Horizontal display cabinet and using method thereof

Abstract

A horizontal display cabinet and a using method thereof. The horizontal display cabinet comprises a cabinet body having a cabinet opening, wherein a door body is arranged on the cabinet opening; the door body comprises a front door and a rear door, the rear door is fixedly mounted on a rear side of the cabinet opening, and the front door is slidably mounted on a front side of the cabinet opening; the height position of a front end of the cabinet opening is lower than the height position of a rear end of the cabinet opening, such that the door body is obliquely arranged, and the front door slides down under the action of dead weight to close the cabinet opening; and a rail is arranged on the cabinet opening, the front door is provided with a guide wheel, the guide wheel slides on the rail, a positioning groove is formed in the rail, and when the front door closes the cabinet opening, the guide wheel is located in the positioning groove and a bottom surface of the front door is attached to the surface of the rail. The front door of the horizontal display cabinet can be automatically closed under the action of dead weight, such that cold loss and high energy consumption due to forgetting to close the door are avoided.

Description

Horizontal display cabinet and its use method

[0001] This application is filed on June 30, 2023, with application number 202310801529.2, entitled “Horizontal display cabinet anti-theft door structure”, application number 202321704890.5, entitled “Horizontal display cabinet door structure”, application number 202321705525.6, entitled “Horizontal display cabinet”, application number 202310797419.3, entitled “Horizontal display cabinet and method of using the same”, application number It claims priority from Chinese patent applications No. 202321705551.9, entitled “Horizontal display cabinet inner shell structure”; No. 202322357428.9, filed on August 31, 2023, entitled “Horizontal display cabinet door locking structure”; and No. 202421245626.4, filed on June 3, 2024, entitled “Horizontal display cabinet door locking structure”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application belongs to the technical field of freezing and refrigeration equipment, and in particular relates to a horizontal display cabinet and a method for using the same. Background Art

[0003] A horizontal display cabinet is a type of refrigeration and freezing equipment with a top opening and a transparent glass door. The door typically opens and closes by sliding. Customers pull the door open to retrieve items, but often forget to close it when they leave. This leaves the door open, allowing cold energy inside to escape, raising the temperature inside the cabinet and causing items to melt. This increased internal temperature also increases the cabinet's operating output, increasing its energy consumption.

[0004] Summary of the Invention

[0005] In response to at least one shortcoming in the prior art, the present application provides a horizontal display cabinet and a method for using the same.

[0006] In one aspect, an embodiment of the present application provides a horizontal display cabinet, comprising a cabinet body having a cabinet opening, and a door body being mounted on the cabinet opening;

[0007] The door body includes a front door and a rear door. The rear door is fixedly mounted on the rear side of the cabinet opening, and the front door is slidably mounted on the front side of the cabinet opening. The front end of the cabinet opening is lower than the rear end of the cabinet opening, so that the door body is tilted. The front door slides down under its own weight to close the cabinet opening.

[0008] The cabinet opening is provided with a track, and the front door has a guide wheel, which slides on the track. The track is provided with a positioning groove. When the front door closes the cabinet opening, the guide wheel is located in the positioning groove and the bottom surface of the front door fits with the surface of the track.

[0009] Another embodiment of the present application provides a method for using the above-mentioned horizontal display cabinet, wherein, in the horizontal display cabinet, the positioning groove includes a first positioning groove located at the front end of the track and a second positioning groove located behind the first positioning groove, and the guide wheel includes a first guide wheel located at the front end of the front door and a second guide wheel located at the rear end of the front door; when the front door is closed, the first guide wheel is located in the first positioning groove and the second guide wheel is located in the second positioning groove; when the front door is opened, the first guide wheel slides on the track between the first positioning groove and the second positioning groove. The method for using the horizontal display cabinet includes the following steps:

[0010] S1: The first arm pushes the front door backward, pushes the first guide wheel out of the first positioning slot, and pushes the second guide wheel out of the second positioning slot;

[0011] S2: The first arm further pushes the front door backward, pushing both the first guide wheel and the second guide wheel onto the track surface, and slides backward along the track until an open space is formed between the front end of the front door and the front end of the cabinet opening so that the arm can pass through;

[0012] S3: The first arm holds the front door to keep it suspended, while the second arm reaches into the cabinet through the open space to take the goods inside.

[0013] S4: The first arm leaves the front door, and under the weight of the front door, the first guide wheel and the second guide wheel slide forward along the track until the first guide wheel and the second guide wheel fall into the first positioning groove and the second positioning groove respectively, and the front door closes the cabinet opening.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The horizontal display cabinet provided in at least one embodiment of the present application divides the door body into a front door and a rear door, the cabinet opening is tilted, and the rear door is fixedly installed to stably close the rear side of the cabinet opening. The front door slides with the track on the cabinet opening through the guide wheels provided thereon. During use, after the customer pulls open the front door to open the cabinet opening to take the goods, releases the front door, and the tilted cabinet opening causes the front door to slide down under the action of gravity and close the front side of the cabinet opening, so that the door body can close automatically when the external force is removed, keeping the cabinet body closed, avoiding the loss of cooling energy and the increase in power consumption of the display cabinet caused by forgetting to close the door, and solving the problem of cooling energy loss and increased energy consumption of existing display cabinets due to forgetting to close the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1a is a schematic diagram 1 of a horizontal display cabinet provided in one embodiment of the present application;

[0017] FIG1 b is a second schematic diagram of a horizontal display cabinet provided in one embodiment of the present application;

[0018] FIG2 a is a cross-sectional view of a horizontal display cabinet provided in one embodiment of the present application;

[0019] FIG2b is a partial enlarged view of portion A in FIG2a;

[0020] FIG2c is a partial enlarged view of portion B in FIG2a;

[0021] FIG3 a is a cross-sectional view of the cabinet opening of a horizontal display cabinet provided by one embodiment of the present application, wherein the front door is in a closed state;

[0022] FIG3b is a partial enlarged view of portion C in FIG3a;

[0023] FIG3c is a partial enlarged view of portion D in FIG3a;

[0024] FIG4 a is a cross-sectional view of the cabinet opening of a horizontal display cabinet provided by one embodiment of the present application, wherein the front door is in a fully opened state;

[0025] FIG4b is a partial enlarged view of portion E in FIG4a;

[0026] FIG5 is a schematic diagram of camera arrangement inside a horizontal display cabinet provided by one embodiment of the present application;

[0027] FIG6 a is a schematic diagram of a horizontal display cabinet provided by one embodiment of the present application with one front door removed;

[0028] FIG6b is a partial enlarged view of the opened cabinet opening in FIG6a;

[0029] FIG7 is a top view of the front door of a horizontal display cabinet according to one embodiment of the present application;

[0030] FIG8 a is a schematic diagram of a horizontal display cabinet with a portion of the outer shell structure at the cabinet opening removed according to an embodiment of the present application;

[0031] FIG8b is a partial enlarged view of the portion F in FIG8a , illustrating the state of the protrusion and the power buffer device during the opening process of the front door;

[0032] FIG9 a is a schematic diagram of a side of a cover of a horizontal display cabinet installed on a cabinet opening according to an embodiment of the present application;

[0033] FIG9 b is a schematic diagram of the other side of the cover of the horizontal display cabinet installed on the cabinet opening according to one embodiment of the present application;

[0034] FIG9c is a partial enlarged view of portion G in FIG9b;

[0035] FIG10 a is a schematic diagram of the display cabinet shown in FIG6 a with the cover removed;

[0036] FIG10b is a partial enlarged view of the cabinet opening in FIG10a;

[0037] FIG10c is a partial enlarged view of the display cabinet shown in FIG6a, viewed obliquely upward from the inside of the accommodating cavity;

[0038] FIG11a is a schematic diagram of a horizontal display cabinet according to an embodiment of the present application with a rear door removed, wherein other components above the cabinet opening are removed to clearly show the installation slot;

[0039] FIG11b is a partial enlarged view of the opened cabinet opening in FIG11a;

[0040] FIG12a is a schematic diagram of a horizontal display cabinet according to an embodiment of the present application with the rear cover removed;

[0041] FIG12b is a partial enlarged view of portion H in FIG12a;

[0042] FIG13a is a schematic diagram of the display cabinet shown in FIG12a with the rear housing of the cabinet opening further removed;

[0043] FIG13b is a partial enlarged view of portion I in FIG13a;

[0044] FIG14a is a first schematic diagram of an embodiment of a pressure edge strip installed in a horizontal display cabinet of the present application;

[0045] FIG14 b is a second schematic diagram of an embodiment of a pressure edge strip installed in a horizontal display cabinet of the present application;

[0046] FIG15 is a cross-sectional view of the assembled edge strips and partitions of the horizontal display cabinet of the present application, wherein only the top of the partition is shown;

[0047] FIG16a is a third schematic diagram of a horizontal display cabinet provided by one embodiment of the present application, with the front door in a closed state;

[0048] FIG16 b is a partial enlarged view of portion J in FIG16 a ;

[0049] FIG17 a is a schematic diagram of the horizontal display cabinet shown in FIG16 a with one front door removed;

[0050] FIG17b is a partial enlarged view of portion K in FIG17a;

[0051] FIG18a is a schematic diagram 1 of a horizontal display cabinet showing a cabinet opening alone (with the front door open and locked) in one embodiment of the present application;

[0052] FIG18b is a partial enlarged view of the portion L in FIG18a;

[0053] FIG19a is a second schematic diagram showing a horizontal display cabinet with its door open and closed, according to an embodiment of the present application.

[0054] FIG19b is a partial enlarged view of the portion M in FIG19a;

[0055] FIG20 a is a schematic diagram of the front door of the horizontal display cabinet of the present application, viewed obliquely upward in a direction away from the rotating member;

[0056] FIG20 b is a schematic diagram of the front door of the horizontal display cabinet of the present application, viewed obliquely upward in the direction facing the rotating member;

[0057] FIG21 is a structural block diagram of the sensing component, driving component and controller in the horizontal display cabinet of the present application;

[0058] FIG22 is a flow chart of a method for using the horizontal display cabinet of the present application. DETAILED DESCRIPTION

[0059] The following will provide a clear and complete description of the technical solutions in the embodiments of the application, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the application without inventive effort are also within the scope of protection of the application.

[0060] In the description of the application, it should be understood that the terms "horizontal", "longitudinal", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limitations on the application. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The "multiple" involved in this application refers to two or more.

[0061] In the description of the application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the application based on the specific circumstances.

[0062] In an exemplary embodiment of a horizontal display cabinet provided herein, as shown in Figures 1a and 1b, the horizontal display cabinet includes a cabinet body 1 having a cabinet opening 11, with a door body 2 mounted on the cabinet opening 11. A receiving cavity 12 is defined within the cabinet body 1 for storing goods that require refrigeration or freezing.

[0063] The door body 2 includes a front door 21 and a rear door 22. The rear door 22 is fixedly mounted on the rear side of the cabinet opening 11, and the front door 21 is slidably mounted on the front side of the cabinet opening 11. As shown in FIG2a , the height position of the front end of the cabinet opening 11 is lower than the height position of the rear end of the cabinet opening 11, so that the door body 2 is tilted, and the front door 21 slides down under the action of its own weight and closes the cabinet opening.

[0064] As shown in Figures 3a to 4b, the cabinet opening 11 is provided with a track 3, and the front door 21 has a guide wheel 23. The guide wheel 23 slides on the track 3, and a positioning groove 31 is provided on the track 3. When the front door 21 closes the cabinet opening 11, the guide wheel 23 is located in the positioning groove 31 and the bottom surface of the front door 21 is in contact with the surface of the track 3.

[0065] In the above embodiment, the cabinet opening 11 of the horizontal display cabinet is set at an angle, the front door 21 slides and the rear door 22 is fixed, the cabinet opening 11 is opened, and the fixed rear door 22 remains closed to the rear side of the cabinet opening 11. The front door 21 can slide down to the state of closing the front side of the cabinet opening 11 under the action of its own weight, so that after the customer takes the goods and leaves, the cabinet opening 11 can be closed automatically, avoiding the loss of cold air caused by forgetting to close the door and the increase in power consumption of the display cabinet, and solving the problem that the existing display cabinets are prone to loss of cold air and increased energy consumption due to forgetting to close the door.

[0066] In addition, the guide wheel 23 slides on the track 3 provided on the cabinet opening 11, and the front door 21 can be slidably mounted on the front side of the cabinet opening 11, thereby reducing the resistance of the front door 21 to sliding, and preventing the front door 21 from hovering due to excessive resistance during the process of sliding down. In conjunction with the inclined setting of the cabinet opening 11, the front door 21 can slide down under its own weight to a state where the front side of the cabinet opening 11 is closed, thereby ensuring the automatic closing effect of the door body 2. When the front door 21 closes the cabinet opening, the guide wheel 23 is located in the positioning groove 31, which not only ensures that the front door 21 is closed in place, but also when the front door 21 is closed, the bottom surface of the front door 21 fits with the surface of the track 3, so that there is no gap between the front door 21 and the track 3, further increasing the sealing performance of the front door 21 to the cabinet opening 11, thereby enhancing the thermal insulation performance of the display cabinet.

[0067] In some embodiments, as shown in Figures 3b and 3c, the rear side of the positioning groove 31 is transitionally connected to the surface of the track 3 via a curved surface 32. This allows the guide wheel 23, which slides along the track 3, to gradually descend along the curved surface 32 into the positioning groove 31 when the front door 21 slides forward and closes the cabinet opening 11. The descending process is relatively gradual, avoiding a sudden large drop in the guide wheel 23 during its sliding process and preventing the guide wheel 23 from colliding with the positioning groove 31 when it falls into the positioning groove 31. Furthermore, when the front door 21 is pushed backward to open the cabinet opening 11, the guide wheel 23 disengages from the positioning groove 31 along the curved surface 32, preventing the positioning groove 31 from catching the guide wheel 23 and allowing the front door 21 to open smoothly.

[0068] In some embodiments, further referring to Figures 3a-4b, the positioning groove 31 includes a first positioning groove 311 located at the front end of the track 3 and a second positioning groove 312 located behind the first positioning groove 311. The guide wheel 23 includes a first guide wheel 231 located at the front end of the front door 21 and a second guide wheel 232 located at the rear end of the front door 21. When the front door 21 closes the cabinet opening 11, the first guide wheel 231 is located in the first positioning groove 311, and the second guide wheel 232 is located in the second positioning groove 312. When the front door 21 opens the cabinet opening 11, the first guide wheel 231 slides on the track 3 between the first positioning groove 311 and the second positioning groove 312. Optionally, the rear sides of the first positioning groove 311 and the rear sides of the second positioning groove 312 are both transitionally connected to the surface of the track 3 via an arc surface 32.

[0069] In the above embodiment, when the front door 21 is opened, the second guide wheel 232 slides to the rear of the second positioning slot 312, and the first guide wheel 231 always slides on the track 3 between the first positioning slot 311 and the second positioning slot 312 and does not fall into the second positioning slot 312. When the cabinet opening 11 is partially or fully open, both guide wheels 23 are located on the track 3 and do not fall into the positioning slot 31, thereby preventing the positioning slot 31 from obstructing the sliding of the guide wheels 23. As a result, the front door 21 can slide smoothly under its own weight, ensuring the automatic closing performance of the door body 2.

[0070] In some embodiments, as shown in Figures 1a-4b , a limiter 24 is installed on the door body 2 to limit the opening of the front door 21 when the front door 21 opens the cabinet opening 11, thereby preventing the front door 21 from exceeding its maximum opening. When the front door 21 is in its maximum opening, the first guide wheel 231 is located in front of the second positioning slot 312. In other words, when the front door 21 is opened to any position, the first guide wheel 231 is always located on the surface of the track 3 between the first positioning slot 311 and the second positioning slot 312 and will not fall into the second positioning slot 312. The second guide wheel 232 is always located on the surface of the track 3 behind the second positioning slot 312. When the external force for opening the front door 21 is released, both the front and rear guide wheels 23 can slide forward along the track 3 under the action of the front door 21's own weight until the front door 21 closes the cabinet opening 11. The first guide wheel 231 falls into the first positioning groove 311, and the second guide wheel 232 falls into the second positioning groove 312, ensuring that the front door 21 can automatically close the cabinet opening 11 under the action of its own weight.

[0071] In some embodiments, the limiting device 24 is a handle 241, which is installed on the top surface of the front door 21; the front end of the rear door 22 is stacked above the front door 21, and when the handle 241 is against the front end of the rear door 22, the front door 21 is in the maximum open state.

[0072] In the above embodiment, the front door 21 is moved backward to open the cabinet opening 11, and the handle 241 moves backward accordingly until it abuts the front end of the rear door 22. The rear door 22 uses the handle 241 to prevent the front door 21 from moving further backward, thereby limiting the opening degree of the front door 21 to no more than the maximum opening state. The handle 241 not only allows customers to hold and push it, thereby facilitating the backward opening of the front door 21, but also serves as an embodiment of the limit device 24, so that the front door 21 is limited to a position no more than the maximum opening state during the opening process, preventing the first guide wheel 231 at the front end of the front door 21 from falling into the second positioning groove 312 at the rear side, ensuring that when the external force leaves the front door 21, the front door 21 can automatically slide down and close the cabinet opening 11. In addition, the handle 241 can also serve as a counterweight for the front door 21, and its gravity acts on the front door 21, which can accelerate the automatic closing of the front door 21. Optionally, the handle 241 is located at the front end of the front door 21, so that more of the front door 21 can be moved backward to under the rear door 22, thereby opening the cabinet opening 11 to a greater extent and increasing the convenience of taking goods.

[0073] In the above embodiment, when the handle is used as a limiter to limit the maximum opening state, the handle can be designed according to the size of the cabinet opening and the size of the door body so that the handle functions as a limiter. Those skilled in the art can design it according to the different sizes and specifications of the horizontal display cabinet, and this application does not elaborate on it.

[0074] In some embodiments, as shown in FIG5 , the horizontal display cabinet further includes a camera 4 , which is installed in the cabinet body 1 below the front door 21 to photograph the goods in the cabinet body 1 . Thus, when no one is selling goods, the horizontal display cabinet can identify the category of goods taken through the collected video images, thereby achieving accurate goods settlement.

[0075] Because the rear door 22 is fixed and only the front door 21 can be opened, goods are removed from the front of the cabinet opening 11. The camera 4 is located below the front door 21, and the captured image can more comprehensively cover the area on the front of the cabinet 1 where goods are removed. In addition, because the front door 21 can close under its own weight, the user only needs to hold the front door with one hand and reach into the cabinet with the other hand to remove the goods. This single-handed removal can reduce arm obstruction to image capture and improve image recognition accuracy.

[0076] In some embodiments, further referring to FIG. 5 , the storage cavity 12 is divided into multiple storage areas 121. Each storage area 121 is provided with two cameras 4. The two cameras 4 are mounted on the left and right sides of the front end of the corresponding storage area 121, respectively. This allows for cross-image capture of the area below the front door 21. The redundancy of the two cameras' image capture improves image recognition accuracy. Furthermore, even if one camera 4 is blocked by an arm, the other camera 4 can still capture images of the goods being removed.

[0077] The present application further provides a method for using the horizontal display cabinet, as shown in FIG22 , comprising the following steps:

[0078] S1: The user's first arm pushes the front door 21 backward, pushing the first guide wheel 231 out of the first positioning slot 311 and the second guide wheel 232 out of the second positioning slot 312, thereby removing the restriction on the front door 21;

[0079] S2: The first arm continues to push the front door 21 backward, pushing both the first guide wheel 231 and the second guide wheel 232 onto the surface of the track 3 and sliding backward along the track 3, causing the front door 21 to slide backward. An open space 122 is created between the front end of the front door 21 and the cabinet opening 11, connecting the interior and exterior spaces of the cabinet 1. As the front door 21 gradually slides backward, the open space 122 gradually widens until the open space 122 is large enough for the user's arm to pass through.

[0080] S3: The first arm holds the front door, so that the front door 21 remains in a suspended state, and the open space 122 remains large enough for the arm to pass through. At the same time, the user's second arm reaches into the cabinet 1 through the open space 122 to take the goods in the cabinet 1;

[0081] S4: After taking the goods out of the cabinet 1, the user's first arm releases the front door 21, that is, the first arm leaves the front door 21, and the front door 21 loses the support of the user's arm. Under the action of the self-weight of the front door 21, the first guide wheel 231 and the second guide wheel 232 slide forward along the track 3 until the first guide wheel 231 and the second guide wheel 232 fall into the first positioning groove 311 and the second positioning groove 312 respectively, and the front door 21 closes the cabinet opening 11.

[0082] When using the above-mentioned horizontal display cabinet, after the user opens the front door 21, if the user extends both arms into the cabinet body 1 to take out the goods, the front door 21 will lose the support of the arms and will slide down under its own weight, pressing on the user's two arms, making it difficult to carry the arms out of the cabinet body 1. In order to smoothly pull out the arms and take out the goods from the cabinet body 1, the user needs to hold the front door 21 with one arm and extend the other arm into the cabinet body 1 to take the goods.

[0083] Therefore, the front door 21 can slide down under its own weight and close the cabinet opening 11, which not only prevents the user from forgetting to close the door body 2 after leaving and causing the loss of cooling energy, but also allows the user to enter the cabinet body 1 with one hand to take the goods. In addition, when the horizontal display cabinet is used for unmanned sales, since a camera needs to be installed in the cabinet body 1, the camera collects images inside the cabinet body 1, thereby performing image recognition on the goods taken out and accurately settling the goods taken out, the horizontal display cabinet allows the user to enter the cabinet body 1 with one hand to take the goods. Compared with entering the cabinet body 1 with both hands, a single arm in the cabinet body 1 blocks less of the camera, thereby improving the accuracy of the camera's image recognition.

[0084] In some embodiments, as shown in Figures 6a to 8b, a power buffer device 5 is installed on the cabinet body 1, and at least one protrusion 211 is provided on the front door 21. The protrusion 211 is protruding toward the power buffer device 5. The protrusion 211 is connected to the power buffer device 5 in the connecting groove 61. During the sliding process of the front door 21, the protrusion 211 moves in the connecting groove 61 and, under the action of the power buffer device 5, the protrusion 211 can drive the front door 21 to slowly move from the rear end of the cabinet opening 11 to the front end of the cabinet opening 11, thereby achieving slow closing of the front door 21. The power buffer device 5 can adopt an existing component with a buffering effect. For example, reference can be made to the automatic door closing buffer device disclosed in Chinese utility model patent CN213710775U, which will not be described in detail in this application.

[0085] As shown in Figures 6a and 6b, a cover 6 is installed on the cabinet opening 101, which covers the power buffer device 5, thereby protecting the power buffer device 5 from collision and preventing it from being directly exposed to water vapor in the cabinet body 1, thereby reducing the corrosion of the power buffer device 5 and reducing the risk of frost on its surface, thereby increasing the service life of the power buffer device 5, reducing the risk of it getting stuck due to frost, and keeping it in normal working condition.

[0086] 9a and 9b , the cover 6 has a connecting groove 61. When the front door 21 moves, the protrusion 211 slowly closes the door body 2 under the action of the power buffer device 5. The protrusion 211 moves in the connecting groove 61 and slowly slides under the action of the power buffer device 5. The connecting groove 61 provides space for the protrusion 211 to move.

[0087] In the above-mentioned exemplary embodiment, the horizontal display cabinet covers the power buffer device 5 with a cover shell 6 to prevent it from being bumped or damaged, avoid accelerated corrosion and surface frost caused by direct contact with water vapor, prevent it from getting stuck, and enable it to work stably for a long time, thereby increasing its service life. The connecting groove 61 provided in the cover shell 6 provides a movable space for the protrusion 211, ensuring that the power buffer device 5 plays a buffering role in closing the front door 21 through the protrusion 211, thereby solving the problem that the door closing buffer device equipped in the current display cabinet is prone to bumping, corrosion and getting stuck.

[0088] As shown in Figures 6b and 8a-9b, the notch of the connecting groove 61 opens toward the rear of the cabinet opening. When the front door 21 moves from the rear end of the cabinet opening 11 to the front end of the cabinet opening 11, the protrusion 211 enters the connecting groove 61 through the notch. As the front door 21 moves and closes the cabinet opening 11, the dynamic buffer device 5 primarily buffers the front door 21 at the end of its travel. When the front door 21 reaches the end of its travel, the protrusion 211 enters the connecting groove 61 through the notch, thereby interacting with the dynamic buffer device 5 to produce a buffering effect. When the front door 21 opens the cabinet opening, the protrusion 211 can exit the connecting groove 61 through the notch, without limiting the extent to which the front door 21 can open.

[0089] In some embodiments, as shown in FIG6b , the track 3 includes a first track segment 301 disposed on the cover 6 and a second track segment 302 disposed on the inner wall of the cabinet 1 . That is, a portion of the track 3 is disposed on the cover 6 , and the other portion is disposed on the cabinet 1 . The cover 6 and the inner wall of the cabinet are docked on the sliding path of the front door 21 . The cover 6 , as part of the track 3 , guides the front door 21 to move smoothly, preventing the cover 6 from obstructing the movement of the front door 21 . In this embodiment, the first positioning groove 311 is located in the first track segment 301 , and the second positioning groove 312 is located in the second track segment 302 .

[0090] In some embodiments, as shown in Figures 9a and 9b, the lower portion of the cover 6 protrudes toward the accommodating cavity 12 and forms a support 62 on the top of the protruding portion. The top surface of the support 62 serves as the first track segment 301. The outer side of the support 62 facing away from the accommodating cavity 12 has a first reinforcing rib 63. The first reinforcing rib 63 is located below the first track segment 301, which not only reinforces the support 62 and enhances its structural strength, but also enhances the support for the first track segment 301 and improves its stability, thereby avoiding compression and deformation during the sliding of the front door 21 and ensuring smooth opening and closing of the front door 21.

[0091] In some embodiments, as shown in Figures 9b, 9c, and 10a-10c, the housing 6 is provided with a plurality of first plug-in boards 64, and a plurality of corresponding first sockets 131 are provided on the inner wall of the cabinet 1. The first sockets 131 match the shape of the first plug-in boards 64 to allow the first plug-in boards 64 to be inserted therein, thereby securing the housing 6 to the cabinet 1 by plugging, facilitating installation. Specifically, the first plug-in boards 64 are located below the outer surface of the housing 6.

[0092] In some embodiments, further referring to Figures 9b and 9c, the first plug-in board 64 is provided with a limiting portion 65. The limiting portion 65 comprises a first limiting plate 651 disposed horizontally and a second limiting plate 652 disposed vertically, with the first limiting plate 651 and the second limiting plate 652 intersecting. In this embodiment, the first plug-in board 64 is disposed vertically, and the limiting portion 65 is disposed at the top of the first plug-in board 64. Because the first socket 131 matches the shape of the first plug-in board 64, the limiting portion 65, having a cross structure, cooperates with the first socket 64 to achieve a limiting function. Specifically, the first socket 64 has a shape that matches the first plug-in board 64 and its upper limiting portion 65. The first limiting plate 651 disposed horizontally limits the vertical movement of the cover 6, while the second limiting plate 652 disposed vertically limits the lateral movement of the cover 6, thereby improving the stability of the cover 6 after insertion and enhancing the secure installation of the cover 6.

[0093] In some embodiments, further referring to Figure 9c, the side of the first limiting plate 651 close to the first socket slot 131 and the side of the second limiting plate 652 close to the first socket slot 131 both have a chamfer 653, so that the end of the limiting portion 65 close to the first socket slot 131 has a closed structure. Through the guidance of the inclined surface of the chamfer 653, the limiting portion 65 is easier to insert into the first socket slot 131.

[0094] In some embodiments, as shown in Figures 9a to 10c, the cover 6 has a plurality of second sockets 66, and a plurality of second plug-in plates 132 correspondingly disposed on the inner wall of the cabinet 1 are plugged into the second sockets 66. Specifically, the second sockets 66 are disposed at the top of the cover 6, and the second plug-in plates 132 are disposed near the top of the cabinet opening 11. The top of the cover 6 is connected to the cabinet 1 via the second sockets 66 and the second plug-in plates 132, and the lower portion of the cover 6 is connected to the cabinet 1 via the first plug-in plates 64 and the first sockets 131. The cabinet 1 and the cover 6 are plugged into each other, thereby improving the firmness of the connection between the cover 6 and the cabinet 1.

[0095] In some embodiments, as shown in Figures 9b and 10c, the cover 6 has at least one longitudinally disposed latch 67 that engages with a slot 133 defined in the inner wall of the cabinet 1. Specifically, the latch 67 is disposed on one or both transverse sides of the cover 6, extending toward the inner wall of the cabinet 1 and interlocking with the slot 133 defined therein, thereby enhancing the secure installation of the cover 6. Furthermore, the latch 67 can be directly engaged in the slot 133 during installation and can be pulled out of the slot 133 by an external force during removal, making both installation and removal of the cover 6 more convenient. This allows for quick removal of the cover 6 for repair or replacement in the event of a malfunction of the power buffer device 5.

[0096] The lower part of the cover shell 6 is plugged and fixed to the cabinet 1 through the first plug-in plate 64 and the first socket slot 131, the top of the cover shell 6 is plugged and fixed to the cabinet 1 through the second plug-in plate 132 and the second socket slot 66, and the side of the cover shell 6 is clipped to the cabinet 1 through the buckle 67 and the slot 133, thereby realizing the installation and fixation of different parts of the cover shell 6, so that the cover shell 6 is firmly installed on the cabinet.

[0097] In some embodiments, as shown in FIG2a , the front end of the rear door 22 is stacked on the rear end of the front door 21, that is, the front end of the rear door 22 is located above the rear end of the front door 21. With further reference to FIG11a and FIG11b , mounting grooves 14 are provided on both the left and right sides of the cabinet opening 11. The rear end of the mounting grooves 14 extends to the rear side of the cabinet body 1 and is provided with ports 141. Both sides of the rear door 22 are plugged into the corresponding mounting grooves 14 through corresponding ports 141. The left and right sides of the cabinet opening 11 are equipped with pressure strips 7. The pressure strips 7 have a covering portion 71 extending above the front door 21 to limit the front door 21 from detaching upward from the cabinet opening 11. The pressure strips 7 can be fixedly mounted on the cabinet opening 101 or can be integrally provided on the cabinet body 1. It is understandable that in order to achieve the insertion of the rear door 22, the opening of the mounting groove 14 faces the accommodating cavity 12.

[0098] The front end of the rear door 22 is overlapped on the rear end of the front door 21, and the covering portion 71 of the edge pressing strip 7 is above the front door 21, so that the rear door 22 and the edge pressing strip 7 respectively restrict the rear end and front part of the front door 21 from moving upward. The rear door 22 and the track 3 provided on the cabinet opening 11 respectively restrict the rear end of the front door 21 from the upper and lower directions, and the edge strip 7 and the track 3 provided on the cabinet opening 11 respectively restrict the front end of the front door 21 from the upper and lower directions, and the rear door 22 and the track 3 formed a guide groove at the rear of the cabinet body, which guides the front door 21 so that the front door 21 can only slide along the plane in which it is located and cannot move horizontally in the upper and lower directions, nor can it deflect in the upper and lower directions, so that it cannot be separated from the cabinet opening 11 by lifting it upward, nor can it be removed from the cabinet opening 11 by lifting the front section of the front door 21 to be higher than the cabinet opening 11 and then pulling it forward, making it difficult for the front door 21 to be easily removed from the cabinet opening 11 by humans, and the rear door 22 is fixedly installed and cannot be easily removed by humans, so that the door body 2 has a strong anti-dismantling performance, thereby enhancing the anti-theft performance of the door body 2, and only needs to lock the sliding of the front door 21 to make the door body 2 reliably seal the cabinet opening 11, preventing items in the display cabinet from being stolen.

[0099] By providing the mounting slots 14, the rear door 22 is secured to the cabinet opening 11 by inserting from the back to the front. The mounting slots 14 clamp the rear door 22, or a retaining structure prevents the rear door 22 from falling out of the mounting slots 14, thereby achieving a secure installation of the rear door 22. Furthermore, since the door body 2 is tilted along the cabinet opening 11, the mounting slots 14 are also tilted. Gravity pushes the rear door 22 forward, placing it against the front end of the mounting slots 14, thereby ensuring the stability of the rear door 22 within the mounting slots 14. Once the rear door 22 is securely installed, the mounting slots 12 are embedded in the cabinet opening 11, making it difficult to disassemble and damage, thereby enhancing the anti-theft and anti-disassembly capabilities of the rear door 22. In addition, the structure of the mounting groove 14 makes the gap between it and the edge of the rear door 22 U-shaped, and the structure of the gap is relatively tortuous, which can enhance the sealing performance and improve the thermal insulation effect. It also improves the waterproof performance of the left and right edges of the rear door 22, so that the condensed water can only flow forward on the inclined rear door 22 and will not extend into the cabinet body 1 through the gap between the rear door 22 and the cabinet opening 11.

[0100] Since the door body 2 is tilted, the condensed water formed on the surface of the front door 21 will flow forward, leave the front door 21 from its front edge, and flow into the drainage structure provided at the cabinet opening 11 for discharge. Since the front end of the rear door 22 is stacked on the rear end of the front door 21, the condensed water formed on the surface of the rear door 22 will also flow forward, leave the rear door 22 from its front edge, and fall onto the front door 21 below, and further flow forward along the front door 21, leave the front door 21 and enter the drainage structure provided at the cabinet opening 11 for discharge. In the process of the condensed water flowing from back to front, it will pass over the gap between the rear door 22 and the front door 1, and the tilt of the front door 21 also prevents the condensed water from flowing backward to the gap between the front and rear doors, thereby preventing the condensed water from gathering in the gap between the front and rear doors, and preventing the condensed water from seeping into the cabinet body 1 through the gap between the front and rear doors, thereby causing ice to form.

[0101] In some embodiments, as shown in FIG2b , the front side of the cabinet opening 11 has a water retaining platform 151, and the front end of the front door 21 is located above the water retaining platform 151, so that the condensed water flows forward and leaves the front door 21, and then falls onto the water retaining platform 151. A drainage groove 152 is provided on the front side of the water retaining platform 151, and the drainage groove 152 is connected to the drainage hole (not shown) provided in the cabinet body 1. Because the gap between the front door 21 and the cabinet opening 11 is located above the front side of the water retaining platform 151, the condensed water that falls into the gap falls into the drainage groove 152 on the water retaining platform 151. The condensed water further flows along the drainage groove 152 to the drainage hole and is discharged outside the cabinet body 1.

[0102] In some embodiments, as shown in FIG2c and FIG12a-13b, a stopper 81 is installed in the space between the rear of the cabinet and the rear door 22. The rear of the cabinet presses the stopper 81, which presses against the rear end of the rear door 22 and forces the front end of the rear door 22 to press against the front inner wall of the mounting groove 14. The rear of the cabinet presses the rear door 22 via the stopper 81, not only preventing the rear door 22 from falling backward out of the mounting groove 14 and keeping the rear door 22 securely installed, but also tightly pressing the front end of the rear door 22 against the front inner wall of the mounting groove 14, ensuring close contact between the two and improving the sealing performance between the front end of the rear door 22 and the cabinet opening 11.

[0103] The rear door 22 and the rear of the cabinet form a clamp on the limit block 81, so that the space between the rear door 22 and the rear of the cabinet is in an interference fit state with the limit block 81. The bottom of the rear side of the limit block 81 has an inclined wedge 811, so that the thickness of the bottom of the limit block 81 gradually decreases from top to bottom, so that the limit block 81 can be inserted downward into the space between the rear door 22 and the rear of the cabinet and interfere with it; the inclined wedge 811 can also be set at the top of the rear side of the limit block 81. At this time, the limit block 81 is inserted upward into the space between the rear door 22 and the rear of the cabinet and interferes with it.

[0104] The limit block 81 is mounted on the cabinet body 1 via a fastening bolt 82. The limit block 81 has a vertically arranged waist hole 812, through which the fastening bolt 82 passes. When the fastening bolt 82 is loosened, the limit block 81 can be raised or lowered by the fastening bolt 82 and the waist hole 812, thereby moving away from the rear end of the rear door 22, allowing the rear door 22 to be withdrawn and removed. When the rear door 22 is installed, the raised or lowered limit block 81 will not block the insertion of the rear door 22. After the rear door 22 is fully inserted into the installation slot 14, the limit block 81 is raised or lowered so that it is aligned with the rear end of the rear door 22. The fastening bolt 82 is then tightened to press the limit block 81 against the rear door 22. When the rear door 22 is damaged and needs to be replaced, the old door is first removed, and then the new door is installed. During the entire process, the limit block 81 remains suspended on the fastening bolt 82 and does not need to be removed, making operation convenient.

[0105] In some embodiments, as shown in FIG12a , an assembly window 16 is provided on the rear side of the cabinet 1 , through which the port 141 of the mounting slot 14 is exposed, so that the port 141 can communicate with the exterior of the cabinet through the assembly window 16 . When the rear door 22 is installed into or removed from the mounting slot 14 through the port 141 , the rear door 22 must pass through the assembly window 16 . The assembly window 16 serves as a necessary passage for the installation and removal of the rear door 22 . A cover plate 17 is installed on the assembly window 16 , which closes the assembly window 16 , thereby enclosing the port 141 of the mounting slot 14 and the stop block 81 inside the cabinet 1 , thereby increasing the steps for removing the rear door 22 and improving the anti-theft and removal effect of the door body 2 .

[0106] The limit block 81 has a waist hole 812, and when the cabinet 1 is provided with an assembly window 16, loosen the fastening bolts 82 and raise or lower the limit block 81 into the assembly window 16, which not only can remove the limit block 81 from the rear door 22, but also can pull out the limit block 81 from the space between the rear door 22 and the rear of the cabinet; after the rear door 22 is installed, insert the limit block 81 into the space between the rear door 22 and the rear of the cabinet to fix the limit block 81 and the rear door 22. At this time, tightening the fastening bolts 82 is easy to operate. The assembly window 16 is not only used for installation and removal of the rear door 22, but also provides an operating space for the limit block 81 to be inserted and pulled out between the rear door 22 and the rear of the cabinet, further improving the convenience in installation and removal operations.

[0107] In some embodiments, a partition 18 installed on the cabinet body 1 divides the cabinet opening 11 into multiple sections. Each of the separated cabinet openings 11 is equipped with a door body 2, that is, each cabinet opening 11 is sealed with a fixed rear door 22 and a sliding front door 21. A pressure strip 7 is installed on the partition 18, that is, each cabinet opening 11 has a pressure strip 7 on both sides. In this case, the partition 18 is part of the cabinet opening 11, and the relevant components or structures for mounting or cooperating with the door body described in this application are formed on the partition 18 as needed. Please refer to other embodiments for reference and will not be repeated here.

[0108] Multiple cabinet openings 11 can be opened and closed simultaneously, improving the efficiency of accessing items from the display cabinet. The front end of the rear door 22 is stacked on the rear end of the front door 21, ensuring that condensation does not seep through the gaps between the cabinet openings 11. Furthermore, the edge strips 7 on the partition 18 are provided with covering portions 71 on both sides, as both sides require the installation of front doors 21. These cover portions 71 limit the position of the corresponding front doors 21, ensuring that both front doors 21 have anti-tampering properties.

[0109] In some embodiments, a structure of a pressure strip 7 provided on the partition 18 is provided. The pressure strips installed on both sides of the cabinet body can also refer to the following structure, the difference being that the covering portion is formed only on the side located above the front door. As shown in Figures 14a to 15, the bottom surface of the pressure strip 7 has a downwardly protruding mounting portion 72, and the mounting portion 72 has an assembly groove 73. The pressure strip 7 can be buckled onto the cabinet opening 11 (i.e., the partition 18), and the cabinet opening 11 (i.e., the partition 18) is inserted into the assembly groove 73. By plugging and matching the partition 18 with the assembly groove 73, the pressure strip 7 is easy to install, and the pressure strip 7 can be positioned and installed to ensure that the covering portion 71 is located above the front door after the pressure strip 7 is installed, thereby ensuring the covering portion 71 has a limiting effect on the front door 21. The cabinet opening 11 described below includes the case where the partition 18 is part of the cabinet opening 11.

[0110] In some embodiments, the edge strip 7 is fixed to the cabinet opening 11 by a fixing bolt 74. The fixing bolt 74 passes through the assembly groove 73 from one side of the edge strip 7 and is fixedly connected to the cabinet opening 11. The fixing bolt 74 is installed laterally from the edge strip 7 so that the head of the fixing bolt 74 can only be exposed through the gap between the cover portion 71 and the front door 21, or is blocked by the front door 21. When the front door 21 is closed, it is difficult for a screwdriver to pass through the narrow space to remove the fixing bolt 74, or it is completely impossible to remove the fixing bolt 74. The fixing bolt 74 firmly fixes the edge strip 7 to the cabinet opening 11, improving the anti-disassembly performance of the edge strip 7, thereby ensuring the anti-disassembly performance of the front door 21 and enhancing the anti-theft performance.

[0111] In some embodiments, there are multiple fixing bolts 74, and the upper surface of the cabinet opening 11 is against the inner wall of the assembly groove 73. When the front door 21 closes the cabinet opening 11, at least one fixing bolt 74 is aligned with the front door 21 in the horizontal direction, so that the front door 21 covers at least one fixing bolt 74 from the side.

[0112] At least one fixing bolt 74 is blocked by the front door, and the blocked fixing bolt 74 cannot be removed, thereby maintaining the position of the edge strip 7 and preventing the edge strip 7 from moving horizontally on the plane in which it is located. Furthermore, because the upper surface of the cabinet opening 11 is in close contact with the inner wall of the assembly groove 73, the cooperation between the two prevents the edge strip 7 from being angularly deflected relative to the upper surface of the cabinet opening 11, thereby preventing the edge strip 7 from rising from the cabinet opening 11. By fitting the edge strip 7 with the cabinet opening 11 and keeping it fixed at least at one point by the fixing bolt 74, the edge strip 7 can be firmly fixed to the cabinet opening 11, thereby making the edge strip 7 anti-disassembly, ensuring that the covering portion 71 limits the front door 21, and ultimately maintaining the anti-disassembly of the front door 21 and enhancing the anti-theft performance.

[0113] Figure 16a is a schematic diagram of the front door 21 in a closed state, and Figure 16b is a partial enlarged view of the position of the edge pressure strip 7 installed on the partition 18 in Figure 16a, which can illustrate the state of the fixing bolt 74 when the front door 21 is closed. Figure 17a is a schematic diagram of one side of the front door 21 in an open state, and Figure 17b is a partial enlarged view of the position of the edge pressure strip installed on the partition 18 in Figure 17a, which can illustrate the state of the fixing bolt 74 when the front door 21 is open.

[0114] The fixing bolts 74 at the front and rear ends of the edge strip 7 are aligned with the front door 21 when the front door 21 closes the cabinet opening 11, and the front door 21 blocks the fixing bolts 74 at the front end of the edge strip 7, so that this part of the fixing bolts 74 cannot be removed, and the edge strip 7 remains anti-dismantling and firmly fixed on the cabinet opening 11; the fixing bolts 74 at the rear end of the edge strip 7 are located above the front door 21, so that this part of the fixing bolts 21 is further away from the interior of the cabinet body 1, reducing the influence of the bolt opening on the structure of the cabinet body 1 and ensuring the thermal insulation performance of the cabinet body 1; the fixing bolts 74 located above the front door 21 can also be installed when the front door 21 is closed, which enhances the convenience of installation operation and does not affect the anti-dismantling property of the edge strip 7; the fixing bolts 74 at both ends of the edge strip 7 are staggered in height, so that the coverage area of ​​the fixing points of the edge strip 7 is larger, further improving the firmness of the edge strip 7.

[0115] In some embodiments, as shown in Figures 14a-15, downwardly extending guard plates 75 are provided on both sides of the top surface of the edge strip 7. The guard plates 75 are located outside the mounting portion 72, so that they serve as part of the covering portion 71. The bottom ends of the guard plates 75 are in sliding contact with the top surface of the front door 21, thereby causing the covering portion 71 to slide in contact with the top surface of the front door 21, further enhancing the retaining effect of the covering portion 71 on the front door 21, making it difficult for the front door 21 to be easily removed from the cabinet opening 11 by humans, and thus enhancing the anti-theft performance of the door body 2.

[0116] Furthermore, since the guard plate 75 extends above the front door 21, it not only blocks the fixing bolts 74 from the side but also makes it difficult to reach under the edge strip 7. This further increases the difficulty of removing the fixing bolts 74 when the front door 21 is closed, and also increases the difficulty of manually pulling the edge strip 7, thereby increasing the anti-disassembly performance of the edge strip 7. Second reinforcing ribs 76 are installed between the guard plate 75 and the mounting portion 72. Multiple second reinforcing ribs 76 are arranged from front to back, thereby improving the stability of the guard plate 75 and the overall structural strength of the edge strip 7, preventing deformation of the edge strip 7 under violent pulling, and enhancing the anti-disassembly performance of the edge strip 7.

[0117] In some embodiments, the horizontal display cabinet further includes a door locking structure 9, as shown in Figures 18a to 20b. The door locking structure 9 includes a rotating member 91 and a locking member 92. One end of the rotating member 91 in the longitudinal direction is rotatably connected to the inner wall of the cabinet 11, and the other end of the rotating member 91 in the longitudinal direction is provided with a first connecting portion 911; the locking member 92 is located inside the cabinet 11 and connected to the front door 21. The locking member 92 is arranged near the inner wall of the cabinet where the rotating member 91 is provided. The locking member 92 moves synchronously with the front door 21 and is provided with a second connecting portion 921; the second connecting portion 921 cooperates with the first connecting portion 911 to prevent the locking member 92 and the front door 21 from moving, thereby locking the front door 21 in an open state, as shown in Figure 18a.

[0118] When the front door 21 needs to be locked in the open state, the rotating member 91 is rotated so that the first connecting part 911 is close to the second connecting part 921 of the locking member 92 and connected to the second connecting part 921, so that the rotating member 91 can impose constraints on the front door through the locking member 92, preventing the front door 21 from moving downward under the action of gravity, and preventing the front door 21 from closing the accommodating chamber 12; when the constraint imposed by the rotating member 91 on the front door 21 needs to be released, the first connecting part 911 and the second connecting part 921 are separated from each other and the rotating member 91 is rotated so that the first connecting part 911 is away from the locking member 92. At this time, if there is no external force pushing the front door 21 backward and upward, the front door 21 will close the accommodating chamber 12 under the action of gravity.

[0119] In some embodiments, as shown in Figures 18a to 20b, the first connecting portion 911 is a connecting hole 9111, and the second connecting portion 921 is a connecting column 9211. The connecting column 9211 is disposed in the connecting hole 9111 to connect the rotating member 91 and the locking member 92 to each other.

[0120] In order to facilitate the connection between the first connecting part 911 and the second connecting part 921, as shown in Figure 20b, the second connecting part 921 is located on the side of the locking part 92 away from the inner wall of the cabinet where the rotating part 91 is set, that is, the second connecting part 921 is set toward the accommodating cavity 12, so as to facilitate the user to connect the first connecting part 911 and the second connecting part 921 in the accommodating cavity 12.

[0121] In some embodiments, as shown in Figure 18b, the rotating member 91 is provided with a bending portion 912 that bends toward a direction away from the inner wall of the cabinet where it is located. The bending portion 912 is located in the middle part of the rotating member 91, so that there is a distance between one end of the rotating member 91 where the first connecting portion 911 is set and the inner wall of the cabinet where the rotating member 91 is set, so as to prevent the rotating member 91 and the locking member 92 from interfering with each other.

[0122] It is understood that the rotating member 91 can be deformed in a direction perpendicular to its length so that the first connecting portion 911 can be sleeved around the outer periphery of the second connecting portion 921. When the rotating member 91 applies a constraint to the locking member 92, an external force is used to bend one end of the rotating member 91 provided with the first connecting portion 911 away from the inner wall of the cabinet 11, so that a distance is created between one end of the first connecting portion 911 and the inner wall of the cabinet 11. The front door 21 and the locking member 92 are then moved to align the first connecting portion 911 with the second connecting portion 921. The external force is then removed, so that the first connecting portion 911 is sleeved around the outer periphery of the second connecting portion 921.

[0123] As shown in Figures 19a and 19b, the inner wall of the cabinet body is provided with a rotating part 91 and a limiting column 19. The limiting column 19 is arranged close to the front side of the cabinet body 11, and the limiting column 19 can be extended and retracted relative to the inner wall of the cabinet body; the locking part 92 is provided with a limiting hole 922, and the limiting column 19 is inserted into the limiting hole 922 to lock the front door 21 in the closed state, as shown in Figure 19a.

[0124] In some embodiments, the limiting hole 922 and the second connecting portion 921 are arranged side by side along the front-to-back direction of the cabinet, and the limiting hole 922 is located at the rear side of the second connecting portion 921 .

[0125] To prevent the limit column 19 from affecting the movement of the front door 21, the limit column 19 can be extended and retracted relative to the inner wall of the cabinet. During the movement of the front door 21, the limit column 19 retracts to release the constraint on the front door 21. When the front door 21 is closed, the limit column 19 extends to lock the front door 21.

[0126] Specifically, the cabinet is also equipped with a driving component 101 and a sensing component 102. The driving component 101 can drive the limiting column 19 to extend into the limiting hole 922 or retract from the limiting hole 922. The sensing component 102 is set close to the movement trajectory of the locking member 92 to collect the position information of the locking member 92.

[0127] When the front door 21 needs to be locked in a closed state, the front door 21 drives the locking piece 92 to move. When the sensing component 102 senses that the locking piece 92 is close to the front side of the cabinet 11, the driving component 101 drives the limit column 19 to retract according to the sensing information of the sensing component 102 to prevent the limit column 19 from interfering with the movement of the locking piece 92. When the front door 21 contacts the front side of the cabinet 11 or the locking piece 92 moves to the specified position, the limit column 19 is opposite to the limit hole 922, and the driving component 101 drives the limit column 19 to extend into the limit hole 922, so that the limit column 19 exerts constraints on the front door 21 and locks the front door 21 in the closed state.

[0128] In the above embodiment, the driving component 101 and the sensing component 102 can be implemented using existing conventional devices. For example, the driving component 101 can be implemented using a motor or a cylinder, and the sensing component 102 can be implemented using a sensor. The specific implementation method can be implemented by those skilled in the art based on existing technologies, and this application will not go into details. In addition, in order to control the extension and retraction of the limit column 19, a controller 103 is also provided. The controller 103 is connected to the sensing component 102 and the driving component 101, receives the sensing information of the sensing component 102, and controls the driving component 101 to drive the limit column 19 to extend or retract according to the sensing information, as shown in Figure 21.

Claims

1. A horizontal display cabinet, characterized in that: It comprises a cabinet body, the cabinet body has a cabinet opening, and the cabinet opening is provided with a door body; The door body comprises a front door and a rear door, the rear door is fixedly mounted on the rear side of the cabinet opening, and the front door is slidably mounted on the front side of the cabinet opening; the height position of the front end of the cabinet opening is lower than the height position of the rear end of the cabinet opening, so that the door body is tilted, and the front door slides down under its own weight to close the cabinet opening; The cabinet opening is provided with a track, and the front door has a guide wheel, which slides on the track. A positioning groove is provided on the track. When the front door closes the cabinet opening, the guide wheel is located in the positioning groove and the bottom surface of the front door fits with the surface of the track.

2. The horizontal display cabinet according to claim 1, characterized in that: The positioning groove includes a first positioning groove located at the front end of the track and a second positioning groove located at the rear side of the first positioning groove, and the guide wheel includes a first guide wheel located at the front end of the front door and a second guide wheel located at the rear end of the front door; when the front door closes the cabinet opening, the first guide wheel is located in the first positioning groove, and the second guide wheel is located in the second positioning groove; when the front door opens the cabinet opening, the first guide wheel slides on the track between the first positioning groove and the second positioning groove.

3. The horizontal display cabinet according to claim 2, characterized in that: The rear side of the first positioning groove and the rear side of the second positioning groove are both connected to the surface of the track through an arc surface transition.

4. The horizontal display cabinet according to claim 2, characterized in that: The door body is provided with a limit device for limiting the opening degree of the front door when the front door opens the cabinet opening to prevent the opening degree of the front door from exceeding the maximum opening state; When the front door is in the maximum open state, the first guide wheel is located at the front side of the second positioning groove.

5. The horizontal display cabinet according to claim 4, characterized in that: The limiting device is a handle, which is installed on the top surface of the front door; the front end of the rear door is overlapped above the front door, and when the front door moves until the handle is against the front end of the rear door, the front door is in the maximum open state.

6. The horizontal display cabinet according to claim 1, characterized in that: It further includes a camera, which is installed in the cabinet below the front door and is used to photograph the goods in the cabinet.

7. The horizontal display cabinet according to claim 1, characterized in that: A power buffer device is installed on the cabinet body, and a cover shell is installed on the cabinet opening. The cover shell covers the power buffer device, and the cover shell has a connecting groove. A protrusion is provided on the front door, and the protrusion is connected to the power buffer device in the connecting groove. During the sliding process of the front door, the protrusion moves in the connecting groove and the front door is slowly closed under the action of the power buffer device.

8. The horizontal display cabinet according to claim 7, characterized in that: The track includes a first track segment arranged on the cover shell and a second track segment arranged on the inner wall of the cabinet body, the first positioning groove is located in the first track segment, and the second positioning groove is located in the second track segment.

9. The horizontal display cabinet according to claim 8, characterized in that: A accommodating cavity is defined inside the cabinet, the lower portion of the cover shell protrudes toward the accommodating cavity and a support platform is formed on the top of the protruding portion, the top surface of the support platform serves as the first track segment, and the outer side of the support platform facing away from the accommodating cavity has a first reinforcing rib, and the first reinforcing rib is located below the first track segment.

10. The horizontal display cabinet according to claim 7, characterized in that: The cover shell is provided with a plurality of first plug-in boards, and a plurality of first sockets are correspondingly opened on the inner wall of the cabinet. The first sockets match the shapes of the first plug-in boards so that the first plug-in boards can be inserted therein, thereby fixing the cover shell on the cabinet.

11. The horizontal display cabinet according to claim 10, characterized in that: The first plug board is provided with a limiting portion, which includes a first limiting plate arranged horizontally and a second limiting plate arranged vertically, the first limiting plate and the second limiting plate intersect, the first limiting plate limits the vertical movement of the cover shell, and the second limiting plate limits the horizontal movement of the cover shell.

12. The horizontal display cabinet according to claim 10, characterized in that: The cover shell has a plurality of second sockets, and a plurality of second plug-in boards correspondingly arranged on the inner wall of the cabinet are plugged into the second sockets.

13. The horizontal display cabinet according to claim 1, characterized in that: The front end of the rear door is stacked on the rear end of the front door; installation grooves are provided on both sides of the cabinet opening, the rear end of the installation grooves extends to the rear side of the cabinet body and is provided with ports, and both sides of the rear door are plugged into the corresponding installation grooves through corresponding ports; pressure strips are installed on both sides of the cabinet opening, and the pressure strips have a covering portion extending above the front door to limit the front door from upwardly detaching from the cabinet opening.

14. The horizontal display cabinet according to claim 13, characterized in that: A limit block is installed in the space between the rear of the cabinet and the rear door, and the rear of the cabinet presses the limit block, and the limit block is pressed on the rear end of the rear door, and the front end of the rear door is pressed on the front end inner wall of the installation groove; the limit block is installed on the cabinet through a fastening bolt, and the limit block has a vertically arranged waist hole, and the fastening bolt passes through the waist hole. By loosening the fastening bolt, the limit block can be lifted and lowered relative to the fastening bolt through the waist hole and leave the rear end of the rear door, so that the rear door can be pulled out and removed from the installation groove through the port.

15. The horizontal display cabinet according to claim 14, characterized in that: An assembly window is provided at the rear side of the cabinet body, and ports of the two installation slots are exposed from the assembly window so that the rear door can pass through the assembly window and be plugged into the installation slots. A cover plate is provided on the assembly window to close the assembly window.

16. The horizontal display cabinet according to claim 13, characterized in that: The partition installed on the cabinet body divides the cabinet opening into multiple parts, and each of the multiple cabinet openings is correspondingly installed with a door body. The partition is installed with a pressure strip; the bottom surface of the pressure strip has a downwardly protruding installation portion, and the installation portion has an assembly groove. The cabinet opening is inserted into the assembly groove to install the pressure strip on the cabinet opening.

17. The horizontal display cabinet according to claim 16, characterized in that: The pressure edge strip is fixedly mounted on the cabinet opening by fixing bolts, and the fixing bolts are inserted into the assembly groove from one side of the pressure edge strip and fixedly connected to the cabinet opening; there are multiple fixing bolts, and the upper surface of the cabinet opening is against the inner wall of the assembly groove. When the front door closes the cabinet opening, at least one fixing bolt is aligned with the front door in the horizontal direction, so that the front door covers at least one fixing bolt from the side.

18. The horizontal display cabinet according to claim 16, characterized in that: Both sides of the top surface of the pressure edge strip have downwardly extending guard plates, and the guard plates are located on the outside of the mounting portion so that they are located above the front door. The bottom end of the guard plate is in sliding contact with the top surface of the front door, and a second reinforcing rib is installed between the guard plate and the mounting portion. A plurality of second reinforcing ribs are arranged from front to back.

19. The horizontal display cabinet according to claim 1, characterized in that: It also includes a door locking structure, which includes: A rotating member, one end of which in the length direction is rotatably connected to the inner wall of the cabinet, and the other end of which in the length direction is provided with a first connecting portion; A locking member, which is located inside the cabinet and connected to the front door, the locking member is arranged close to the inner wall where the rotating member is arranged, the locking member moves synchronously with the front door, and the locking member is provided with a second connecting portion; The second connecting portion cooperates with the first connecting portion to prevent the locking member and the front door from moving, thereby locking the front door in an open state.

20. The horizontal display cabinet according to claim 19, characterized in that: The first connecting portion is a connecting hole, the second connecting portion is a connecting column, and the connecting hole is sleeved on the outer circumference of the connecting column so that the rotating member and the locking member are connected to each other.

21. The horizontal display cabinet according to claim 19, characterized in that: The second connecting portion is located on the side of the locking member away from the inner wall of the cabinet where the rotating member is provided, and the rotating member is provided with a bending portion bent toward the direction away from the inner wall of the cabinet where it is located, and the bending portion is located in the middle part of the rotating member, so that there is a distance between the end of the rotating member where the first connecting portion is provided and the inner wall of the cabinet where the rotating member is provided for the locking member to be provided.

22. The horizontal display cabinet according to claim 19, characterized in that: The cabinet is provided with an inner wall of the rotating part and a limiting column. The limiting column is arranged close to the front side of the cabinet. The limiting column can be extended and retracted relative to the inner wall of the cabinet. The locking part is provided with a limiting hole. The limiting column is extended and inserted into the limiting hole to lock the front door in a closed state.

23. The horizontal display cabinet according to claim 1, characterized in that: The front side of the cabinet opening is provided with a water retaining platform, the front end of the front door is located above the water retaining platform, and the front side of the water retaining platform is provided with a drainage groove.

24. A method for using the horizontal display cabinet according to claim 2, characterized in that: The following steps are involved: S1: The first arm pushes the front door backward, pushes the first guide wheel out of the first positioning groove, and pushes the second guide wheel out of the second positioning groove; S2: the first arm further pushes the front door backward, pushes both the first guide wheel and the second guide wheel onto the track surface, and slides backward along the track until an open space is formed between the front end of the front door and the front end of the cabinet opening so that the arm can pass through; S3: The first arm holds the front door to keep the front door suspended, and the second arm extends into the cabinet through the open space to take the goods in the cabinet; S4: The first arm leaves the front door, and under the weight of the front door, the first guide wheel and the second guide wheel slide forward along the track until the first guide wheel and the second guide wheel fall into the first positioning groove and the second positioning groove respectively, and the front door closes the cabinet opening.

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