CN210625073U - Refrigerating and freezing device - Google Patents

Abstract

The utility model provides a refrigeration and freezing device. It includes: a storage compartment, the storage compartment is divided into a plurality of first spaces; a plurality of electrical connection sockets, each of which is arranged at the rear of one of the first spaces; a plurality of drawers , each of the drawers is installed in one of the first spaces, and the rear of each of the drawers has an electrical connection plug inserted into the corresponding electrical connection socket to transmit signals and/or provide power. The storage compartment is divided into a plurality of first spaces arranged in a three-dimensional staggered manner, and drawers are arranged in each of the plurality of first spaces, or drawers are arranged in part of the first spaces, so that the independent partition of the refrigerator compartment can be realized. Due to the electrical connection jacks and electrical connection plugs, multiple electrical components can be used on the drawer, such as a control component for controlling each drawer, a sterilization component for sterilizing each drawer, and a display component for displaying information in each drawer. etc., significantly improve the functionality of refrigeration and freezing devices.

Description

Refrigerating and freezing device

Technical Field

The utility model relates to a refrigeration plant technical field especially relates to a cold-stored refrigeration device.

Background

With the development of social economy and the improvement of living standard of people, the refrigerator also becomes an indispensable household appliance in daily life of people. In the existing refrigerator cold storage chamber, for uniform temperature control, the uniform temperature of each layer is set to be 0-5 ℃, and the optimal storage temperature of all foods is different. In addition, the types of food stored in the existing refrigerating chamber are limited, a plurality of foods cannot be stored at the same time, so that the taste tainting is easy, if one food is rotten, the influence on other foods is caused, the preservation period of other foods is greatly shortened, and the deterioration and the decay of other foods are accelerated.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problems, the present invention has been made to provide a refrigerating and freezing apparatus which overcomes or at least partially solves the above-mentioned problems, and which can realize the arrangement of a plurality of drawer partitions in a refrigerating compartment or the like of a refrigerator, and can store a plurality of kinds of foods separately. Furthermore, the utility model discloses also can install a plurality of power consumption parts on the drawer, can improve cold-stored refrigeration device's functionality.

Specifically, the utility model provides a cold-stored refrigeration device, it includes:

a storage compartment partitioned into a plurality of first spaces;

a plurality of electrical connection receptacles, each of the electrical connection receptacles disposed at a rear portion of one of the first spaces;

a plurality of drawers, each drawer is arranged in one first space, and the rear part of each drawer is provided with an electric connection plug inserted into the corresponding electric connection socket so as to transmit signals and/or provide power.

Optionally, a display panel is provided at the front of each drawer, each display panel being connected to a respective electrical connection plug.

Optionally, the first spaces are arranged in at least two columns, and each column of the first spaces is arranged in turn along the vertical direction, wherein the number of the first spaces in any two columns of the first spaces is equal or different;

the storage compartment is divided into at least one second space, and the at least one second space is positioned at the lower side of the plurality of first spaces.

Optionally, the refrigeration and freezing device further comprises an air path system having a plurality of first air supply outlets and a main air return outlet; and is

Each drawer is provided with an air inlet and an air return opening, each air inlet is communicated with one first air supply opening, and each air return opening is communicated with the main air return opening.

Optionally, a plurality of first air supply outlets and a plurality of main air return outlets are arranged at the rear part of the storage compartment;

each drawer is provided with a rear wall, a front wall and a front plate arranged on the front side of the front wall;

the rear wall is provided with the air inlet, and the air inlet is inserted into the first air supply outlet;

the upper end of the front plate is connected with the upper end of the front wall to form a return air channel with a downward opening; and the front wall is provided with the air return inlet.

Optionally, the second space is one, and a fruit and vegetable box and a sealing box positioned on the lower side of the fruit and vegetable box are arranged in the second space;

the air path system is also provided with a second air supply outlet communicated with the sealing box.

Optionally, the air duct system includes an air supply assembly disposed at a rear portion of the storage compartment, and the air duct system has a plurality of first air supply outlets and a plurality of electrical connection sockets.

Optionally, a stop strip is arranged at the front end of the bottom wall of each first space, and a stop groove or a stop surface matched with the corresponding stop strip is arranged at the front end of the bottom of each drawer, so that each stop strip can block the drawer from moving forwards after the corresponding drawer is located in the corresponding first space.

The utility model discloses an among the cold-stored refrigerating plant, because separate into a plurality of first spaces that the solid staggered set up with storing room, all set up the drawer in a plurality of first spaces, or set up the drawer in the partial first space, can realize the independent subregion of refrigerator cold-stored room. The refrigerator has the advantages that the electric connection jack and the electric connection plug are arranged, so that a plurality of electric utilization parts such as a control part for controlling each drawer, a sterilization part for sterilizing each drawer, a display part for displaying information in each drawer and the like can be used on the drawer, and the functionality of the refrigerator is obviously improved.

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 thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic front view of a portion of the refrigeration freezer of FIG. 1;

FIG. 3 is a schematic rear elevational view of the refrigeration freezer of FIG. 1;

FIG. 4 is a schematic partial block diagram of the refrigeration-freezing apparatus shown in FIG. 1;

FIG. 5 is a schematic partial block diagram of the refrigeration-freezing apparatus shown in FIG. 1;

FIG. 6 is a schematic sectional view of a part of the structure of the refrigerating and freezing apparatus shown in FIG. 1;

FIG. 7 is a schematic partial block diagram of a blower assembly of the refrigeration chiller apparatus of FIG. 1;

FIG. 8 is a schematic block diagram of an on-off control in the refrigeration and freezing apparatus shown in FIG. 1;

FIG. 9 is another schematic block diagram of the on-off control of FIG. 8;

fig. 10 to 17 are schematic configuration views of the adjusting member of the on-off control apparatus shown in fig. 8 at respective preset positions.

Detailed Description

Fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention. As shown in fig. 1, and referring to fig. 2 to 17, an embodiment of the present invention provides a refrigeration and freezing apparatus. The refrigerating and freezing device comprises a box body 20, wherein a storage chamber is limited in the box body 20, and the refrigerating and freezing device is also provided with a door body for opening and closing the storage chamber. The storage chamber can be preferably a cold storage chamber, and a freezing chamber, a temperature changing chamber and the like can be arranged in the box body. The temperature in the freezer compartment is typically in the range of-22 deg.C to-14 deg.C. The temperature-changing chamber can be adjusted to-18 ℃ to 8 ℃ at will. Of course, the storage chamber can be other types of chambers, such as a freezing chamber, a temperature changing chamber, and the like.

The refrigeration system is configured to provide cooling to the storage compartment. In some embodiments, the refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttling device, an evaporator, and the like. The evaporator is configured to provide cooling directly or indirectly to the storage compartment. Since the refrigeration system of a refrigeration and freezing apparatus is known per se to those skilled in the art, it will not be described herein. And a cooling chamber may be provided in the cabinet 20, and particularly, may be provided at a rear side of the freezing chamber. The cooling chamber is used for accommodating the evaporator. The number of cooling chambers and evaporators may be one or more. When one evaporator can be used, cold energy is provided for all the compartments; when the number of evaporators is plural, each evaporator can provide cooling capacity for one compartment.

At least one rack and a vertical partition may be disposed in the storage compartment, so that the storage compartment is partitioned into a plurality of first spaces 21 by the rack and the vertical partition. The plurality of first spaces 21 includes the first spaces 21 arranged in at least two columns, and each column of the first spaces 21 is sequentially disposed in the vertical direction, wherein the number of the first spaces 21 in any two columns of the first spaces 21 is equal or different. For example, two columns of the first spaces 21 may be arranged, wherein the number of the first spaces 21 of one column may be three, and the number of the first spaces 21 of the other column may be two. Alternatively, the number of the first spaces 21 per column may be three.

The refrigerator-freezer may also include a plurality of drawers 30 and a plurality of electrical connection sockets 41. Each electrical connection socket 41 is arranged at the rear of one of the first spaces 21; and the rear of each drawer 30 has an electrical connection plug 42 inserted in a corresponding electrical connection socket 41 to transmit signals and/or provide power. The utility model discloses an among the cold-stored refrigerating plant, because separate into a plurality of first spaces that the solid staggered set up with storing room, all set up the drawer in a plurality of first spaces, or set up the drawer in the partial first space, can realize the independent subregion of refrigerator cold-stored room. The refrigerator has the advantages that the electric connection jack and the electric connection plug are arranged, so that a plurality of electric utilization parts such as a control part for controlling each drawer, a sterilization part for sterilizing each drawer, a display part for displaying information in each drawer and the like can be used on the drawer, and the functionality of the refrigerator is obviously improved.

In some embodiments of the present invention, the refrigeration and freezing apparatus further comprises an air path system. Each drawer 30 has an intake opening 31 and a return opening 32. The air path system may have a plurality of first blowing openings 71 and a main air return opening 72, each first blowing opening 71 is communicated with the cooling chamber and one air inlet 31 of one drawer 30, the air return opening 32 of each drawer 30 is communicated with the main air return opening 72, and the main air return opening 72 is communicated with the cooling chamber. The utility model discloses an among the cold-stored refrigerating plant, because separate into a plurality of first spaces that the solid staggered set up with storing room, all set up the drawer in a plurality of first spaces, or set up the drawer in the partial first space, can realize the independent subregion of refrigerator cold-stored room. Each drawer partition can independently enter and exit air, so that various foods can be stored respectively, the smell of the foods can be prevented from being mixed, and the storage and preservation period of each food can be prolonged.

In some embodiments of the present invention, a plurality of first supply ports 71 and a main return port 72 are provided at the rear portion of the storage compartment. An air inlet 31 is provided at the rear of each drawer 30, and an air return 32 is provided at the front of each drawer 30. For example, the air duct system includes an air supply assembly 70 provided at the rear of the storage compartment and having a plurality of first air supply ports 71. Preferably, a plurality of electrical connection sockets 41 are provided on the blower assembly 70. The storage compartment is further divided into at least one second space 24, and the at least one second space 24 is positioned at the lower side of the plurality of first spaces 21; the rear portion of one of the second spaces 24 is provided with a total return air opening 72.

In some embodiments of the present invention, each drawer 30 has a rear wall, a front wall, and a front panel disposed at a front side of the front wall; the rear wall is provided with an air inlet 31, and the air inlet 31 is inserted into a first air supply outlet 71; the upper end of the front plate is connected with the upper end of the front wall to form a return air channel 33 with a downward opening; and the front wall is provided with an air return opening 32. The second space 24 may be one in which the fruit box 22 and the sealing box 33 at the lower side of the fruit box 22 are disposed. The duct system further includes a second air supply port communicating with the seal box 33. The fruit box 22 is drawably disposed in the second space 24. The sealing case 33 may include a sealing portion and a moving portion, and the moving portion may be drawably mounted to the sealing portion or the case. For example, the sealing part can be a sealing barrel or a sealing cover, and the moving part can be a drawing box. When the drawer 30 needs to be refrigerated, air is transmitted into the corresponding drawer 30 through the first air supply opening 71 and the air inlet 31, the air return opening 32 of the drawer 30 is hidden in the front of the drawer 30 to form a convection channel, namely an air return channel 33, the air flows out of the drawer 30 and then flows downwards to convey cold energy for the fruit and vegetable box on the lower layer, and finally, the air returns from the total air return opening 72. The utility model discloses a special route that air current flows among cold-stored refrigerating plant may enough save multiple article, and can make full use of flow out the cold wind behind the drawer, resource utilization is high. And the air current flows smoothly, and the resistance is little, and the noise is low.

In some embodiments of the present invention, the air path system may further have an on-off control device 60, and the on-off control device 60 is configured to control the air flow from the cooling chamber to one or more of the first air supply openings 71, so as to control all or part of the air flow to the corresponding drawer 30, thereby controlling the temperature in the corresponding drawer 30. Specifically, the on-off control device 60 allows the air flow from the cooling chamber to flow to only one drawer 30, or allows the air flow to two or more drawers 30 at the same time, i.e., for adjusting the air supply to each drawer 30. That is, in this embodiment, the air path control device is added, so that air can be supplied to each drawer of the refrigerating compartment of the refrigerator according to the requirement, and different temperatures can be realized to store different kinds of articles. The free combination temperature zone can enable different foods to achieve the best storage environment, and the temperature and the humidity are independently controlled according to the requirements of users. The user can also decide the number of the drawers arranged in the first space according to the requirement.

In some embodiments of the present invention, the refrigeration and freezing apparatus may further include a gear generation device 50 configured to generate a plurality of gear instruction sets; each gear instruction group comprises a plurality of gear instructions, and each gear instruction group correspondingly controls one drawer 30; each gear command includes control information to bring the corresponding drawer 30 at a target temperature or within a target temperature range, so that the refrigerator-freezer controls the on-off control device 60 and thus the temperature within the corresponding drawer 30 according to each gear command.

For example, in some embodiments, the range generating device 50 includes a plurality of display panels disposed at the front of each drawer 30, each display panel being connected to a respective electrical connection plug 42. Each display control panel is configured to receive the signals and generate gear commands of a gear command set; and each display control panel is further configured to display a recommendation for the type of items stored within the corresponding drawer 30. In some embodiments, the user may click on a symbol of the category of item displayed on the display panel to generate a signal to cause the respective display panel to generate a gear instruction. Furthermore, each display control panel can adopt sliding, clicking and other modes to input information. The display control panel may also be referred to as a display touch screen, and may display selection buttons for vegetables, fruits, dry goods, milk, seasonings, tropical fruits, baby, etc., and the user may generate a corresponding shift command by clicking the corresponding selection button, so as to switch the drawer 30 to a certain state when the user needs to store what items. In some alternative embodiments of the present invention, the gear generating device 50 may be a general touch display screen of a refrigeration and freezing device.

In this embodiment, because of the air path system and the gear generating device 50, each drawer 30 of the refrigerating compartment of the refrigerator can realize independent temperature adjustment of multiple levels, such as 2 ℃, 5 ℃, 10 ℃ (low, medium, high), etc., so that the user can adjust the temperature of each drawer 30 of the refrigerator according to the needs and habits of the user, and through the balanced control of temperature and humidity, the optimal storage environment area for different foods is achieved, the user is guided to correctly place the optimal storage space for the foods, the waste is reduced, and the foods which are not dared to be placed into the refrigerator in the past can also be placed into the refrigerator to prolong the storage period. Prior to this application, the refrigerator cold rooms were at the same temperature, while the optimal storage temperatures and humidity for different foods were different, causing users to dare to put some of the low storage temperatures, ready-to-eat, tropical fruits, into the refrigerator. The food can not be eaten immediately when the temperature is too low, and the user can only put the food outside; the tropical fruits need to be stored in an interval of 8-10 ℃ for the best storage time and are not dare to be placed in a refrigerator. The food put into the refrigerator is not in the optimal temperature range, the food decays fast, and the waste is serious. The embodiment of the utility model provides a can freely adjust the cold-stored temperature of each drawer 30 of refrigerator according to user's demand, make food preserve in best storage space, guide the user correctly to place the best storage space of food, and can make food store in best temperature, humidity environment, improve fresh-keeping greatly. Each drawer 30 can realize multi-stage change of temperature and free switching. Further, when the number of shift commands in each shift command group is relatively large, for example, each time the target temperature in the drawer 30 changes by one degree celsius, the target temperature can be used as a new shift. This may also be referred to as stepless gear adjustment. For example, there may be 11 gears between 0 ℃ and 10 ℃, which allows each drawer 30 to be temperature regulated anywhere between 0 ℃ and 10 ℃. Of course, only three ranges of 0 ℃ ice temperature area, 4 ℃ golden area and 10 ℃ hot band fruit area can be arranged between 0 ℃ and 10 ℃.

In some embodiments of the present invention, the refrigerating and freezing device may also have a memory device, which is a general memory device, or a plurality of memory modules respectively disposed on the plurality of drawers 30. When the temperature-sensing device is used, a user can freely switch food, the drawer 30 automatically matches the temperature interval corresponding to the food according to the food switched by the user, the temperature interval corresponding to the food is automatically memorized by the memory device, and the temperature interval of the user can be automatically identified when the drawer 30 is switched to any position.

In some embodiments of the present invention, a temperature sensor can be disposed in each drawer 30 to detect the temperature change in the corresponding drawer 30, so that air can be supplied only when the drawer 30 needs to supply air, thereby preventing overcooling of food and saving energy.

In some embodiments of the present invention, the user can also determine the number of the drawers 30 according to his/her own needs, and the user can directly place the articles in the first space 21 where the drawers 30 are not placed. For example, the number of the first space 21 and the number of the drawers 30 are both 6, and a user can place 4 drawers 30, 2 drawers 30, and the like according to the requirement. The positions of the 6 drawers 30 can be arbitrarily switched. Each drawer 30 may be designed as a sealing structure except for the intake opening 31 and the return opening 32 to prevent the temperature of the air flow between the drawers 30 from interfering with the smell and the like. Further, the bottom wall front end of each first space 21 is provided with a stop bar 25, and the bottom front end of each drawer 30 is provided with a stop groove or a stop surface which is engaged with the corresponding stop bar 25, so that each stop bar 25 obstructs the drawer 30 from moving forward after the corresponding drawer 30 is located in the corresponding first space 21. The stop bar 25 may be a decorative bar disposed at the front end of the rack. The combination of the electrical connection socket 41 and the electrical connection plug 42 also prevents the drawer 30 from falling.

In some embodiments of the present invention, as shown in fig. 8 to 17, the on-off control device 60 may include a housing 61 and an adjusting member. The housing 61 has an airflow inlet 62, and the housing 61 has a plurality of airflow outlets 63 on a peripheral wall thereof. The adjusting member is rotatably provided in the housing 61, and has two symmetrically arranged airflow guide plates 64, each airflow guide plate 64 being parallel to the axial direction of the housing 61. One ends of the two airflow guide plates 64 define a first airflow port 65; and the adjusting member is configured to be rotatable to a plurality of preset positions, and to communicate the first airflow port 65 with one airflow outlet 63 at each of the preset positions, so that the airflow that enters between the two airflow guide plates 64 through the airflow inlet 62 enters the corresponding airflow outlet 63. The first airflow port 65 may have a size corresponding to that of each airflow outlet 63, and when the on-off control device 60 is operated, one airflow outlet 63 may be in a conducting state to deliver airflow to a target space communicating with the airflow outlet 63.

Further, the other ends of the two airflow guide plates 64 define a second airflow port 66. The housing 61 is provided with an airflow inlet 62 on a peripheral wall thereof, and the second airflow port 66 communicates with the airflow inlet 62 when the first airflow port 65 communicates with one airflow outlet 63. The second airflow port 66 may be larger than the first airflow port 65 such that the adjustment member may also be rotated to a position where the first airflow port 65 communicates with the airflow inlet 62 and the second airflow port 66 communicates with all of the plurality of airflow outlets 63. Preferably, the adjusting member is also rotatable to a position where one of the airflow guide plates 64 shields the airflow inlet 62, or a position where one of the airflow guide plates 64 shields the entire airflow outlet 63. As shown in fig. 10 to 17, the number of airflow outlets 63 may be six, and two airflow guide plates 64 may provide the on-off control device 60 with 8 operating states, including a state in which each airflow outlet 63 is individually opened, and a state in which all airflow outlets 63 are opened and the airflow inlets 62 are closed (that is, all airflow outlets 63 are closed).

In some preferred embodiments of the present invention, each airflow guide plate 64 includes first and second plate sections connected to each other, the distance between the ends of the two second plate sections is greater than the distance between the ends of the two first plate sections, and the length of the first plate section is less than the length of the second plate section; and between the ends of the two first plate segments is a first gas flow port 65. The first plate section and the second plate section not only can enable airflow to flow smoothly and generate low noise, but also can limit the first airflow opening 65 and the second airflow opening 66 meeting requirements, so that the on-off control device 60 is simple in structure and low in cost.

In order to facilitate the automatic control of the adjustment member, the on-off control device 60 further comprises a driving device configured to drive the adjustment member to rotate; and the driving means comprises a motor, a first gear and a second gear. The first gear is disposed in the housing 61 and connected to the adjusting member. The motor is arranged at the radial outer side of the shell 61, so that the thickness of the on-off control device 60 can be reduced, and the on-off control device 60 is particularly suitable for refrigerating and freezing devices such as refrigerators. The second gear is mounted on the output shaft of the motor and is meshed with the first gear, so that when the motor rotates, the adjusting piece is driven to rotate through the second gear and the first gear, and the working state of the on-off control device 60 can be controlled by controlling the rotation of the motor.

Each airflow outlet 63 of the on-off control device 60 is communicated with one drawer 30 through one or more first air supply outlets 71; the airflow inlet 62 communicates with the cooling chamber. The adjustment member may be configured to control the flow of air from the air flow inlet 62 to one or all of the plurality of air flow outlets 63, and thus all or a portion of the air flow to the respective drawer 30. That is, each of the air flow outlets 63 communicates with one drawer 30, and when the air flow outlet 63 is closed, the corresponding drawer 30 is stopped from being supplied with the cool air; when the air outlet 63 is opened, cool air can be supplied to the corresponding drawer 30. The on-off control device 60 is preferably disposed in the air supply assembly 70, and a plurality of air supply ducts 74 may be disposed in the air supply assembly 70, and each air supply duct 74 communicates with one air flow outlet and the first air supply outlet 71. The air supply assembly 70 further has an airflow inlet, which can be communicated with the cooling chamber via an air inlet pipeline, and an outlet of the cooling chamber can be provided with a fan for promoting airflow.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (8)

1. a refrigeration and freezing device, is characterized in that, comprises: a storage compartment, the storage compartment is divided into a plurality of first spaces; a plurality of electrical connection sockets, each of which is disposed at the rear of one of the first spaces; A plurality of drawers, each of which is installed in one of the first spaces, and the rear of each of the drawers has electrical connection plugs inserted into the corresponding electrical connection sockets to transmit signals and/or provide power. 2. The refrigerating and freezing device according to claim 1, characterized in that, The front part of each of the drawers is provided with a display control board, and each of the display control boards is connected to the corresponding electrical connection plug. 3. The refrigerating and freezing device according to claim 1 or 2, characterized in that, A plurality of the first spaces are arranged in at least two rows, and the first spaces in each row are arranged in sequence along the vertical direction, wherein the number of the first spaces in any two rows of the first spaces is equal or not equal; The storage compartment is divided into at least one second space, and at least one of the second spaces is located on the lower side of the plurality of first spaces. 4. refrigerating and freezing device according to claim 3, is characterized in that, also comprises: an air duct system with a plurality of first air supply ports and a total return air port; and Each of the drawers has an air inlet and an air return, each of the air inlets communicates with one of the first air supply ports, and each of the air return ports communicates with the total air return. 5. The refrigerating and freezing device according to claim 4, characterized in that, The rear part of the storage compartment is provided with a plurality of the first air supply ports and the total air return port; each of the drawers has a rear wall, a front wall and a front panel disposed on the front side of the front wall; The rear wall is provided with the air inlet, and the first air outlet is inserted into the air inlet; The upper end of the front plate is connected to the upper end of the front wall to form a return air passage with an opening facing downward; and the front wall is provided with the air return port. 6. The refrigerating and freezing device according to claim 5, characterized in that, The second space is one, and a fruit and vegetable box and a sealing box on the lower side of the fruit and vegetable box are arranged therein; The air duct system also has a second air supply port communicating with the sealing box. 7. The refrigerating and freezing device according to claim 5, characterized in that, The air duct system includes an air supply assembly, which is disposed at the rear of the storage compartment, and is provided with a plurality of the first air supply ports and a plurality of the electrical connection sockets. 8. The refrigerating and freezing device according to claim 1, characterized in that, The front end of the bottom wall of each of the first spaces is provided with a stop bar, and the bottom front end of each of the drawers is provided with a stop groove or a stop surface matched with the corresponding stop bar, so that each of the The stop strips prevent the drawers from moving forward after the corresponding drawers are located in the corresponding first spaces.

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