Display case

Abstract

This utility model provides a display cabinet, including a cabinet body, a door, a mounting base, and a roller assembly. The cabinet body has a storage chamber. The mounting base is movably located on the front side of the cabinet body and below the door, and can move up and down along the height of the cabinet body. The mounting base has a first adjustment hole extending along the height of the cabinet body. The top of the roller assembly is supported on the bottom of the door body. A first fixing hole is provided on the front side of the cabinet body. The display cabinet includes a first fixing member movably inserted into the first adjustment hole and the first fixing hole, and can be locked and fixed at the first fixing hole. When the mounting base moves up and down along the height of the cabinet body, the mounting base can drive the roller assembly to move up and down to adjust the height of the roller assembly, and the first fixing member can move up and down relative to the first adjustment hole so that the first fixing member can be fixed at the corresponding height of the first adjustment hole. This application can adapt to different door sagging situations by adjusting the height of the mounting base.

Description

Technical Field

[0001] This utility model relates to the field of storage device technology, and mainly to a display cabinet. 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] As display cabinets are designed to showcase items inside refrigerated rooms, their doors are typically made of glass. However, the weight of glass doors can cause them to sag after prolonged opening and closing. This can lead to interference between the door and the locking or support components at the top and bottom of the cabinet, making it impossible to open and close the door properly. When the door sags, it forms an angle with the cabinet, affecting the final display image and also impacting the overlap between the door seal and the cabinet, thus affecting the door's airtightness.

[0004] Currently, the main solution is to install pads on the door supports. These pads support the bottom of the glass door, preventing it from sagging and thus ensuring a tight closure. However, with prolonged use, the sagging can worsen, increasing the contact between the door and the door supports, which can still lead to the glass door failing to close. Utility Model Content

[0005] The purpose of this utility model is to provide a display cabinet that can adjust the support position between the roller assembly and the door by adjusting the height of the mounting base, thereby adapting to different door sagging conditions.

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

[0007] One aspect of this application provides a display cabinet, including a cabinet body forming the outer shell of the display cabinet; a storage chamber provided inside the cabinet body; a door body disposed on the front side of the cabinet body, one side of the door body being rotatably connected to the cabinet body for opening and closing the storage chamber; a mounting base movably disposed on the front side of the cabinet body and located below the door body, the mounting base being movable up and down along the height direction of the cabinet body; the mounting base having a first adjustment hole extending along the height direction of the cabinet body; and a roller assembly disposed within the mounting base, the top of the roller assembly protruding from the top of the mounting base. The roller assembly is used to support the bottom of the door body; wherein, the front side of the cabinet body is provided with a first fixing hole; the display cabinet includes a first fixing member, which is movably inserted into the first adjustment hole and the first fixing hole, and can be locked and fixed at the first fixing hole; when the mounting base moves up and down along the height direction of the cabinet body, the mounting base can drive the roller assembly to move up and down to adjust the height of the roller assembly, and the first fixing member can move up and down relative to the first adjustment hole so that the first fixing member can be fixed at the corresponding height of the first adjustment hole.

[0008] The above technical solution has the following advantages or beneficial effects: By movably setting the mounting base on the front side of the cabinet and below the door, a mounting base is provided for the roller assembly, driving the roller assembly to move up and down. The roller assembly is located inside the mounting base and protrudes at the top, allowing it to directly contact the bottom of the door, thus supporting the door. The first adjustment hole extends along the height direction of the cabinet on the mounting base, and the first fixing member is movably inserted into the first adjustment hole and the first fixing hole on the front side of the cabinet, allowing the first fixing member to move within the first adjustment hole when the height of the mounting base and roller assembly is adjusted, providing space and flexibility for height adjustment of the mounting base. When the door sags due to long-term use, the user can loosen the first fixing member and move the mounting base up and down, thereby driving the roller assembly to move upward along the height direction of the cabinet to compensate for the sagging distance. After moving to the appropriate position, the first fixing member locks in place at the first fixing hole, fixing the mounting base and roller assembly at the current height. In this way, even if the door sags to varying degrees during long-term use of the refrigeration unit, the height of the roller assembly can be adjusted by flexibly adjusting the mounting base, so that the roller assembly always firmly supports the bottom of the door, avoiding interference between the door and the locking or support components at the top and bottom of the cabinet, and ensuring that the door can be opened and closed normally.

[0009] In some embodiments of this application, a display cabinet is provided, the display cabinet further comprising a support member, the support member being rotatably disposed below the mounting base, the peripheral sidewall of the support member being provided with a plurality of support surfaces, each support surface being at a different distance from the rotation axis of the support member; when the support member rotates, the support surface located at the top of the support member can abut against the bottom of the mounting base.

[0010] Another technical solution described above has the following advantages or beneficial effects: the support member is rotatably disposed below the mounting base. The support member has multiple support surfaces on its peripheral sidewalls. When the support member rotates, the support surface at the top of the support member abuts against the bottom of the mounting base, thus providing support. The distances between each support surface and the rotation axis of the support member are different. By rotating the support member, different support surfaces can be used to abut against the mounting base, thereby supporting the mounting base at the corresponding height and providing more stable support.

[0011] In some embodiments of this application, a display cabinet is provided, wherein the distance between the plurality of supporting surfaces and the rotation axis of the supporting member increases sequentially along a rotation direction of the supporting member; the bottom of the mounting base is provided with a positioning groove; the supporting surface is provided with a positioning part; when the supporting surface abuts against the bottom of the mounting base, the positioning part can be arranged in the positioning groove and abut against the groove wall of the positioning groove.

[0012] Another technical solution described above has the following advantages or beneficial effects: Because the distance between the support surface and the rotation axis increases sequentially, a continuous height change sequence is formed. When the operator rotates the support component in a specific direction, the distance between the support surface and the rotation axis gradually increases, thus providing a progressively increasing support height for the mounting base, greatly reducing the operator's operational difficulty. Furthermore, through the cooperation between the positioning part and the positioning groove, the positioning part is restricted by the groove wall within the positioning groove, effectively preventing relative sliding or wobbling between the support surface and the mounting base, allowing for a more stable connection structure between the support component and the mounting base.

[0013] In some embodiments of this application, a display cabinet is provided, wherein a second fixing hole is provided on the front side of the cabinet body; the display cabinet further includes a second fixing member, which passes through the rotation axis of the support member and can be locked at the second fixing hole; the support member can rotate relative to the second fixing member.

[0014] Another technical solution described above has the following advantages or beneficial effects: By providing a second fixing hole on the front side of the cabinet, and having the second fixing member pass through the rotation axis of the support member and lock it in the second fixing hole, the user can fix the support member to the cabinet through the second fixing member after adjusting the height of the fixing seat. When the second fixing member is not tightened on the support member and the positioning part is disengaged from the positioning groove, the support member can rotate relative to the second fixing member. When the second fixing member is tightened on the support member, the support member can be firmly fixed to the front side of the cabinet. Thus, the support member can be firmly fixed to the cabinet through the second fixing member and can also rotate relative to the second fixing member.

[0015] In some embodiments of this application, a display cabinet is provided. The first fixing member includes a rotating shaft passing through the first adjusting hole and the first fixing hole; a limiting part disposed on one end of the rotating shaft, the limiting part being located in the first adjusting hole and capable of moving up and down relative to the height direction of the first adjusting hole; and a limiting end disposed on the end of the rotating shaft away from the limiting part, the limiting end being capable of abutting against the peripheral edge of the first adjusting hole, so that the first fixing member is fixed at the corresponding height.

[0016] Another technical solution described above has the following advantages or beneficial effects: By setting a limiting part on the rotating shaft, the limiting part is located inside the first adjusting hole, so that the fixed seat can be constrained by the limiting part when it moves up and down relative to the cabinet, thereby preventing the fixed seat from loosening or shifting during the up and down movement. The limiting end is located outside the first adjusting hole. When the operator moves the fixed seat to the corresponding height, they can rotate the first fixing member to tighten it onto the fixed seat. When the limiting end abuts against the side edge, the first fixing member is fixed at the corresponding height, thereby fixing the position of the fixed seat.

[0017] In some embodiments of this application, a display cabinet is provided, wherein the mounting base is provided with a second adjustment hole, the second adjustment hole extending along the height direction of the cabinet body; a third fixing hole is provided on the front side of the cabinet body; the display cabinet further includes a third fixing member, the third fixing member being movably inserted into the third fixing hole and the second adjustment hole, the third fixing member being able to move up and down relative to the second adjustment hole, and being able to be locked and fixed at the third fixing hole.

[0018] Another technical solution described above has the following advantages or beneficial effects: by locking the mounting base with the third fastener, the mounting base can be firmly fixed to the cabinet, preventing it from shaking or shifting during use. Furthermore, in conjunction with the locking action of the first fastener, the support member provides a more stable support for the mounting base, and the third fastener reinforces the mounting base, making the support between the roller assembly and the door more reliable.

[0019] In some embodiments of this application, a display cabinet is provided, wherein the mounting base has a through hole arranged along the height direction of the cabinet; the roller assembly includes a support frame, which is movably inserted into the through hole and can move up and down along the through hole; rollers are rotatably disposed on the support frame; and an elastic member is sleeved on the support frame, the lower end of the elastic member abutting against the mounting base and the upper end of the elastic member abutting against the support frame.

[0020] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: the elastic element is sleeved on the support frame, with its lower end abutting against the mounting base and its upper end abutting against the support frame. When the roller supports the bottom of the door and the door is subjected to external force, the support frame can move up and down in the perforation. The elastic element will compress or stretch according to the force. The adaptive adjustment of the elastic element helps the door to return to the appropriate position and can also play a buffering and shock-absorbing role in the use of the door, making the door more stable during operation.

[0021] In some embodiments of this application, a display cabinet is provided. The mounting base includes a connecting plate connected to the front side of the cabinet body; the connecting plate is provided with the first adjustment hole; a first side plate is disposed on one side of the connecting plate, extending from one side of the connecting plate toward the front side of the cabinet body; a second side plate is disposed on the other side of the connecting plate, spaced apart from the first side plate, extending from the other side of the connecting plate toward the front side of the cabinet body; the second side plate, the first side plate, and the connecting plate enclose a mounting cavity, and a roller assembly is installed in the mounting cavity; the top of the second side plate, the first side plate, and the connecting plate forms an upper opening, which communicates with the mounting cavity; the top of the roller protrudes through the upper opening and is disposed outside the top of the mounting base.

[0022] Another technical solution described above has the following advantages or beneficial effects: the second side plate, the first side plate, and the connecting plate together form a mounting cavity, which can provide a relatively stable and independent space for the roller assembly. An upper opening is formed at the top of the mounting base, and this upper opening communicates with the mounting cavity. The top of the roller protrudes from the upper opening and is located outside the top of the mounting base. Thus, the roller can extend out of the mounting base from the upper opening and abut against the bottom of the door. When the door is closed in front of the cabinet, the roller can directly contact the door and provide support and guidance. During the movement of the door, the roller can rotate with the door, making the door movement smoother.

[0023] In some embodiments of this application, a display cabinet is provided, wherein the mounting base is provided with a limiting hole that extends along the height direction of the cabinet; the roller is provided with a rotating shaft that is located on the axis of the roller, the rotating shaft is rotatably mounted on the support frame and passes through the limiting hole, and the rotating shaft can move up and down along the limiting hole.

[0024] Another technical solution described above has the following advantages or beneficial effects: the limiting hole extends along the height direction of the cabinet, and the rotating shaft of the roller passes through the limiting hole and can move up and down within it. The limiting hole guides the movement of the rotating shaft, restricting its movement to the height direction and preventing the roller from swaying left and right or deviating from its predetermined trajectory during movement. Simultaneously, during door movement, due to varying user force or door sagging, the door may impact the roller. The limiting hole restricts excessive movement of the rotating shaft, preventing the roller from detaching from the support frame or colliding with other components due to excessive force, thus improving the reliability of the roller assembly's support for the door.

[0025] In some embodiments of this application, a display cabinet is provided, wherein the mounting base is provided with a first lock hole; the display cabinet further includes a locking component, the locking component including: a base plate, disposed at the bottom of the door; an extension plate, extending downward from one side of the base plate, the extension plate being provided with a second lock hole; the door rotating can drive the base plate and the extension plate to move, and when the door closes the storage chamber, the first lock hole and the second lock hole are correspondingly connected.

[0026] Another technical solution described above has the following advantages or beneficial effects: the extension plate is located on the side of the base plate near the free end of the door and extends downwards. When the door rotates, it moves the base plate and the extension plate. When the door closes, the door moves the locking element, causing the extension plate to align with the second lock hole of the mounting base. The first and second lock holes automatically connect. When locking the door, simply insert the lock into the connected lock hole to connect the locking element to the mounting base, thus fixing the door to the cabinet in the closed state. Furthermore, the combination of the mounting base and the locking element also provides a door-locking function. This locking structure eliminates the need for a complex lock structure on the cabinet or door, reducing the complexity of locking the door structure and improving the structural compactness of the display cabinet. 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 display cabinet according to an embodiment of this application;

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

[0030] Figure 3 for Figure 1 A partial exploded view;

[0031] Figure 4 for Figure 3 Installation diagram of the mounting base and roller assembly;

[0032] Figure 5 for Figure 4 A diagram of the back of the building;

[0033] Figure 6 for Figure 4 Schematic diagram of the central support component;

[0034] Figure 7 for Figure 4 An exploded view;

[0035] Figure 8 for Figure 7 A schematic diagram of the first fixing component;

[0036] Figure 9 for Figure 4 A schematic diagram of the mounting bracket;

[0037] Figure 10 for Figure 9 A diagram from another perspective;

[0038] Figure 11 This is a schematic diagram showing the connection between the locking element and the mounting base.

[0039] The correspondence between the reference numerals and the component names is as follows:

[0040] 1. Cabinet body; 101. Storage compartment; 102. First fixing hole; 103. Second fixing hole; 104. Third fixing hole; 11. Door body;

[0041] 2. Mounting base; 201. First adjustment hole; 2021. Inlet / outlet hole; 202. Positioning groove; 203. Second adjustment hole; 204. Through hole; 205. Mounting cavity; 206. Top opening; 207. Limiting hole; 208. First locking hole; 21. Connecting plate; 22. First side plate; 23. Second side plate; 24. Support plate;

[0042] 3. Roller assembly; 31. Support frame; 311. Support rod; 312. First support arm; 311. Second support arm; 32. Roller; 33. Elastic element; 34. Rotating shaft;

[0043] 41. First fixing member; 411. Rotating shaft; 412. Limiting part; 413. Limiting end; 42. Second fixing member; 43. Third fixing member;

[0044] 5. Support component; 51. Support surface; 52. Positioning part;

[0045] 6. Locking component; 601. Second locking hole; 61. Base plate; 62. Extension plate. Detailed Implementation

[0046] This utility model provides a display cabinet. 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.

[0047] 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.

[0048] 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.

[0049] The display cabinet in the embodiments of this utility model can be a refrigerated cabinet such as a freezer or refrigerator, or a heated cabinet.

[0050] Figure 1 This is a schematic diagram of a display cabinet according to an embodiment of this application.

[0051] like Figure 1 As shown, in some embodiments, the display case includes a cabinet body 1, which forms the outer shell of the display case. The cabinet body 1 has a storage chamber 101 inside. The storage chamber 101 can serve as an independent storage space for storing items such as beverages, food, or other goods. The storage chamber 101 may have a front opening (not shown in the figure), allowing users to open the front opening and store items inside.

[0052] Figure 2 for Figure 1 A cross-sectional view.

[0053] like Figure 2 As shown, there can be multiple storage chambers 101, which can serve as independent storage spaces for storing different types of food or goods. These multiple storage chambers 101 can be arranged vertically or horizontally.

[0054] like Figure 2 As shown, in some embodiments, the display case may include a door 11. The door 11 is located on the front side of the cabinet 1, and one side of the door 11 is hinged to the cabinet 1 for opening and closing the storage chamber 101.

[0055] In some embodiments, the display case may be equipped with a refrigeration system (not shown in the figure). The refrigeration system may be located inside the case 1. The refrigeration system is used to provide cold air to the storage chamber 101 to maintain a low-temperature environment in the storage chamber 101.

[0056] In some embodiments, the refrigeration system may include a compressor (not shown in the figures). 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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 cooling of the interior of the cabinet 11.

[0061] Figure 3 for Figure 1 A partial exploded view.

[0062] like Figure 2 and Figure 3 As shown, in some embodiments, the display cabinet may include a roller assembly 3. The roller assembly 3 may be located on the front side of the cabinet body 1 and below the door body 11, and the roller assembly 3 is used to support the bottom of the door body 11. Wherein, the roller assembly 3 is used to support the bottom of the door body 11, and through contact with the bottom of the door body 11, the roller assembly 3 can guide the movement of the door body 11 during the process of closing the storage chamber 101, so that the drooping door body 11 can be smoothly closed on the front side of the storage chamber 101 with the support of the roller assembly 3, and maintain a good overlap between the door seal (not shown in the figure) and the cabinet body, thereby improving the sealing performance of the door body 11.

[0063] Figure 4 for Figure 3 Installation diagram of the mounting base and roller assembly; Figure 5 for Figure 4 A diagram of the back of the structure.

[0064] like Figure 4 and Figure 5As shown, in some embodiments, the display cabinet may include a mounting base 2, which provides a mounting foundation for the roller assembly 3. The mounting base 2 is movably disposed on the front side of the cabinet body 1 and located below the door body 11. The mounting base 2 may be disposed on the side of the door body 11 away from its rotatable connection with the cabinet body 1, and at the bottom of the free end of the door body 11. The roller assembly 3 may be disposed within the mounting base 2, with the top of the roller assembly 3 protruding outside the top of the mounting base 2 to directly contact the bottom of the door body 11, thereby providing support for the door body 11 when it is closed on the front side of the cabinet body 1.

[0065] The mounting base 2 is provided with a first adjustment hole 201 extending along the height direction of the cabinet 1. The front side of the cabinet 1 is provided with a first fixing hole 102, which is connected to the first adjustment hole 201. The display cabinet includes a first fixing member 41, which is movably inserted into the first adjustment hole 201 and the first fixing hole 102, and can be locked and fixed at the first fixing hole 102.

[0066] The mounting base 2 can move up and down along the height direction of the cabinet 1. When the mounting base 2 moves up and down along the height direction of the cabinet 1, the mounting base 2 can drive the roller assembly 3 to move up and down to adjust the height of the roller assembly 3. The first fixing member 41 can move up and down relative to the first adjustment hole 201 so that the first fixing member 41 can be fixed at the corresponding height of the first adjustment hole 201.

[0067] Specifically, by setting the mounting base 2 to be able to move up and down relative to the height of the cabinet 1, the roller assembly 3 can move in the vertical direction of the cabinet 1.

[0068] The first fixing member 41 is movably inserted into the first adjustment hole 201 and the first fixing hole 102. Specifically, the first fixing member 41 is rotatably inserted into the first adjustment hole 201 and the first fixing hole 102. The rotation direction of the first fixing member 41 can include a forward and a reverse direction, and one of the directions is used as the tightening direction. By tightening the first fixing member 41, the mounting base 2 is fixed to the front side of the cabinet 1, thus fixing the mounting base 2 at the corresponding height. In this way, when adjusting the height of the roller assembly 3, the first fixing member 41 can be loosened, and the mounting base 2 and the roller assembly 3 can move freely up and down within the range of the first adjustment hole 201. The operator can intuitively adjust the position of the mounting base 2 and the roller assembly 3 according to the actual drooping of the door 11, without the need for a complicated disassembly and installation process. After adjustment, the first fixing member 41 is locked and fixed, making the operation simple and convenient.

[0069] The first adjustment hole 201 extends along the height direction of the cabinet 1 onto the mounting base 2. The first fixing member 41 is movably inserted into the first adjustment hole 201 and the first fixing hole 102 on the front side of the cabinet 1, allowing the mounting base 2 to be hooked onto the first fixing member 41 through the first adjustment hole 201, thereby pre-fixing the position of the mounting base 2. When the mounting base 2 moves up and down along the height direction of the cabinet 1 to the preset position, the first fixing member 41 can be operated to fix the mounting base 2 onto the cabinet 1. In this way, the mounting base 2 can provide stable and reliable support for the roller assembly 3, allowing the roller assembly 3 to be stably and reliably supported under the door 11.

[0070] Furthermore, as the mounting base 2 moves up and down along the height direction of the cabinet 1, the first fixing member 41 can move relative to the first adjustment hole 201. The arrangement of the first adjustment hole 201 along the height direction of the cabinet 1 can provide adjustment space for the fixing base to move in the height direction, thus avoiding interference between the first fixing member 41 and the fixing base.

[0071] Currently, display cabinets typically use glass doors to showcase items inside refrigerated rooms. However, the weight of the glass door can cause it to sag after prolonged opening and closing. This can lead to interference between the door and the locking or support components at the top and bottom of the cabinet, preventing the door from opening and closing properly. The sag also creates an angle between the door and the cabinet, affecting the overall display and the seal between the door and the cabinet, thus compromising the door's airtightness. Furthermore, with continued use, the sagging will worsen, increasing contact between the door and the support, potentially causing the glass door to fail to close completely.

[0072] In this application, by movably mounting the mounting base 2 on the front side of the cabinet 1 and below the door 11, a mounting base is provided for the roller assembly 3, which then moves up and down. The roller assembly 3 is located inside the mounting base 2 and protrudes at the top, allowing it to directly contact the bottom of the door 11 and support it. The first adjustment hole 201 extends along the height direction of the cabinet 1 onto the mounting base 2. The first fixing member 41 is movably inserted into the first adjustment hole 201 and the first fixing hole 102 on the front side of the cabinet 1, allowing the first fixing member 41 to move within the first adjustment hole 201 during height adjustment of the mounting base 2 and the roller assembly 3, providing space and flexibility for height adjustment of the mounting base 2. When the door 11 sags due to long-term use, the user can loosen the first fixing member 41 and move the mounting base 2 up and down, thereby driving the roller assembly 3 to move upward along the height direction of the cabinet 1 to compensate for the sag of the door 11. After moving to the appropriate position, the first fixing member 41 is locked in place at the first fixing hole 102, fixing the mounting base 2 and the roller assembly 3 at the current height.

[0073] In this way, even if the door 11 sags to varying degrees during long-term use of the refrigeration unit, the height of the roller assembly 3 can be adjusted by flexibly adjusting the mounting base 2. This ensures that the roller assembly 3 always firmly supports the bottom of the door 11, preventing interference between the door 11 and the locking or support components at the top and bottom of the cabinet 1. This guarantees that the door 11 can be opened and closed normally, maintaining the basic functionality of the display cabinet. This is particularly suitable for situations such as supermarket beverage display cabinets where the doors are opened and closed frequently every day, making the door 11 prone to sagging. Moreover, operators can intuitively adjust the position of the mounting base 2 and roller assembly 3 according to the actual sagging of the door 11, without the need for complicated disassembly and installation processes. After adjustment, the first fixing component 41 is locked in place. The operation is simple and convenient, not only allowing the display cabinet to return to its normal opening and closing state without affecting product display and sales, but also effectively ensuring the overlap between the door seal and the cabinet body, reducing cold air leakage and improving refrigeration efficiency.

[0074] In some embodiments, the extension distance of the first adjustment hole 201 in the height direction can correspond to the travel distance of the vertical movement of the fixed base.

[0075] like Figure 4 and Figure 5 As shown, in some embodiments, the display case may include a support member 5, which can be supported below the mounting base 2, thereby providing support for the mounting base 2.

[0076] The support member 5 is rotatably positioned below the mounting base 2. The peripheral wall of the support member 5 has multiple support surfaces 51. When the support member 5 rotates, the support surface 51 at the top of the support member 5 abuts against the bottom of the mounting base 2, thus providing support for the mounting base 2. The distance between each support surface 51 and the rotation axis 411 of the support member 5 is different. By rotating the support member 5, different support surfaces 51 can be used to abut against and support the mounting base 2, thereby supporting the mounting base 2 at the corresponding height.

[0077] Specifically, the support member 5 can rotate relative to the cabinet 1 around its rotation axis 411. Because the distances between different support surfaces 51 of the support member 5 and the rotation axis 411 are different, the operator can select the corresponding support height of the mounting base 2 based on the drooping condition of the door 11. Thus, by rotating the support member 5 to select a suitable support surface 51, and with the support surface 51 abutting against the bottom of the mounting base 2, the mounting base 2 can support the roller assembly 3 at the corresponding height, providing more stable support for the mounting base 2.

[0078] As the door 11 is used for a longer period of time, the sagging of the door 11 may become more serious. Since the sagging of the door 11 will cause abnormal friction and collision between the door 11 and the cabinet 1, it will accelerate the damage of the components. At this time, by loosening the first fixing member 41, the mounting base 2 can be moved up and down along the height direction. Then, by selecting different support surfaces 51 to support the bottom of the mounting base 2, and tightening the first fixing member 41, the support member 5 can support the mounting base 2 more stably, reducing the shaking of the mounting base 2 and the roller assembly 3 after adjustment.

[0079] In some embodiments, the distance between the plurality of support surfaces 51 and the rotation axis 411 center of the support member 5 can increase sequentially along a rotation direction of the support member 5.

[0080] Specifically, the peripheral sidewalls of the support member 5 are arranged circumferentially around the support member 5, and each peripheral sidewall may have a corresponding support surface 51. It should be noted that in some other embodiments, the support surfaces 51 may be arranged at intervals or discontinuously on multiple peripheral sidewalls.

[0081] As the distance between the support surface 51 and the center of the rotation shaft 411 increases sequentially, a continuous height variation sequence is formed. Each support surface 51 corresponds to a specific support height. The operator can select the support surface 51 that matches the actual sag of the door 11. For example, when there is slight sag, the support surface 51 closer to the center of the rotation shaft 411 is selected, while when there is severe sag, the support surface 51 farther away is selected, thereby supporting the fixed seat and roller assembly 3 at a relatively high position.

[0082] On the other hand, when the operator rotates the support 5 in a specific direction, the distance between the support surface 51 and the center of the rotation axis 411 gradually increases, thereby providing the mounting base 2 with a progressively higher support height; conversely, rotating in the opposite direction results in a progressively lower support height. In this way, the operator's operational difficulty can be greatly reduced, and as the door body 11 is used for a longer period of time, the same rotation direction can be used each time the height of the mounting base 2 and the roller assembly 3 is adjusted.

[0083] like Figure 4 As shown, in some embodiments, each support surface 51 of the support member 5 can be marked with numbers or other indications to indicate incremental levels, which facilitates user adjustment. Specifically, each support surface 51 of the support member 5 is marked with numbers 1, 2, 3, 4, etc.

[0084] Figure 6 for Figure 4 A schematic diagram of the central support component.

[0085] like Figure 6As shown, in some embodiments, the peripheral sidewall of the support member 5 may include four support surfaces 51, which may be connected end to end in sequence, and the distance between the four support surfaces 51 and the rotation axis 411 center of the support member 5 increases sequentially in the positive direction.

[0086] like Figure 5 and Figure 6 As shown, in some embodiments, the bottom of the mounting base 2 may be provided with a positioning groove 202, and the positioning groove 202 may have a downwardly oriented opening. The support surface 51 is provided with a positioning part 52, which may be protruding from the support surface 51. When the support surface 51 abuts against the bottom of the mounting base 2, the positioning part 52 can be arranged in the positioning groove 202 and abut against the groove wall of the positioning groove 202.

[0087] The positioning groove 202 can be configured to correspond to the shape of the positioning part 52, thereby improving the fitting degree between the positioning part 52 and the positioning groove 202 and increasing the contact area between the positioning part 52 and the positioning groove 202.

[0088] In this embodiment, through the cooperation of the positioning part 52 and the positioning groove 202, when installing the support member 5, the operator only needs to align the positioning part 52 of the support surface 51 with the positioning groove 202 at the bottom of the mounting base 2 to quickly and accurately complete the docking of the support surface 51 and the mounting base 2. Moreover, the positioning part 52 is restricted by the groove wall within the positioning groove 202, which can effectively prevent relative sliding or shaking between the support surface 51 and the mounting base 2, so that a more stable connection structure can be formed between the support member 5 and the mounting base 2. This can avoid the problem of inaccurate positioning caused by minor errors that may exist during the adjustment process or the gap between the mounting base 2 and the support surface 51.

[0089] On the other hand, the cooperation between the positioning part 52 and the positioning groove 202 restricts the relative movement between the support surface 51 and the mounting base 2, reducing friction and collision between them. During the use of the display cabinet, the opening and closing of the door 11 or other usage situations may cause relative sliding between the support surface 51 and the mounting base 2. Through the cooperation between the positioning part 52 and the positioning groove 202, after rotating the support member 5 to select a suitable support surface 51, the positioning part 52 enters the positioning groove 202 and abuts against the groove wall, so that the positional relationship between the support surface 51 and the mounting base 2 is reliably fixed, which can effectively prevent the aforementioned problems from occurring and reduce wear between the support surface 51 and the mounting base 2.

[0090] like Figure 6As shown, in some embodiments, multiple positioning parts 52 may be provided. Each support surface 51 may be provided with a positioning part 52. The shapes of each positioning part 52 may be the same, so that different positioning parts 52 can be inserted into the positioning groove 202 in different adjustment states.

[0091] In some embodiments, the support member 5 may be plate-shaped, such as a circular plate, a rectangular plate, or other polygonal plate.

[0092] Figure 7 for Figure 4 An exploded image.

[0093] like Figure 2 , Figure 5 and Figure 7 As shown, in some embodiments, a second fixing hole 103 is provided on the front side of the cabinet 1, and the second fixing hole 103 can be provided on the back side of the support member 5. The display cabinet may include a second fixing member 42, which passes through the rotation axis 411 of the support member 5 and can be locked at the second fixing hole 103. The support member 5 can rotate relative to the second fixing member 42, thereby allowing the user to support the corresponding support surface 51 on the bottom of the fixing base according to different height position requirements.

[0094] Specifically, by providing a second fixing hole 103 on the front side of the cabinet 1, a second fixing member 42 passes through the center of the rotation shaft 411 of the support member 5 and can be locked in the second fixing hole 103. This allows the user to fix the support member 5 to the cabinet 1 via the second fixing member 42 after adjusting the height of the fixing seat. Specifically, the second fixing member 42 is rotatably passed through the second fixing hole 103 and the center of the rotation shaft 411 of the support member 5. When the second fixing member 42 is not tightened onto the support member 5 and the positioning part 52 is disengaged from the positioning groove 202, the support member 5 can rotate relative to the second fixing member 42. Thus, the operator can rotate the support member 5 to support the fixing seat at the corresponding height. When the second fixing member 42 is tightened onto the support member 5, the support member 5 is firmly fixed to the front side of the cabinet 1. In this way, the support member 5 can be firmly fixed to the cabinet 1 via the second fixing member 42 and can also rotate relative to the second fixing member 42.

[0095] In some embodiments, the second fastener 42 may be a connecting pin, the surface of which may be configured as a smooth surface, thereby reducing the frictional force of the support 5 rotating relative to the second fastener 42.

[0096] Figure 8 for Figure 7 A schematic diagram of the first fixing component.

[0097] like Figure 2 and Figure 8 As shown, in some embodiments, the first fixing member 41 may include a rotating shaft 411. The rotating shaft 411 passes through the first adjusting hole 201 and the first fixing hole 102, thereby pre-fixing the fixing seat to the cabinet 1.

[0098] The first fixing member 41 may include a limiting part 412, which is disposed on one end of the rotating shaft 411. The limiting part 412 may be columnar, and is located inside the first adjusting hole 201. The limiting part 412 can move up and down relative to the height direction of the first adjusting hole 201.

[0099] The first fixing member 41 may include a limiting end 413. The limiting end 413 is located at the end of the rotating shaft away from the limiting part 412. The limiting end 413 is located outside the first adjusting hole 201, and the limiting end 413 can abut against the peripheral edge of the first adjusting hole 201, so that the first fixing member 41 is fixed at the corresponding height. Specifically, the radial dimension of the limiting end 413 is greater than the radial dimension of the limiting part 412, and the radial dimension of the limiting end 413 is greater than the radial dimension of the first adjusting hole 201. When the first fixing member 41 is screwed onto the first adjusting hole 201, the limiting end 413 can clamp and fix the fixing seat to the front side of the cabinet 1.

[0100] By providing a limiting part 412 on the rotating shaft 411, located within the first adjusting hole 201, the fixed seat is constrained by the limiting part 412 when moving up and down relative to the cabinet 1, thus preventing the fixed seat from loosening or shifting during the up and down movement. The limiting end 413 is located outside the first adjusting hole 201. When the operator moves the fixed seat to the corresponding height, they can rotate the first fixing member 41 to tighten it onto the fixed seat. When the limiting end 413 abuts against the side edge, the first fixing member 41 is fixed at the corresponding height, thereby fixing the position of the fixed seat.

[0101] like Figure 5 and Figure 7 As shown, in some embodiments, one end of the first adjusting hole 201 along the height direction may be provided with an inlet / outlet hole 2021. The inlet / outlet hole 2021 may be located at the bottom of the first adjusting hole 201, communicating with the first adjusting hole 201, and having a diameter larger than that of the first adjusting hole 201, and also larger than the radial dimension of the limiting end 413. Thus, the limiting end 413 can pass through the inlet / outlet hole 2021 and be installed within the first adjusting hole 201, thereby facilitating the installation of the first fixing member 41.

[0102] like Figure 5 and Figure 7As shown, in some embodiments, the mounting base 2 is provided with a second adjustment hole 203, which can extend along the height direction of the cabinet 1. A third fixing hole 104 is provided on the front side of the cabinet 1, which can communicate with the second adjustment hole 203.

[0103] The display case includes a third fixing member 43, which can be spaced below the first fixing member 41. The third fixing member 43 is movably inserted into the third fixing hole 104 and the second adjusting hole 203. The third fixing member 43 can move up and down relative to the second adjusting hole 203 and can be locked and fixed at the third fixing hole 104.

[0104] The third fixing member 43 is rotatably inserted into the third fixing hole 104 and the second adjusting hole 203. The rotation of the third fixing member 43 can be in both a forward and reverse direction. When the third fixing member 43 rotates in one direction, it can lock the mounting base 2. By locking the mounting base 2 with the third fixing member 43, the mounting base 2 can be firmly fixed to the cabinet 1, preventing the mounting base 2 from shaking or shifting during use. Moreover, in conjunction with the locking effect of the first fixing member 41 on the mounting base 2 and the locking effect of the second fixing member 42, the support member 5 provides a more stable support for the mounting base 2. The third fixing member 43 can also serve as a reinforcing member, strengthening the mounting base 2 and making the support between the roller assembly 3 and the door 11 more reliable.

[0105] Since the mounting base 2 can move up and down relative to the height of the cabinet 1, the second adjustment hole 203 is arranged to extend along the height of the cabinet 1, thus providing adjustment space for the fixed base to move in the height direction and avoiding interference between the third fixing member 43 and the fixed base. When installing or adjusting the height of the mounting base 2 in the cabinet 1, the operator passes the third fixing member 43 through the third fixing hole 104 and the second adjustment hole 203, then adjusts the height of the mounting base 2 as needed, and finally locks the third fixing member 43 to complete the installation. If it is necessary to readjust the height of the mounting base 2, simply loosen the third fixing member 43, move the mounting base 2 to the appropriate position, and then lock it again; the operation is convenient and quick.

[0106] like Figure 2 As shown, in some embodiments, the third fastener 43 may be a connecting pin, the surface of which may be configured as a smooth surface, thereby reducing the frictional force of the support 5 rotating relative to the third fastener 43.

[0107] Figure 9 for Figure 4 A schematic diagram of the mounting bracket; Figure 10 for Figure 9 A diagram from another perspective.

[0108] like Figure 4 , Figure 9 and Figure 10 As shown, in some embodiments, the mounting base 2 may have a through hole 204 arranged along the height direction of the cabinet 1. The roller assembly 3 may include a support frame 31, which is installed in the mounting base 2 and movably inserted into the through hole 204, and can move up and down along the through hole 204. The roller 32 is rotatably mounted on the support frame 31. When the roller 32 is supported under the door 11, it can support the door 11 and slide against the door 11 during the closing process, reducing the relative sliding resistance and guiding the door 11 to close more smoothly on the cabinet 1.

[0109] like Figure 4 and Figure 7 As shown, the roller assembly 3 may include an elastic element 33. The elastic element 33 is sleeved on the support frame 31, with its lower end abutting against the mounting base 2 and its upper end abutting against the support frame 31. The elastic element 33 may be made of a material that elastically deforms along the height of the cabinet 1 to generate elastic force. Specifically, the elastic element 33 may be a spring, which is sleeved on the support frame 31.

[0110] The elastic element 33 is fitted onto the support frame 31, with its lower end abutting against the mounting base 2 and its upper end abutting against the support frame 31. With the roller 32 supporting the bottom of the door body 11, when the door body 11 is subjected to external forces (such as the impact force when opening and closing the door, or changes in the weight of the door body 11), the support frame 31 can move up and down within the through hole 204, and the elastic element 33 will compress or extend depending on the force applied. For example, when the door body 11 is subjected to a downward impact force, the support frame 31 will move downward, and the elastic element 33 will be compressed, absorbing some of the impact energy. When the impact force disappears, the elastic element 33 recovers its deformation, pushing the support frame 31 upward, allowing the door body 11 to return to its proper position. Thus, the adaptive adjustment and shock absorption function of the elastic element 33 enable the roller assembly 3 to automatically adjust in the height direction. For example, after the fixed seat is adjusted to a certain height and fixed at a certain height, when the roller 32 supports the bottom of the door 11, the elastic element 33 can make a fine adjustment in the height direction according to the sag of the door 11 or the contact force between the door 11 and the roller 32. This allows the roller assembly 3 to provide more suitable support for the door 11, and the elastic element 33 can also make the door 11 more stable during operation, improving the user experience of the display cabinet product.

[0111] like Figure 4 and Figure 7As shown, in some embodiments, the mounting base 2 may include a connecting plate 21 connected to the front side of the cabinet 1. The connecting plate 21 is provided with a first adjustment hole 201, and a first fixing member 41 passes through the first adjustment hole 201 to pre-fix the connecting plate 21 to the front side of the cabinet 1. The connecting plate 21 may be provided with a second adjustment hole 203, and a third fixing member 43 may pass through the second adjustment hole 203 to fix the connecting plate 21 to the front side of the cabinet 1.

[0112] like Figure 9 and Figure 10 As shown, the mounting base 2 may include a first side plate 22, which is disposed on one side of the connecting plate 21 and extends from one side of the connecting plate 21 toward the front of the cabinet 1. The first side plate 22 may be integrally formed with the connecting plate 21.

[0113] Mounting base 2 may include a second side plate 23, which is disposed on the other side of connecting plate 21. The second side plate 23 and the first side plate 22 may be arranged opposite to each other and spaced apart. The second side plate 23 may extend from the other side of connecting plate 21 toward the front of cabinet 1. The ends of the first side plate 22 and the second side plate 23 away from connecting plate 21 may form a front opening, which facilitates the installation of roller assembly 3.

[0114] The second side plate 23, the first side plate 22, and the connecting plate 21 can be enclosed to form a mounting cavity 205. The roller assembly 3 is installed inside the mounting cavity 205. Specifically, the support frame 31, the roller 32, and the elastic element 33 are correspondingly installed inside the mounting cavity 205. The top of the second side plate 23, the first side plate 22, and the connecting plate 21 forms an upper opening 206, which communicates with the mounting cavity 205. The top of the roller 32 protrudes through the upper opening 206 and is located outside the top of the mounting base 2.

[0115] Specifically, the second side plate 23, the first side plate 22, and the connecting plate 21 enclose a mounting cavity 205, which can provide a relatively stable and independent space for the roller assembly 3. The top of the mounting base 2 forms an upper opening 206, and the upper opening 206 communicates with the mounting cavity 205. The top of the roller 32 protrudes from the upper opening 206 and is located outside the top of the mounting base 2. In this way, the roller 32 can extend out of the mounting base 2 from the upper opening 206 and abut against the bottom of the door 11. Thus, when the door 11 is closed in front of the cabinet 1, the roller 32 can directly contact the door 11 and provide support and guidance. During the movement of the door 11, the roller 32 can rotate with the movement of the door 11, making the movement of the door 11 smoother.

[0116] like Figure 4 and Figure 9As shown, in some embodiments, the mounting base 2 may be provided with a support plate 24, which may be located within the mounting cavity 205. The support plate 24 may be connected to the connecting plate 21, the second side plate 23, and the first side plate 22 respectively. A through hole 204 may be provided through the support plate 24, and the support frame 31 is movably inserted into the through hole 204 and can move up and down relative to the support plate 24 along the through hole 204. Among them, the elastic member 33 is sleeved on the support frame 31, with its lower end abutting against the support plate 24 and its upper end abutting against the support frame 31.

[0117] like Figure 4 , Figure 9 and Figure 10 As shown, in some embodiments, the mounting base 2 is provided with a limiting hole 207, which can extend along the height direction of the cabinet 1. The roller 32 may be provided with a rotating shaft portion 34, which is located on the axis of the roller 32 and is rotatably mounted on the support frame 31, so that the roller 32 can rotate normally relative to the support frame 31. The rotating shaft portion 34 passes through the limiting hole 207 and can move up and down along the limiting hole 207. Specifically, the support frame 31 is provided with a rotating shaft hole, and the rotating shaft portion 34 is inserted into the rotating shaft hole and arranged in the limiting hole 207.

[0118] The limiting hole 207 extends along the height direction of the cabinet 1, and the rotating shaft 34 of the roller 32 passes through the limiting hole 207 and can move up and down within it. The limiting hole 207 guides the movement of the rotating shaft 34, restricting its movement to the height direction and preventing the roller 32 from wobbling left and right or deviating from its intended trajectory during movement. Simultaneously, during the movement of the door 11, due to varying user force or sagging, the door 11 may impact the roller 32. The limiting hole 207 restricts excessive movement of the rotating shaft 34, preventing the roller 32 from detaching from the support frame 31 or colliding with other components due to excessive force, thus improving the reliability of the roller assembly 3's support for the door 11.

[0119] like Figure 7 As shown, in some embodiments, the roller 32 may have two rotating shafts 34, which are respectively located on both sides of the roller 32 and are both located at the axis of the roller 32. Correspondingly, the mounting base 2 has two limiting holes 207, which are respectively located on the first side plate 22 and the second side plate 23, and are arranged opposite to each other. The rotating shafts 34 pass through the limiting holes 207 on the corresponding side, thereby rotatably limiting the opposite sides of the roller 32 on the support frame 31.

[0120] like Figure 7As shown, in some embodiments, the support frame 31 may be Y-shaped. The support member 5 may include a support rod 311 and a first support arm 312 and a second support arm 311 disposed on the same side of the support rod 311. The first support arm 312 and the second support arm 311 are arranged at intervals relative to each other, and the first support arm 312 and the second support arm 311 may be spaced apart along the axial direction of the roller 32.

[0121] Figure 11 This is a schematic diagram showing the connection between the locking element and the mounting base.

[0122] like Figure 11 As shown, in some embodiments, the mounting base 2 is provided with a first lock hole 208. The display cabinet may include a locking member 6, which may be provided with a second lock hole 601. When the second lock hole 601 is in communication with the first lock hole 208, the user can fix the locking member 6 to the mounting base 2 by inserting a lock into the first lock hole 208 and the second lock hole 601, thereby locking the door 11 to the cabinet 1.

[0123] like Figure 3 and Figure 11 As shown, in some embodiments, the locking member 6 may include a base plate 61, which is disposed at the bottom of the door body 11 and can be fixedly connected to the bottom of the door body 11. The locking member 6 may be disposed on the side of the door body 11 away from its rotatable connection with the cabinet 1. Correspondingly, the fixing seat is disposed on the bottom of the side of the door body 11 away from its rotatable connection with the cabinet 1.

[0124] The locking element 6 may include an extension plate 62, which extends downward from one side of the base plate 61. The extension plate 62 is provided with a second locking hole 601. The base plate 61 and the extension plate 62 can form an L-shaped locking element 6. The rotation of the door 11 can drive the base plate 61 and the extension plate 62 to move. When the door 11 closes the storage chamber 101, the first locking hole 208 and the second locking hole 601 are connected accordingly.

[0125] The extension plate 62 is located on the side of the base plate 61 near the free end of the door 11 and extends downwards. Rotation of the door 11 moves the base plate 61 and the extension plate 62. When the door 11 is closed, it moves the locking member 6, causing the extension plate 62 to align with the second lock hole 601 of the mounting base 2. The first lock hole 208 and the second lock hole 601 automatically connect. When locking the door 11 is required, simply insert the lock into the connecting lock hole to connect the locking member 6 to the mounting base, thus fixing the door 11 to the cabinet 1 in the closed state. Furthermore, the combination of the mounting base and the locking member 6 also provides the function of locking the door 11. This locking structure eliminates the need for complex lock structures on the cabinet 1 or the door 11, reducing the complexity of locking the door 11 and improving the structural compactness of the display cabinet.

[0126] like Figure 2 and Figure 3 As shown, in some embodiments, the top of the roller assembly 3 can be supported on the top of the base plate 61. When the door 11 is closed on the cabinet 1, the top of the roller 32 supports the door 11 by contacting the base plate 61.

[0127] like Figure 10 As shown, in some embodiments, the second lock hole 601 can be provided on the first side plate 22 of the mounting base 2. After the lock passes through the first lock hole 208 and the second lock hole 601, it can lock the first side plate 22 and the extension plate 62 together, thereby locking the door 11 onto the cabinet 1.

[0128] like Figure 10 As shown, in some embodiments, there may be two second lock holes 601, which may be correspondingly provided on the first side plate 22 and the second side plate 23. When the door 11 closes the storage chamber 101, the first lock hole 208 and the two second lock holes 601 are connected.

[0129] In some other embodiments, the extension plate 62 in the locking member 6 may be arranged to extend downward from the front side of the base plate 61, and the front side of the mounting base 2 may be provided with a second locking hole 601.

[0130] In some other embodiments, the fixing base may be provided with an upper extension plate 62 extending upward toward the door 11, and the second lock hole 601 may be provided on the upper extension plate 62. The extension plate 62 in the locking member 6 may extend upward from the side of the bottom plate 61 near the side wall of the cabinet 1. When the door 11 closes the storage chamber 101, the upper extension plate 62 can be arranged opposite to the extension plate 62 and the first lock hole 208 and the second lock hole 601 are correspondingly connected.

[0131] 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 display cabinet, characterized in that, include: The cabinet body forms the outer shell of the display case; The cabinet contains a storage chamber; A door is located on the front side of the cabinet, and one side of the door is rotatably connected to the cabinet for opening and closing the storage chamber; The mounting base is movably disposed on the front side of the cabinet and located below the door. The mounting base can move up and down along the height direction of the cabinet. The mounting base is provided with a first adjustment hole extending along the height direction of the cabinet. A roller assembly is disposed within the mounting base, with the top of the roller assembly protruding outside the top of the mounting base, and the roller assembly is used to support the bottom of the door body; The cabinet body has a first fixing hole on the front side; the display cabinet includes a first fixing member, which is movably inserted into the first adjusting hole and the first fixing hole, and can be locked and fixed at the first fixing hole; When the mounting base moves up and down along the height direction of the cabinet, the mounting base can drive the roller assembly to move up and down to adjust the height of the roller assembly, and the first fixing member can move up and down relative to the first adjustment hole so that the first fixing member can be fixed at the corresponding height of the first adjustment hole.

2. The display cabinet according to claim 1, characterized in that, The display case also includes a support member, which is rotatably disposed below the mounting base. The support member has multiple support surfaces on its peripheral sidewalls, and the distance between each support surface and the rotation axis of the support member is different. When the support member rotates, the support surface located at the top of the support member can abut against the bottom of the mounting base.

3. The display cabinet according to claim 2, characterized in that, The distances between the plurality of support surfaces and the rotation axis of the support member increase sequentially along one rotation direction of the support member; The bottom of the mounting base is provided with a positioning groove; The support surface is provided with a positioning part; when the support surface abuts against the bottom of the mounting base, the positioning part can be arranged in the positioning groove and abut against the groove wall of the positioning groove.

4. The display cabinet according to claim 2, characterized in that, The front side of the cabinet is provided with a second fixing hole; The display case also includes a second fixing member, which passes through the rotation axis of the support member and can be locked at the second fixing hole; The support member is rotatable relative to the second fixing member.

5. The display cabinet according to claim 1, characterized in that, The first fastener includes: A rotating shaft passes through the first adjusting hole and the first fixing hole; A limiting part is provided on one end of the rotating shaft. The limiting part is located inside the first adjusting hole and can move up and down relative to the height direction of the first adjusting hole. The limiting end is located at the end of the rotating shaft away from the limiting part. The limiting end can abut against the peripheral edge of the first adjusting hole so that the first fixing member is fixed at the corresponding height.

6. The display cabinet according to claim 1, characterized in that, The mounting base is provided with a second adjustment hole, which extends along the height direction of the cabinet. The front side of the cabinet is provided with a third fixing hole; The display case also includes a third fixing member, which is movably inserted into the third fixing hole and the second adjusting hole. The third fixing member can move up and down relative to the second adjusting hole and can be locked and fixed at the third fixing hole.

7. The display cabinet according to claim 1, characterized in that, The mounting base is provided with through holes arranged along the height direction of the cabinet; The roller assembly includes: A support frame, which is movably inserted into the through hole and can move up and down along the through hole; Rollers are rotatably mounted on the support frame; An elastic element is sleeved on the support frame, with its lower end abutting against the mounting base and its upper end abutting against the support frame.

8. The display cabinet according to claim 7, characterized in that, The mounting base includes: A connecting plate is attached to the front side of the cabinet; the connecting plate is provided with the first adjustment hole; The first side panel is disposed on one side of the connecting plate, and the first side panel extends from one side of the connecting plate toward the front side of the cabinet. The second side panel is provided on the other side of the connecting plate. The second side panel is arranged at a distance from the first side panel. The second side panel extends from the other side of the connecting plate toward the front of the cabinet. The second side plate, the first side plate, and the connecting plate enclose a mounting cavity, and the roller assembly is installed in the mounting cavity; the top of the second side plate, the first side plate, and the connecting plate forms an upper opening, and the upper opening communicates with the mounting cavity; The top of the roller protrudes through the upper opening and is located outside the top of the mounting base.

9. The display cabinet according to claim 7, characterized in that, The mounting base is provided with a limiting hole, which extends along the height direction of the cabinet. The roller has a rotating shaft, which is located on the axis of the roller. The rotating shaft is rotatably mounted on the support frame and passes through the limiting hole. The rotating shaft can move up and down along the limiting hole.

10. The display cabinet according to claim 1, characterized in that, The mounting base is provided with a first locking hole; The display case also includes a locking mechanism, which includes: A base plate is located at the bottom of the door body; An extension plate extends downward from one side of the base plate, and the extension plate is provided with a second locking hole; The rotation of the door can drive the base plate and the extension plate to move. When the door closes the storage chamber, the first lock hole and the second lock hole are connected.

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