Refrigerator and drawer assembly thereof

Abstract

The application provides a refrigerator and a drawer assembly thereof, which comprises a bracket, a drawer and a cover. The bracket has two opposite vertical plates. The drawer is slidingly connected between the two vertical plates. The cover is buckled on the drawer to seal the top opening of the drawer. Pre-tightening structures are arranged between the two sides of the cover and the vertical plates. The pre-tightening structures comprise a pre-tightening rib and a pre-tightening wheel. The pre-tightening rib is fixed to the side wall of the cover and extends from front to back and from top to bottom along the longitudinal direction of the cover. The pre-tightening wheel is installed to the inner side of the vertical plate and can rotate around an axis parallel to the transverse direction of the cover. During the process of pushing the drawer into the bracket, the pre-tightening rib gradually moves below the pre-tightening wheel with the cover so that the pre-tightening wheel elastically holds the pre-tightening rib. The advantage of the application is that the drawer is relatively smooth during the process of pushing and pulling, and the cover can be pressed on the drawer when the drawer is closed to ensure the sealing effect of the drawer.

Description

Technical Field

[0001] This invention relates to the field of refrigeration and freezing technology, and in particular to a refrigerator and its drawer assembly. Background Technology

[0002] Currently, most refrigerators on the market seal their drawers by having a sealing cover suspended above the drawer. The drawer is sealed by the weight of the sealing cover and the sealing strip. However, installation errors often occur during actual production, which cannot guarantee the sealing effect. Sometimes, because the sealing strip fits the drawer too tightly, the drawer is particularly difficult to pull out, resulting in a poor user experience. Summary of the Invention

[0003] One objective of the first aspect of this invention is to ensure the drawer's sealing performance by having the top cover press against the drawer when the drawer is closed.

[0004] A further objective of the first aspect of the invention is to improve the smoothness of the drawer during the pushing and pulling process.

[0005] The second aspect of the present invention is to provide a refrigerator.

[0006] Specifically, according to a first aspect of the present invention, the present invention provides a drawer assembly for a refrigerator, comprising:

[0007] The support has two opposing upright plates;

[0008] The drawer slides between the two uprights; and

[0009] The top cover, which snaps onto the drawer, is used to seal the top opening of the drawer;

[0010] The top cover has a pre-tightening structure between its two sides and the uprights. The pre-tightening structure includes a pre-tightening rib and a pre-tightening wheel. The pre-tightening rib is fixed to the side wall of the top cover and extends obliquely from front to back and from top to bottom along the longitudinal direction of the top cover. The pre-tightening wheel is installed on the inner side of the uprights and can rotate around an axis parallel to the transverse direction of the top cover. It is configured such that when the drawer is pushed into the bracket, the pre-tightening rib gradually moves with the top cover to the bottom of the pre-tightening wheel so that the pre-tightening wheel can elastically press it.

[0011] Optionally, the pretensioner includes a fixed section and an elastic section that are smoothly connected from back to front. The fixed section is fixedly connected to the side wall of the top cover on one side adjacent to the side wall of the top cover, and the elastic section is spaced apart from the side wall of the top cover on one side adjacent to the side wall of the top cover.

[0012] Optionally, the inner sides of the two side walls and the inner side of the rear wall of the top cover are formed with first sealing ribs extending toward the interior of the top cover, and the outer sides of the two side walls and the outer side of the rear wall of the drawer are formed with second sealing ribs extending toward the exterior of the drawer. When the top cover is fastened onto the drawer, the first sealing ribs press against the second sealing ribs; and

[0013] The top and side walls of the lid form an opening at the front end. The front end of the drawer has a door. When the lid is fastened onto the drawer, the front ends of the top and side walls of the lid abut against the inside of the door.

[0014] Optionally, a first sealing strip is provided on the lower surface of the first sealing rib or the upper surface of the second sealing rib;

[0015] A second sealing strip is provided at the front end of the cover or on the inside of the door.

[0016] Optionally, both uprights have protrusions on their inner sides that extend toward the drawer. The protrusions extend along the front-back direction of the uprights, and the two side walls of the top cover are supported on the protrusions on their respective sides.

[0017] Optionally, the bottom of both sides of the top cover is provided with feet at the front and rear ends, and the bottom of the feet has a smooth arc surface.

[0018] Optionally, the bottom of the side wall of the top cover is provided with a relief opening extending along its length, and a stop block is provided on the platform of the boss, at least a portion of the stop block extending into the relief opening, configured such that, as the drawer is pulled out of the bracket, the opening edge of the rear end of the relief opening gradually abuts against the stop block.

[0019] Optionally, the upper edges of the two side walls of the drawer are formed with slides, and the inner sides of the two side walls of the top cover are equipped with pulleys, with the two pulleys slidably supported on the two slides respectively.

[0020] Optionally, the pulley is located near the front end of the top cover, and the slide rail includes a reset section, a lifting section, and a horizontal section that are smoothly connected from front to back. The pulley and the slide rail are configured such that when the drawer is pulled forward after the top cover is stopped by the stop block, the pulley moves from the reset section of the slide rail across the lifting section to the horizontal section, causing the front end of the top cover to tilt upward.

[0021] According to a second aspect of the present invention, a refrigerator is provided, including a cabinet having a storage compartment therein, wherein any of the drawer assemblies described above are provided in the storage compartment.

[0022] The refrigerator and its drawer assembly of this invention allow for easy access to food by pulling the drawer and top cover out of the support frame and lifting the top cover when the drawer needs to be opened. When the drawer needs to be closed, the drawer and top cover can be pushed into the support frame. During this process, the pre-tensioning ribs on both sides of the top cover gradually move to below the pre-tensioning rollers and are elastically pressed against the drawer by the rollers. This prevents gaps between the top cover and the drawer due to loose fit, effectively ensuring the drawer's sealing performance.

[0023] Furthermore, in the refrigerator and its drawer assembly of the present invention, the pulley is located near the front end of the top cover, and the slide rail includes a reset section, a lifting section and a horizontal section smoothly connected from front to back. The pulley and the slide rail are configured such that when the drawer is pulled forward after the top cover is stopped by the stop block, the pulley passes from the reset section of the slide rail to the horizontal section, causing the front end of the top cover to tilt upward, the first sealing rib and the second sealing rib to separate, and the relative sliding between the drawer and the top cover is smoother, thus improving the smoothness of the drawer when it is pushed and pulled.

[0024] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structure of a refrigerator according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of a drawer assembly according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the installation structure of the drawer, top cover and bracket according to an embodiment of the present invention;

[0029] Figure 4 yes Figure 3 Enlarged view of section A.

[0030] Figure 5 This is a schematic diagram of the structure of a drawer according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the top cover according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the internal structure of the top cover when viewed from below.

[0033] Figure 8 This is a cross-sectional view of a drawer assembly according to an embodiment of the present invention;

[0034] Figure 9 This is a cross-sectional view of a drawer assembly according to another embodiment of the present invention;

[0035] Figure 10 This is a cross-sectional view of a drawer assembly according to yet another embodiment of the present invention. Detailed Implementation

[0036] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0037] The present invention provides a drawer assembly 200 for a refrigerator 10 and a refrigerator 10 including the drawer assembly 200.

[0038] Reference Figure 1 Refrigerator 10 generally includes a cabinet 100, within which one or more storage compartments 110 are formed. The storage compartments 110 can be configured as refrigerator compartments, freezer compartments, variable temperature compartments, etc., according to the cooling temperature. Specifically, the number, function, and layout of the storage compartments 110 can be configured according to actual needs.

[0039] Reference Figures 2 to 7 The storage compartment 110 is provided with a drawer assembly 200, which may include a bracket 210, a drawer 220 and a top cover 230.

[0040] The bracket 210 can be constructed as a U-shaped structure, which includes a base plate 211 and upright plates 212 connected to the two lateral ends of the base plate 211. Each upright plate 212 can be fixed to the inner wall of the storage compartment 110 on its respective side by fasteners.

[0041] Drawer 220 has an open top cavity structure for storing vegetables, fruits and other food items. Drawer 220 has inner slide rails on both sides and outer slide rails on the inner side of the uprights 212. Drawer 220 is slidably connected between the two uprights 212 through the cooperation of the inner and outer slide rails.

[0042] The top cover 230 is fastened to the drawer 220 to seal the top opening of the drawer 220, preventing moisture inside the drawer 220 from escaping to the outside space, ensuring the freshness of the ingredients and extending their shelf life.

[0043] In this embodiment, the refrigerator 10 has a refrigerator compartment and a freezer compartment arranged vertically, and the drawer assembly 200 is located in the freezer compartment. To facilitate the access to food, the size of the drawer 220 is made smaller, so that two drawers 220 can be arranged side by side on the support 210, and the aforementioned upright plate 212 is also provided between the two drawers 220. A branched air supply device 300 is provided on the back side of the refrigerator 10, which can independently supply cooling airflow to the refrigerator compartment, the freezer compartment, and the drawers 220. For clarity, the following description will take the drawer 220 and its top cover 230 located on the left side of the support 210 as an example.

[0044] Pre-tightening structures are provided between the two sides of the top cover 230 and the upright plate 212. The pre-tightening structures include pre-tightening ribs 240 and pre-tightening wheels 250. The pre-tightening ribs 240 are fixed to the side wall of the top cover 230 and extend obliquely from front to back and from top to bottom along the longitudinal direction of the top cover 230. The pre-tightening wheels 250 are installed on the inner side of the upright plate 212 and can rotate around an axis parallel to the transverse direction of the top cover 230. They are configured such that when the drawer 220 is pushed into the bracket 210, the pre-tightening ribs 240 gradually move with the top cover 230 to the bottom of the pre-tightening wheels 250 so that the pre-tightening wheels 250 elastically press them.

[0045] In this embodiment of the invention, the drawer assembly 200 allows the drawer 220 and its top cover 230 to be pulled out of the support 210 when the drawer 220 needs to be opened. The top cover 230 is then lifted to open the top opening of the drawer 220 for storing and retrieving food. When the drawer 220 needs to be closed, the drawer 220 and its top cover 230 are pushed into the support 210. During this pushing process, the pre-tensioning ribs 240 on both sides of the top cover 230 gradually move to below the pre-tensioning rollers 250. The pre-tensioning rollers 250 elastically press the top cover 230 against the drawer 220, preventing gaps between the top cover 230 and the drawer 220 due to loose fastening, thus effectively ensuring the sealing effect of the drawer 220.

[0046] The pre-tightening rib 240 can be set at the middle position near the side wall of the top cover 230. Correspondingly, the pre-tightening wheel 250 is installed at the middle position near the upright plate 212. In this way, when the drawer 220 and the top cover 230 are fully pushed into the bracket 210, the pre-tightening wheels 250 on both sides of the top cover 230 are elastically pressed against the pre-tightening rib 240, so that the top cover 230 can be more stably fastened to the drawer 220.

[0047] The pretensioning rib 240 includes a fixed section 241 and an elastic section 242 smoothly connected from back to front. The fixed section 241 is fixedly connected to the side wall of the upper cover 230 on one side adjacent to it, while the elastic section 242 is spaced apart from the side wall of the upper cover 230 on the other side adjacent to it. By designing the length and position of the fixed section 241 and the elastic section 242, the connection point between them can be used as the entry point of the pretensioning wheel 250. During the process of pushing the drawer 220 and the upper cover 230 as a whole into the bracket 210, the pretensioning wheel 250 gradually presses the elastic section 242 from the entry point. The elastic section 242 has good elastic deformation capability and can quickly recover its deformation after being released from the pressure of the pretensioning wheel 250, enabling long-term use.

[0048] The fixed section 241 on the side away from the top cover 230, the elastic section 242 on the side away from the top cover 230, and the elastic section 242 on the side adjacent to the top cover 230 are all provided with upward-curving flanges. The flanges can be used to guide and limit the pre-tightening wheel 250, while ensuring that the top cover 230 is stable and does not wobble when it is fastened to the drawer 220.

[0049] The inner sides of the two side walls and the inner side of the rear wall of the top cover 230 are formed with first sealing ribs 231 extending toward the interior of the top cover 230. The outer sides of the two side walls and the outer side of the rear wall of the drawer 220 are formed with second sealing ribs 221 extending toward the exterior of the drawer 220. When the top cover 230 is fastened onto the drawer 220, the first sealing ribs 231 are pressed against the second sealing ribs 221. Furthermore, the top wall and the two side walls of the top cover 230 form an opening at the front end of the top cover 230. The front end of the drawer 220 is provided with a door. When the top cover 230 is fastened onto the drawer 220, the front ends of the top wall and the front ends of the two side walls of the top cover 230 abut against the inner side of the door.

[0050] Furthermore, a first sealing strip 232 is provided on the lower surface of the first sealing rib 231 or the upper surface of the second sealing rib 221, and a second sealing strip 233 is provided on the front end of the cover 230 or the inner side of the door. In this embodiment, the first sealing strip 232 is bonded and fixed to the lower surface of the first sealing rib 231, and the second sealing strip 233 is bonded and fixed to the front end of the top wall of the cover 230. When the cover 230 is fully pushed into the bracket 210 along with the drawer 220, the first sealing rib 231 is pressed against the second sealing rib 221, causing the first sealing strip 232 to be deformed under pressure, thereby sealing the gaps on both sides and the rear side of the drawer 220. The front end of the cover 230 is pressed against the inner side of the drawer 220 door, causing the second sealing strip 233 to be deformed under pressure, thereby sealing the gap at the front end of the drawer 220, achieving a complete seal of the drawer 220.

[0051] Both uprights 212 have protrusions 213 on their inner sides that face the drawer 220. These protrusions 213 extend along the front-rear direction of the uprights 212, and the two side walls of the top cover 230 are supported on their respective protrusions 213. Since the top cover 230 is pulled out along with the drawer 220 via the support 210, it needs to be pushed backward to expose the top opening of the drawer 220 when taking or placing food. The protrusions 213 support the side walls of the top cover 230, preventing it from falling off the back of the drawer 220 during backward movement.

[0052] Both ends of the bottom of the two side walls of the top cover 230 are provided with feet 234, and the bottom of the feet 234 has a smooth arc surface. The feet 234 can be made of a sound-absorbing and wear-resistant material. On the one hand, the feet 234 can reduce the friction between the side walls of the top cover 230 and the boss 213, reducing the noise generated when the top cover 230 is moved backward. On the other hand, the feet 234 can share the load with the second sealing rib 221, which can prevent the second sealing rib 221 from deforming due to insufficient structural strength when the pre-tensioning wheel 250 elastically presses the pre-tensioning rib 240, thereby affecting the sealing effect of the drawer 220.

[0053] The bottom of the side wall of the top cover 230 has a clearance opening 235 extending along its length. A stop block 214 is provided on the platform of the boss 213. At least a portion of the stop block 214 extends into the clearance opening 235, configured such that when the drawer 220 is pulled out of the support 210, the opening edge of the rear end of the clearance opening 235 gradually abuts against the stop block 214. Specifically, the stop block 214 can be located directly below the preload wheel 250. When the drawer 220 is fully pulled out of the support 210, due to the stopping action of the stop block, only the front half of the top cover 230 is pulled out with the drawer 220, so that when taking out or putting in food, there is no need to manually move the top cover 230 backward, making it more convenient to take out or put in food.

[0054] The upper edges of the two side walls of drawer 220 are formed with slide rails 222, and the inner sides of the two side walls of top cover 230 are equipped with pulleys 236. The two pulleys 236 are slidably supported on the two slide rails 222 respectively. The arrangement of slide rails 222 and pulleys 236 can reduce the frictional resistance between top cover 230 and drawer 220 during relative sliding, making the drawer 220 push and pull more smoothly.

[0055] Specifically, the pulley 236 is positioned near the front end of the upper cover 230. The slide rail 222 includes a reset section 2221, a lifting section 2222, and a horizontal section 2223 that are smoothly connected from front to back. The pulley 236 and the slide rail 222 are configured such that after the upper cover 230 is stopped by the stop block 214, when the drawer 220 is pulled forward, the pulley 236 moves from the reset section 2221 of the slide rail 222 to the lifting section 2222 and then to the horizontal section 2223, causing the front end of the upper cover 230 to tilt upwards. This separates the first sealing rib 231 from the second sealing rib 221, making the relative sliding between the drawer 220 and the upper cover 230 smoother. When it is necessary to take out the food from the rear half of the drawer 220, simply push the upper cover 230 backwards gently, and the upper cover 230 will automatically retract into the bracket 210, making the operation convenient and simple.

[0056] Furthermore, the slide 222 may also include a gradient section 2224 that is smoothly connected to the tail end of the horizontal section 2223. The gradient section 2224 gradually slopes downward from front to back, and the tail end of the gradient section 2224 is basically level with the height of the reset section 2221. In this way, when the upper cover 230 is retracted to the bracket 210, the upper cover 230 can remain horizontal.

[0057] The specific application process of the drawer assembly 200 in this embodiment of the invention is as follows:

[0058] Reference Figure 8 During the process of pulling out only the front half of drawer 220, the top cover 230 moves synchronously with drawer 220 until the stop block 214 on boss 213 abuts against the rear opening edge of clearance opening 235 of top cover 230, at which point top cover 230 stops moving.

[0059] Reference Figure 9 When the drawer 220 is pulled forward, the pulley 236 of the top cover 230 can slide from the reset section 2221 of the slide rail 222 to the horizontal section 2223 via the lifting section 2222. During this process, the top cover 230 can rotate with the two rear support legs 234 as fulcrums, thereby causing its front end to tilt upward. The first sealing rib 231 and the second sealing rib 221 gradually separate, significantly reducing the frictional resistance when the top cover 230 and the drawer 220 slide relative to each other.

[0060] When drawer 220 reaches its maximum travel, drawer 220 stops moving. If you need to take out the food from the back half of drawer 220, simply push the top cover 230 back gently by hand. The top cover 230 will then retract into the bracket 210, and the top cover 230 will remain stable and not wobble under the action of the pre-tensioning wheel 250 and the pre-tensioning rib 240.

[0061] Reference Figure 10When the top cover 230 is fully retracted to the bracket 210, it will abut against the protruding limiting member of the branch air supply device 300, thus achieving the limiting function. At this time, closing the drawer 220 only requires pushing the drawer 220 back. During the process of pushing the drawer 220 back, the cooperation between the slide rail 222 and the pulley 236 can keep the first sealing rib 231 and the second sealing rib 221 in a separated state, making it easier and less strenuous to push the drawer 220 back. Until the pulley 236 moves to the reset section 2221 of the slide rail 222, the preload wheel 250 elastically presses against the preload rib 240, ultimately achieving the sealing of the drawer 220.

[0062] Furthermore, when the drawer 220 is closed with the top cover 230 pulled out halfway, the top cover 230 first engages with the drawer 220 via the cooperation of the pulley 236 and the slide rail 222, and then moves into the bracket 210 together with the drawer 220. When it encounters the pre-tightening wheel 250, the top cover 230 begins to be pressed down by the pushing force of closing the drawer 220. When the drawer 220 is fully retracted into the bracket 210, the pulley 236 of the top cover 230 moves to the reset section 2221 of the slide rail 222. The cooperation between the inner and outer slide rails restricts the drawer 220 from moving, and the protruding limiting structure of the branch air supply device 300 restricts the top cover 230 from moving. Under the action of the pre-tightening wheel 250 and the pre-tightening rib 240, the top cover 230 achieves a pre-tight seal on the drawer 220.

[0063] According to any one or a combination of the above optional embodiments, the embodiments of the present invention can achieve the following beneficial effects:

[0064] In this embodiment of the refrigerator 10 and its drawer assembly 200, when it is necessary to open the drawer 220, the drawer 220 and its top cover 230 can be pulled out of the support 210 as a whole, and then the top cover 230 can be lifted to open the top opening of the drawer 220 for taking out and putting in food. When it is necessary to close the drawer 220, the drawer 220 and its top cover 230 can be pushed into the support 210 as a whole. During the pushing process, the pre-tightening ribs 240 on both sides of the top cover 230 gradually move to the bottom of the pre-tightening wheel 250. Under the elastic pressure of the pre-tightening wheel 250, the top cover 230 is pressed tightly onto the drawer 220, which can prevent gaps between the top cover 230 and the drawer 220 due to the top cover 230 not being fastened tightly, and effectively ensure the sealing effect of the drawer 220.

[0065] Furthermore, in the refrigerator 10 and its drawer assembly 200 of this embodiment, the pulley 236 is positioned near the front end of the upper cover 230. The slide rail 222 includes a reset section 2221, a lifting section 2222, and a horizontal section 2223 smoothly connected from front to back. The pulley 236 and the slide rail 222 are configured such that after the upper cover 230 is stopped by the stop block 214, when the drawer 220 is pulled forward, the pulley 236 passes from the reset section 2221 of the slide rail 222 to the horizontal section 2223, causing the front end of the upper cover 230 to tilt upwards. This separates the first sealing rib 231 from the second sealing rib 221, making the relative sliding between the drawer 220 and the upper cover 230 smoother. When it is necessary to take out the food in the rear half of the drawer 220, simply push the upper cover 230 backwards gently, and the upper cover 230 will automatically retract into the bracket 210, making the operation convenient and simple.

[0066] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A drawer assembly for a refrigerator, comprising: The support has two opposing upright plates; The drawer is slidably connected between the two uprights; and The top cover, which snaps onto the drawer, is used to seal the top opening of the drawer; A pre-tightening structure is provided between the two sides of the top cover and the upright plate. The pre-tightening structure includes a pre-tightening rib and a pre-tightening wheel. The pre-tightening rib is fixed to the side wall of the top cover and extends obliquely from front to back and from top to bottom along the longitudinal direction of the top cover. The pre-tightening wheel is installed on the inner side of the upright plate and can rotate about an axis parallel to the transverse direction of the top cover. It is configured such that when the drawer is pushed into the bracket, the pre-tightening rib gradually moves with the top cover to the underside of the pre-tightening wheel so that the pre-tightening wheel elastically presses it. The inner sides of the two side walls and the inner side of the rear wall of the top cover are formed with first sealing ribs extending toward the interior of the top cover, and the outer sides of the two side walls and the outer side of the rear wall of the drawer are formed with second sealing ribs extending toward the exterior of the drawer. When the top cover is fastened to the drawer, the first sealing ribs are pressed against the second sealing ribs; and The top wall and side walls of the cover form an opening at the front end of the cover. The front end of the drawer is provided with a door. When the cover is fastened to the drawer, the front ends of the top wall and side walls of the cover abut against the inside of the door.

2. The drawer assembly according to claim 1, wherein, The pretensioning rib includes a fixed section and an elastic section that are smoothly connected from back to front. The fixed section is fixedly connected to the side wall of the upper cover on one side adjacent to the side wall of the upper cover, and the elastic section is spaced apart from the side wall of the upper cover on one side adjacent to the side wall of the upper cover.

3. The drawer assembly according to claim 1, wherein, A first sealing strip is provided on the lower surface of the first sealing rib or the upper surface of the second sealing rib; A second sealing strip is provided at the front end of the top cover or on the inner side of the door.

4. The drawer assembly according to claim 1, wherein, Both of the uprights have protrusions on their inner sides that protrude toward the drawer. The protrusions extend along the front-back direction of the uprights, and the two side walls of the top cover are respectively supported on the protrusions on their respective sides.

5. The drawer assembly according to claim 4, wherein, The bottom of both sides of the upper cover is provided with support feet at the front and rear ends, and the bottom of the support feet has a smooth arc surface.

6. The drawer assembly according to claim 4, wherein, The bottom of the side wall of the top cover has a clearance opening extending along its length. A stop block is provided on the platform of the boss. At least a portion of the stop block extends into the clearance opening, configured such that, during the process of pulling the drawer out of the bracket, the opening edge at the rear end of the clearance opening gradually abuts against the stop block.

7. The drawer assembly according to claim 6, wherein, The upper edges of the two side walls of the drawer are formed with slide rails, and the inner sides of the two side walls of the top cover are equipped with pulleys, and the two pulleys are slidably supported on the two slide rails respectively.

8. The drawer assembly according to claim 7, wherein, The pulley is located near the front end of the upper cover; The slide rail includes a reset section, a lifting section, and a horizontal section that are smoothly connected from front to back; The pulley and the slide rail are configured such that when the drawer is pulled forward after the upper cover is stopped by the stop block, the pulley moves from the reset section of the slide rail to the lifting section and then to the horizontal section, causing the front end of the upper cover to tilt upward.

9. A refrigerator, comprising a cabinet defining a storage compartment therein, wherein the storage compartment is provided with a drawer assembly according to any one of claims 1 to 8.

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