Door plate lifting mechanism and door box equipment

Abstract

The utility model relates to a door plate lifting mechanism and door box equipment, which can automatically lift a door plate in a door opening process, so that not only is the structural interference between the door plate and a skirting board avoided, but also a gap between the door plate and the skirting board is narrowed as much as possible, and the use experience of a user is improved. The door plate lifting mechanism comprises a hinge base frame used for being fixedly connected with a box body assembly; the hinge support is rotatably arranged on the hinge base frame and used for being fixedly connected with a frame of a door body assembly; the positioning piece is convexly arranged on the hinge base frame; the guide assembly is arranged on the hinge bracket; and the flexible part firstly extends from the positioning part to bypass the guide assembly, and then extends downwards from the guide assembly to be connected with the plate body of the door body assembly.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a door panel lifting mechanism and door box device. Background Technology

[0002] Door-mounted appliances, such as built-in dishwashers, are commonly used home appliances. To increase the cavity capacity, these appliances typically achieve this by compressing the base height. Furthermore, to improve the cavity's sealing effect, the pivot point of the door assembly is lowered along with the reduced base height. This leads to increased interference between the door assembly and the kick plate during opening and closing, requiring more kick plate cutting to ensure smooth door opening and closing. This results in a larger gap between the door assembly and the kick plate when the door is closed. For example, for a 100mm high kick plate, the actual installation process usually requires cutting the kick plate to 70mm. This leaves at least a 30mm gap between the door assembly and the kick plate when the door is closed, severely impacting the user experience. Utility Model Content

[0003] Therefore, it is necessary to address the problem of interference between the door assembly and the kick plate during the opening and closing process in existing door box equipment. This application provides a door panel lifting mechanism and a door box equipment that can automatically lift the door panel during the opening process, which not only avoids structural interference between the door panel and the kick plate, but also minimizes the gap between the door panel and the kick plate, thereby improving the user experience.

[0004] In one embodiment of this application, a door panel lifting mechanism is provided, comprising:

[0005] Hinged base frame, used for fixed connection with the housing assembly;

[0006] A hinge bracket is rotatably mounted on the hinge base and is used for fixed connection with the frame of the door assembly;

[0007] Positioning element, protruding from the hinge base frame;

[0008] Guide components are disposed on the hinge bracket; and

[0009] A flexible element that extends from the positioning element to bypass the guide assembly and then extends downward from the guide assembly to connect to the plate of the door assembly.

[0010] In one embodiment of this application, the flexible element is a pull rope, wherein the two ends of the pull rope are respectively limited and connected to the two positioning elements, and the middle part of the pull rope is used for limited and connected to the plate.

[0011] In one embodiment of this application, the door panel lifting mechanism further includes a lifting tube fitted onto the pull rope and a hook for fixing to the panel; the hook is hooked onto the lifting tube.

[0012] In one embodiment of this application, the positioning element is a rivet protruding from the hinge base; the end of the pull rope is sleeved on the rivet.

[0013] In one embodiment of this application, the guiding assembly includes a first guide wheel arranged adjacent to the hinge base and a second guide wheel arranged away from the hinge base; the flexible member extends upward from the positioning member, first around the first guide wheel, and then extends downward around the second guide wheel.

[0014] In one embodiment of this application, the door panel lifting mechanism further includes a limiting post protruding from the hinge base; the limiting post is located above the plane where the positioning member and the first guide wheel are located; the flexible member extends obliquely upward from the positioning member to bypass the limiting post, and then extends obliquely downward to bypass the first guide wheel.

[0015] According to another aspect of this application, this application further provides a door box device, including:

[0016] Enclosure assembly;

[0017] A door assembly, including a frame and a plate slidably disposed on the frame; and

[0018] The door panel lifting mechanism described in any of the preceding claims is disposed between the housing assembly and the door assembly, for lifting the panel relative to the frame during the opening process.

[0019] In one embodiment of this application, the two hinge base frames of the door panel lifting mechanism are respectively disposed on the left and right sides of the housing assembly; the two hinge brackets of the door panel lifting mechanism are respectively disposed on the left and right sides of the frame, corresponding one-to-one with the hinge base frames.

[0020] In one embodiment of this application, the door assembly further includes a panel frame mounted on the frame and having a sliding groove, and a sliding buckle fixed to the panel and inserted into the sliding groove; the sliding groove has an upper opening and a lower slot extending downward from the upper opening; the sliding buckle is inserted from the upper opening to slidably engage with the lower slot.

[0021] In one embodiment of this application, the door box device further includes an elastic component disposed between the box assembly and the door assembly, for applying a tensile torque to the door assembly in the opposite direction to the gravitational torque of the door assembly.

[0022] In summary, since the total length of the flexible component remains constant, its length between the positioning component and the guide assembly gradually increases as the door opening angle increases and gradually decreases as the door opening angle decreases. Therefore, the length of the flexible component between the guide assembly and the plate gradually decreases as the door opening angle increases, allowing it to lift the plate upwards to slide away from the kick plate. Similarly, the length of the flexible component between the guide assembly and the plate gradually increases as the door opening angle decreases, allowing it to release the plate downwards to allow it to slide closer to the kick plate. This avoids structural interference between the plate and the kick plate without cutting the kick plate, ensuring that the gap between the plate and the kick plate is as small as possible when the door assembly is closed, improving the overall aesthetics of the device and enhancing the user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing the state of a door box device when it has completed closing, according to one embodiment of this application.

[0024] Figure 2 It shows Figure 1 The diagram shows a cross-sectional view of the door box equipment.

[0025] Figure 3 A schematic diagram showing the state of the door box device according to the above embodiments of this application when the door is opened;

[0026] Figure 4 It shows Figure 3 The diagram shows a cross-sectional view of the door box equipment.

[0027] Figure 5 An exploded view of the door assembly in the door box device according to the above embodiments of this application is shown;

[0028] Figure 6 This diagram shows the state of the door panel lifting mechanism in the door box equipment when the door is closed.

[0029] Figure 7 This diagram shows the state of the door panel lifting mechanism in the door box equipment when the door is opened.

[0030] Explanation of key component symbols:

[0031] 10. Door panel lifting mechanism; 11. Hinge base frame; 12. Hinge bracket; 13. Positioning component; 14. Guide assembly; 141. First guide wheel; 142. Second guide wheel; 15. Flexible component; 16. Lifting tube; 17. Hook; 18. Limiting post; 20. Box assembly; 30. Door assembly; 31. Frame; 32. Panel; 33. Panel frame; 330. Slide groove; 331. Upper opening; 332. Lower slot; 34. Sliding buckle; 35. Inner door; 36. Middle door; 40. Elastic component; 41. Elastic component; 42. Connector; 43. First roller; 44. Second roller.

[0032] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this application. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Considering that existing door box devices experience significant interference between the door assembly and the kick plate during opening and closing, requiring the cutting of more kick plates to ensure smooth door opening and closing, and resulting in an increased gap between the door assembly and the kick plate when the door box is closed, the applicant has designed a door panel lifting mechanism and door box device that automatically lifts the door panel during opening. This not only avoids structural interference between the door panel and the kick plate but also minimizes the gap between them, improving the user experience.

[0038] Specifically, see the attached document. Figures 1 to 7 As shown, one embodiment of this application provides a door box device, which may include a box assembly 20, a door assembly 30, and a door panel lifting mechanism 10 disposed between the box assembly 20 and the door assembly 30. The door assembly 30 includes a frame 31 and a plate 32 slidably disposed on the frame 31. The door panel lifting mechanism 10 is used to lift the plate 32 relative to the frame 31 during the opening process, so that the plate 32 slides away from the baseboard, thereby avoiding structural interference between the plate 32 and the baseboard without cutting the baseboard. In other words, during the closing process, the plate 32 of the door assembly 30 slides relative to the frame 31 towards the baseboard, so that the gap between the plate 32 and the baseboard is small enough when the door is closed, ensuring the overall aesthetics of the door box device and improving the user experience. It is understood that the door cabinet device of this application may be implemented as other embedded devices such as embedded dishwashers or embedded refrigerators; in addition, the door cabinet device of this application may also include, but is not limited to, functional subjects capable of performing functions such as washing dishes or refrigeration, which will not be elaborated here.

[0039] More specifically, such as Figures 1 to 7As shown, the door panel lifting mechanism 10 may include a hinge base frame 11 fixedly connected to the housing assembly 20, a hinge bracket 12 rotatably disposed on the hinge base frame 11 and fixedly connected to the frame 31 of the door assembly 30, a positioning member 13 fixedly disposed on the hinge base frame 11, a guide assembly 14 disposed on the hinge bracket 12, and a flexible member 15; the flexible member 15 first extends from the positioning member 13 to bypass the guide assembly 14, and then extends downward from the guide assembly 14 to connect to the plate 32 of the door assembly 30. It is understood that in other embodiments of this application, the positioning member 13 may also be fixedly disposed on the housing assembly 20; the guide assembly 14 may also be disposed on the frame 31 of the door assembly 30, which will not be described in detail here.

[0040] Thus, as Figure 2 , Figure 4 , Figure 6 as well as Figure 7 As shown, during the opening process, the frame 31 of the door assembly 30 drives the hinge bracket 12 to rotate relative to the hinge base frame 11, causing the flexible member 15 to lengthen between the positioning member 13 and the guide component 14. This allows the flexible member 15 to lift the plate 32 upwards, sliding it away from the baseboard and avoiding structural interference with it. Similarly, during the closing process, the frame 31 of the door assembly 30 drives the hinge bracket 12 to rotate in the opposite direction relative to the hinge base frame 11, causing the flexible member 15 to shorten between the positioning member 13 and the guide component 14. This allows the flexible member 15 to release the plate 32 downwards, allowing it to slide towards the baseboard under its own weight, minimizing the gap with the baseboard.

[0041] It is worth noting that, since the total length of the flexible member 15 remains constant, the length of the flexible member 15 between the positioning member 13 and the guide assembly 14 gradually increases as the door opening angle increases and gradually decreases as the door opening angle decreases. Therefore, the length of the flexible member 15 between the guide assembly 14 and the plate 32 gradually decreases as the door opening angle increases, which is used to lift the plate 32 upward to slide it away from the kick plate. Similarly, the length of the flexible member 15 between the guide assembly 14 and the plate 32 gradually increases as the door opening angle decreases, which is used to release the plate 32 downward to allow the plate 32 to slide towards the kick plate. This avoids structural interference between the plate 32 and the kick plate without cutting the kick plate, ensuring that the gap between the plate 32 and the kick plate is as small as possible when the door assembly 30 is closed, improving the overall aesthetics of the device and enhancing the user experience.

[0042] It is understood that the hinge bracket 12 can be rotatably connected to the hinge base 11 via a pin to form a positioning hinge, so that the rotation center of the door assembly 30 relative to the housing assembly 20 remains fixed during the opening and closing of the door. Of course, the hinge bracket 12 can also be rotatably connected to the hinge base 11 via a linkage assembly to form a displacement hinge, so that the rotation center of the door assembly 30 relative to the housing assembly 20 changes during the opening and closing of the door; this application will not elaborate further on this aspect.

[0043] For example, such as Figures 1 to 7 As shown, two hinge base frames 11 are respectively disposed on the left and right sides of the housing assembly 20; two hinge brackets 12 are respectively disposed on the left and right sides of the frame 31, corresponding one-to-one with the hinge base frames 11. The flexible member 15 is implemented as a pull rope, wherein the two ends of the pull rope are respectively limited and connected to the two positioning members 13, and the middle part of the pull rope is limited and connected to the plate 32, so that the plate 32 of the door assembly 30 can be lifted synchronously during the opening process using only one pull rope, which helps to reduce the assembly difficulty of the door panel lifting mechanism 10. It is understood that the limiting connection mentioned in this application can be implemented in a way that includes, but is not limited to, hooking, sleeve, bolting, hanging, or fixing, as long as the pull rope can be relatively fixed to the hinge base frame 11 and the plate 32.

[0044] Optionally, such as Figure 6 and Figure 7 As shown, the door panel lifting mechanism 10 also includes a lifting tube 16 fitted onto the pull rope and a hook 17 fixed to the plate 32. The hook 17 is hooked onto the lifting tube 16 so as to indirectly fix the middle part of the pull rope to the plate 32, which helps to improve the operational stability of the door panel lifting mechanism 10.

[0045] Optionally, such as Figure 2 and Figure 4 As shown, two hooks 17 are arranged at intervals on the plate 32 and simultaneously hook the lifting tube 16. It can be understood that the lifting tube 16 fitted on the pull rope can be placed horizontally in the center, so that the two hooks 17 hooking the lifting tube 16 are kept on the same horizontal plane, which facilitates the smooth lifting of the plate 32.

[0046] Optionally, such as Figure 6 and Figure 7 As shown, the positioning element 13 is implemented as a rivet protruding from the hinge base 11, and the end of the pull rope is fitted onto the rivet to achieve a fixed connection.

[0047] Optionally, such as Figure 6 and Figure 7As shown, the guide assembly 14 includes a first guide wheel 141 arranged adjacent to the hinge base 11 and a second guide wheel 142 arranged away from the hinge base 11; the flexible member 15 extends upward from the positioning member 13, first around the first guide wheel 141, and then extends downward around the second guide wheel 142 to pass through the lifting tube 16, so as to reduce the wear of the flexible member 15 during the opening and closing process and extend the service life of the flexible member 15.

[0048] Optionally, such as Figure 6 and Figure 7 As shown, the door panel lifting mechanism 10 also includes a limiting post 18 protruding from the hinge base 11, which abuts against the hinge bracket 12 when the door is opened to prevent the hinge bracket 12 from rotating further, so as to keep the door assembly 30 stably in the open state and prevent the door assembly 30 from hitting the kick plate due to excessive opening angle.

[0049] Preferably, such as Figure 6 and Figure 7 As shown, the limiting post 18 is located above the plane where the positioning member 13 and the first guide wheel 141 are located. The flexible member 15 extends obliquely upward from the positioning member 13 to bypass the limiting post 18, and then extends obliquely downward to bypass the first guide wheel 141. This makes the part of the flexible member 15 located between the positioning member 13 and the limiting post 18 remain stationary during the opening and closing of the door. This helps to shorten the moving part of the flexible member 15 between the positioning member 13 and the first guide wheel 141, and further improves the structural stability of the door panel lifting mechanism 10.

[0050] According to the above embodiments of this application, as Figure 5 As shown, the door assembly 30 also includes a panel frame 33 installed on the frame 31 and having a slide groove 330, and a sliding buckle 34 fixed to the plate 32 and inserted into the slide groove 330, so as to restrict the plate 32 from sliding relative to the frame 31 in the vertical direction and prevent the plate 32 from falling off.

[0051] Optionally, such as Figure 5 As shown, the slide 330 has an upper opening 331 and a lower groove 332 extending downward from the upper opening 331; the sliding buckle 34 is inserted into the upper opening 331 and slidably latches onto the lower groove 332 to prevent the plate 32 from detaching from the frame 31 during the opening and closing of the door. It is understood that both the lower groove 332 and the sliding buckle 34 may have, but are not limited to, an L-shaped structure, such that the L-shaped flanges of the sliding buckle 34 and the lower groove 332 engage with each other, preventing the plate 32 from detaching from the frame 31 and allowing it to slide up and down only along the slide 330.

[0052] It is worth noting that the panel 32 mentioned in this application usually refers to the outer door of the door assembly 30, so that the outer door can slide down to the ground when closed, and even eliminate the need for a kick plate, ensuring the overall aesthetics of the door box equipment; while when open, the outer door slides up to avoid interference between the bottom of the door panel and the kick plate.

[0053] Furthermore, in the above embodiments of this application, such as Figures 2 to 5 As shown, the door assembly 30 may further include an inner door 35 fixed to the frame 31 and a middle door 36 located between the inner door 35 and the panel 32; the panel frame 33 is located above the middle door 36 and is used to install the control panel; the middle door 36 has a through groove corresponding to the hook 17 to avoid structural interference between the hook 17 and the middle door 36 during the opening and closing of the door.

[0054] According to the above embodiments of this application, as Figure 1 and Figure 3 As shown, the door box device may further include an elastic component 40 disposed between the box assembly 20 and the door assembly 30, for applying a pulling torque to the door assembly 30 in the opposite direction to the gravitational torque of the door assembly 30, so as to achieve torque balance during the opening and closing process, so that the door assembly 30 can be suspended relative to the box assembly 20 to realize the door suspension function; at the same time, it can also prevent the door assembly 30 from generating a large impact sound due to the excessive opening speed.

[0055] Optionally, such as Figure 1 and Figure 3 As shown, the elastic component 40 may include an elastic element 41 installed on the housing assembly 20 and a connector 42 connected at both ends to the elastic element 41 and the hinge bracket 12, respectively. The connector 42 pulls the hinge bracket 12 under the action of the elastic element 41 to apply a tensile torque to the door assembly 30. It is understood that the elastic element 41 mentioned in this application may be, but is not limited to, a tension spring or a compression spring; the connector 42 mentioned in this application may be, but is not limited to, a pull rope.

[0056] It is worth noting that the front end of the elastic element 41 can be adjusted and connected to the front of the housing assembly 20 by means of a snap-fit ​​plate and an adjusting screw. In this way, when the adjusting screw is rotated, the position of the front end of the elastic element 41 will change, thereby changing the preload tension of the elastic element 41 to adapt to the weight changes of the door assembly 30, thus meeting the suspension requirements of doors of different weights.

[0057] In addition, such as Figure 1 and Figure 3As shown, the elastic component 40 may further include a first roller 43 disposed at the rear of the housing assembly 20 and a second roller 44 disposed on the housing assembly 20 and adjacent to the hinge base 11; the connector 42 first passes backward around the first roller 43 from the rear end of the elastic component 41, and then passes forward around the second roller 44 to connect upward to the hinge bracket 12. In this way, the portion of the connector 42 between the first roller 43 and the hinge bracket 12 is recessed downward under the action of the second roller 44, which not only increases the lever arm of the connector 42 applying tension to the hinge bracket 12, but also restricts the connector 42 to the bottom of the housing assembly 20, so as to avoid other functional components such as air intake and exhaust components and water tank components on the housing assembly 20, and reduce the difficulty of arrangement.

[0058] It is understood that in other embodiments of this application, the door box device may further include a drive mechanism (not shown in the figure) drivenly connected to the elastic member 41, for adjusting the magnitude of the pulling torque applied by the connector 42 to the door assembly 30, so as to break the torque balance and realize the automatic opening and closing of the door box device. This application will not elaborate further on this.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application's patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application.

Claims

1. A door panel lifting mechanism, characterized in that, include: Hinged base frame, used for fixed connection with the housing assembly; A hinge bracket is rotatably mounted on the hinge base and is used for fixed connection with the frame of the door assembly; Positioning element, protruding from the hinge base frame; A guide assembly is disposed on the hinge bracket; as well as A flexible element that extends from the positioning element to bypass the guide assembly and then extends downward from the guide assembly to connect to the plate of the door assembly.

2. The door panel lifting mechanism according to claim 1, characterized in that, The flexible component is a pull rope, wherein both ends of the pull rope are respectively connected to the two positioning components for limiting, and the middle part of the pull rope is used for limiting connection with the plate body.

3. The door panel lifting mechanism according to claim 2, characterized in that, The door panel lifting mechanism also includes a lifting tube fitted onto the pull rope and a hook for fixing to the panel; the hook is hooked onto the lifting tube.

4. The door panel lifting mechanism according to claim 2 or 3, characterized in that, The positioning element is a rivet protruding from the hinge base; the end of the pull rope is sleeved on the rivet.

5. The door panel lifting mechanism according to any one of claims 1 to 3, characterized in that, The guiding assembly includes a first guide wheel arranged adjacent to the hinge base and a second guide wheel arranged away from the hinge base; the flexible member extends upward from the positioning member, first around the first guide wheel, and then extends downward around the second guide wheel.

6. The door panel lifting mechanism according to claim 5, characterized in that, The door panel lifting mechanism also includes a limiting post protruding from the hinge base; the limiting post is located above the plane where the positioning member and the first guide wheel are located; the flexible member extends obliquely upward from the positioning member to bypass the limiting post, and then extends obliquely downward to bypass the first guide wheel.

7. Door box equipment, characterized in that, include: Enclosure assembly; A door assembly, including a frame and a plate slidably disposed on the frame; as well as The door panel lifting mechanism as described in any one of claims 1 to 6, wherein the door panel lifting mechanism is disposed between the housing assembly and the door assembly for lifting the panel relative to the frame during the opening process.

8. The door box device according to claim 7, characterized in that, The two hinge base frames of the door panel lifting mechanism are respectively arranged on the left and right sides of the housing assembly; the two hinge brackets of the door panel lifting mechanism are respectively arranged on the left and right sides of the frame, corresponding one-to-one with the hinge base frames.

9. The door box device according to claim 7, characterized in that, The door assembly further includes a panel frame mounted on the frame and having a sliding groove, and a sliding buckle fixed to the panel and inserted into the sliding groove; the sliding groove has an upper opening and a lower slot extending downward from the upper opening; the sliding buckle is inserted from the upper opening to slidably engage with the lower slot.

10. The door box device according to claim 7, characterized in that, The door box device further includes an elastic component disposed between the box assembly and the door assembly, for applying a tensile torque to the door assembly in the opposite direction to the gravitational torque of the door assembly.

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