Double-layer drawer and refrigerator

Abstract

The utility model discloses a double-layer drawer, which belongs to the field of household appliances, solves the problem that a drawer or a tray is easy to open, and adopts the technical scheme that the double-layer drawer mainly comprises a shell, and a first drawer and a second drawer which are respectively connected with the shell in a sliding manner are arranged in the shell; a panel facilitating drawing of the first drawer is fixed to the outer side of the first drawer, a locking assembly is installed between the first drawer and the second drawer and has a locking state and an unlocking state, when the locking assembly is in the locking state, the first drawer and the second drawer are fixed in the opening direction, and when the locking assembly is in the unlocking state, the first drawer and the second drawer are fixed in the opening direction. The first drawer can drive the second drawer to be opened; when the locking assembly is in the unlocking state, the first drawer can slide in the sliding direction relative to the second drawer. According to the utility model, the second drawer is not easy to open due to misoperation. The utility model further provides a refrigerator which comprises the double-layer drawer.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a double-layer drawer and a refrigerator. Background Art

[0002] As a container that can keep food or other items in a constant low-temperature cold state, the refrigerator has become one of the indispensable household appliances in modern families. The refrigerator usually includes a refrigerator and a freezer separated from each other, which are used to store items that need to be stored at different temperatures. In order to facilitate the placement of some items, the refrigerator and the freezer are usually provided with drawers. The storage space in the drawer for storing items is usually set at a certain height to meet the height requirements of various items that can be stored, and as the volume of the refrigerator increases, the depth of the storage space is also set deeper and deeper. When there are many items to be placed, the items can only be stacked, which makes it inconvenient for users to take them.

[0003] Prior art CN103292566A discloses a refrigerator drawer, which includes a drawer body, the drawer body is provided with a storage space, and the refrigerator drawer also includes a tray assembly accommodated above the storage space. The tray assembly includes two trays arranged side by side in a direction perpendicular to the pull-out direction of the drawer body, each tray is provided with a storage cavity, and the tray is arranged on the drawer body to store items, thereby reducing the possibility of wasting space above the drawer body.

[0004] Since the items stored in the refrigerator are distinguished by the storage time and whether they are perishable, the items that need to be stored for a long time are usually placed at the bottom or in a drawer that is not often opened, and the perishable items also need an environment with a relatively constant temperature when they are stored. Although the above-mentioned prior art increases the utilization rate of the storage space by storing the items in the storage cavity of the drawer body and the tray, for the items with a relatively constant storage temperature, whether the drawer body is opened or the tray is slid to take the items, it is easy for the hotter air outside the refrigerator to enter the storage area and affect the storage of the items; in addition, in the prior art, if the items that children cannot eat too much or cannot touch are placed in the drawer body or the tray, when the children search for them, if they are placed in the tray, they can search directly, but if they are placed in the drawer body, the children will also pull out the drawer body to check, which will cause the children to find and eat more of the items that cannot be eaten too much or cannot be touched, affecting the children's physical and mental health. Utility Model Content

[0005] The utility model aims to provide a double-layer drawer to solve the problem that the drawer or tray is easy to be opened, so that the second layer is not easily opened by mistaken operation.

[0006] The purpose to be achieved by the utility model is to provide a double-layer drawer, so as to solve the problem that some drawers are easily opened and reduce the possibility of hot and cold exchange caused by frequent opening of the drawers.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a double-layer drawer, comprising a shell, in which a first drawer and a second drawer are respectively slidably connected to the shell, a panel for conveniently pulling out the first drawer is fixed to the outer side of the first drawer, a locking assembly is installed between the first drawer and the second drawer, and the locking assembly has a locked state and an unlocked state. When the locking assembly is in the locked state, the first drawer and the second drawer are fixed in an opening direction so that the first drawer can drive the second drawer to open; when the locking assembly is in the unlocked state, the first drawer can slide in a sliding direction relative to the second drawer.

[0008] After adopting the above technical solution, a first drawer and a second drawer are arranged on the shell, and a locking assembly is arranged between the first drawer and the second drawer. The first drawer is directly opened through the panel, so items that have been stored for a long time or have a high requirement for a constant temperature environment are stored in the second drawer. When the second drawer needs to be opened, the locking assembly is set as a locking device, so that the first drawer and the second drawer are fixed in the opening direction. When the first drawer is opened through the panel, the second drawer is also opened together, so that it is convenient to take out the items stored in the second drawer. When the second drawer does not need to be opened, the locking assembly is set to an unlocked state. When the first drawer is opened in the opening direction through the panel, the first drawer slides relative to the second drawer, so that when the first drawer is opened, the upper port of the second drawer is not affected by the first drawer, and the first drawer is opened. When the drawer is opened, the hot air that enters the shell is not easy to enter the second drawer, thereby reducing the possibility that the hot air entering the second drawer affects the constant temperature in the second drawer and then affects the items stored in the second drawer; in addition, cold drinks such as ice cream that children like to eat or items that are not suitable for touching can be placed in the second drawer, and the locking component is set to an unlocked state. When the child goes to take the ice cream and other cold drinks by himself, he opens the first drawer through the panel. Since the locking component is in an unlocked state, the second drawer is not easily brought out by the first drawer. When the child finds that the drawer is already opened, he usually does not continue to pull the first drawer, and fails to find cold drinks such as ice cream in the first drawer, and then gives up opening the second drawer, further reducing the possibility that the child's health is affected by eating too much cold drinks, or the physical and mental health is affected by touching some items that cannot be touched.

[0009] Furthermore, the panel is shielded on the outer side of the second drawer.

[0010] By adopting the above-mentioned technical solution, the panel is blocked on the outside of the second drawer, so that the second drawer can be hidden, reducing the possibility that the user can directly manually pull out the second drawer, thereby affecting the closing effect of the second drawer.

[0011] Furthermore, in the sliding direction of the first drawer, the first drawer is arranged on the outside of the second drawer; or, at least part of the structure of the first drawer is arranged above the second drawer; or, at least part of the structure of the first drawer is arranged below the second drawer; or, the first drawer and the second drawer are arranged side by side in the left-right direction.

[0012] By adopting the above-mentioned technical scheme, when installing and arranging the first drawer and the second drawer, the second drawer can be placed on the inner side of the first drawer, so that the second drawer and the first drawer are arranged along the opening direction, thereby improving the concealment of the second drawer and reducing the possibility of the second drawer being accidentally pulled out; or, part or all of the first drawer is placed above the second drawer, and when the first drawer is opened, the bottom plate of the first drawer blocks the top of the second drawer and the first drawer blocks the extended position of the shell, thereby reducing the possibility of the second drawer being accidentally opened, and the first drawer blocks to hide the second drawer, thereby reducing the possibility of a child discovering and opening the second drawer, and reducing the possibility of the second drawer being accidentally pulled out; or, part or all of the first drawer is set below the second drawer, and when the first drawer is pulled, it can be clearly observed whether the second drawer is pulled out; or, the first drawer and the second drawer are set side by side on the left and right, and the first drawer and the second drawer are set independently. When the first drawer is opened, the second drawer is not affected, thereby reducing the possibility of cold air in the second drawer escaping and hot air from the outside entering the second drawer.

[0013] Furthermore, a damping member is installed between the second drawer and the shell to increase the sliding resistance therebetween.

[0014] By adopting the above-mentioned technical solution, a damping member is added between the second drawer and the shell to increase the sliding resistance of the second drawer when it slides out of the shell, reduce the possibility of the second drawer being opened along with the first drawer when the first drawer is pulled out, and thus improve the stability of the second drawer.

[0015] Furthermore, a handle is provided on the panel.

[0016] By adopting the above-mentioned technical solution, when the first drawer or the second drawer needs to be opened, the user holds the handle, and the handle drives the first drawer or the first drawer and the second drawer to slide simultaneously, and the handle improves the stability of the user's grip when opening the first drawer.

[0017] Furthermore, the second drawer is slidably connected to the shell via a first guide rail structure, and the first drawer is slidably connected to the second drawer via a second guide rail structure.

[0018] By adopting the above-mentioned technical solution, the first drawer and the second drawer slide via the second guide rail structure, and the second drawer and the shell slide via the first guide rail structure, thereby reducing the possibility of jamming when the first drawer slides relative to the second drawer or the second drawer slides relative to the shell.

[0019] Furthermore, the locking assembly includes a first elastic member, a locking member movably connected to the first drawer, and a locking groove provided on the second drawer, the locking member having a locking position and an unlocking position, when the locking member is in the locking position, one end of the locking member extends into the locking groove so that the locking assembly is in a locked state; the first elastic member is connected between the first drawer and the locking member so that the locking member has a tendency to switch from the locking position to the unlocking position.

[0020] By adopting the above-mentioned technical solution, when it is necessary to lock the first drawer and the second drawer in the opening direction, the locking member is driven by the first elastic member to extend into the locking groove, so that the locking member is in a locked state, thereby locking the first drawer and the second drawer in the opening direction, so that the second drawer can be driven to open by the first drawer when necessary. When the second drawer does not need to be opened, the locking member is moved out of the locking groove by the first elastic member, so that the locking member is in an unlocked state, and the first drawer and the second drawer can slide relative to each other. When the first drawer is opened, the second drawer is not easily opened with the first drawer, thereby reducing the possibility of outside hot air entering the second drawer or cold air in the second drawer being discharged and affecting the items stored in the second drawer.

[0021] Furthermore, the locking assembly includes a connecting rod and a guide member with a guide groove, the guide member is installed in the second drawer, one end of the connecting rod is hinged to the first drawer, and the other end is slidably arranged in the guide groove through a sliding member, and the connecting rod is hinged to the sliding member, the guide groove includes an idle travel groove, an unlocking groove, a limit groove and a reset groove connected in sequence end to end, a one-way limit assembly is provided between the idle travel groove and the unlocking groove for allowing the sliding member to slide only in one direction from the idle travel groove to the unlocking groove, a second elastic member is connected between the sliding member and the housing to enable the sliding member to enter the limit groove when the sliding member is at the intersection position of the unlocking groove and the limit groove. The locking member is in a locking state when the sliding member is in the limit groove, and the limit groove limits the movement of the sliding member in the opening direction, so that the locking assembly is in a locked state; when the sliding member is in the idle travel groove, the locking assembly is in an unlocked state; a limit member is fixed on the shell, and an abutment is fixed on the sliding member or the connecting rod, and when the sliding member is in the junction position of the idle travel groove and the unlocking groove, the abutment abuts against the limit member to limit the movement of the sliding member in the opening direction, and when the sliding member is in the limit groove, the abutment and the limit member are staggered to enable the sliding member to move in the opening direction.

[0022] By adopting the above-mentioned technical solution, the guide member is installed on the second drawer, one end of the connecting rod is hinged on the first drawer, and the other end is slidably connected to the guide groove through the sliding member. When the first drawer and the second drawer are both closed, the sliding member is located at an end of the empty travel groove away from the first drawer. In the process of opening the first drawer, the connecting rod drives the sliding member to slide in the empty travel groove along the opening direction of the first drawer. When the end of the connecting rod slides to the tail end of the empty travel groove and passes through the one-way limit assembly, the end of the connecting rod and the sliding member slide into the unlocking groove. At this time, the stored items can be taken out from the first drawer, and at this time, the limit member blocks the abutment member in the opening direction of the first drawer, thereby reducing the possibility of the second drawer being directly driven to be opened in the opening direction of the first drawer due to the strong opening of the first drawer, thereby reducing the possibility of a child using greater force to open the second drawer; at the same time, it also reduces the possibility of the second drawer being opened. When the second drawer needs to be opened, the first drawer is pushed back in the unlocking slot, at which time the one-way limit assembly blocks the sliding member from sliding back and forth in the empty travel slot to return to the empty travel slot, so that the connecting rod and the sliding member slide along the unlocking slot in the unlocking slot. After the sliding member slides into the limit slot, the abutment member is staggered with the limit member in the height direction, and the limit member no longer blocks the abutment member, and the first drawer is pulled along the opening direction of the first drawer again. Through the engagement of the limit slot and the sliding member in the opening direction of the first drawer, the first drawer drives the second drawer to open through the connecting rod and the sliding member, and then the items in the second drawer are taken out. When opening the second drawer, the first drawer needs to be pushed back so that the sliding member enters the limit slot from the unlocking slot, and the abutment member and the limit member are staggered in the height direction, thereby reducing the possibility of a child opening the second drawer.

[0023] Furthermore, the one-way limiting assembly includes a third elastic member and a swinging member, one end of the swinging member is pivotally connected to the guide member, the other end of the swinging member extends into the intersection of the unlocking groove and the limiting groove, and the third elastic member is installed between the swinging member and the guide member.

[0024] By adopting the above-mentioned technical solution, when the sliding member slides in the idle travel groove to one end close to the first drawer, the sliding member abuts against the lower end of the swinging member, so that the upper end of the swinging member rotates and squeezes the third elastic member, and the abutment between the sliding member and the swinging member disappears. Under the elastic force of the third elastic member, the swinging member returns to its original position and extends into the idle travel groove again, thereby preventing the sliding member from sliding in the opposite direction and entering the idle travel groove again, thereby reducing the possibility of the sliding member deviating from the unlocking groove when pushing back the first drawer.

[0025] The utility model also provides a refrigerator, comprising an outer shell, a cavity arranged in the outer shell, and a refrigerator door which can be opened and closed and is arranged on the outer shell, wherein the refrigerator door is used to close the opening of the cavity, and the cavity is equipped with a double-layer drawer, and the opening direction of the first drawer and the second drawer is toward the refrigerator door.

[0026] By adopting the aforementioned technical solution, the aforementioned double-layer drawer is installed in the refrigerator, and items that need to be stored for a long time, have high refrigeration or freezing requirements, and items that children should not eat too much or should not be touched by children are placed in the second drawer, thereby reducing the possibility that items that need to be stored for a long time will be affected when the other items are taken out, or reducing the impact on items that require high refrigeration or freezing due to repeated opening of the refrigerator to take out items. At the same time, it reduces the possibility that children will open the second drawer and take out items stored in the second drawer that are not suitable for children to eat too much or should not be touched, thereby affecting the physical and mental health of children. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of a double-layer drawer of the utility model;

[0029] Figure 2 This is a schematic diagram of the vertical distribution of the first drawer and the second drawer in the utility model;

[0030] Figure 3 This is a schematic diagram of the distribution of the first drawer and the second drawer in the utility model along the third direction;

[0031] Figure 4 It is a schematic diagram of the installation of the locking member and the first elastic member in the utility model;

[0032] Figure 5 This is a schematic diagram of the installation of the guide member and the connecting rod in the utility model;

[0033] Figure 6 It is a schematic diagram of the installation of the limiting member and the abutting member in the utility model;

[0034] Figure 7 It is a structural schematic diagram of the guide groove and the one-way limit assembly in the utility model;

[0035] Figure 8 This is a schematic diagram of the structure of the swinging member blocking the sliding member in the utility model;

[0036] Fig. 9 It is a structural schematic diagram of the first drawer driving the second drawer to open in the utility model. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0038] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0039] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0040] Embodiment 1:

[0041] like Figures 1 to 5As shown, the utility model provides a double-layer drawer, including a shell body 1, on which are provided a first drawer 21 and a second drawer 22 respectively slidably connected to the shell body 1, a panel 23 for conveniently pulling out the first drawer 21 is fixed to the outer side of the first drawer 21, a locking assembly 3 is installed between the first drawer 21 and the second drawer 22, and the locking assembly 3 has a locked state and an unlocked state. When the locking assembly 3 is in the locked state, the first drawer 21 and the second drawer 22 are fixed in an opening direction, and when the locking assembly 3 is in the unlocked state, the first drawer 21 can slide in the opening direction relative to the second drawer 22. In most cases, the locking assembly 3 is set to the unlocked state. When the first drawer 21 is opened through the panel 23, the first drawer 21 slides relative to the second drawer 22 along the opening direction of the first drawer 21. At this time, the second drawer 22 is not opened as the first drawer 21 is pulled, thereby reducing the possibility of cold air in the second drawer 22 leaking out or hot air from the outside entering the second drawer 22. When it is necessary to open the second drawer 22 to take out the items in the second drawer 22, the locking assembly 3 is switched to the locked state, so that the first drawer 21 and the second drawer 22 are fixed in the opening direction of the first drawer 21. When the first drawer 21 is opened through the panel 23, the first drawer 21 drives the second drawer 22 to open, which is convenient for opening the second drawer. 22 takes out items stored in the second drawer 22, and by switching the locking state and the unlocking state of the locking component 3, the second drawer 22 is opened only when it is needed. Frequently used and infrequently used items, items that need to be stored at a higher constant low temperature, items that are not suitable for children to eat too much, and items that are not suitable for children to touch are stored in the first drawer 21 and the second drawer 22 respectively. When it is necessary to take out items in the second drawer 22, the locking component 3 is set to the locked state. When it is not necessary to take out items in the second drawer 22, the locking component 3 is switched to the unlocked state. It is not easy for children to open and take items stored in the second drawer 22 that children should not eat too much or should not touch, thereby further reducing the possibility of affecting the physical and mental health of children due to eating too much or touching by mistake.

[0042] In order to prevent the second drawer 22 from being opened by the user's bare hands, Figure 1 and Figure 2 As shown, the panel 23 is installed on the first drawer 21 and shields the outer side of the second drawer 22 along the opening direction of the first drawer 21 and the second drawer 22. The second drawer 22 is shielded by the panel 23, reducing the possibility of the second drawer 22 being directly opened.

[0043] The shell 1 has a first direction 11, a second direction 12, a third direction 13 and a fourth direction 14, wherein the first direction 11 is the pulling-out direction of the first drawer 21 and the second drawer 22, the second direction 12 is the pushing-back direction of the first drawer 21 and the second drawer 22, and the third direction 13 and the fourth direction 14 are two horizontal directions perpendicular to the first direction 11.

[0044] like Figures 2 to 5 As shown, when the first drawer 21 and the second drawer 22 are set, the first drawer 21 and the second drawer 22 can be distributed up and down, and all or part of the first drawer 21 can be set above the second drawer 22. When the first drawer 21 and the second drawer 22 are not opened and completely overlapped, the bottom plate of the first drawer 21 blocks the upper port of the second drawer 22, reducing the possibility of leakage of cold air in the second drawer 22; when the first drawer 21 and the second drawer 22 are not opened and partially overlapped, when the panel 23 is pulled to open the first drawer 21, the first drawer 21 blocks the second drawer 22 from exchanging cold and heat with the outside in its opening direction. When the first drawer 21 is located below the second drawer 22, the first drawer 21 and the second drawer 22 can be completely overlapped or partially overlapped when neither is opened. Since the first drawer 21 is below the second drawer 22, a shielding material is provided between the upper end of the second drawer 22 and the shell 1. When the first drawer 21 is opened, although the bottom plate of the second drawer 22 is exposed, it is not easy for hot and cold exchange to occur inside the second drawer 22. Therefore, the possibility of hot and cold exchange in the second drawer 22 affecting the items stored in the second drawer 22 can also be reduced.

[0045] In addition, if Figure 3 As shown, when the first drawer 21 and the second drawer 22 are set, the first drawer 21 and the second drawer 22 can also be set side by side in the third direction 13 and the fourth direction 14. In this case, the panel 23 is still installed on the first drawer 21, and blocks the outer side of the second drawer 22 along the third direction 13 or the fourth direction 14. The first drawer 21 and the second drawer 22 are independently set, and the panel 23 blocks the second drawer 22. When the first drawer 21 is opened, the second drawer 22 does not exchange heat with the outside, and thus does not affect the items stored in the second drawer 22.

[0046] The first drawer 21 and the second drawer 22 can also be distributed front and back along the first direction 11 and the second direction 12 and the first drawer 21 is located outside the second drawer 22. When the first drawer 21 is opened, the second drawer 22 is still close to the inner wall of the shell 1. The first drawer 21 blocks the second drawer 22 from exchanging heat with the outside world, thereby reducing the leakage of cold air in the second drawer 22 and affecting the constant low temperature in the second drawer 22.

[0047] In order to reduce the possibility of the second drawer 22 being opened due to the opening of the first drawer 21, a damping member for increasing the sliding resistance between the second drawer 22 and the shell 1 is installed between the second drawer 22 and the shell 1. When the locking assembly 3 is in the unlocked state and the first drawer 21 is opened through the panel 23, the damping member increases the resistance between the second drawer 22 and the shell 1, reducing the possibility of the second drawer 22 being pulled out with the first drawer 21, thereby improving the stability of the second drawer 22 in the unlocked state of the locking assembly 3.

[0048] like Figure 5 As shown, in order to improve the stability of the user's grip when pulling the panel 23, a handle 231 is provided on the surface of the panel 23 on the side facing away from the first drawer 21. When opening the first drawer 21 or the first drawer 21 and the second drawer 22, the user holds the handle 231, reducing the possibility of the user slipping out of the handle when opening the first drawer 21.

[0049] like Figure 5 As shown, in order to reduce the jamming phenomenon that may occur when the first drawer 21 and the second drawer 22 are opened, the second drawer 22 and the shell 1 are slidably connected via a first guide rail structure 16 to reduce the possibility of jamming when the second drawer 22 and the shell 1 slide, and the first drawer 21 and the second drawer 22 are slidably connected via a second guide rail structure 24 to reduce the possibility of jamming when the first drawer 21 and the second drawer 22 slide, thereby reducing the possibility of the first drawer 21 sliding out of the second drawer 22 without opening the second drawer 22.

[0050] In this embodiment, if Figure 4 As shown, the locking assembly 3 includes a first elastic member 31, a locking member 32 slidably connected to the first drawer 21, and a locking groove 33 provided on the second drawer 22. The locking member 32 is provided on the first drawer 21. One end of the first elastic member 31 is provided on the panel 23, and the other end is passed through the first drawer 21 and connected to the locking member 32. The locking member 32 has a locking position and an unlocking position. In the normal state, the locking member 32 is not extended into the locking groove 33 but is in the unlocking position. When the second drawer 22 needs to be opened, the first elastic member 31 drives the locking member 32 to extend into the locking groove 33 to switch the unlocking position of the locking member 32 to the locking position, thereby facilitating the opening of the second drawer 22. The locking position and the unlocking position are switched by the first elastic member 31, which facilitates the opening of the first drawer 21 and the second drawer 22.

[0051] When switching the locked state and the unlocked state through the first elastic member 31, the end of the first elastic member 31 is pressed away from the locking member 32, so that the locking member 32 slides into the locking groove 33 under the restriction of the first drawer 21, and the first elastic member 31 remains in the pressed state, pulling the panel 23 and the first drawer 21, driving the first drawer 21 to slide, and the locking member 32 abuts against the groove wall of the locking groove 33 on the side facing the first drawer 21 as the first drawer 21 is pulled, thereby driving the second drawer 22 to open.

[0052] Embodiment 2:

[0053] like Figure 5As shown, the locking assembly 3 includes a connecting rod 35 and a guide member 34 having a guide groove 36. The guide member 34 is installed on the second drawer 22. One end of the connecting rod 35 is hinged on the first drawer 21, and the other end is slidably arranged in the guide groove 36 through a sliding member 351. The connecting rod 35 is hinged to the sliding member 351.

[0054] like Figure 5 and Figure 6 As shown, the guide groove 36 includes an idle travel groove 361, an unlocking groove 362, a limit groove 363 and a reset groove 364 which are connected in sequence from end to end. When the first drawer 21 and the second drawer 22 are not opened, the end of the connecting rod 35 away from the first drawer 21 and the sliding member 351 are both located at the end of the idle travel groove 361 away from the first drawer 21. When the first drawer 21 needs to be opened, the first drawer 21 is pulled to slide along the first direction 11 through the panel 23, and the end of the connecting rod 35 away from the first drawer 21 drives the sliding member 351 to slide in the idle travel groove 361 until the sliding member 351 slides to the end of the unlocking groove 362 close to the first drawer 21. At this time, the first drawer 21 is fully opened, which is convenient for taking out stored items from the first drawer 21.

[0055] like Figure 6 and Figure 7 As shown, in order to prevent the sliding member 351 from sliding back from the unlocking groove 362 to the idle travel groove 361, a one-way limit assembly 37 is installed on the guide member 34 and is located between the idle travel groove 361 and the unlocking groove 362. The one-way limit assembly 37 prevents the sliding member 351 from sliding back from the unlocking groove 362 to the idle travel groove 361.

[0056] Specifically, the one-way limit assembly 15 includes a third elastic member 371 and a swinging member 372. The third elastic member 371 is installed on the guide member 34, and the swinging member 372 is hinged on the guide member 34. One end of the swinging member 372 abuts the third elastic member 371, and the other end extends into the idle travel groove 361. When the sliding member 351 slides toward the first drawer 21 in the idle travel groove 361, one end of the swinging member 372 abuts the third elastic member 371, and the other end rotates and moves away from the idle travel groove 361 under the abutment of the sliding member 351. After the sliding member 351 passes through the swinging member 372, the swinging member 372 enters the idle travel groove 361 again under the action of the third elastic member 371 to prevent the sliding member 351 from entering the idle travel groove 361 from the unlocking groove 362.

[0057] like Figure 6 to Figure 7As shown, in order to reduce the possibility that the first drawer 21 drives the second drawer 22 to open in the unlocked state due to a large force when the sliding member 351 is at one end of the unlocking groove 362 toward the first drawer 21, a limiting member 15 is provided on the inner wall of the housing 1, and a contact member 4 is provided on the sliding member 351. When the sliding member 351 is located in the idle travel groove 361 and at the junction of the idle travel groove 361 and the unlocking groove 362, the limiting member 15 blocks the contact member 4 in the first direction 11, thereby reducing the possibility that the second drawer 22 is accidentally opened in the process of opening the first drawer 21 due to a large force in the unlocked state. The contact member 4 can also be installed on the end of the connecting rod 35 away from the first drawer 21, and it is only necessary to keep the limiting member 15 able to block the contact member 4 when the sliding member 351 is in the idle travel groove 361 or at the junction of the idle travel groove 361 and the unlocking groove 362.

[0058] When the second drawer 22 needs to be opened, the first drawer 21 is pulled along the first direction 11 until the sliding member 351 is located at the junction of the idle travel groove 361 and the unlocking groove 362, and then the first drawer 21 is pushed back. The sliding member 351 slides along the unlocking groove 362 to the limiting groove 363 under the obstruction of the swinging member 372. Through the abutment between the sliding member 351 and the groove wall of the limiting groove 363 along the first direction 11, the first drawer 21 and the second drawer 22 are in a locked state in the first direction 11, thereby facilitating the opening of the second drawer 22 to take out the items stored in the second drawer 22.

[0059] In order to facilitate the sliding member 351 to enter the limiting groove 363 from the unlocking groove 362, a second elastic member 38 is installed between the sliding member 351 and the shell 1, one end of the second elastic member 38 is arranged on the outer wall of the second drawer 22, and the other end is connected to the sliding member 351, and the other end of the second elastic member 38 can also be connected to the end of the connecting rod 35 away from the first drawer 21. When the sliding member 351 slides to the limiting groove 363, the second elastic member 38 drives the sliding member 351 to fall into the limiting groove 363. When the user feels that the first drawer 21 has dropped appropriately during the process of pushing the first drawer 21 back, the user pulls the panel 23 and the first drawer 21 along the first direction 11. Figure 8 and Fig. 9 As shown, at this time, the limit member 15 and the abutment member 4 are misaligned in height. In the first direction 11, the limit member 15 no longer blocks the abutment member 4. In the process of pulling the panel 23, the sliding member 351 abuts against the groove wall of the limit groove 363 to drive the second drawer 22 to open; when the second drawer 22 is opened by the locking assembly 3 in this embodiment, the overall operation is relatively complicated. When the second drawer 22 stores items that are not suitable for children to eat or touch, when the second drawer 22 is opened, it is necessary to push the first drawer 21 into the first drawer 21 first, that is, to close the first drawer 21, and then pull out the first drawer 21 and the second drawer 22 again, so that the opening method of the second drawer 22 is more complicated, thereby effectively reducing the possibility of children opening the second drawer 22.

[0060] When resetting the opened first drawer 21 and the second drawer 22, the panel 23 is pushed along the second direction 12, the first drawer 21 and the sliding member 351 slide along the resetting groove 364 to the end of the idle travel groove 361 away from the first drawer 21, and then the panel 23 is pushed so that the second drawer 22 is pushed and reset.

[0061] Embodiment 3:

[0062] The utility model also provides a refrigerator, comprising an outer shell, a cavity arranged in the outer shell, and a refrigerator door that can be opened and closed and is arranged on the outer shell, the refrigerator door is used to close the opening of the cavity, the double-layer drawer disclosed in Example 1 or Example 2 and the shell 1 are installed in the cavity, and the opening direction of the first drawer 21 and the second drawer 22 is toward the refrigerator door.

[0063] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A double-layer drawer, comprising a shell, wherein a first drawer and a second drawer are respectively slidably connected to the shell, and a panel for conveniently pulling out the first drawer is fixed on the outer side of the first drawer, characterized in that: A locking assembly is installed between the first drawer and the second drawer, and the locking assembly has a locked state and an unlocked state. When the locking assembly is in the locked state, the first drawer and the second drawer are fixed in an opening direction so that the first drawer can drive the second drawer to open; when the locking assembly is in the unlocked state, the first drawer can slide in a sliding direction relative to the second drawer.

2. The double-layer drawer according to claim 1, characterized in that: The panel is shielded on the outer side of the second drawer.

3. The double-layer drawer according to claim 1, characterized in that: In the sliding direction of the first drawer, the first drawer is arranged on the outside of the second drawer; or, at least part of the structure of the first drawer is arranged above the second drawer; or, at least part of the structure of the first drawer is arranged below the second drawer; or, the first drawer and the second drawer are arranged side by side in the left-right direction.

4. The double-layer drawer according to claim 1, characterized in that: A damping member is installed between the second drawer and the shell to increase the sliding resistance therebetween.

5. The double-layer drawer according to claim 1, characterized in that: A handle is provided on the panel.

6. The double-layer drawer according to claim 1, characterized in that: The second drawer is slidably connected to the shell via a first guide rail structure, and the first drawer is slidably connected to the second drawer via a second guide rail structure.

7. The double-layer drawer according to claim 1, characterized in that: The locking assembly includes a first elastic member, a locking member movably connected to the first drawer, and a locking groove provided on the second drawer. The locking member has a locking position and an unlocking position. When the locking member is in the locking position, one end of the locking member extends into the locking groove to put the locking assembly in a locked state. The first elastic member is connected between the first drawer and the locking member so that the locking member has a tendency to switch from the locking position to the unlocking position.

8. The double-layer drawer according to claim 1, characterized in that: The locking assembly includes a connecting rod and a guide member with a guide groove, the guide member is installed in the second drawer, one end of the connecting rod is hinged to the first drawer, and the other end is slidably arranged in the guide groove through a sliding member, and the connecting rod is hinged to the sliding member, the guide groove includes an idle stroke groove, an unlocking groove, a limit groove and a reset groove connected in sequence from head to tail, a one-way limit assembly is provided between the idle stroke groove and the unlocking groove for allowing the sliding member to slide only in one direction from the idle stroke groove to the unlocking groove, a second elastic member is connected between the sliding member and the housing, so that the sliding member enters the limit groove when the sliding member is at the intersection of the unlocking groove and the limit groove, When the sliding member is in the limiting groove, the limiting groove limits the movement of the sliding member in the opening direction so that the locking assembly is in a locked state; when the sliding member is in the idle travel groove, the locking assembly is in an unlocked state; a limiting member is fixed on the shell, and an abutment member is fixed on the sliding member or the connecting rod. When the sliding member is in the junction position of the idle travel groove and the unlocking groove, the abutment member abuts against the limiting member to limit the movement of the sliding member in the opening direction. When the sliding member is in the limiting groove, the abutment member and the limiting member are staggered so that the sliding member can move in the opening direction.

9. The double-layer drawer according to claim 8, characterized in that: The one-way limiting assembly includes a third elastic member and a swinging member, one end of the swinging member is pivotally connected to the guide member, the other end of the swinging member extends into the intersection of the unlocking groove and the limiting groove, and the third elastic member is installed between the swinging member and the guide member.

10. A refrigerator, comprising a shell, a cavity disposed in the shell, and a refrigerator door that can be opened and closed on the shell, wherein the refrigerator door is used to close the opening of the cavity, characterized in that: The cavity is equipped with the double-layer drawer according to claim 1, and the opening direction of the first drawer and the second drawer is toward the refrigerator door.

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