Refrigeration device

Abstract

The utility model provides a refrigerating device which comprises a box body, and the box body is provided with a refrigerating chamber. The door body is used for opening and closing the refrigeration chamber; the door body is provided with a through hole extending in the height direction of the door body, the upper end of the through hole penetrates through the top face of the door body, and the lower end of the through hole penetrates through the bottom face of the door body. The upper wall part and the lower wall part are respectively arranged above and below the door body; the door lock assembly comprises a first lock rod, and the first lock rod can move up and down in the height direction of the through hole; the second lock rod is movably arranged in the lower wall part; the driving piece is used for driving the second lock rod to move up and down in the height direction of the door body; when the driving piece drives the second lock rod to move upwards, the top end of the second lock rod can abut against the first lock rod so as to drive the first lock rod to move upwards, and the top end of the first lock rod can stretch out of the top face of the door body and stretch into the upper wall part. When the driving piece drives the second lock rod to move downwards, the second lock rod can retreat from the door body, and the first lock rod moves downwards along the through hole, so that the top end of the first lock rod is separated from the upper wall part.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration electrical technology, and mainly to a refrigeration device. Background Technology

[0002] Refrigeration equipment is a device that maintains a constant low temperature to store goods, and it is widely used in modern life and industrial production. For example, display cases have refrigerated compartments inside, creating a refrigerated environment for storing items.

[0003] Generally, the display case has an insulated refrigeration compartment inside. An evaporator is installed inside the display case, and a fan directs airflow through the evaporator to the refrigeration compartment, thus cooling it. Furthermore, the display case door closes in front of the refrigeration compartment, which helps to insulate the compartment.

[0004] Since most display cases lack locks, they are prone to theft in public places, causing economic losses to businesses. Currently, there are various types of locking devices for display case doors. Some devices, which lock the lower or middle part of the door, still have unstable locking structures, leading to theft of products from inside the display case. Moreover, the locking devices are complex in structure and expensive to manufacture. Utility Model Content

[0005] The purpose of this utility model is to provide a refrigeration device that allows the door to be securely locked in front of the refrigeration room.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] One aspect of this application provides a refrigeration device, including a housing forming the outer shell of the refrigeration device, the housing having a refrigeration compartment; a door disposed on the front side of the housing, one side of the door being rotatably connected to the housing for opening and closing the refrigeration compartment; the door having a through hole extending along the height direction of the door, the upper end of the through hole penetrating the top surface of the door, and the lower end of the through hole penetrating the bottom surface of the door; an upper wall portion disposed on the front side of the housing and located above the door; a lower wall portion disposed on the front side of the housing and located below the door; and a door lock assembly, the door lock assembly including: a first locking rod movably disposed within the through hole, the first locking rod being movable up and down along the height direction of the through hole. A second locking rod is movably disposed within the lower wall portion; a driving member is throttledly connected to the second locking rod, the driving member being used to drive the second locking rod to move up and down along the height direction of the door body; when the driving member drives the second locking rod to move upward, the top end of the second locking rod can extend from the bottom surface of the door body into the through hole, the top end of the second locking rod abuts against the first locking rod, thereby driving the first locking rod to move upward along the through hole, the top end of the first locking rod can extend out of the top surface of the door body and into the upper wall portion; when the driving member drives the second locking rod to move downward, the second locking rod can retract from the door body, the first locking rod moves downward along the through hole, so that the top end of the first locking rod separates from the upper wall portion.

[0008] The above technical solution has the following advantages or beneficial effects: By setting a through hole running vertically through the door body, the first locking rod in the door lock assembly can pass through the through hole, and a second locking rod located on the lower wall can be driven by a driving component. The second locking rod is used to drive the first locking rod to move up and down along the height direction of the door body. When the second locking rod moves upward and extends into the through hole, the bottom end of the second locking rod abuts against the first locking rod, and then, driven by the driving component, it can extend upward into the upper wall. In this way, the upper end of the door body forms a rigid connection with the housing. The cooperation structure between the first locking rod and the upper wall provides a stable support point for the first locking rod, making it difficult for the upper end of the door body to be damaged or pried by external forces in both the horizontal and vertical directions. Moreover, when the second locking rod extends into the door body, it forms a rigid connection with the lower end of the door body. The cooperation structure between the second locking rod and the door body provides a stable support point for the second locking rod, making it difficult for the lower end of the door body to be damaged or pried by external forces in both the horizontal and vertical directions. On the other hand, by providing a through hole along the height of the door, the vertical external force on the door can be distributed across the entire height of the door during the process of the first locking rod moving up and down within the through hole or after locking, further enhancing the door's resistance to damage and improving the stability of the door lock structure. Moreover, the door lock structure of this application has a simple locking structure that is easy to operate in conjunction with the door's locking mechanism.

[0009] In some embodiments of this application, a refrigeration device is provided. The first locking rod includes a rod body disposed in the through hole along the height direction of the door body; a limiting portion is disposed on the periphery of the rod body and protrudes relative to the periphery of the rod body; the door body includes a limiting wall disposed in the through hole, the limiting wall extending from the side wall of the through hole toward one side of the rod body; when the driving member drives the second locking rod to move downward, the second locking rod retracts from the door body so that the top of the rod body retracts from the door body and moves downward, and the limiting portion can abut against the upper part of the limiting wall to support the rod body in the through hole.

[0010] Another technical solution described above has the following advantages or beneficial effects: By setting the limiting part on the periphery of the rod and making it protrude, the limiting part can form a mechanical limiting structure with the limiting wall extending from the side wall inside the through hole of the door. When the driving component drives the second locking rod to move downward, and the top of the first locking rod exits the door and moves downward, the limiting part can just abut against the upper part of the limiting wall. This not only ensures that the first locking rod can be reliably supported in the through hole in the vertical direction, but also avoids the problem of the first locking rod accidentally moving or falling off due to vibration, external impact, or other factors, thus ensuring the stability of the door locking. On the other hand, the limiting wall can abut against the limiting part to limit the height of the first locking rod. By setting the height position of the limiting wall, the maximum displacement of the rod downward can be limited, preventing the rod from extending out of the door from the lower end of the through hole, so as to avoid damage to the first locking rod and affecting the locking process. Furthermore, it can also prevent the rod from extending into the lower wall of the door after it enters the door body, thus preventing the door body from forming a locking structure with the lower wall when it is unlocked, which can effectively improve the durability and reliability of the door lock components.

[0011] In some embodiments of this application, a refrigeration device is provided, wherein a first reinforcing member is provided in the top of the door body, the upper end of the through hole is formed in the first reinforcing member, and the limiting wall is provided in the first reinforcing member.

[0012] Another technical solution described above has the following advantages or beneficial effects: When the limiting wall abuts against the limiting part, thereby restricting the height displacement of the second locking rod, the limiting wall needs to withstand the pressure and friction from the limiting part. By placing the limiting wall inside the first reinforcing member, the reinforcing member provides support during the abutment process between the limiting wall and the limiting part, preventing the limiting wall from deforming or being damaged due to excessive force, thereby improving the reliability of the limiting structure between the door body and the second locking rod.

[0013] In some embodiments of this application, a refrigeration device is provided, wherein the upper wall includes: a first front baffle, disposed on the front side of the housing and located above the door; a first bottom plate, extending from the bottom of the first front baffle toward the side where the housing is located, the first bottom plate having a lock hole, the lock hole being arranged corresponding to the upper end of the through hole; the top end of the first locking rod being able to extend out of the top surface of the door and extend into the first bottom plate through the lock hole, so that the first locking rod is engaged with the bottom plate.

[0014] Another technical solution described above has the following advantages or beneficial effects: After the top of the first locking rod extends out of the top surface of the door, it can extend into the first base plate through the lock hole and engage with the base plate. In the horizontal direction, the first locking rod abuts against the side wall of the first base plate, thereby preventing the door from moving horizontally. Moreover, when the door is subjected to external forces, such as collisions or vibrations, the engagement between the first locking rod and the base plate can resist these external forces, preventing the door from separating from the housing, thereby enhancing the stability of the connection between the door and the housing.

[0015] In some embodiments of this application, a refrigeration device is provided, wherein the lower wall includes a second front baffle disposed on the front side of the housing and located below the door; a second top plate extending from the top of the second front baffle toward the side where the housing is located, the second top plate having a connecting hole, the connecting hole being arranged corresponding to the lower end of the through hole; when the driving member drives the second locking rod to move upward, the second locking rod can extend out of the second top plate through the connecting hole to extend into the through hole.

[0016] Another technical solution described above has the following advantages or beneficial effects: After the top of the second locking rod extends out of the top surface of the door, it can extend into the first base plate through the lock hole and engage with the base plate. In the horizontal direction, the second locking rod abuts against the side wall of the first base plate, thereby preventing the door from moving horizontally. Moreover, when the door is subjected to external forces, such as collisions or vibrations, the engagement between the second locking rod and the base plate can resist these external forces, preventing the door from separating from the housing, thereby enhancing the stability of the connection between the door and the housing.

[0017] In some embodiments of this application, a cooling device is provided. The lock assembly further includes a transmission rod, one end of which is pivotally connected to a second locking rod, and the other end of which is drively connected to a driving member. The driving member can drive the transmission rod to rotate in a first direction or a second direction, wherein the first direction is opposite to the second direction. When the driving member drives the transmission rod to rotate in the first direction, the transmission rod can drive the second locking rod to move upward along the height direction of the door. When the driving member drives the transmission rod to rotate in the second direction, the transmission rod can drive the second locking rod to move downward along the height direction of the door.

[0018] Another technical solution described above has the following advantages or beneficial effects: a transmission rod is provided between the driving component and the second locking rod, with one end of the transmission rod pivotally connected to the second locking rod. The transmission rod converts the rotational motion of the driving component into the linear motion of the second locking rod, thereby causing the second locking rod to move up and down along the height of the door. Furthermore, the driving component can drive the transmission rod to rotate bidirectionally, thus controlling the up-and-down movement of the second locking rod. This allows the transmission rod to change its rotation direction as needed, thereby controlling the movement of the second locking rod in different directions.

[0019] In some embodiments of this application, a cooling device is provided, wherein a second top plate is spaced apart from the bottom surface of the door to form a gap; the second top plate is provided with an installation opening, the installation opening being located near the communicating hole; the cooling device further includes a roller assembly, the roller assembly being located at the installation opening, the roller assembly including: a mounting shell, the mounting shell being connected to the side wall of the installation opening; a roller, rotatably disposed within the mounting shell, a portion of the roller extending to the gap, the roller being used for sliding contact with the bottom surface of the door.

[0020] Another technical solution described above has the following advantages or beneficial effects: The mounting shell provides a mounting structure for the roller and serves as a support structure for the roller. The mounting shell is connected to the side wall of the mounting opening, allowing the roller to be relatively fixed on the second top plate. Furthermore, the roller is rotatably disposed within the mounting shell, with a portion of the roller extending into the gap. When the door is opened or closed, the roller can slide against the bottom surface of the door, supporting and guiding the door's movement, making the opening and closing of the door smoother. Even if the door sags due to problems with the hinge structure or its own weight, the roller assembly improves the smoothness of door closure and reduces noise and wear during the opening and closing process.

[0021] In some embodiments of this application, a refrigeration device is provided, wherein the top peripheral sidewall of the mounting housing is provided with a supporting protrusion, the supporting protrusion is disposed on the second top plate, and the supporting protrusion is supported on the peripheral edge of the mounting port; the top peripheral sidewall of the mounting housing is provided with a snap-fit ​​groove, the snap-fit ​​groove is disposed below the supporting protrusion; the peripheral edge of the mounting port is snapped into the snap-fit ​​groove.

[0022] Another technical solution described above has the following advantages or beneficial effects: By providing a supporting protrusion on the mounting housing that contacts the peripheral edge of the mounting opening, support is provided for the mounting housing, which helps maintain the installation stability of the mounting housing and prevents it from falling or shifting due to gravity or other external forces. Furthermore, by providing a snap-fit ​​groove on the top peripheral wall of the mounting housing, the peripheral edge of the mounting opening snaps into the snap-fit ​​groove, and the structure of the supporting protrusion enables the mounting housing to be fixed and positioned in both vertical and horizontal directions. On the other hand, the snap-fit ​​structure between the mounting housing and the lower wall simplifies the installation structure of the roller assembly. Compared with bolt fixing, no additional fasteners are required, thereby reducing installation steps and improving installation efficiency.

[0023] In some embodiments of this application, a refrigeration device is provided, wherein the peripheral sidewall of the mounting housing is provided with a first inclined surface, the upper end of the first inclined surface is disposed near the support protrusion, and the snap-fit ​​groove is formed between the first inclined surface and the support protrusion; in the direction from top to bottom, the first inclined surface extends away from the peripheral sidewall of the mounting housing.

[0024] Another technical solution described above has the following advantages or beneficial effects: A snap-fit ​​groove can be formed between the first inclined surface and the supporting protrusion. When the peripheral edge of the mounting opening is snapped into the snap-fit ​​groove, that is, the peripheral edge of the mounting opening is clamped between the first inclined surface and the supporting protrusion. By providing a first inclined surface on the peripheral sidewall of the mounting shell, the first inclined surface can provide good guidance for the installation process of the mounting shell. When installing the mounting shell, the operator only needs to align the peripheral edge of the mounting opening with the snap-fit ​​groove and then gently press down on the mounting shell. The first inclined surface can guide the peripheral edge of the mounting opening to smoothly snap into the snap-fit ​​groove, thereby reducing the difficulty of installation and improving the accuracy and efficiency of installation.

[0025] Another aspect of this application provides a refrigeration device, including a housing forming the outer shell of the refrigeration device, the housing having a refrigeration compartment; a door disposed on the front side of the housing, one side of the door being rotatably connected to the housing for opening and closing the refrigeration compartment; the door having a through hole extending along the height direction of the door, the upper end of the through hole penetrating the top surface of the door, and the lower end of the through hole penetrating the bottom surface of the door; an upper wall portion disposed on the front side of the housing and above the door; a lower wall portion disposed on the front side of the housing and below the door; and a door lock assembly including a first locking rod movably disposed within the through hole, the first locking rod being movable up and down along the height direction of the through hole. A second locking rod is movably disposed within the upper wall portion; a driving member is throttledly connected to the second locking rod, the driving member being used to drive the second locking rod to move up and down along the height direction of the door body; when the driving member drives the second locking rod to move downward, the bottom end of the second locking rod can extend from the top surface of the door body into the through hole, the bottom end of the second locking rod abuts against the first locking rod, thereby driving the first locking rod to move downward along the through hole, the bottom end of the first locking rod can extend out of the bottom surface of the door body and into the lower wall portion; when the driving member drives the second locking rod to move upward, the second locking rod can retract from the door body, the first locking rod moves upward along the through hole, so that the bottom end of the first locking rod separates from the lower wall portion.

[0026] The above technical solution has the following advantages or beneficial effects: By setting a through hole running vertically through the door body, the first locking rod in the door lock assembly can pass through the through hole, and a second locking rod located on the upper wall can be driven by a driving component. The second locking rod is used to drive the first locking rod to move up and down along the height direction of the door body. When the second locking rod moves downward and extends into the through hole, the top of the second locking rod abuts against the top of the first locking rod, and then, driven by the driving component, it can extend downward into the lower wall. In this way, the lower end of the door body forms a rigid connection with the housing. The cooperation structure between the first locking rod and the lower wall provides a stable support point for the first locking rod, making it difficult for the upper end of the door body to be damaged or pried by external forces in both the horizontal and vertical directions. Moreover, the second locking rod extends into the door body, and the second locking rod forms a rigid connection with the upper end of the door body. The cooperation structure between the second locking rod and the door body provides a stable support point for the second locking rod, making it difficult for the upper end of the door body to be damaged or pried by external forces in both the horizontal and vertical directions. On the other hand, by providing a through hole along the height of the door, the vertical external force on the door can be distributed across the entire height of the door during the process of the first locking rod moving up and down within the through hole or after locking, further enhancing the door's resistance to damage and improving the stability of the door lock structure. Moreover, the door lock structure of this application has a simple locking structure that is easy to operate in conjunction with the door's locking mechanism. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0028] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of this application;

[0029] Figure 2 for Figure 1 A cross-sectional view;

[0030] Figure 3 for Figure 2 Enlarged view of a portion at point A;

[0031] Figure 4 for Figure 2 A magnified view of section B;

[0032] Figure 5 This is a schematic diagram of the door in one state;

[0033] Figure 6 This is a schematic diagram of the door in another state;

[0034] Figure 7 for Figure 6 A cross-sectional view;

[0035] Figure 8 for Figure 7 A magnified view of a portion at point C;

[0036] Figure 9 for Figure 7 A magnified view of a portion at point D;

[0037] Figure 10 for Figure 3 A schematic diagram of the first reinforcing member;

[0038] Figure 11 for Figure 2 A schematic diagram of the central door lock assembly;

[0039] Figure 12 for Figure 2 Exploded view of the installation of the lower middle wall and roller assembly;

[0040] Figure 13 for Figure 12 Schematic diagram of the middle roller assembly;

[0041] Figure 14 for Figure 13 A schematic diagram of the roller assembly from another perspective.

[0042] The correspondence between the reference numerals and the component names is as follows:

[0043] 1. Enclosure; 101. Refrigeration compartment; 102. First installation space; 103. Second installation space; 104. Lock hole; 105. Connecting hole; 106. Gap; 107. Mounting opening; 108. Ventilation hole;

[0044] 11. Upper wall; 111. First front baffle; 112. First bottom plate; 12. Lower wall; 121. Second front baffle; 122. Second top plate; 123. Second side plate; 13. Tank liner;

[0045] 2. Door body; 201. Through hole; 21. Limiting wall; 22. First reinforcing member; 23. Second reinforcing member;

[0046] 3. Door lock assembly; 31. First lock rod; 311. Rod body; 312. Limiting part; 32. Second lock rod; 33. Driving component; 34. Transmission rod; 35. Lock cylinder; 36. Door lock key;

[0047] 4. Roller assembly; 401. Snap-fit ​​groove; 41. Mounting housing; 42. Roller; 43. Support flange; 44. First inclined surface; 45. Second inclined surface; 46. Anti-slip rib. Detailed Implementation

[0048] This utility model provides a refrigeration device. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0049] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] The refrigeration device in the embodiments of the present invention can be a freezer, refrigerator or other refrigeration cabinet. The following uses a display cabinet as an example to describe in detail the improved technical solution of the refrigeration device in the embodiments of the invention.

[0052] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of this application.

[0053] like Figure 1 As shown, the refrigerator provided in this embodiment of the present invention includes a cabinet 1. The cabinet 1 can adopt a hollow structure such as a cuboid. The cabinet 1 forms the outer shell of the refrigeration device. It should be noted that the cabinet 1 can also adopt a hollow shell structure of other shapes.

[0054] Figure 2 for Figure 1 A cross-sectional view.

[0055] like Figure 2 As shown, in some embodiments, a refrigeration chamber 101 is formed inside the housing 1. The front side of the refrigeration chamber 101 may have an opening. Multiple refrigeration chambers 101 may be provided.

[0056] In some embodiments, multiple refrigeration compartments 101 can serve as independent storage spaces, such as freezers, refrigerators, and variable temperature compartments, to meet different refrigeration needs such as freezing, refrigeration, and variable temperature depending on the type of food, and to store items that require refrigeration or freezing. The multiple refrigeration compartments 101 can be arranged vertically or horizontally.

[0057] In some embodiments, the refrigeration device may include a liner 13. The liner 13 may be disposed inside the housing 1. The liner 13 is provided with a refrigeration compartment 101.

[0058] like Figure 1 and Figure 2 As shown, in some embodiments, the refrigeration unit includes a door 2. The door 2 is located on the front side of the housing 1 for opening and closing the refrigeration compartment 101.

[0059] In some embodiments, one side of the door 2 can be hinged to the front side of the housing 1 for opening and closing the refrigeration compartment 101. Specifically, when the door 2 closes the refrigeration compartment 101, the door 2 covers the front opening of the refrigeration compartment 101, thereby providing a certain heat preservation effect to the refrigeration compartment 101, reducing the loss of cold energy, and reducing energy consumption.

[0060] It should be noted that multiple doors 2 can be installed. Each door 2 can be installed in a one-to-one correspondence with a refrigeration room 101. Multiple doors 2 can open and close a single refrigeration room 101 simultaneously. A single door 2 can also open and close multiple refrigeration rooms 101 simultaneously.

[0061] In some embodiments, the refrigeration device includes a refrigeration system (not shown). The refrigeration system may be located inside the enclosure 1. The refrigeration system is used to provide cold air to the interior of the refrigeration compartments 101 to maintain a low-temperature environment in each refrigeration compartment 101.

[0062] In some embodiments, the refrigeration system may include a compressor (not shown). The compressor, as the power source of the refrigeration cycle, draws in low-temperature, low-pressure refrigerant gas and compresses it into a high-temperature, high-pressure gas. The compressor can deliver the high-temperature, high-pressure refrigerant to the condenser.

[0063] In some embodiments, the refrigeration system may include a condenser (not shown). The condenser can be used to receive refrigerant flowing from the compressor, cooling the high-temperature, high-pressure refrigerant gas from the compressor and converting it into a liquid state. The condenser can transfer heat from the refrigerant to the surrounding air, thus lowering the temperature of the refrigerant.

[0064] In some embodiments, the refrigeration system may include a throttling device (not shown). A condenser can deliver condensed refrigerant to the throttling device. The throttling device may be a capillary tube. The throttling device can be used to reduce the pressure of the refrigerant.

[0065] In some embodiments, the refrigeration system may include an evaporator (not shown). A throttling device may deliver a throttled and depressurized refrigerant into the evaporator. The evaporator may be used for the refrigerant vapor to evaporate and boil, thereby absorbing heat from the surrounding medium.

[0066] In some embodiments, the compressor, condenser, throttling device, and evaporator can be connected in sequence to form a refrigeration circuit. The refrigerant can circulate within the refrigeration circuit to achieve refrigeration of the interior of the housing 11.

[0067] like Figure 1 and Figure 2 As shown, in some embodiments, the housing 1 may include an upper wall portion 11. The upper wall portion 11 is located on the front side of the housing 1 and above the door 2. Specifically, the upper wall portion 11 is disposed on the front wall of the housing 1.

[0068] like Figure 2 As shown, in some embodiments, the upper wall portion 11 can be a frame-like structure. A first mounting space 102 can be formed within the frame-like structure.

[0069] In some embodiments, the upper wall portion 11 may be configured as a lightbox. A first mounting space 102 within the lightbox may be provided with a lighting assembly (not shown). The lightbox can guide the customer's eye, causing the customer to focus on specific products or display areas, thereby enhancing the product display effect within the display case.

[0070] like Figure 2As shown, in some embodiments, the housing 1 may include a lower wall portion 12. The lower wall portion 12 is located on the front side of the housing 1 and below the door 2. Specifically, the lower wall portion 12 is disposed on the front wall of the housing 1. Thus, the upper wall portion 11, the door 2, and the lower wall portion 12 can constitute the front wall of the housing 1.

[0071] like Figure 2 As shown, in some embodiments, the lower wall portion 12 can be a frame-like structure. A second mounting space 103 can be formed within the frame-like structure.

[0072] like Figure 1 As shown, in some embodiments, the front wall surface of the lower wall portion 12 may be provided with a plurality of ventilation holes 108. The plurality of ventilation holes 108 may communicate with the compressor chamber of the refrigeration unit, and outside air may enter the compressor chamber through the plurality of ventilation holes 108 for heat dissipation.

[0073] like Figure 2 As shown, in some embodiments, the refrigeration device may include a door lock assembly 3. The door lock assembly 3 has locked and unlocked states, wherein when the door lock assembly 3 is in the locked state, it can lock the door 2 to the front wall of the housing 1, and when the door lock assembly 3 is in the unlocked state, the door 2 can be freely opened or closed to the front wall of the housing 1 by the user.

[0074] Figure 3 for Figure 2 A magnified view of part A.

[0075] like Figure 2 and Figure 3 As shown, in some embodiments, the door lock assembly 3 may include a first locking rod 31. The door body 2 may have a through hole 201. The through hole 201 extends along the height direction of the door body 2. The upper end of the through hole 201 may penetrate the top surface of the door body 2. The lower end of the through hole 201 may penetrate the bottom surface of the door body 2. The first locking rod 31 is movably disposed within the through hole 201, and the first locking rod 31 is capable of moving up and down along the height direction of the through hole 201.

[0076] Specifically, when the first locking rod 31 moves upward along the through hole 201, it extends out of the door body 2 through the upper end of the through hole 201 and enters the upper wall portion 11. The first locking rod 31 and the upper wall portion 11 abut against each other and form a rigid connection, thereby locking the upper end of the door body 2 onto the front wall of the housing 1. When the first locking rod 31 moves downward along the through hole 201, it extends out of the door body 2 through the lower end of the through hole 201 and enters the lower wall portion 12. The first locking rod 31 and the lower wall portion 12 abut against each other and form a rigid connection, thereby locking the lower end of the door body 2 onto the front wall of the housing 1. The through hole 201 provides installation space for the first locking rod 31, and the length direction of the first locking rod 31 can be aligned with the height direction of the through hole 201.

[0077] In some embodiments, the through hole 201 can be located away from the hinged connection between the door body 2 and the housing 1. This prevents interference between the first locking rod 31 and the hinged connection of the door body 2 when the first locking rod 31 passes through the through hole 201. It should be noted that in some other embodiments, the through hole 201 can also be located near the center of the door body 2.

[0078] Figure 4 for Figure 2 A magnified view of section B.

[0079] like Figure 4 As shown, in some embodiments, the door lock assembly 3 may include a second locking rod 32. The second locking rod 32 is movably disposed within the lower wall portion 12 and is capable of moving up and down along the height direction of the door body 2. The second locking rod 32 may be installed within the second mounting space 103 of the lower wall portion 12.

[0080] Specifically, when the second locking rod 32 moves upward along the height direction of the door body 2, the second locking rod 32 can protrude upward through the lower wall portion 12 and extend into the through hole 201 of the door body 2 through the bottom surface of the door body 2. The top end of the second locking rod 32 abuts against the bottom end of the first locking rod 31, thereby providing the first locking rod 31 with an upward force, so that the first locking rod 31 can extend out of the door body through the upper end of the through hole 201 and enter the upper wall portion 11.

[0081] When the second locking rod 32 moves downward along the height direction of the door body 2, the second locking rod 32 can separate from the door body 2. At this time, the top of the second locking rod 32 separates from the first locking rod 31. The first locking rod 31 can move downward under the action of gravity and separate from the upper wall 11, so that the upper and lower ends of the door body 2 are unlocked respectively, and the door body 2 is in the unlocked state.

[0082] In some other embodiments, the second locking rod 32 can be movably disposed within the upper wall portion 11 and can move up and down along the height direction of the door body 2. The second locking rod 32 can be installed within the first mounting space 102 of the upper wall portion 11.

[0083] Specifically, when the second locking rod 32 moves downward along the height direction of the door body 2, the second locking rod 32 can protrude downward through the upper wall portion 11 and extend into the through hole 201 of the door body 2 through the top surface of the door body 2. The bottom end of the second locking rod 32 abuts against the top end of the first locking rod 31, thereby providing a downward force for the first locking rod 31, so that the first locking rod 31 can extend out of the door body through the lower end of the through hole 201 and enter the lower wall portion 12. When the second locking rod 32 moves upward along the height direction of the door body 2, the second locking rod 32 can separate from the door body 2. At this time, the bottom end of the second locking rod 32 separates from the first locking rod 31, and the first locking rod 31 can return upward to the state of being separated from the lower wall portion 12, so that the upper and lower ends of the door body 2 are unlocked respectively, and the door body 2 is in the unlocked state.

[0084] Figure 5 This is a schematic diagram of the door in one state; Figure 6 This is a schematic diagram of the door in another state.

[0085] like Figure 5 and Figure 6 As shown, in some embodiments, the door lock assembly 3 may include a drive member 33. The drive member 33 is located within the lower wall portion 12. The drive member 33 is drively connected to the second locking rod 32. The drive member 33 is used to drive the second locking rod 32 to move up and down along the height direction of the door body 2.

[0086] In some embodiments, the drive element 33 may be configured as a door lock key 36. The door lock assembly 3 may have a keyhole, into which the door lock key 36 extends to drive the lock cylinder 35 of the door lock assembly 3, thereby moving the second lock rod 32.

[0087] It should be noted that in some other embodiments, the driving component 33 can be a driving source such as a motor or electromagnet. The user can move the second locking rod 32 by the driving component 33 through a button, electronic barcode scanning, or other means.

[0088] like Figure 3 , Figure 4 and Figure 5 As shown, when the driving member 33 drives the second locking rod 32 to move upward, the top end of the second locking rod 32 can extend from the bottom surface of the door body 2 into the through hole 201. The top end of the second locking rod 32 abuts against the first locking rod 31 to drive the first locking rod 31 to move upward along the through hole 201. The top end of the first locking rod 31 can extend out of the top surface of the door body 2 and into the upper wall portion 11.

[0089] Specifically, when the user needs to lock the door 2 onto the housing 1, the second locking rod 32 can be moved upward by the driving component 33. At this time, as... Figure 4As shown, the driving component 33 drives the second locking rod 32 to move along the height direction of the door body 2 and then extends through the bottom surface of the door body 2 into the through hole 201 until the top end of the second locking rod 32 abuts against the bottom end of the first locking rod 31. Under the drive of the driving component 33, the second locking rod 32 drives the first locking rod 31 to move upward along the height direction of the door body 2 within the through hole 201, as shown. Figure 3 As shown, the top of the first locking rod 31 can extend out of the top surface of the door 2 and enter into the upper wall portion 11 to complete the locking action. At this time, the top of the second locking rod 32 extends into the upper wall portion 11, locking the upper end of the door 2 to the cabinet 1, and the top of the first locking rod 31 extends into the through hole 201 of the door 2, locking the lower end of the door 2. In this way, the upper and lower ends of the door 2 can be locked respectively, thereby improving the stability of the door 2 locked in front of the refrigeration compartment 101.

[0090] Figure 7 for Figure 6 A cross-sectional view; Figure 8 for Figure 7 A magnified view of a portion at point C; Figure 9 for Figure 7 A magnified view of a portion of point D.

[0091] like Figure 7 , Figure 8 and Figure 9 As shown, when the driving member 33 drives the second locking rod 32 to move downward, the second locking rod 32 can exit the door body 2, and the first locking rod 31 moves downward along the through hole 201 so that the top end of the first locking rod 31 separates from the upper wall 11.

[0092] Specifically, when the user needs to unlock the door 2, the second locking rod 32 can be moved downwards by the drive component 33. At this time, as... Figure 6 As shown, the second locking rod 32 can exit the door body 2 through the bottom surface of the door body 2 when it moves downward, thereby unlocking the lower end of the door body 2. Moreover, after the second locking rod 32 moves downward, it releases its resistance to the first locking rod 31. Under its own weight, the first locking rod 31 can move downward along the through hole 201. After the top of the first locking rod 31 separates from the upper wall 11, the upper end of the door body 2 is unlocked. At this time, the user can directly open the door body 2.

[0093] In some other embodiments, when the second locking rod 32 is located inside the upper wall portion 11, the driving member 33 may be located inside the upper wall portion 11.

[0094] When the driving member 33 drives the second locking rod 32 to move downward, the bottom end of the second locking rod 32 can extend from the top surface of the door body 2 into the through hole 201. The bottom end of the second locking rod 32 abuts against the first locking rod 31 to drive the first locking rod 31 to move downward along the through hole 201. The bottom end of the first locking rod 31 can extend out of the bottom surface of the door body 2 and into the lower wall portion 12.

[0095] Specifically, when the user needs to lock the door 2 onto the housing 1, the driving component 33 can drive the second locking rod 32 downwards. At this time, the driving component 33 moves the second locking rod 32 downwards along the height direction of the door 2, extending through the top surface of the door 2 into the through hole 201, until the bottom end of the second locking rod 32 abuts against the top end of the first locking rod 31. Driven by the driving component 33, the second locking rod 32 drives the first locking rod 31 downwards along the height direction of the door 2 within the through hole 201. The bottom end of the first locking rod 31 can extend out of the bottom surface of the door 2 and enter into the lower wall portion 12, completing the locking action. At this time, the bottom end of the second locking rod 32 extending into the lower wall portion 12 locks the lower end of the door 2 to the housing 1, while the bottom end of the first locking rod 31 extending into the through hole 201 of the door 2 locks the upper end of the door 2. In this way, the upper and lower ends of the door 2 can be locked, thereby improving the stability of the door 2 locked in front of the refrigeration chamber 101.

[0096] When the driving member 33 drives the second locking rod 32 to move upward, the second locking rod 32 can exit the door body 2, and the first locking rod 31 moves upward along the through hole 201 so that the bottom end of the first locking rod 31 separates from the lower wall 12.

[0097] Specifically, when the user needs to unlock the door 2, the second locking rod 32 can be driven upward by the drive component 33. At this time, since the second locking rod 32 moves upward, it can exit the door 2 through the top surface, thereby unlocking the upper part of the door 2. Moreover, after the second locking rod 32 moves upward, it releases its resistance to the first locking rod 31, and the first locking rod 31 can move upward along the through hole 201. After the bottom end of the first locking rod 31 separates from the lower wall 12, the lower part of the door 2 is unlocked, and the user can directly open the door 2.

[0098] In some embodiments, the door lock assembly may include a reset elastic structure. A first locking rod 31 is connected to the reset elastic structure. When the second locking rod 32 moves downward along the height direction of the door body 2 and abuts against the top end of the first locking rod 31, the reset elastic structure is compressed. At this time, the first locking rod 31 can extend downward from the bottom surface of the door body under the drive of the driving member 33 and the second locking rod 32, and protrude into the lower wall portion 12, so that the door body 2 is in a locked state.

[0099] Furthermore, when the second locking rod 32 moves upward along the height direction of the door body 2 and separates from the top of the first locking rod 31, the reset elastic structure resets under the elastic action, thereby driving the first locking rod 31 to reset upward and separate from the lower wall 12, so that the door body 2 is in the unlocked state.

[0100] In some embodiments, the reset elastic structure may be made of a material with elastic deformation, or a spring may be used.

[0101] In the existing technology, the locking structure of the door 2 only locks the lower, middle or upper part of the door 2. Because the locking structure is not stable enough, the theft of products inside the display case is still easy. Moreover, the current locking device has a complex structure and high manufacturing cost.

[0102] In this application, by providing a through hole 201 extending vertically through the door body 2, the first locking rod 31 in the door lock assembly 3 can pass through the through hole 201, and the second locking rod 32 located on the lower wall portion 12 is driven by the driving member 33. The second locking rod 32 is used to drive the first locking rod 31 to move up and down along the height direction of the door body 2. When the second locking rod 32 moves upward and extends into the through hole 201, the bottom end of the second locking rod 32 abuts against the first locking rod 31, and under the drive of the driving member 33, it can extend upward into the upper wall portion 11. In this way, the upper end of the door body 2 forms a rigid connection with the housing 1. The cooperation structure between the first locking rod 31 and the upper wall portion 11 provides a stable support point for the first locking rod 31, making it difficult for the upper end of the door body 2 to be damaged or pried by external forces in both the horizontal and vertical directions. Similarly, the second locking rod 32 extends into the door body 2, forming a rigid connection with the lower end of the door body 2. The mating structure between the second locking rod 32 and the door body 2 provides a stable support point for the second locking rod 32, making it difficult for the lower end of the door body 2 to be damaged or pried by external forces in both the horizontal and vertical directions. On the other hand, by providing a through hole 201 along the height direction of the door body 2, the process of the first locking rod 31 moving up and down within the through hole 201 or after locking can distribute the vertical external force on the door body 2 to the entire height of the door body 2, further enhancing the door body 2's resistance to damage and improving the stability of the door lock structure. Moreover, the door lock structure of this application has a simple locking structure that is easy to operate.

[0103] In some embodiments, the first locking rod 31 may include a rod body 311. The rod body 311 is disposed within the through hole 201 along the height direction of the door body 2.

[0104] like Figure 3 As shown, in some embodiments, the first locking rod 31 may include a limiting portion 312. The limiting portion 312 is provided on the periphery of the rod body 311. The limiting portion 312 protrudes relative to the periphery of the rod body 311.

[0105] like Figure 3 As shown, in some embodiments, the door body 2 includes a limiting wall 21. The limiting wall 21 is disposed within the through hole 201. The limiting wall 21 can extend from the side wall of the through hole 201 toward the rod 311. When the driving member 33 drives the second locking rod 32 to move downward, the second locking rod 32 retracts from the door body 2, causing the top of the rod 311 to retract from the door body 2 and move downward. The limiting part 312 can abut against the upper part of the limiting wall 21 to support the rod 311 within the through hole 201.

[0106] By providing a limiting part 312 on the periphery of the rod 311 and making it protrude, the limiting part 312 can form a mechanical limiting structure with the limiting wall 21 extending from the side wall inside the through hole 201 of the door body 2. When the driving member 33 drives the second locking rod 32 to move downward, and the top of the first locking rod 31 exits the door body 2 and moves downward, the limiting part 312 can just abut against the upper part of the limiting wall 21. This not only ensures that the first locking rod 31 can be reliably supported in the through hole 201 in the vertical direction, but also avoids the problem of the first locking rod 31 accidentally moving or falling off due to vibration, external impact, etc., thereby ensuring the stability of the locking of the door body 2. On the other hand, the limiting wall 21 can abut against the limiting part 312 to limit the height of the first locking rod 31. By setting the height position of the limiting wall 21, the maximum downward displacement of the rod 311 can be limited, preventing the rod 311 from extending out of the door body 2 from the lower end of the through hole 201, so as to avoid damage to the first locking rod 31 and affect the locking process. Furthermore, it can also prevent the rod 311 from extending into the lower wall 12 below the door body 2 after it extends into the door body 2, thus preventing the door body 2 from forming a locking structure with the lower wall 12 in the unlocked state, which can effectively improve the durability and reliability of the door lock assembly 3.

[0107] like Figure 3 As shown, in some embodiments, the limiting portion 312 can be an annular structure. The annular limiting portion 312 can be arranged around the circumference of the rod 311. The limiting wall 21 can be configured as an annular structure, and the annular limiting wall 21 can be arranged around the side wall of the through hole 201. In this way, the contact area between the limiting portion 312 and the limiting wall 21 can be increased, thereby improving the stability of the limiting structure between the first rod 311 and the limiting wall 21.

[0108] It should be noted that in some other embodiments, the limiting part 312 may be a discontinuous annular structure or a protrusion structure of other shapes.

[0109] In some embodiments, multiple limiting portions 312 may be provided. Correspondingly, multiple limiting walls 21 may also be provided, with multiple limiting walls 21 corresponding to one limiting portion 312, which can further improve the stability and durability of the limiting structure between the first rod 311 and the limiting wall 21.

[0110] Figure 10 for Figure 3 A schematic diagram of the first reinforcing member.

[0111] like Figure 3 and Figure 10 As shown, in some embodiments, a first reinforcing member 22 may be provided inside the top of the door body 2. By providing a first reinforcing member 22 inside the top of the door body 2, the first reinforcing member 22 can improve the mechanical strength of the top of the door body 2. When the door body 2 is subjected to external forces, such as collisions during transportation or vibrations during the operation of the refrigeration device, the first reinforcing member 22 can effectively disperse and bear these external forces, reducing the risk of deformation and damage to the top of the door body 2.

[0112] like Figure 3 As shown, in some embodiments, the upper end of the through hole 201 may be formed within the first reinforcing member 22. The limiting wall 21 may be disposed within the first reinforcing member 22.

[0113] When the limiting wall 21 abuts against the limiting part 312, thereby restricting the height displacement of the second locking rod 32, the limiting wall 21 needs to withstand the pressure and friction from the limiting part 312. By placing the limiting wall 21 inside the first reinforcing member 22, the reinforcing member provides support during the abutment process between the limiting wall 21 and the limiting part 312, preventing the limiting wall 21 from deforming or being damaged due to excessive force, thereby improving the reliability of the limiting structure between the door body 2 and the second locking rod 32.

[0114] like Figure 10 As shown, in some embodiments, the first reinforcing member 22 may be configured as a corner bracket structure. The first reinforcing member 22 may include a vertically arranged lateral extension 221 and a vertical extension 222.

[0115] like Figure 4 As shown, in some embodiments, a second reinforcing member 23 may be provided inside the bottom of the door body 2. The lower end of the through hole 201 may be formed inside the second reinforcing member 23. A first reinforcing member 22 and a second reinforcing member 23 may be provided at the upper and lower ends of the door body 2, respectively. The upper end of the through hole 201 may be formed inside the first reinforcing member 22, and the lower end of the through hole 201 may be formed inside the second reinforcing member 23. That is, the upper and lower ends of the rod 311 are respectively inserted into the first reinforcing member 22 and the second reinforcing member 23, which can reduce the wear between the rod 311 and the door body 2 during the up and down movement. At the same time, the first reinforcing member 22 and the second reinforcing member 23 can improve the overall strength of the door body 2.

[0116] In some other embodiments, the limiting wall 21 may be disposed within the first reinforcing member 22. Correspondingly, the limiting part 312 may be disposed on the rod body 311 near the lower end.

[0117] like Figure 3 and Figure 8 As shown, in some embodiments, the upper wall portion 11 includes a first front baffle 111. The first front baffle 111 may be disposed on the front side of the housing 1 and located above the door 2. A first locking rod 31 may extend into the upper wall portion 11, and the front side of the first locking rod 31 may abut against the back side of the first front baffle 111.

[0118] In some embodiments, the upper wall portion 11 may include an upper frame (not shown in the figures). The upper frame may extend from the peripheral edge of the first front baffle 111 toward the interior of the housing 1. Thus, the first front baffle 111 and the upper frame may form a frame structure, and the upper frame and the first front baffle 111 enclose a first mounting space 102.

[0119] like Figure 3 and Figure 8 As shown, in some embodiments, the upper wall portion 11 includes a first base plate 112. The first base plate 112 may be part of the upper frame. The first base plate 112 extends from the bottom of the first front baffle 111 toward the side where the housing 1 is located. The first base plate 112 may be provided with a lock hole 104. The lock hole 104 may be arranged corresponding to the upper end of the through hole 201. The top end of the first locking rod 31 can extend out of the top surface of the door body 2 and extend into the base plate through the lock hole 104, so that the first locking rod 31 is engaged with the base plate.

[0120] The top of the first locking rod 31 extends beyond the top surface of the door body 2 and can then be inserted into the first base plate 112 through the lock hole 104 to engage with the base plate. Horizontally, the first locking rod 31 abuts against the side wall of the first base plate 112, preventing the door body 2 from moving horizontally. Furthermore, when the door body 2 is subjected to external forces, such as collisions or vibrations, the engagement of the first locking rod 31 with the base plate resists these forces, preventing the door body 2 from separating from the housing 1, thus enhancing the stability of the connection between the door body 2 and the housing 1.

[0121] In some embodiments, the upper wall portion 11 may be provided with a locking structure (not shown in the figure) that engages with the first locking rod 31. For example, the upper wall portion 11 may be provided with a locking hole, a hook, or other structure, so that after the first locking rod 31 extends into the upper wall portion 11, it can engage with the locking structure, thereby further strengthening the limiting effect of the first locking rod 31 on the upper wall portion 11 under locking action, and thus improving the reliability and robustness of the door 2 during the locking process.

[0122] like Figure 4 and Figure 9 As shown, in some embodiments, the lower wall portion 12 may include a second front baffle 121. The second front baffle 121 may be disposed on the front side of the housing 1 and located below the door 2. The second front baffle 121 may have multiple ventilation openings, allowing airflow to enter the compressor chamber and dissipate heat from the heat-generating components inside the compressor chamber.

[0123] In some embodiments, the lower wall portion 12 may include a lower frame (not shown in the figures). The lower frame may extend from the peripheral edge of the second front baffle 121 toward the interior of the housing 1. Thus, the second front baffle 121 and the lower frame may form a frame structure, and the upper frame and the second front baffle 121 may enclose a second mounting space 103.

[0124] like Figure 4 and Figure 9 As shown, in some embodiments, the lower wall portion 12 includes a second top plate 122. The second top plate 122 may be part of the lower frame. The second top plate 122 may extend along the side of the housing 1 from the top of the second front baffle 121. The second top plate 122 may be provided with a connecting hole 105. The connecting hole 105 may be arranged corresponding to the lower end of the through hole 201. When the driving member 33 drives the second locking rod 32 to move upward, the second locking rod 32 can extend out of the top plate through the connecting hole 105 and extend into the through hole 201.

[0125] The top end of the second locking rod 32 extends out of the second top plate 122 through the connecting hole 105, and can continue to move upward under the drive of the driving member 33 and extend into the door body 2 through the lower end of the through hole 201 on the bottom surface of the door body 2. The top end of the second locking rod 32 can abut against the bottom of the door body 2 to form a locking structure between the second locking rod 32 and the bottom of the door body 2, thereby preventing the lower end of the door body 2 from moving in the horizontal direction. Moreover, when the door body 2 is subjected to external forces, such as collisions or vibrations, the locking between the second locking rod 32 and the second top plate 122 can resist these external forces and prevent the door body 2 from separating from the box body 1, thereby enhancing the stability of the connection between the door body 2 and the box body 1.

[0126] Figure 11 for Figure 2 A schematic diagram of the central door lock assembly.

[0127] like Figure 11 As shown, in some embodiments, the locking assembly may include a transmission rod 34. One end of the transmission rod 34 may be pivotally connected to a second locking rod 32. The other end of the transmission rod 34 may be driveably connected to a drive member 33. The drive member 33 is capable of driving the transmission rod 34 to rotate in a first direction or a second direction, the first direction being opposite to the second direction.

[0128] Specifically, one end of the transmission rod 34 is pivotally connected to the second locking rod 32, so that the transmission rod 34 and the second locking rod 32 can rotate relative to each other around a certain axis, and thus when the driving member 33 drives the transmission rod 34 to rotate, the second locking rod 32 can move linearly.

[0129] In some embodiments, the first direction can be counterclockwise rotation, and correspondingly, the second direction can be clockwise rotation.

[0130] When the driving component 33 drives the transmission rod 34 to rotate in the first direction, the transmission rod 34 can drive the second locking rod 32 to move upward along the height direction of the door body 2;

[0131] When the driving member 33 drives the transmission rod 34 to rotate in the second direction, the transmission rod 34 can drive the second locking rod 32 to move downward along the height direction of the door body 2.

[0132] A transmission rod 34 is provided between the driving member 33 and the second locking rod 32. One end of the transmission rod 34 is pivotally connected to the second locking rod 32. The transmission rod 34 converts the rotational motion of the driving member 33 into the linear motion of the second locking rod 32, thereby driving the second locking rod 32 to move up and down along the height direction of the door body 2. Moreover, the driving member 33 can drive the transmission rod 34 to rotate in both directions, thereby controlling the up and down movement of the second locking rod 32. This allows the transmission rod 34 to change its rotation direction as needed, thus controlling the movement of the second locking rod 32 in different directions.

[0133] like Figure 5 and Figure 11 As shown, in some embodiments, the door lock assembly 3 may include a lock cylinder 35. The lock cylinder 35 may be disposed between the drive member 33 and the transmission rod 34. The lower frame may include a second side plate 123. The second side plate 123 may be disposed on one side of the second top plate 122. The lock cylinder 35 may be disposed on the second side plate 123, and the second side plate 123 may have a keyhole (not shown in the figure). The door lock key 36 may extend into the door lock assembly 3 through the keyhole and be connected to the lock cylinder 35, thereby driving the second locking rod 32 and the first locking rod 31 to move by driving the lock cylinder 35.

[0134] By placing the keyhole and lock cylinder 35 on the second side plate 123, the door lock assembly 3 can be concealed, which can further improve the anti-theft performance.

[0135] Figure 12 for Figure 2 Exploded view of the installation of the lower middle wall and roller assembly; Figure 13 for Figure 12 Schematic diagram of the middle roller assembly; Figure 14 for Figure 13 A schematic diagram of the roller assembly from another perspective.

[0136] like Figure 12 As shown, in some embodiments, the second top plate 122 is provided with a mounting opening 107. The mounting opening 107 can be located near the connecting hole 105. The roller assembly 4 is located at the mounting opening 107. By providing a mounting opening 107 on the second top plate 122, the roller assembly 4 can be installed at the mounting opening 107, and the arrangement of the roller assembly 4 can improve the smoothness of closing the door.

[0137] like Figure 4 As shown, in some embodiments, the second top plate 122 and the bottom surface of the door 2 may be spaced apart to form a gap 106. The roller assembly 4 may include a mounting housing 41, which is connected to the side wall of the mounting opening 107. The roller assembly 4 includes a roller 42. The roller 42 is rotatably disposed within the mounting housing 41, with a portion of the roller 42 extending to the gap 106, and the roller 42 is used for sliding contact with the bottom surface of the door 2.

[0138] The mounting housing 41 provides a mounting structure for the roller 42 and serves as a support structure for the roller 42. The mounting housing 41 is connected to the side wall of the mounting opening 107, allowing the roller 42 to be relatively fixed on the second top plate 122. Furthermore, the roller 42 is rotatably disposed within the mounting housing 41, with a portion of the roller 42 extending to the gap 106. When the door 2 is opened or closed, the roller 42 can slide against the bottom surface of the door 2, supporting and guiding the movement of the door 2, making the opening and closing of the door 2 smoother. Even if the door 2 sags due to problems with the hinge structure or its own weight, the roller assembly 4 improves the smoothness of closing the door 2 and reduces noise and wear during the opening and closing process.

[0139] In some embodiments, since the connecting hole 105 is usually far away from the hinge between the door body 2 and the housing 1, by setting the mounting port 107 close to the connecting hole 105, when the door body 2 sags and affects the closing performance, the roller 42 can more effectively support and guide the closing of the lower end of the door body 2, thereby improving the closing performance of the door body 2.

[0140] In some embodiments, the connection between the mounting shell 41 and the side wall of the mounting port 107 can be achieved by welding, bolting, snap-fitting, or other methods.

[0141] like Figure 13 and Figure 14 As shown, in some embodiments, the top peripheral sidewall of the mounting shell 41 may be provided with a supporting flange 43. The supporting flange 43 is provided on the second top plate 122. The supporting flange 43 is supported on the peripheral edge of the mounting opening 107. Specifically, by providing a supporting flange 43 on the mounting shell 41 body that contacts the peripheral edge of the mounting opening 107, the supporting flange 43 can be provided on the second top plate 122, thereby providing support for the mounting shell 41. This helps maintain the installation stability of the mounting shell 41 and prevents it from falling or shifting due to gravity or other external forces.

[0142] like Figure 13 and Figure 14As shown, in some embodiments, the support flange 43 can be arranged around the top peripheral sidewall of the mounting shell 41 to form a ring structure, which can improve the installation stability and reliability of the mounting shell 41.

[0143] like Figure 13 and Figure 14 As shown, in some embodiments, the top peripheral wall of the mounting shell 41 may be provided with a snap-fit ​​groove 401. The snap-fit ​​groove 401 may be located below the supporting flange 43. The peripheral edge of the mounting opening 107 may snap into the snap-fit ​​groove 401. Specifically, by providing the snap-fit ​​groove 401 on the top peripheral wall of the mounting shell 41, the peripheral edge of the mounting opening 107 snaps into the snap-fit ​​groove 401, and in conjunction with the structure of the supporting flange 43, the mounting shell 41 is fixed and positioned in both vertical and horizontal directions. On the other hand, the snap-fit ​​structure between the mounting shell 41 and the lower wall 12 simplifies the installation structure of the roller assembly 4. Compared with bolt fixing, no additional fasteners are required, thereby reducing installation steps and improving installation efficiency; compared with welding fixing, it can prevent welding deformation and stress concentration, ensuring the accuracy and stability of the mounting shell 41.

[0144] like Figure 13 As shown, in some embodiments, the snap-fit ​​groove 401 may include two. The two snap-fit ​​grooves 401 may be provided on opposite sides of the mounting housing 41. The opposite sides of the peripheral edge of the mounting opening 107 may respectively snap into the two snap-fit ​​grooves 401.

[0145] Specifically, two snap-fit ​​grooves 401 are provided on the mounting shell 41, located on opposite sides of the mounting shell 41. When the peripheral edges of the mounting opening 107 are respectively snapped into these two snap-fit ​​grooves 401, a double snap-fit ​​structure is formed, further enhancing the installation stability of the mounting shell 41 and the lower wall 12. For example, when the roller assembly 4 provides support for the door 2 during closing, the double snap-fit ​​can effectively prevent the mounting shell 41 from shifting or shaking under external forces, keeping the mounting shell 41 in the correct installation position.

[0146] In some embodiments, the card slot 401 may be configured as two or more.

[0147] like Figure 13 and Figure 14 As shown, in some embodiments, the peripheral sidewall of the mounting housing 41 may be provided with a first inclined surface 44. The upper end of the first inclined surface 44 is disposed near the support flange 43. A snap-fit ​​groove 401 is formed between the first inclined surface 44 and the support flange 43. In the top-to-bottom direction, the first inclined surface 44 extends toward the peripheral sidewall away from the mounting housing 41.

[0148] The snap-fit ​​groove 401 can be formed between the first inclined surface 44 and the supporting protrusion 43. When the peripheral edge of the mounting opening 107 is snapped into the snap-fit ​​groove 401, that is, the peripheral edge of the mounting opening 107 is clamped between the first inclined surface 44 and the supporting protrusion 43. By providing the first inclined surface 44 on the peripheral sidewall of the mounting shell 41, the first inclined surface 44 can provide a good guide for the installation process of the mounting shell 41. When installing the mounting shell 41, the operator only needs to align the peripheral edge of the mounting opening 107 with the position of the snap-fit ​​groove 401, and then gently press down on the mounting shell 41. The first inclined surface 44 can guide the peripheral edge of the mounting opening 107 to smoothly snap into the snap-fit ​​groove 401, thereby reducing the difficulty of installation and improving the accuracy and efficiency of installation.

[0149] like Figure 13 and Figure 14 As shown, in some embodiments, the side of the first inclined surface 44 facing the snap-fit ​​groove 401 may be provided with a plurality of anti-slip ribs 46. The plurality of anti-slip ribs 46 are arranged at intervals, which can improve the snap-fit ​​stability between the periphery of the mounting opening 107 and the mounting shell 41.

[0150] In some embodiments, the peripheral sidewall of the mounting housing 41 may be provided with a second inclined surface 45. The second inclined surface 45 may be provided on the side of the first inclined surface 44 away from the snap-fit ​​groove 401. The upper end of the second inclined surface 45 may be connected to the first inclined surface 44, and the lower end of the second inclined surface 45 may be connected to the peripheral sidewall of the mounting housing 41. In the top-to-bottom direction, the first inclined surface 44 extends toward the peripheral sidewall of the mounting housing 41.

[0151] Since the second inclined surface 45 is located on the side of the first inclined surface 44 away from the snap-fit ​​groove 401, when the mounting shell 41 is installed on the upper wall 11, the peripheral edge of the mounting opening 107 contacts the second inclined surface 45 first. The inclined setting of the inclined surface can not only guide the installation process, but also reduce the frictional resistance during the installation process, thereby improving efficiency.

[0152] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of this application is limited only by the appended claims.

Claims

1. A refrigeration apparatus, characterized by comprising: The application relates to a refrigeration device, which comprises a box body forming an outer shell of the refrigeration device, wherein the box body is provided with a refrigeration compartment; a door body is arranged on the front side of the box body, one side of the door body is rotationally connected with the box body, and the door body is used for opening and closing the refrigeration compartment; the door body is provided with a through hole, the through hole is arranged along the height direction of the door body, the upper end of the through hole penetrates the top surface of the door body, and the lower end of the through hole penetrates the bottom surface of the door body; an upper wall part is arranged on the front side of the box body and above the door body; a lower wall part is arranged on the front side of the box body and below the door body; a door lock assembly comprises: a first lock rod movably arranged in the through hole, the first lock rod can move up and down along the height direction of the through hole; a second lock rod movably arranged in the lower wall part; a driving member in transmission connection with the second lock rod, the driving member is used for driving the second lock rod to move up and down along the height direction of the door body; when the driving member drives the second lock rod to move upwards, the top end of the second lock rod can extend into the through hole from the bottom surface of the door body, the top end of the second lock rod abuts against the first lock rod, so as to drive the first lock rod to move upwards along the through hole, the top end of the first lock rod can extend out of the top surface of the door body and extend into the upper wall part; when the driving member drives the second lock rod to move downwards, the second lock rod can exit the door body, the first lock rod moves downwards along the through hole, so that the top end of the first lock rod is separated from the upper wall part.

2. The refrigeration device according to claim 1, wherein the first lock rod comprises: a rod body arranged in the through hole along the height direction of the door body; a limiting part arranged on the circumferential side of the rod body and protruded relative to the circumferential side of the rod body; the door body comprises a limiting wall arranged in the through hole, the limiting wall is arranged on the side of the through hole extending towards the rod body; when the driving member drives the second lock rod to move downwards, the second lock rod exits the door body so that the top of the rod body exits the door body and moves downwards, the limiting part can abut against the upper side of the limiting wall, so as to support the rod body in the through hole.

3. The refrigeration device according to claim 2, wherein a first reinforcing member is arranged in the top of the door body, and the upper end of the through hole is formed in the first reinforcing member; the limiting wall is arranged in the first reinforcing member.

4. The refrigeration device according to claim 1, wherein the upper wall part comprises: a first front baffle arranged on the front side of the box body and above the door body; a first bottom plate arranged along the side of the first front baffle extending towards the box body, the first bottom plate is provided with a lock hole corresponding to the upper end of the through hole; the top end of the first lock rod can extend out of the top surface of the door body and extend into the first bottom plate through the lock hole, so that the first lock rod is clamped with the bottom plate.

5. The refrigeration device according to claim 1, wherein the lower wall part comprises: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ A second front baffle is arranged on the front side of the cabinet and below the door body; A second top plate is arranged on the top of the second front baffle and extends towards the side where the cabinet is located. The second top plate is provided with a communication hole corresponding to the lower end of the through hole. When the driving member drives the second lock rod to move upwards, the second lock rod can extend out of the second top plate through the communication hole and into the through hole.

6. The refrigeration device according to claim 5, characterized in that, The lock assembly further comprises a transmission rod, one end of the transmission rod is pivotally connected with the second lock rod, and the other end of the transmission rod is in transmission connection with the driving member; The driving member can drive the transmission rod to rotate in a first direction or a second direction, the first direction being opposite to the second direction; When the driving member drives the transmission rod to rotate in the first direction, the transmission rod can drive the second lock rod to move upwards along the height direction of the door body; When the driving member drives the transmission rod to rotate in the second direction, the transmission rod can drive the second lock rod to move downwards along the height direction of the door body.

7. The refrigeration device according to claim 6, characterized in that, The second top plate is arranged in a spaced manner with the bottom surface of the door body to form a gap, and the second top plate is provided with a mounting opening arranged close to the communication hole; The refrigeration device further comprises a roller assembly arranged at the mounting opening, and the roller assembly comprises: A mounting shell connected with the side wall of the mounting opening; A roller rotatably arranged in the mounting shell, part of the roller extending to the gap, and the roller being used to slide with the bottom surface of the door body.

8. The refrigeration device according to claim 7, characterized in that, The top circumferential wall of the mounting shell is provided with a supporting protrusion arranged on the second top plate, and the supporting protrusion is supported on the circumferential edge of the mounting opening; The top circumferential wall of the mounting shell is provided with a clamping groove arranged below the supporting protrusion, and the circumferential edge of the mounting opening is clamped in the clamping groove.

9. The refrigeration device according to claim 8, characterized in that, The circumferential wall of the mounting shell is provided with a first inclined surface, the upper end of the first inclined surface being arranged close to the supporting protrusion, and the first inclined surface and the supporting protrusion forming the clamping groove therebetween; in the direction from top to bottom, the first inclined surface extends and is arranged away from the circumferential wall of the mounting shell.

10. A refrigeration apparatus characterized by comprising: Comprise: A cabinet forming an outer shell of the refrigeration device, the cabinet being provided with a refrigeration compartment; A door body arranged on the front side of the cabinet, one side of the door body being in rotational connection with the cabinet for opening and closing the refrigeration compartment; the door body is provided with a through hole extending and arranged along the height direction of the door body, the upper end of the through hole penetrating the top surface of the door body, and the lower end of the through hole penetrating the bottom surface of the door body; An upper wall arranged on the front side of the cabinet and above the door body; A lower wall arranged on the front side of the cabinet and below the door body; A door lock assembly, the door lock assembly comprising: A first locking rod movably arranged in the through hole, the first locking rod being capable of moving up and down along the height direction of the through hole; A second locking rod movably arranged in the upper wall portion; A driving member in driving connection with the second locking rod, the driving member being used to drive the second locking rod to move up and down along the height direction of the door body; When the driving member drives the second locking rod to move downward, the bottom end of the second locking rod is capable of extending into the through hole from the top surface of the door body, the bottom end of the second locking rod abuts against the first locking rod to drive the first locking rod to move downward along the through hole, and the bottom end of the first locking rod is capable of extending out of the bottom surface of the door body and into the lower wall portion; When the driving member drives the second locking rod to move upward, the second locking rod is capable of exiting the door body, and the first locking rod moves upward along the through hole to separate the bottom end of the first locking rod from the lower wall portion.

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