Liftable drawer and refrigerator

Abstract

The invention discloses a liftable drawer and a refrigerator. The liftable drawer comprises a drawer body mounted in a refrigerator body; the supporting pieces are mounted on the two sides of the inner wall of the box body and provided with first rotating fulcrums; the fixed end of the limiting assembly is connected with the supporting piece, and the other end is telescopic; the two ends of the first rotating arm are rotationally connected with the telescopic end of the limiting assembly and the outer side face of the drawer body respectively and connected with the first rotating fulcrum with the first rotating fulcrum as the rotating center point. When the drawer body is pulled down from the top in the box body, the first rotating arm rotates around the first rotating fulcrum, and the limiting assembly is gradually changed into a compressed state from a stretched state. When the limiting assembly and the first rotating arm are matched to drive the drawer body to be pulled down, the drawer body is in a horizontal state and keeps stable in the pull-down process, and the limiting assembly is in a compressed state when the drawer body is completely opened, so that the drawer body is in a relatively static and stable state.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration, and in particular to a liftable drawer and a refrigerator. Background Art

[0002] As people's quality of life gradually improves, the trend of kitchen appliance integration is becoming increasingly obvious, and people's demand for refrigerator capacity is increasing. Because the sides and depth of refrigerators are limited by space, vertical expansion of products to increase product capacity is an objective market demand.

[0003] Although large-sized refrigerators have brought a lot of convenience to people's lives, due to the inconsistent heights of user groups, it is difficult for users with short stature to access the drawers located in the top space of the refrigerator for storing items. Drawers are also prone to fall and injure people when taking and placing heavy items. Therefore, users with short stature will not place too many items in the drawers in the top space of the refrigerator, or simply do not use the drawers in the top space of the refrigerator to prevent danger, resulting in insufficient actual storage capacity of the refrigerator and waste of resources.

[0004] Therefore, how to provide a drawer that can be smoothly raised and lowered in the top space of the refrigerator and convenient for taking and placing items is an urgent problem to be solved. Summary of the invention

[0005] The invention provides a liftable drawer and a refrigerator, which are used to solve the problem in the prior art that the drawer in the top space of the refrigerator cannot be lifted and lowered smoothly.

[0006] The technical solution of the present invention is a liftable drawer, comprising a drawer body installed in a box; and further comprising:

[0007] A pair of support members, mounted on both sides of the inner wall of the box body and provided with a first rotation fulcrum;

[0008] A limit assembly, a fixed end of which is connected to the support member and the other end of which is retractable;

[0009] A first rotating arm, both ends of which are rotatably connected to the telescopic end of the limit assembly and the outer side surface of the drawer body, and connected to the first rotating fulcrum with the first rotating fulcrum as the rotation center point;

[0010] Wherein, when the drawer body is pulled down from the top in the box body, the first rotating arm rotates around the first rotating fulcrum, and the limiting component gradually changes from a stretched state to a compressed state.

[0011] Furthermore, the limiting assembly includes a connecting sleeve, a first connecting member and a second connecting member;

[0012] An elastic body is arranged in the connecting sleeve, and two ends of the connecting sleeve are respectively sleeved with the abutting end of the first connecting member and the abutting end of the second connecting member, the fixed end of the first connecting member is connected to the upper part of the supporting member, and the telescopic end of the second connecting member is hinged to the first rotating arm;

[0013] Furthermore, the abutting end of the first connecting member and the abutting end of the second connecting member can slide in the connecting sleeve and be connected to the two ends of the elastic body respectively.

[0014] Furthermore, the abutting end of the first connector is provided with a first flange matching the connecting sleeve, and a first connector is extended outwardly from the bottom of the first flange;

[0015] The abutting end of the second connecting member is provided with a second flange matching the connecting sleeve, and a second plug-in member is extended outwardly from the bottom of the second flange;

[0016] The first flange and the second flange can both be matched and extended into the connecting sleeve and slide, and the first connector is matched and plugged with one end of the elastic body, and the second connector is matched and plugged with the other end of the elastic body.

[0017] Furthermore, the elastic body is a spring.

[0018] Furthermore, the first rotating arm includes a first connecting rod and a second connecting rod that are integrally formed, the length of the second connecting rod is much smaller than the length of the first connecting rod, and the angle between the first connecting rod and the second connecting rod is an obtuse angle;

[0019] The upper parts of both sides of the drawer body are respectively hinged to one end of the first connecting rod away from the second connecting rod, and the connection between the first connecting rod and the second connecting rod is hinged to the first rotation fulcrum; the end of the second connecting rod away from the first connecting rod is hinged to the limit assembly.

[0020] Furthermore, when the first rotating arm and the limiting assembly cooperate to drive the drawer body to rise and fully close, the angle between the first connecting rod and the bottom of the drawer body is less than 90°;

[0021] When the first rotating arm and the limiting assembly cooperate to drive the drawer body to be pulled down and fully opened, the angle between the first connecting rod and the bottom of the drawer body is 180°.

[0022] Furthermore, the drawer further comprises two second rotating arms; the lower parts of both sides of each supporting member are provided with a second rotating fulcrum;

[0023] One end of each second rotating arm is correspondingly connected to the second rotating fulcrum and takes the second rotating fulcrum as the rotation center point; the other end of each second rotating arm is respectively hinged to the lower parts of both sides of the drawer body.

[0024] Furthermore, the drawer body further comprises a push-pull assembly, and the push-pull assembly comprises a fourth connecting rod and a push-pull rod;

[0025] The other end of each of the second rotating arms is hinged to one end of the fourth connecting rod, and a push-pull rod is hinged between the other ends of the two fourth connecting rods.

[0026] Furthermore, a counterweight structure is provided at the bottom of the drawer body, and a plurality of first fixing members are provided at the bottom of the drawer body corresponding to the counterweight structure.

[0027] The present invention further provides a refrigerator, comprising a box body; the box body is provided with the liftable drawer described above.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] When the drawer body is pulled down and opened by the cooperation of the limit assembly and the first rotating arm, the limit assembly and the first rotating arm can keep the drawer body in a horizontal state and stable, and the limit assembly gradually changes from a stretched state to a compressed state when the drawer body is pulled down, so that the drawer body is in a relatively static and stable state during the pulling-down process. In this way, even if heavier items are stored in the drawer body, the limit assembly and the first rotating arm can prevent the drawer body from falling during the pulling-down process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 This is an exploded schematic diagram of the liftable drawer proposed by the present invention;

[0033] Figure 2 This is a schematic structural diagram of the liftable drawer proposed by the present invention when it is fully closed;

[0034] Figure 3 This is a schematic structural diagram of the liftable drawer proposed by the present invention when it is fully opened;

[0035] Figure 4 This is an exploded schematic diagram of the limiting assembly proposed by the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the limit assembly proposed by the present invention when it is in a compressed state;

[0037] Figure 6 This is a schematic diagram of the structure of the limit assembly proposed by the present invention when it is in a stretched state;

[0038] Figure 7 This is a schematic diagram of the structure of the support member proposed by the present invention;

[0039] Figure 8 A bottom view of the drawer body provided by the present invention;

[0040] Fig. 9 A schematic diagram of the structure of the refrigerator proposed by the present invention;

[0041] Fig.10 Another structural schematic diagram of the refrigerator proposed by the present invention.

[0042] Reference numerals:

[0043] 1. Drawer body;

[0044] 11. a first fixing member; 12. a yielding portion;

[0045] 2. Support parts;

[0046] 21. second fixing member; 22. opening;

[0047] 3. Limiting components;

[0048] 31. Connecting sleeve; 32. First connecting member; 321. First flange; 322. First plug-in connector; 33. Second connecting member; 331. Second flange; 332. Second plug-in connector; 34. Elastic body;

[0049] 4. The first rotating arm;

[0050] 41. first connecting rod; 42. second connecting rod;

[0051] 5. Second rotating arm;

[0052] 51. Third connecting rod;

[0053] 6. Push-pull components;

[0054] 61. fourth connecting rod; 62. push-pull rod;

[0055] 7. Counterweight structure;

[0056] 100. Cabinet. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described features. In addition, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0058] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0059] Example 1

[0060] See attached Figure 1 and 9 The present invention provides a liftable drawer, comprising a drawer body 1 installed in the top space of a box body 100; and further comprising:

[0061] A pair of support members 2, mounted on both sides of the inner wall of the box body 100, and respectively provided with a first rotation fulcrum;

[0062] A limiter assembly 3, a fixed end of which is connected to the support member 2 and the other end of which is retractable;

[0063] The first rotating arm 4 has two ends which are respectively rotatably connected to the telescopic end of the limit assembly 3 and the outer side surface of the drawer body 1, and are connected to the first rotating fulcrum with the first rotating fulcrum as the rotation center point;

[0064] Among them, when the drawer body 1 is pulled down from the top of the box body 100, the first rotating arm 4 rotates around the first rotating fulcrum, and the limiting assembly 3 gradually changes from a stretched state to a compressed state; when the drawer body 1 is lifted, the first rotating arm 4 rotates around the first rotating fulcrum, and the limiting assembly 3 gradually changes from a compressed state to a stretched state.

[0065] It should be noted that the housing 100 in this embodiment refers to a refrigerator housing, that is, the liftable drawer proposed in this embodiment is located in the top space inside the refrigerator.

[0066] See attached Figure 2-3 , and when the drawer body 1 is fully closed, the drawer body 1 is located above the support member 2; when the drawer body 1 is fully opened, the drawer body 1 is located between the two support members 2

[0067] In this way, when the limit assembly 3 and the first rotating arm 4 cooperate to drive the drawer body 1 to be pulled down and opened, the limit assembly 3 and the first rotating arm 4 cooperate to keep the drawer body 1 in a horizontal state and stable, and the limit assembly 3 gradually changes from a stretched state to a compressed state when the drawer body 1 is pulled down, so that the drawer body 1 is in a relatively static and stable state. In this way, even if heavier items are stored in the drawer body 1, the limit assembly 3 and the first rotating arm 4 can prevent the drawer body 1 from falling during the pulling process.

[0068] When the drawer body 1 is pulled down to a specified height (equivalent to the drawer body 1 being fully opened), users with shorter heights can also easily take and place items stored in the top space of the box body 100, and reasonably utilize the actual storage volume of the top space of the box body 100. At the same time, when the drawer body 1 is fully opened, the limit assembly 3 is in a fully compressed state, and the drawer body 1 cannot continue to descend. Even if heavy items are stored in the drawer body 1, the limit assembly 3 in a fully compressed state can prevent the drawer body 1 from continuing to descend or even falling after it is fully opened.

[0069] In order to ensure the limiting function of the limiting component 3, refer to the attached Figure 5-6 , the limiting assembly 3 includes a connecting sleeve 31, a first connecting member 32 and a second connecting member 33;

[0070] An elastic body 34 is provided in the connecting sleeve 31, and the two ends of the connecting sleeve 31 are respectively sleeved with the abutting end of the first connecting member 32 and the abutting end of the second connecting member 33, the fixed end of the first connecting member 32 is fixedly connected to the upper part of the supporting member 2, and the telescopic end of the second connecting member 33 is hinged to the first rotating arm 4;

[0071] Furthermore, the abutting end of the first connecting member 32 and the abutting end of the second connecting member 33 can slide in the connecting sleeve 31 and be connected to the two ends of the elastic body 34 respectively.

[0072] In this way, when the drawer body 1 is completely closed, the first connecting member 32 and the second connecting member 33 will move away from each other and drive the elastic body 34 to stretch.

[0073] When the drawer body 1 is pulled down to open, the first connecting member 32 and the second connecting member 33 will be relatively close to each other, and the elastic body 34 will be compressed first until the opposite ends of the first connecting member 32 and the second connecting member 33 abut against each other to form a limit, that is, the limit component 3 is in a fully compressed state at this time, so that the drawer body 1 cannot continue to descend after being fully opened, and the drawer body 1 is in a relatively static and stable state at this time, so that even if heavier items are stored in the drawer body 1, the limit component 3 can prevent the drawer body 1 from continuing to descend or even falling after being fully opened; at the same time, this can also protect the elastic body 34 and avoid the elastic body 34 being in a stretched state for a long time to cause it to break and fail.

[0074] It should be noted that when the opposite ends of the first connecting member 32 and the second connecting member 33 compress the elastic body 34 and abut against each other, the elastic body 34 is still at its maximum safe compression length, that is, the elastic body 34 will not undergo inelastic deformation at this time.

[0075] Specifically, refer to the attached Figure 4 The abutting end of the first connecting member 32 is provided with a first flange 321 matching the connecting sleeve 31, and a first plug-in member 322 is extended outward from the bottom of the first flange 321;

[0076] The abutting end of the second connecting member 33 is provided with a second flange 331 matching the connecting sleeve 31, and a second plug-in member 332 is extended outward from the bottom of the second flange 331;

[0077] The first flange 321 and the second flange 331 can both be matched and inserted into the connecting sleeve 31 and slide, and the first connector 322 is matched and plugged with one end of the elastic body 34 , and the second connector 332 is matched and plugged with the other end of the elastic body 34 .

[0078] In this way, when the drawer body 1 is fully closed, the first connector 32 and the second connector 33 will be relatively far away, and the elastic body 34 will be stretched. When the drawer body 1 is pulled down to open, the first connector 32 and the second connector 33 will approach each other, that is, the first connector 322 and the second connector 332 will compress the elastic body 34 until they abut against each other, that is, the limit assembly 3 is in a fully compressed state at this time, so that the drawer body 1 cannot continue to descend after being fully opened, and the drawer body 1 is in a relatively static and stable state at this time, so that even if there are heavy items stored in the drawer body 1, the limit assembly 3 can prevent the drawer body 1 from continuing to descend or even falling after being fully opened; at the same time, it can also protect the elastic body 34, avoiding the elastic body 34 from being in a stretched state for a long time to cause it to break and fail; at the same time, it can also avoid the storage space of the box 100 located below the drawer body 1, and prevent the items stored in the storage space of the box 100 located below the drawer body 1 from being squeezed.

[0079] It should be noted that the first connector 322 and the second connector 332 abut against each other, and at this time the compression length of the elastic body 34 is the sum of the lengths of the first connector 322 and the second connector 332 , which is less than the maximum safe compression length of the elastic body 34 .

[0080] In order to prevent the first flange 321 and the second flange 331 from falling out of the connecting sleeve 31, refer to the attached Figure 4 Stoppers 311 are also provided at both ends of the connecting sleeve 31 to limit the first flange 321 and the second flange 331 to ensure that the limiting function of the limiting assembly 3 is not affected.

[0081] The elastic body 34 in this embodiment is preferably a spring. Of course, the elastic body 34 can also be other objects with elasticity, which is not limited here.

[0082] In this way, when the drawer body 1 is pulled down to open, the first connecting member 32 and the second connecting member 33 will approach each other, that is, the first connector 322 and the second connector 332 will compress the spring until they abut against each other, that is, the limit assembly 3 is in a fully compressed state at this time, so that the drawer body 1 cannot continue to descend after being fully opened, and the drawer body 1 is in a relatively static and stable state at this time, so that even if heavier items are stored in the drawer body 1, the limit assembly 3 can prevent the drawer body 1 from continuing to descend or even falling after being fully opened; at the same time, it can also protect the elastomer 34, avoiding the elastomer 34 from being in a stretched state for a long time to cause it to break and fail; at the same time, it can also avoid the storage space of the box 100 located below the drawer body 1, and prevent squeezing of items stored in the storage space of the box 100 located below the drawer body 1.

[0083] In order to ensure that the drawer body 1 can be stably lifted and lowered, refer to the attached Figure 1 , this embodiment proposes a structure of the first rotating arm 4:

[0084] The first rotating arm 4 includes a first connecting rod 41 and a second connecting rod 42 which are integrally formed. The length of the second connecting rod 42 is much smaller than that of the first connecting rod 41, and the angle between the first connecting rod 41 and the second connecting rod 42 is an obtuse angle.

[0085] The middle parts of the upper parts of both sides of the drawer body 1 are respectively hinged to the end of the first connecting rod 41 away from the second connecting rod 42, and the connection between the first connecting rod 41 and the second connecting rod 42 is hinged to the first rotation fulcrum; the end of the second connecting rod 42 away from the first connecting rod 41 is hinged to the limit assembly 3.

[0086] To further ensure that the drawer body 1 can be stably lifted and lowered, refer to the attached Figure 1 , the drawer further comprises two second rotating arms 5, each of the second rotating arms 5 comprises a third connecting rod 51; the lower parts of both sides of each of the supporting members 2 are provided with second rotating fulcrums;

[0087] One end of each second rotating arm 5 is correspondingly connected to the second rotating fulcrum and takes the second rotating fulcrum as the rotation center point; the other end of each second rotating arm 5 is respectively hinged to the lower part of both sides of the drawer body 1.

[0088] It should be noted that, refer to the attached Figure 3 The upper parts of both sides of each support member 2 and the side close to the inside of the box body 100 along the X-axis direction are respectively fixedly connected to the fixed ends of the first connecting member 32; the middle parts of both sides of each support member 2 are respectively provided with first rotation fulcrums; the lower parts of both sides of each support member 2 and the side away from the inside of the box body 100 along the X-axis direction are respectively provided with second rotation fulcrums.

[0089] In this way, through the hinged positions between the limit assembly 3, the first rotating arm 4 and the second rotating arm 5 and the drawer body 1, the force on the drawer body 1 can be more uniform, and the drawer body 1 can be more stable during the lifting process. In addition, through the limit assembly 3, the first rotating arm 4 and the second rotating arm 5, the user can save more effort in the process of opening or closing the drawer body 1, and the drawer body 1 will not be difficult to close due to the heavy items stored in the drawer body 1.

[0090] Among them, refer to the attached Figure 7The support member 2 in this embodiment is a hollow rectangular plate, and a plurality of second fixing members 21 are provided inside the support member 2, and each second fixing member 21 is matched with a bolt, so that each bolt can match and pass through the corresponding second fixing member 21 and then connect with the inner wall of the box body 100, thereby fixing the support member 2 on the inner wall of the box body 100. And the second fixing member 21 will not hinder the movement of the limit assembly 3, the first rotating arm 4 and the second rotating arm 5 when the drawer body 1 is raised and lowered. And the top of the support member 2 and the side facing outward are both provided with a communicating opening 22, and the opening 22 facilitates the extension and retraction of the first rotating arm 4 and the second rotating arm 5 when the drawer body 1 is raised and lowered; and the support member 2 can also cover part of the first rotating arm 4 and the second rotating arm 5, thereby improving the aesthetics of the liftable drawer.

[0091] In order to ensure that the drawer body 1 is in a relatively static and stable state when the drawer body 1 is fully opened or fully closed, Figure 8 A counterweight structure 7 is also provided at the bottom of the drawer body 1 , and a plurality of first fixing members 11 are provided at the bottom of the drawer body 1 corresponding to the counterweight structure 7 .

[0092] It should be noted that the counterweight structure 7 of the present embodiment is preferably a parallelogram-shaped counterweight block, and a first fixing member 11 is provided at the four corners of the bottom of the drawer body 1 corresponding to the counterweight structure 7, and then the four corners of the counterweight structure 7 are bolted, welded or other connected to the corresponding first fixing members 11, which are not limited here.

[0093] Among them, refer to the attached Figure 2-3 , when the first rotating arm 4 and the limiting assembly 3 cooperate to drive the drawer body 1 to rise and fully close, the angle between the first connecting rod 41 and the bottom of the drawer body 1 is less than 90°;

[0094] When the first rotating arm 4 and the limiting assembly 3 cooperate to drive the drawer body 1 to be pulled down and fully opened, the angle between the first connecting rod 41 and the bottom of the drawer body 1 is 180°.

[0095] In this way, when the drawer body 1 is fully closed, the angle between the first connecting rod 41 and the bottom of the drawer body 1 is less than 90°, and the counterweight structure 7 at the bottom of the drawer body 1 can make the drawer body 1 better in a relatively static and stable state; and when the drawer body 1 is opened, the angle between the first connecting rod 41 and the bottom of the drawer body 1 will be greater than 90°. At this time, the drawer body 1 will slowly descend due to its own weight, the weight of the items stored in it and the counterweight structure 7, until the angle between the first connecting rod 41 and the bottom of the drawer body 1 forms 180°, at which time the drawer body 1 will stop descending, that is, the drawer body 1 is fully opened (that is, at this time the drawer body 1 descends to the preset static equilibrium position), so that the drawer body 1 can be automatically opened without the user having to apply external force all the time, which greatly improves the user experience.

[0096] Of course, during the lifting and lowering process of the drawer body 1 , the user can hold or pull the drawer body 1 , and then exerting force can accelerate the process of pulling down or lifting the drawer body 1 .

[0097] In order to facilitate the user to better lift the drawer body 1, refer to the attached Figure 1 , the drawer body 1 further includes a push-pull assembly 6, and the push-pull assembly 6 includes a fourth connecting rod 61 and a push-pull rod 62;

[0098] The other end of each of the third connecting rods 51 is hinged to one end of the fourth connecting rod 61 , and a push-pull rod 62 is hinged between the other ends of the two fourth connecting rods 61 .

[0099] In this way, when the user needs to open or close the drawer body 1, he only needs to hold the push-pull rod 62, and then pull it downward or push it upward to open or close the drawer body 1 relative to the box body 100.

[0100] Among them, refer to the attached Figure 2 A yielding portion 12 is further provided at the bottom of the drawer body 1 on the side away from the push-pull rod 62, so that when the drawer body 1 is lowered, it can further avoid squeezing the items stored in the storage space of the box 100 below the drawer body 1.

[0101] Example 2

[0102] Based on the same inventive concept, refer to the attached Figure 9-10 The present invention further provides a refrigerator, which includes a box body 100; the top space inside the box body 100 is provided with the above-mentioned liftable drawer.

[0103] Among them, the user first opens the refrigerator, then holds the push-pull rod 62 and pulls it downward, and then the limit assembly 3, the first rotating arm 4 and the second rotating arm 5 cooperate to drive the drawer body 1 to rise and fall. The limit assembly 3, the first rotating arm 4 and the second rotating arm 5 cooperate to make the drawer body 1 always in a horizontal state and remain stable, and the limit assembly 3 is in a compressed state when the drawer body 1 is pulled down to a specified height (equivalent to the drawer body 1 being fully opened), so that the drawer body 1 is in a relatively static and stable state, preventing the drawer body 1 from continuing to descend. In this way, even if heavier items are stored in the drawer body 1, the limit assembly 3 can prevent the drawer body 1 from continuing to descend or even falling after it is fully opened.

[0104] The use process of the refrigerator proposed in this embodiment:

[0105] The user first opens the refrigerator, then holds the push-pull rod 62 and pulls it downward. At this time, the drawer body 1 slowly descends due to its own weight under the cooperation of the limit assembly 3, the first rotating arm 4 and the second rotating arm 5 until it is pulled down to the preset static equilibrium position. At this time, if the user wants to speed up the descending speed of the drawer body 1, the user can hold the push-pull rod 62 and continue to pull it down with force. During the pulling-down process of the drawer body 1, the opposite ends of the first connecting member 32 and the second connecting member 33 will gradually compress the elastic body 34 until they abut against each other, and the drawer body 1 is always in a horizontal state and remains stable until the drawer body 1 is fully opened (that is, the drawer body 1 is pulled down to the preset static equilibrium position at this time), and at this time, due to the weight of the drawer body 1 itself and the weight of the stored items and the total weight of the counterweight structure 7, the drawer body 1 can be in a relatively static and stable state when fully opened, preventing the drawer body 1 from continuing to slide or fall outward; at the same time, this can also protect the elastic body 34, avoiding the elastic body 34 from being in a stretched state for a long time to cause it to break and fail; at the same time, this can also avoid the storage space of the box 100 located below the drawer body 1, and prevent the items stored in the storage space of the box 100 located below the drawer body 1 from being squeezed.

[0106] The more items are stored in the drawer body 1 and the heavier the weight is, the lower the preset static balance position will be after the drawer body 1 is opened and lowered. When the drawer body 1 is opened, in the absence of external force, when the weight of the drawer body 1 and the total weight of the stored items reach the set maximum load-bearing capacity, the preset static balance position will reach the lowest value.

[0107] When the user needs to close the drawer body 1, the user needs to hold the push-pull rod 62 and continue to push upward with force, and then the limit assembly 3, the first rotating arm 4 and the second rotating arm 5 cooperate with each other to lift the drawer body 1 to its original position, and when the drawer body 1 is fully closed, the first connecting member 32 and the second connecting member 33 will move away from each other, and the angle between the first connecting rod 41 and the bottom of the drawer body 1 is less than 90°. At the same time, due to the weight of the drawer body 1 itself, combined with the weight of the stored items and the total weight of the counterweight structure 7, the drawer body 1 can be in a relatively static and stable state when it is fully closed, preventing the drawer body 1 from sliding or falling outward.

[0108] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A liftable drawer, comprising a drawer body (1) installed in a box (100); characterized in that: Also includes: A pair of support members (2) are mounted on both sides of the inner wall of the box body (100) and are provided with a first rotation fulcrum; A limit assembly (3), the fixed end of which is connected to the support member (2) and the other end of which is retractable; A first rotating arm (4), both ends of which are rotatably connected to the telescopic end of the limit assembly (3) and the outer side surface of the drawer body (1), and connected to the first rotating fulcrum with the first rotating fulcrum as the rotation center point; When the drawer body (1) is pulled down from the top of the box body (100), the first rotating arm (4) rotates around the first rotating fulcrum, and the limiting component (3) gradually changes from a stretched state to a compressed state.

2. The liftable drawer according to claim 1, characterized in that: The limiting assembly (3) comprises a connecting sleeve (31), a first connecting piece (32) and a second connecting piece (33); An elastic body (34) is provided in the connecting sleeve (31), and two ends of the connecting sleeve (31) are respectively sleeved with an abutting end of the first connecting member (32) and an abutting end of the second connecting member (33), the fixed end of the first connecting member (32) is connected to the upper part of the supporting member (2), and the telescopic end of the second connecting member (33) is hinged to the first rotating arm (4); Furthermore, the abutting end of the first connecting member (32) and the abutting end of the second connecting member (33) can slide in the connecting sleeve (31) and are respectively connected to two ends of the elastic body (34).

3. The liftable drawer according to claim 2, characterized in that: The abutting end of the first connecting piece (32) is provided with a first flange (321) matching the connecting sleeve (31), and a first plug-in piece (322) is extended outward from the bottom of the first flange (321); The abutting end of the second connecting piece (33) is provided with a second flange (331) matching the connecting sleeve (31), and a second plug-in piece (332) is extended outward from the bottom of the second flange (331); The first flange (321) and the second flange (331) can both be matched and inserted into the connecting sleeve (31) and slide, and the first connector (322) is matched and plugged with one end of the elastic body (34), and the second connector (332) is matched and plugged with the other end of the elastic body (34).

4. The liftable drawer according to claim 2, characterized in that: The elastic body (34) is a spring.

5. The liftable drawer according to claim 1, characterized in that: The first rotating arm (4) comprises a first connecting rod (41) and a second connecting rod (42) which are integrally formed, the length of the second connecting rod (42) being smaller than the length of the first connecting rod (41), and the angle between the first connecting rod (41) and the second connecting rod (42) being an obtuse angle; The upper parts of both sides of the drawer body (1) are respectively hinged to one end of the first connecting rod (41) away from the second connecting rod (42); the connection between the first connecting rod (41) and the second connecting rod (42) is hinged to the first rotation fulcrum; and one end of the second connecting rod (42) away from the first connecting rod (41) is hinged to the limit assembly (3).

6. The liftable drawer according to claim 5, characterized in that: When the first rotating arm (4) and the limiting assembly (3) cooperate to drive the drawer body (1) to rise and fully close, the angle between the first connecting rod (41) and the bottom of the drawer body (1) is less than 90°; When the first rotating arm (4) and the limiting assembly (3) cooperate to drive the drawer body (1) to be pulled down and fully opened, the angle between the first connecting rod (41) and the bottom of the drawer body (1) is 180°.

7. The liftable drawer according to claim 1, characterized in that: The drawer further comprises two second rotating arms (5); a second rotating fulcrum is provided at the lower part of both sides of each support member (2); One end of each second rotating arm (5) is correspondingly connected to the second rotating fulcrum and takes the second rotating fulcrum as the rotation center point; the other end of each second rotating arm (5) is respectively hinged to the lower parts of both sides of the drawer body (1).

8. The liftable drawer according to claim 7, characterized in that: The drawer body (1) further comprises a push-pull assembly (6), wherein the push-pull assembly (6) comprises a fourth connecting rod (61) and a push-pull rod (62); The other end of each second rotating arm (5) is hinged to one end of the fourth connecting rod (61), and a push-pull rod (62) is hinged between the other ends of the two fourth connecting rods (61).

9. The liftable drawer according to claim 1, characterized in that: A counterweight structure (7) is also provided at the bottom of the drawer body (1), and a plurality of first fixing members (11) are provided at the bottom of the drawer body (1) corresponding to the counterweight structure (7).

10. A refrigerator, comprising a box body (100); characterized in that: The box body (100) is provided with a liftable drawer as described in any one of claims 1 to 9.

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