arranged in the guide groove 4, and the limit pin 32 and the clamping groove 43 are clamped to each other.

[0096] The guide groove 4 is arranged along the length direction of the sliding guide rod assembly 1 , a plurality of the clamping grooves 43 are arranged on the edge of the guide groove 4 , and a plurality of the clamping grooves 43 are arranged along the length direction of the guide groove 4 .

[0097] More specifically, the frame 100 includes a frame 120 and a frame 110 disposed on the frame 120, and the frame 120 is provided with a bayonet 1201. The frame 110 can be welded from a plurality of different metal strips, and the frame 110 can also be welded and fixed to the frame 120.

[0098] The shelf assembly is placed in the refrigerator, and the number and height of the rack bodies 100 can be adjusted according to demand, which helps to fully utilize the use space of the refrigerator and reduce the mutual squeezing of items stored in the refrigerator.

[0099] A convex rib is usually provided inside the refrigerator. During use, the bayonet 1201 cooperates with the convex rib to limit the shelf assembly.

[0100] The lifting and adjusting mechanism of the present application forms a mechanical connecting rod 2 structure on the frame 100. The user can adjust the lifting and adjusting mechanism as needed to change the distance between different frames 100 to meet the storage requirements of different items.

[0101] Example 8

[0102] This embodiment provides a refrigerator, which includes the shelf assembly as described above.

[0103] More specifically, the refrigerator of the present application also includes a cabinet, a refrigeration system, a control system and accessories. The cabinet is the outer shell of the refrigerator, usually made of steel plate; the refrigeration system includes a compressor, a condenser, an evaporator, etc.; the control system is the brain of the refrigerator, responsible for controlling the operation of the refrigeration system; the accessories include door handles, lighting, etc. A refrigeration chamber is provided in the cabinet, and a shelf assembly is provided in the refrigeration chamber for placing items.

[0104] The refrigerator of the present application can fully utilize the space of the refrigerating chamber, can reduce the mutual squeezing of items during the storage process, and can reduce the damage of the items.

[0105] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0106] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0107] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A lifting and lowering adjustment mechanism, characterized in that: include: Two connecting rods (2) are hinged to each other, a rivet pin (3) is provided at the hinge of the two connecting rods (2), a limit pin (32) is provided on the rivet pin (3), and a connecting portion is provided at the ends of the two connecting rods (2) that are away from each other; A sliding guide rod assembly (1), wherein a guide groove (4) is provided on the sliding guide rod assembly (1), a clamping groove (43) is provided at the edge of the guide groove (4), the rivet pin (3) is movably arranged in the guide groove (4), and the limit pin (32) and the clamping groove (43) are clamped with each other.

2. The lifting and lowering adjustment mechanism according to claim 1, characterized in that: The guide groove (4) is arranged along the length direction of the sliding guide rod assembly (1), a plurality of the clamping grooves (43) are arranged on the edge of the guide groove (4), and a plurality of the clamping grooves (43) are arranged along the length direction of the guide groove (4).

3. The lifting and lowering adjustment mechanism according to claim 1, characterized in that: A plurality of the clamping grooves (43) are arranged at the edges of two opposite sides of the guide groove (4), and the plurality of the clamping grooves (43) are arranged along the length direction of the guide groove (4).

4. The lifting and lowering adjustment mechanism according to any one of claims 1 to 3, characterized in that: The sliding guide rod assembly (1) comprises a first guide rod (11) and a second guide rod (12), wherein the second guide rod (12) is sleeved on one end of the first guide rod (11); The first guide rod (11) is provided with a first groove body (41), and the second guide rod (12) is provided with a second groove body (42); when the second guide rod (12) is sleeved on the first guide rod (11), a guide groove (4) is formed between the first groove body (41) and the second groove body (42); and the first groove body (41) and the second groove body (42) are both provided with a clamping groove (43).

5. The lifting and lowering adjustment mechanism according to claim 4, characterized in that: The second guide rod (12) is provided with a limit screw (121), and the first guide rod (11) is provided with a plurality of limit holes (111) matched with the limit screw (121); A plurality of the limiting holes (111) are arranged on the first guide rod (11) along the length direction of the first slot body (41).

6. The lifting and lowering adjustment mechanism according to claim 4, characterized in that: Along the width direction of the second guide rod (12), sliding grooves (122) are provided at the edges of both sides of the second guide rod (12), and the sliding grooves (122) are adapted to the edges of the first guide rod (11); A limiting block (123) is provided at one end of the second guide rod (12) along the length direction of the second guide rod (12).

7. The lifting and lowering adjustment mechanism according to any one of claims 1 to 3, characterized in that: The rivet pin (3) comprises a coaxially arranged torsion bar (34), a button (31), a limit pin (32) and a locking nut (35); the torsion bar (34) passes through the button (31) and is threadedly connected with the locking nut (35); the limit pin (32) is arranged between the button (31) and the locking nut (35); a spring (33) is arranged between the limit pin (32) and the locking nut (35); and one side of the button (31) abuts against the limit pin (32).

8. A shelf assembly, characterized in that: It comprises stacked frames (100), wherein a lifting and lowering adjustment mechanism according to any one of claims 1 to 7 is arranged between two adjacent frames (100), and a connecting portion of the connecting rod (2) is connected to the frames (100).

9. The shelf assembly according to claim 8, characterized in that: The frame (100) comprises a frame (120) and a frame (110) arranged on the frame (120); a snap-on (1201) is arranged on the frame (120).

10. A refrigerator, characterized in that: Comprising a shelf assembly as claimed in claim 8 or 9.

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