CN115046362B

CN115046362B - Drawer assembly and refrigerator

Info

Publication number: CN115046362B
Application number: CN202210965442.4A
Authority: CN
Inventors: 黄凯; 翁健伟
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-11-08
Anticipated expiration: 2042-08-12
Also published as: CN115046362A

Abstract

The invention discloses a drawer assembly and a refrigerator, and relates to the technical field of refrigeration equipment, wherein the drawer assembly comprises a base, a drawer and an energy storage ejection mechanism, and the base is connected with a refrigerator body of the refrigerator; the drawer is positioned above the base and can move along a first direction relative to the base, and a pushing assembly and a pushing stop block are arranged on the bottom surface of the drawer; the energy storage ejection mechanism is connected to the base and comprises a movable rack, a locking block and a switch component, the movable rack is connected to the base in a sliding mode along a first direction and is connected with a first spring fixed to the base, the locking block can lock the movable rack, and the switch component is used for pushing the locking block to unlock the movable rack; the pushing assembly comprises a mounting seat and a pushing block, the pushing block is connected to the mounting seat in a sliding mode along a second direction, the second direction is perpendicular to the first direction, the pushing block can push the movable rack and compress the first spring, and when the locking block locks the movable rack, the pushing block avoids the movable rack; the unlocked movable rack pushes the stop block out to extend the drawer.

Description

Drawer assembly and refrigerator

Technical Field

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

Background

A refrigerator is a freezing apparatus maintaining a stable low temperature for maintaining a low temperature state of food materials or other articles. The refrigerator is internally provided with a refrigerating component, and cold energy is prepared through the refrigerating component to keep low temperature.

In the related art, a refrigerator generally has a drawer for placing various articles, and some of the drawers used in the refrigerator have an automatic ejection function. When the drawer is pushed into the refrigerator, the automatic ejection mechanism is directly abutted to the drawer, so that a gap is easily formed between the drawer and the refrigerator body, and the influence on the sealing performance is poor.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a drawer assembly which can effectively improve the sealing property between a drawer and a refrigerator body.

The invention also provides a refrigerator with the drawer assembly.

According to the first aspect of the invention, the drawer assembly comprises a base, a drawer and an energy storage ejection mechanism, wherein the base is used for being connected with a refrigerator body of a refrigerator; the drawer is positioned above the base and can move along a first direction relative to the base, and a pushing assembly and a pushing stop block are arranged on the bottom surface of the drawer; the energy storage ejection mechanism is connected to the base and comprises a movable rack, a locking block and a switch component, the movable rack is connected to the base in a sliding mode along the first direction, the movable rack is connected with a first spring fixed to the base, the locking block can lock the movable rack, and the switch component is used for pushing the locking block to unlock the movable rack; the pushing assembly comprises a mounting seat and a pushing block, the pushing block is connected to the mounting seat in a sliding mode along a second direction, the second direction is perpendicular to the first direction, the pushing block can abut against the movable rack to push the movable rack and compress the first spring, and when the locking block locks the movable rack, the pushing block avoids the movable rack; and the unlocked movable rack passes through the push-out stop block to extend the drawer.

The drawer assembly according to some embodiments of the first aspect of the present invention has at least the following advantages: when the drawer is pushed in, the movable rack is pushed by a pushing block of the pushing assembly, and the first spring is compressed to realize energy storage; when the drawer is pushed in place, the movable rack is limited by the locking block, the first spring is in a compressed state, and the pushing block avoids the movable rack at the moment, so that the movable rack is prevented from applying external thrust to the drawer, the drawer is tightly attached to a refrigerator body, and the sealing property is improved; when the drawer needs to be pulled out, the locking block is pushed through the switch component to unlock the movable rack, the movable rack moves in the reverse direction under the pushing of the first spring, the drawer automatically extends out through the pushing of the stop block, and a user can take and use articles in the drawer conveniently.

According to some embodiments of the first aspect of the present invention, the pushing assembly further comprises a fourth spring, one end of the fourth spring is connected to the pushing block, the other end of the fourth spring is limited to the mounting seat, the pushing block is provided with a first inclined surface facing the moving rack, the moving rack is provided with a second inclined surface, and the second inclined surface is parallel to the first inclined surface and can abut against the first inclined surface.

According to some embodiments of the first aspect of the present invention, the pushing block comprises a sliding piece and a guiding piece, the sliding piece is a triangle, the first inclined plane is formed on a side surface of the sliding piece, and the guiding piece abuts against a side surface of the moving rack.

According to some embodiments of the first aspect of the present invention, the fourth spring is arranged along the second direction, the mounting seat is provided with a positioning plate, the positioning plate and the pushing block are provided with limiting posts, and two ends of the fourth spring are respectively sleeved with one of the limiting posts.

According to some embodiments of the first aspect of the present invention, the energy storage pop-up mechanism further comprises a fixed rack, a ring gear and a movable rod, the fixed rack is fixed on the base and is arranged along the first direction, the ring gear has an outer gear ring and an inner gear ring, the movable rack and the fixed rack are engaged with two opposite sides of the outer gear ring, the movable rod is connected to the base in a sliding manner along the first direction, the movable rod is connected with a planetary gear, the planetary gear is engaged with the inner gear ring, the locking block is connected to the base in a sliding manner along the second direction, one end of the movable rod is provided with a hook, the locking block can limit the hook to lock the movable rod, the switch component is used for pushing the locking block to unlock the movable rod, and the movable rod can push the push-out stopper to extend the drawer.

According to some embodiments of the first aspect of the present invention, the locking block is provided with a third slope for the hook to push the locking block, and the locking block is connected with a second spring fixed to the base.

According to some embodiments of the first aspect of the present invention, the switch component is a push rod, the push rod is connected to the base in a sliding manner along the first direction, one end of the push rod is provided with a fourth inclined surface, the fourth inclined surface is used for pushing the locking block, and the other end of the push rod is provided with an operating portion located outside the base.

According to some embodiments of the first aspect of the present invention, one end of the push rod where the fourth slope is disposed is connected to a third spring fixed to the base.

According to some embodiments of the first aspect of the present invention, the switch component is an electric push rod, the electric push rod is arranged along the first direction, and one end of the electric push rod is provided with a fourth inclined surface for pushing the locking block.

The refrigerator according to the second aspect embodiment of the invention comprises the drawer assembly of the first aspect embodiment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a drawer assembly according to an embodiment of the first aspect of the present invention;

FIG. 2 is a schematic view of the drawer assembly of FIG. 1 at an initial stage of insertion;

FIG. 3 is a schematic view of the drawer assembly of FIG. 1 after being pushed in;

FIG. 4 is a bottom view of the drawer assembly of FIG. 1 and a hidden base.

The reference numbers are as follows:

a base 100, a pressure plate 110, a guide piece 111;

the drawer 200, the push-out stop block 220, the mounting seat 230, the pushing block 231, the fourth spring 232 and the positioning plate 233;

the movable rack 310, the first spring 311, the fixed rack 320, the ring gear 330, the outer ring gear 331, the inner ring gear 332, the movable lever 340, the hook 341, the locking block 350, the third inclined surface 351, the second spring 352, the switch member 360, the fourth inclined surface 361, the operating portion 362, the third spring 363, and the planetary gear 370.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings only for the convenience of description of the present invention and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.

The refrigerator is an electric appliance for providing a low-temperature environment to store food materials and other articles, is popular with people and is widely used. A refrigerator generally has a drawer for placing articles therein, and some of the drawers have an automatic extending function for a user's convenience in taking and using the drawer. In the related art, the gear rack kinematic pair is driven by the motor to push the drawer, so that the automatic extending function is realized, and the drawer and the objects inside the drawer are heavy in weight, so that a motor with high power is required to be used, the running noise of the combination of the motor and the gear rack kinematic pair is high, the user experience is poor, the production cost is high, and the improvement is needed.

Referring to fig. 1 to 4, an embodiment of a first aspect of the present invention provides a drawer assembly, which is applied to a refrigerator, and is capable of effectively improving an operation noise of an automatically extending drawer, reducing production cost, improving user experience, facilitating attachment of the drawer to a refrigerator body of the refrigerator, and maintaining sealing performance.

The drawer assembly comprises a base 100, a drawer 200 and an energy storage ejection mechanism, wherein a groove for accommodating the drawer 200 is formed in a box body of the refrigerator, the base 100 is connected with the box body of the refrigerator and is located on the lower side of the groove, the drawer 200 is usually in sliding connection with the box body of the refrigerator, a sliding rail is arranged in the box body, the drawer 200 can be retracted and extended through the sliding rail, the moving direction of the drawer 200 is defined as a first direction, the drawer 200 is located above the base 100, the energy storage ejection mechanism is connected to the base 100, and when the drawer 200 is retracted, the energy storage ejection mechanism is located below the drawer 200.

A push assembly and a push-out stop 220 are provided on the bottom surface of the drawer 200 to cooperate with the stored energy ejection mechanism. The energy storage ejection mechanism comprises a movable rack 310, a fixed rack 320, a ring gear 330, a movable rod 340, a locking block 350 and a switch component 360, wherein the movable rack 310 and the fixed rack 320 are arranged along a first direction, the movable rack 310 can slide relative to the base 100 along the first direction, the fixed rack 320 is fixed on the base 100, the movable rack 310 is connected with a first spring 311, and the other end of the first spring 311 is limited by the base 100.

The ring gear 330 is ring-shaped, an outer ring gear 331 is formed at an outer side of the ring gear 330, an inner ring gear 332 is formed at an inner side of the ring gear 330, the moving rack 310 and the fixed rack 320 are simultaneously engaged with the outer ring gear 331, and the moving rack 310 and the fixed rack 320 are distributed at opposite sides of the ring gear 330. It is understood that the ring gear 330 can move and rotate relative to the base 100, the ring gear 330 is held by the moving rack 310 and the fixed rack 320, and the holding is performed by the engagement of the teeth, and further, the base 100 may be coupled to the pressing plate 110, and the ring gear 330 is axially held by the pressing plate 110, preventing the ring gear 330 from coming off.

The movable rod 340 is also slidably connected to the base 100 and moves in the first direction, and the movable rod 340 is connected with a planetary gear 370, the planetary gear 370 can freely rotate, and the planetary gear 370 is engaged with the inner gear ring 332. It is understood that, in order to achieve the sliding and guiding of the movable bar 340, two guide pieces 111 arranged in the first direction may be provided at the pressing plate 110, and the two guide pieces 111 sandwich the movable bar 340, thereby defining the moving direction of the movable bar 340. The planetary gear 370 may have a rotation shaft, which is inserted into the mounting hole of the movable rod 340 and can freely rotate; or the movable lever 340 is provided with a rotation shaft to which the planetary gear 370 is mounted and can freely rotate.

The locking block 350 is also slidably connected to the base 100, but the moving direction of the locking block 350 is a second direction, the second direction is perpendicular to the first direction, a hook 341 is disposed at one end of the movable rod 340, and when the locking block 350 moves to the locking position, the hook 341 hooks the locking block 350 so as to lock the movable rod 340; when the locking block 350 moves in the reverse direction, the locking block 350 is disengaged from the hook 341, and the movable lever 340 is unlocked. In order to achieve the sliding and guiding of the locking block 350, second guide bars arranged in the second direction are provided on the base 100, and the second guide bars are two and distributed on both sides of the locking block 350, defining the moving direction of the locking block 350.

It is understood that the switch member 360 is used to push the locking block 350 such that the locking block 350 is disengaged from the hook 341 to unlock the movable lever 340.

The propelling component comprises a mounting seat 230 and a propelling block 231, wherein the propelling block 231 can slide along the second direction, the propelling block 231 is used for pushing the movable rack 310, and the first spring 311 is compressed for realizing energy storage. The push-out stopper 220 is located in the moving direction of the movable rod 340, and when the movable rod 340 is unlocked, the movable rod 340 can push the push-out stopper 220, thereby extending the drawer 200.

The use process of the drawer assembly is as follows: a user puts articles into the drawer 200, and then pushes the drawer 200 into the refrigerator, as shown in fig. 2, the drawer 200 pushes the movable rack 310 of the energy storage ejection mechanism through the pushing block 231, and simultaneously compresses the first spring 311 to realize energy storage, the movable rack 310 is movably matched with the fixed rack 320, so that the ring gear 330 is driven to rotate, the planet gear 370 is driven to rotate along with the ring gear 330, and simultaneously the movable rod 340 is driven to move towards the locking block 350; as shown in fig. 3, when the drawer 200 is pushed in place, the hook 341 of the movable rod 340 hooks the locking block 350, so as to lock the movable rod 340, at this time, the first spring 311 is in a compressed state, energy is accumulated, the pushing block 231 moves to one side of the movable rack 310 along the second direction, because the planet gear 370 and the ring gear 330 have a slight virtual position, the first spring 311 pushes the movable rack 310 to move reversely by a slight distance, at this time, the pushing block 231 avoids the movable rack 310, the pushing block 231 does not block the movable rack 310, the movable rack 310 is prevented from ejecting the drawer 200, and meanwhile, the drawer 200 is prevented from being buckled with the refrigerator cabinet, so that the use stability is improved.

When a user needs to take out the articles in the drawer 200, the user pushes the locking block 350 through the switch component 360, the locking block 350 is separated from the hook 341, so as to unlock the movable rod 340, the first spring 311 loses the limit and releases energy, under the pushing of the first spring 311, the movable rack 310 moves in the reverse direction, the ring gear 330 is driven to rotate in the reverse direction, the planetary gear 370 rotates along with the ring gear 330, meanwhile, the movable rod 340 is driven to move in the direction away from the locking block 350, the pushing-out stop block 220 is pushed through the movable rod 340, so that the drawer 200 automatically extends out, the user can take out the articles in the drawer 200 conveniently, the user does not need to pull out the drawer 200 forcibly, and the operation is simplified. The drawer assembly adopts an energy storage ejection mechanism as a power mechanism, the drawer 200 is pushed to extend by the acting force of the first spring 311, the running noise is low, the user experience is improved, a motor is not needed, the production cost is reduced, and the product competitiveness of the refrigerator is improved.

It is understood that the mount 230 is provided with a fourth spring 232 arranged in the second direction, one end of the fourth spring 232 is connected to the push block 231, and the other end is defined in the mount 230. The pushing block 231 is provided with a first inclined surface facing the moving rack 310, the moving rack 310 is provided with a second inclined surface parallel to the first inclined surface, and both can abut. During the process of pushing the drawer 200 in, the first inclined surface of the pushing block 231 abuts against the second inclined surface of the moving rack 310, thereby pushing the moving rack 310, and simultaneously compressing the first spring 311, the fourth spring 232 restrains the pushing block 231, so that the pushing block 231 keeps abutting against the moving rack 310; during the pushing-in process, the first spring 311 and the fourth spring 232 are compressed simultaneously; when the drawer 200 is pushed in place, at this time, the compression resistance of the first spring 311 is large, the pushing block 231 overcomes the resistance of the fourth spring 232, under the action of the first inclined plane and the second inclined plane, the pushing block 231 moves to the side surface of the movable rack 310, the movable rack 310 is not blocked, avoidance is realized, the first spring 311 pushes the movable rack 310 to move reversely by a small distance (because the planet gear 370 and the ring gear 330 have slight meshing virtual positions), the pushing block 231 cannot block the movable rack 310, the movable rack 310 is prevented from ejecting the drawer 200, meanwhile, the drawer 200 is prevented from being buckled with a refrigerator body, and the use stability is improved. At this time, the fourth spring 232 is compressed, and when the drawer 200 is automatically extended, the fourth spring 232 pushes the pushing block 231 to reset for the next use by pushing the drawer 200. In addition, a pin may be disposed on the base 100, and when the drawer 200 is pushed into place, the pushing block 231 contacts the pin, and under the action of the pin (such as the engagement of the pin with the inclined plane, and the engagement of the pin with the inclined guide rod), the pushing block 231 moves to the side of the moving rack 310 without blocking the moving rack 310.

Referring to fig. 3 and 4, it can be understood that the push block 231 includes a slider and a guide piece having an integrated structure, the slider has a triangular shape, and the first inclined surface is formed at a side surface of the slider, so that when the drawer 200 is pushed in place, the triangular slider is easily moved to a side surface of the moving rack 310, and the frictional resistance is small; in addition, the guide plate abuts against the side face of the movable rack 310, the positioning and guiding effects are achieved, the sliding piece is prevented from deviating, meanwhile, the sliding piece is prevented from being clamped with the movable rack 310, and the reliability is improved.

Referring to fig. 3, it can be understood that the fourth spring 232 is arranged along the second direction, the mounting seat 230 is provided with a positioning plate 233, the positioning plate 233 and the pushing block 231 are provided with limiting posts, and two ends of the fourth spring 232 are respectively sleeved with one of the limiting posts, so that the fourth spring 232 is prevented from being twisted or displaced, and the use reliability is improved.

Referring to fig. 2 and 3, it can be understood that the locking block 350 is provided with a third slope 351, the third slope 351 can abut against the hook 341, the locking block 350 is connected with a second spring 352 fixed to the base 100, when the movable lever 340 moves toward the locking block 350, the hook 341 pushes the locking block 350 through the third slope 351 while compressing the second spring 352, then the hook 341 goes over the locking block 350, and the second spring 352 pushes the locking block 350 to be reset, thereby defining the hook 341, and locking the movable lever 340. The working process is automatic, the operation of the user is simplified, the convenience is improved, and the user experience is improved. The hook 341 may also be provided with an inclined surface matching the third inclined surface 351, so that the contact and the sliding are smoother and more reliable. One end of the locking block 350, which faces away from the movable rod 340, is provided with a limiting portion, which is used for limiting the maximum stroke of the movable rod 340 and preventing the movable rod 340 from moving excessively to affect the engagement between the fixed rack 320 and the ring gear 330.

Referring to fig. 2 and 3, it can be understood that the switch member 360 may be a push rod, the push rod is slidably connected to the base 100 along a first direction, one end of the push rod is provided with a fourth inclined surface 361, the fourth inclined surface 361 abuts against the locking block 350, and the other end of the push rod is provided with an operation portion 362 located outside the base 100. When a user needs to take out an article in the drawer 200, the operation portion 362 pushes the push rod, and the push rod pushes the locking block 350 to move through the fourth inclined surface 361, so that the movable rod 340 is unlocked, and the operation is simple and easy to use. When the user releases the push rod, the second spring 352 pushes the locking block 350 to automatically reset. The locking block 350 may be provided with an inclined surface matching with the fourth inclined surface 361, and the push rod may push the locking block 350 more smoothly, thereby improving the reliability of use.

It is understood that the push rod is provided with a third spring 363 connected to one end of the fourth inclined surface 361, one end of the third spring 363 is connected to the push rod, and the other end is fixed to the base 100. The user pushes the push rod through the operation part 362, the push rod pushes the locking block 350 to move through the fourth inclined surface 361, at this time, the third spring 363 is compressed, and when the user loosens the push rod, the third spring 363 pushes the push rod to automatically reset, so that the use is more convenient.

It is understood that the switch component 360 can also be a power push rod (not shown in the figure) which is arranged along the first direction, and one end of the power push rod is also provided with a fourth inclined surface, and the power push rod pushes the locking block 350 to move through the fourth inclined surface 361, so as to unlock the movable rod 340. The electric push rod does not need to output large power, a model with smaller power can be selected, and the cost and the running noise can be controlled at a lower level.

It is understood that the switch unit 360 can be eliminated, and a motor (not shown) is mounted on the base 100, and the motor drives the locking block 350 through a gear set, and the gear set can adopt a combination of a gear and a rack to lock the movable rod 340 and unlock the movable rod 340, so as to achieve the purpose of automatic operation. The power requirement for driving the locking block 350 is low, the motor can be selected to be a model with low power, and the cost and the running noise can be controlled at a low level.

The second aspect of the present invention provides a refrigerator, which includes the drawer assembly of the first aspect, the drawer assembly includes a base 100, a drawer 200, and an energy storage ejecting mechanism, and a pushing assembly and a pushing stopper 220 are disposed on a bottom surface of the drawer 200 to cooperate with the energy storage ejecting mechanism. The energy storage ejection mechanism comprises a movable rack 310, a fixed rack 320, a ring gear 330, a movable rod 340, a locking block 350 and a switch component 360, wherein the movable rack 310 and the fixed rack 320 are arranged along a first direction, the movable rack 310 can slide relative to the base 100 along the first direction, the fixed rack 320 is fixed on the base 100, the movable rack 310 is connected with a first spring 311, and the other end of the first spring 311 is limited by the base 100.

The ring gear 330 is ring-shaped, an outer ring gear 331 is formed at an outer side of the ring gear 330, an inner ring gear 332 is formed at an inner side of the ring gear 330, the moving rack 310 and the fixed rack 320 are simultaneously engaged with the outer ring gear 331, and the moving rack 310 and the fixed rack 320 are distributed at opposite sides of the ring gear 330. The movable rod 340 is also slidably connected to the base 100 and moves in the first direction, and the movable rod 340 is connected with a planetary gear 370, the planetary gear 370 can freely rotate, and the planetary gear 370 is engaged with the inner gear ring 332. The locking block 350 is also slidably connected to the base 100, but the moving direction of the locking block 350 is a second direction, the second direction is perpendicular to the first direction, a hook 341 is disposed at one end of the movable rod 340, and when the locking block 350 moves to the locking position, the hook 341 hooks the locking block 350 so as to lock the movable rod 340; when the locking block 350 moves in the reverse direction, the locking block 350 is disengaged from the hook 341, and the movable lever 340 is unlocked. The switch member 360 is used to push the locking block 350 so that the locking block 350 is disengaged from the hook 341 to unlock the movable lever 340.

The use process of the drawer assembly is as follows: a user puts articles into the drawer 200, and then pushes the drawer 200 into the refrigerator, as shown in fig. 2, the drawer 200 pushes the moving rack 310 of the energy storage ejection mechanism through the pushing block 231, and at the same time, the first spring 311 is compressed to realize energy storage, the moving rack 310 is movably matched with the fixed rack 320, so that the ring gear 330 is driven to rotate, the planet gear 370 is driven to rotate along with the ring gear 330, and the movable rod 340 is driven to move towards the locking block 350; as shown in fig. 3, when the drawer 200 is pushed in place, the hook 341 of the movable rod 340 hooks the locking block 350, so as to lock the movable rod 340, at this time, the first spring 311 is in a compressed state, energy is accumulated, and the pushing block 231 moves to one side of the movable rack 310 along the second direction, because the planet gear 370 and the ring gear 330 have a slight virtual position, the first spring 311 pushes the movable rack 310 to move reversely for a slight distance, the pushing block 231 does not block the movable rack 310, so as to prevent the movable rack 310 from ejecting the drawer 200, and at the same time, avoid affecting the buckling of the drawer 200 with the refrigerator cabinet, thereby improving the stability of use.

When a user needs to take out the articles in the drawer 200, the user pushes the locking block 350 through the switch component 360, the locking block 350 is separated from the hook 341, so as to unlock the movable rod 340, the first spring 311 loses the limit and releases energy, under the pushing of the first spring 311, the movable rack 310 moves in the reverse direction, the ring gear 330 is driven to rotate in the reverse direction, the planetary gear 370 rotates along with the ring gear 330, meanwhile, the movable rod 340 is driven to move in the direction away from the locking block 350, the pushing-out stop block 220 is pushed through the movable rod 340, so that the drawer 200 automatically extends out, the user can take out the articles in the drawer 200 conveniently, the user does not need to pull out the drawer 200 forcibly, and the operation is simplified. The drawer assembly adopts the energy storage pop-up mechanism as a power mechanism, the drawer 200 is pushed to extend by the acting force of the first spring 311, the running noise is low, the user experience is improved, a motor is not needed, the production cost is reduced, and the product competitiveness of the refrigerator is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A drawer assembly, comprising:

the base is used for connecting a refrigerator body of the refrigerator;

the drawer is positioned above the base and can move along a first direction relative to the base, and a pushing assembly and a pushing stop block are arranged on the bottom surface of the drawer;

the energy storage ejection mechanism is connected to the base and comprises a movable rack, a locking block and a switch component, the movable rack is connected to the base in a sliding mode along the first direction, the movable rack is connected with a first spring fixed to the base, the locking block can lock the movable rack, and the switch component is used for pushing the locking block to unlock the movable rack;

the propelling assembly comprises a mounting seat and a propelling block, the propelling block is connected to the mounting seat in a sliding mode along a second direction, the second direction is perpendicular to the first direction, the propelling block can abut against the movable rack to push the movable rack and compress the first spring, and when the locking block locks the movable rack, the propelling block moves back to the movable rack; the unlocked movable rack passes through the push-out stop block to enable the drawer to extend out.

2. The drawer assembly of claim 1, wherein the pushing assembly further comprises a fourth spring, one end of the fourth spring is connected with the pushing block, the other end of the fourth spring is limited on the mounting seat, the pushing block is provided with a first inclined surface facing the movable rack, the end surface of the movable rack is provided with a second inclined surface, and the second inclined surface is parallel to the first inclined surface and can abut against the first inclined surface.

3. The drawer assembly of claim 2, wherein the push block includes a triangular shaped slide with a first ramp formed on a side of the slide and a guide tab that abuts a side of the moving rack.

4. The drawer assembly of claim 2, wherein the fourth spring is disposed along the second direction, the mounting base is provided with a positioning plate, the positioning plate and the pushing block are provided with limiting posts, and two ends of the fourth spring are respectively sleeved with one of the limiting posts.

5. The drawer assembly according to any one of claims 1 to 4, wherein the energy storage ejection mechanism further comprises a fixed rack fixed to the base and arranged in the first direction, a ring gear having an outer ring gear and an inner ring gear, and a movable rod engaged with opposite sides of the outer ring gear, the movable rod slidably connected to the base in the first direction, a planetary gear connected to the movable rod, the planetary gear engaged with the inner ring gear, and a locking block slidably connected to the base in the second direction, wherein a hook is provided at one end of the movable rod, the locking block can define the hook to lock the movable rod, the switch member is used to push the locking block to unlock the movable rod, and the movable rod can push the push-out stopper to extend the drawer.

6. The drawer assembly of claim 5, wherein the locking block is provided with a third ramp for the hook to push the locking block, the locking block having a second spring attached thereto that is fixed to the base.

7. The drawer assembly of claim 6, wherein the switch component is a push rod, the push rod is slidably connected to the base along the first direction, one end of the push rod is provided with a fourth inclined surface, the fourth inclined surface is used for pushing the locking block, and the other end of the push rod is provided with an operating part located outside the base.

8. The drawer assembly of claim 7, wherein the end of the push rod on which the fourth ramp is disposed is connected to a third spring secured to the base.

9. The drawer assembly of claim 6, wherein the switch member is a power push rod disposed along the first direction, and one end of the power push rod is provided with a fourth slope for pushing the locking block.

10. Refrigerator, characterized in that it comprises a drawer assembly according to any one of claims 1 to 9.