Door body assembly and lifting door

Abstract

The utility model relates to the technical field of industrial doors, and discloses a door body assembly and a lifting door, the door body assembly comprises a door plate and a window door plate structure, the window door plate structure is hinged with the door plate, and the window door plate structure comprises a frame and a transparent plate arranged on the inner side of the frame. In the embodiment, the independent window door plate structure is additionally arranged, the transparent plate on the window door plate structure is used for perspective, on one hand, the window door plate structure is independently designed, the structural strength of the window door plate structure is good, and the overall structural strength of the door body assembly is guaranteed, and on the other hand, the area of the transparent plate on the inner side of the frame is relatively large; visual field expansion and visual effect improvement are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial doors, in particular to a door body component and a lifting door. Background Art

[0002] The lifting door is an industrial door used in industrial plants. It is widely used as a factory door because of its high sealing and safety performance.

[0003] Lifting doors are usually made of metal plates, and most of the door panels of lifting doors are composed of opaque panels, making it difficult to see the situation inside the factory. For this reason, some lifting doors with transparent windows have appeared on the market. These lifting doors usually have windows on their door panels, and transparent panels are placed in the windows, so that the situation inside the factory can be observed through the transparent panels.

[0004] However, the above method requires opening a window on the door panel of the lifting door, which will weaken the door panel and make it easy to deform and damage, thus affecting the overall structural stability of the lifting door. Utility Model Content

[0005] The embodiments of the utility model aim to provide a door body assembly and a lifting door, so as to solve the technical problem in the prior art that a window needs to be opened on the door panel of the lifting door, resulting in weakened structural strength of the door panel.

[0006] The embodiment of the utility model solves the technical problem by adopting the following technical solution: a door assembly is provided, comprising:

[0007] Door panels;

[0008] A window door panel structure is hinged to the door panel, and the window door panel structure comprises a frame and a transparent panel arranged on the inner side of the frame.

[0009] In some embodiments, the frame includes two first frames and two second frames that are oppositely disposed, the adjacent first frames and second frames are fixedly connected, and the two first frames and the two second frames are arranged to form the frame;

[0010] The transparent plate is plugged and matched with the first frame and the second frame respectively.

[0011] In some embodiments, a first plugging groove is opened on the inner side of the two first frames, and a second plugging groove is opened on the inner side of the two second frames. The opposite ends of the transparent plate along the width direction are respectively inserted into the first plugging groove; the opposite ends of the transparent plate along the length direction are respectively inserted into the second plugging groove.

[0012] In some embodiments, a first clamping portion is provided at the edge of the transparent plate, a second clamping portion is provided on the inner side wall of the first plug-in slot, and the first clamping portion is clamped and matched with the second clamping portion;

[0013] The first clamping portion and the second clamping portion are a clamping slot and a clamping strip for each other, and the length directions of the clamping slot and the clamping strip are parallel to the length direction of the door panel.

[0014] In some embodiments, the window door panel structure further includes a vertical frame, wherein the vertical frame is located between the two second frame frames, and two ends of the vertical frame are respectively connected to the two first frame frames.

[0015] In some embodiments, the transparent plates include at least two pieces, two adjacent transparent plates are separated by the vertical frame, and the two adjacent transparent plates are plugged into and matched with the vertical frame.

[0016] In some embodiments, two ends of the vertical frame are slidably mounted on the two first side frames respectively.

[0017] In some embodiments, bosses are respectively provided at both ends of the vertical frame, and the two bosses are respectively installed in the corresponding first plug-in slots.

[0018] In some embodiments, the door assembly further includes two sets of hinge assemblies and a plurality of back panels;

[0019] Two groups of hinge assemblies are arranged opposite to each other, each group of hinge assemblies includes a plurality of hinge units and a plurality of wheel assemblies, two adjacent hinge units are hingedly connected through the wheel axles of the wheel assemblies, the hinge unit includes a hinge body and a support plate fixedly connected to the inner side of the hinge body, and the door panel and the window door panel structure are respectively located between the two groups of hinge units arranged opposite to each other;

[0020] Each of the back panels and each of the hinge units are plug-fitted, and each of the back panels is respectively limitedly matched with each of the support panels, so as to respectively clamp the door panel and the window door panel structure between the corresponding back panels and the support panels.

[0021] In some embodiments, the window door panel structure further includes a sealing strip, an installation cavity is opened on the outer side of the frame, and the sealing strip is clamped in the installation cavity and abuts against the adjacent door panel.

[0022] The embodiments of the utility model also adopt the following technical solution to solve the technical problem: a lifting door is provided, comprising the door body assembly described in any of the above embodiments.

[0023] Compared with the prior art, in the door body assembly and lifting door provided in the embodiments of the utility model, an additional window door panel structure is provided, and a transparent plate on the window door panel structure is used for perspective. On the one hand, the window door panel structure is an independent design, and the structural strength of the window door panel structure is good, which ensures the overall structural strength of the door body assembly. On the other hand, the area of ​​the transparent plate on the inner side of the frame is relatively large, which is conducive to expanding the field of view and improving the visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a lifting door provided by an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the assembly structure of the window door panel structure in the embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the exploded structure of the window door panel structure in the embodiment of the utility model;

[0028] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the first frame in the embodiment of the utility model;

[0030] Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the central window door panel structure along the BB direction;

[0031] Figure 7 This is a schematic diagram of the assembly structure of the window door panel structure in another embodiment of the utility model;

[0032] Figure 8 It is a schematic diagram of the exploded structure of the window door panel structure in another embodiment of the utility model;

[0033] Fig. 9 It is a three-dimensional structural schematic diagram of a vertical frame in an embodiment of the utility model;

[0034] Fig.10 It is a three-dimensional structural schematic diagram of the door body assembly, hinge assembly and wheel assembly after being assembled in the embodiment of the utility model;

[0035] Fig.11It is a schematic structural diagram of two adjacent hinge units and a wheel assembly after being assembled in an embodiment of the utility model;

[0036] Fig.12 It is a schematic cross-sectional structure diagram of the hinge unit, door panel and back panel after being assembled in the embodiment of the utility model;

[0037] Fig.13 It is a schematic diagram of the exploded structure of the hinge unit, the door panel and the back panel in the embodiment of the utility model;

[0038] Fig.14 It is a schematic diagram of the exploded structure of the hinge unit in the embodiment of the utility model;

[0039] Fig.15 It is a schematic cross-sectional structure diagram of two adjacent hinge units in an embodiment of the utility model after being assembled with a wheel assembly; Fig.16 It is a schematic diagram of the cross-sectional structure of the first body and the second body after the flanges are riveted together in the embodiment of the utility model;

[0040] Fig.17 It is a cross-sectional structural schematic diagram of a wheel assembly in an embodiment of the utility model;

[0041] Fig.18 This is a schematic diagram of the structure of the rubber wheel in the embodiment of the utility model;

[0042] Fig.19 It is a schematic diagram of the cross-sectional structure of the rubber sleeve in the embodiment of the utility model;

[0043] Fig. 20 It is a schematic diagram of the cross-sectional structure of the rubber wheel in the embodiment of the utility model;

[0044] Fig.21 It is a three-dimensional structural schematic diagram of the wheel bone in the embodiment of the utility model;

[0045] Fig. 22 It is a schematic cross-sectional structure diagram of the rubber wheel in another perspective of the embodiment of the utility model.

[0046] The reference numerals are as shown in the following table:

[0047]

[0048] DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connecting" another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0051] The following will be combined with the attached Figures 1 to 22 The door body assembly and the lifting door provided in the embodiments of the utility model are described in detail.

[0052] See also Figure 1 and Figure 2 The embodiment of the utility model provides a door body assembly 100, including a door panel 10 and a window door panel structure 20, the window door panel structure 20 is hinged to the door panel 10, and the window door panel structure 20 includes a frame 21 and a transparent plate 22 arranged on the inner side of the frame 21.

[0053] Specifically, the door assembly 100 can be applied to a lifting door 1000 or a rolling door. In this embodiment, the door assembly 100 includes a door panel 10 and a window door panel structure 20. The door panel 10 usually has multiple pieces, and the window door panel structure 20 is a plate-shaped structure as a whole, which has one or more pieces, such as Figure 1 The lifting door 1000 shown has a plurality of door panels 10 and two window door panel structures 20, wherein adjacent door panels 10 and window door panel structures 20 are hinged to each other, two adjacent door panels 10 are hinged to each other, and two adjacent window door panel structures 20 are also hinged to each other.

[0054] The door panel 10 is usually made of non-transparent materials, for example, the door panel 10 is made of stainless steel, color steel, galvanized steel, plate steel, aluminum alloy and other materials to ensure the structural strength of the door panel 10. The window door panel structure 20 includes a frame 21 and a transparent plate 22 fixedly arranged on the inner side of the frame 21. The frame 21 can be made of a relatively high-strength material to ensure the overall structural strength of the window door panel structure 20 and improve its anti-deformation ability. The transparent plate 22 is made of a light-transmitting plate material, for example, the transparent plate 22 can be made of transparent glass, transparent plastic and other materials. The situation inside the lifting door 1000 can be observed through the transparent plate 22.

[0055] Compared with the prior art of directly opening a perspective window on the door panel, in this embodiment, an independent window door panel structure 20 is added, and a transparent plate 22 on the window door panel structure 20 is used for perspective. On the one hand, the window door panel structure 20 is an independent design, and the structural strength of the window door panel structure 20 is good, which ensures the overall structural strength of the door body assembly 100. On the other hand, the transparent plate 22 on the inner side of the frame 21 is relatively large in area, which is conducive to expanding the field of view and improving the visual effect.

[0056] Optionally, the window door panel structure 20 has multiple pieces, and the see-through area can be further increased by using the multiple window door panel structures 20, so that the visibility of the door body assembly 100 is larger, and the visual effect is further improved.

[0057] Optionally, the transparent plate 22 can be configured as a single layer or multiple layers, etc. The multiple layers can increase the thickness of the transparent plate 22 to ensure the structural strength of the transparent plate 22 .

[0058] See also Figures 3 to 6 In some embodiments, the frame 21 includes two oppositely disposed first frames 211 and two oppositely disposed second frames 212. The adjacent first frames 211 and second frames 212 are fixedly connected. The two first frames 211 and the two second frames 212 are arranged to form the frame 21. The transparent plate 22 is respectively plugged into and matched with the first frames 211 and the second frames 212.

[0059] like Figure 3 As shown, the frame 21 is a roughly rectangular frame structure, and the frame 21 is formed by two oppositely arranged first frames 211 and two oppositely arranged second frames 212. In this embodiment, the two first frames 211 are long sides, and the two second frames 212 are short sides.

[0060] The transparent plate 22 is a rectangular plate. The opposite ends of the transparent plate 22 along its width direction (the upper and lower ends of the transparent plate 22) are respectively plugged into the two first frames 211, and the opposite ends of the transparent plate 22 along its length direction (the left and right ends of the transparent plate 22) are respectively plugged into the two second frames 212.

[0061] When the transparent plate 22 and the frame 21 are assembled, the two first frames 211 and the two second frames 212 are first plugged into the transparent plate 22 respectively, and then the adjacent first frames 211 and second frames 212 are fixedly connected to complete the assembly between the transparent plate 22 and the frame 21.

[0062] Optionally, the adjacent first frame 211 and second frame 212 are fixedly connected in a detachable manner to facilitate maintenance and replacement of the transparent plate 22. For example, the first frame 211 and the second frame 212 can be fixedly connected by fasteners such as bolts and screws. In addition, the first frame 211 and the second frame 212 can also be fixedly connected by welding or the like.

[0063] like Figure 4 and 5 As shown, in some embodiments, the two second frames 212 are respectively located between the two first frames 211, the first frame 211 is provided with a first threaded hole 2110, and the second frame 212 is provided with a second threaded hole 2120. The first threaded hole 2110 and the second threaded hole 2120 are fastened together by fasteners such as bolts and screws to achieve a fixed connection between the first frame 211 and the second frame 212.

[0064] In some embodiments, a first plugging groove 2111 is provided on the inner side of the two first frames 211, a second plugging groove 2121 is provided on the inner side of the two second frames 212, and the opposite ends of the transparent plate 22 along its width direction are respectively inserted into the two first plugging grooves 2111, and the opposite ends of the transparent plate 22 along its length direction are respectively inserted into the two second plugging grooves 2121.

[0065] In this embodiment, the first frame 211 and the second frame 212 are respectively provided with a first plugging groove 2111 and a second plugging groove 2121 to be plugged into the transparent plate 22 . This method does not damage the overall structure of the transparent plate 22 , thus ensuring the structural strength of the transparent plate 22 .

[0066] See also Figure 5 and Figure 6 In some embodiments, a first clamping portion 220 is provided at the edge of the transparent plate 22 (see Figure 4 ), a second clamping portion 2112 is provided on the inner side wall of the first plug-in slot 2111, the first clamping portion 220 is clamped with the second clamping portion 2112, the first clamping portion 220 and the second clamping portion 2112 are clamping slots and clamping strips to each other, and the length direction of the clamping slots and the clamping strips is parallel to the length direction of the window door panel structure 20.

[0067] For example, the first clamping portion 220 is a clamping slot and the second clamping portion 2112 is a clamping strip, that is, a clamping slot is provided on the transparent plate 22 and a clamping strip is provided on the inner side wall of the first plugging slot 2111, and the sizes of the clamping slot and the clamping strip are matched.

[0068] During assembly, first align the card strip with the card slot, then move the first frame 211 along the length direction of the card slot so that the card strip is inserted into the card slot to complete the assembly between the transparent plate 22 and the first frame 211, then plug and match the second frame 212 with the transparent plate 22, and fix the adjacent first frame 211 and second frame 212 to complete the assembly between the transparent plate 22 and the frame 21.

[0069] After assembly, the upper and lower ends of the transparent plate 22 are always in contact with the two first frames 211 through the clamping cooperation between the first clamping portion 220 and the second clamping portion 2112, thereby improving the compactness of assembly between the transparent plate 22 and the first frames 211 and ensuring the structural strength of the window door panel structure 20. In particular, when the lengths of the two first frames 211 are long, the above structure can well prevent the first frames 211 from bending and deforming, thereby improving the overall structural strength of the window door panel structure 20.

[0070] See also Figure 7 In some embodiments, the window door panel structure 20 further includes a vertical frame 23 , which is located between the two second frames 212 , and two ends of the vertical frame 23 are respectively connected to the two first frames 211 .

[0071] like Figure 7 As shown, the vertical frame 23 is substantially in a rod-shaped structure and is parallel to the second frame 212 . One or more vertical frames 23 may be provided. Optionally, the vertical frame 23 may have substantially the same structure as the second frame 212 .

[0072] The vertical frame 23 is located between the two second frames 212. For example, the vertical frame 23 can be located in the middle of the frame 21. The two ends of the vertical frame 23 are respectively connected to the two first frames 211. For example, the two ends of the vertical frame 23 can be connected to the two first frames 211 by fasteners, snap-fitting, etc.

[0073] In this embodiment, by adding a vertical frame 23, the middle parts of the two first frames 211 are fixed to each other through the vertical frame 23, thereby improving the structural compactness and structural strength of the window door panel structure 20 and preventing the first frames 211 from bending and deforming when the length is long.

[0074] It is understandable that the number of vertical frames 23 can be one or more. For example, when the first frame 211 is longer, multiple vertical frames 23 can be evenly spaced between the two second frames 212 to ensure the overall structural stability of the window door panel structure 20.

[0075] It should be noted that, when a vertical frame 23 is provided and the two ends of the vertical frame 23 are connected to the two first frames 211 by fasteners, snap-fitting, etc., it is also unnecessary to provide the above-mentioned card slots and card strips, thereby avoiding the inconvenience of providing card slots and card strips when the first frames 211 and the transparent plate 22 are long, and reducing the processing cost.

[0076] See also Figure 7 and Figure 8 In some embodiments, the transparent plates 22 have at least two pieces, two adjacent transparent plates 22 are separated by a vertical frame 23, and the two adjacent transparent plates 22 are plugged into and matched with the vertical frame 23.

[0077] like Figure 8 As shown, Figure 8 An example is given of a situation where two transparent plates 22 are provided, in which case the vertical frame 23 is provided between the two transparent plates 22, that is, the transparent plate 22 is located between the vertical frame 23 and the corresponding second frame 212, and the upper and lower ends of the transparent plate 22 are respectively plugged into the two first frames 211, and the left and right ends of the transparent plate 22 are respectively plugged into the first frame 211 and the vertical frame 23, thereby fixing the transparent plate 22.

[0078] It is understandable that, when there are more transparent plates 22, the number of vertical frames 23 can be increased accordingly to fix each transparent plate 22. For example, when there are three transparent plates 22, the three transparent plates 22 are separated and fixed by two vertical frames 23.

[0079] In this embodiment, a plurality of transparent plates 22 are arranged side by side, and two adjacent transparent plates 22 are separated by a vertical frame 23. The size of each transparent plate 22 is small, and the vertical frame 23 can strengthen the structural strength of the frame 21 while also achieving fixed positioning of the transparent plates 22, thereby ensuring assembly stability and improving the overall structural strength of the window door panel structure 20.

[0080] In some embodiments, third insertion slots 230 are respectively provided on both sides of the vertical frame 23 (see Fig. 9 ), the two transparent plates 22 located on both sides of the vertical frame 23 are respectively plugged into and matched with the two third plug-in grooves 230 to achieve fixed positioning of the transparent plates 22.

[0081] In some embodiments, both ends of the vertical frame 23 are slidably mounted on the two first frames 211 , and the vertical frame 23 can slide along the direction of the first frame 211 to change the distance between the vertical frame 23 and the second frame 212 , thereby being suitable for assembling transparent panels 22 of different lengths.

[0082] It is understandable that when the vertical frame 23 can be slidably installed on the two first frames 211, the vertical frame 23 does not need to be fixed by screws. At this time, the transparent plate 22 and the first frames 211 can be respectively provided with the above-mentioned card slots and card strips. The card slots and card strips are plugged into each other to ensure the assembly reliability between the transparent plate 22 and the two first frames 211.

[0083] like Fig. 9 As shown, in some embodiments, bosses 231 are respectively provided at both ends of the vertical frame 23, and the two bosses 231 are respectively installed in the corresponding first plug-in grooves 2111, so that the vertical frame 23 can be moved along the length direction of the first frame 211 by sliding the bosses 231 in the first plug-in grooves 2111.

[0084] In this embodiment, the first plug-in groove 2111 on the first frame 211 can not only realize the fixed limitation of the transparent plate 22, but also realize the sliding cooperation with the boss 231. In this way, there is no need to add an additional sliding groove on the first frame 211 for sliding cooperation with the boss 231, which is convenient for simplifying the structure and reducing the structural cost and assembly cost.

[0085] Please refer to Figure 5 and Figure 6 In some embodiments, the window door panel structure 20 further includes a sealing strip 24 . An installation cavity 2113 is provided on the outer side of the frame 21 . The length direction of the installation cavity 2113 is parallel to the length direction of the window door panel structure 20 . The sealing strip 24 is disposed in the installation cavity 2113 and is sealed against the adjacent door panel 10 .

[0086] In the adjacent door panels 10 and the window door panel structure 20, an installation cavity 2113 can be opened on the first frame 211, and the sealing strip 24 is inserted into the installation cavity 2113 and abuts against the adjacent door panel 10, thereby sealing the gap between the adjacent door panels 10 and the window door panel structure 20 and ensuring the sealing performance of the door body assembly 100.

[0087] In addition, two adjacent door panels 10 and two adjacent window door panel structures 20 may also be sealed by a sealing strip 24 .

[0088] It should be noted that those skilled in the art should be aware that in the above embodiment, the two first frames 211 may be different in structure, and the two second frames 212 may be different in structure, and it is only necessary to fix the transparent plate 22 by means of the two first frames 211 and the two second frames 212.

[0089] It is understandable that the installation cavity 2113 may be provided in only one of the first frames 211 , and the other first frame 211 does not need to provide the installation cavity 2113 .

[0090] The utility model embodiment also provides a lifting door 1000 (see Figure 1 ), the lifting door 1000 includes the door body assembly 100 in any of the above embodiments.

[0091] Since the lifting door 1000 includes the door body assembly 100 in any of the above embodiments, it also has the beneficial effects in any of the above embodiments. The specific beneficial effects have been described in detail above and will not be repeated here.

[0092] See also Figures 10 to 13 In some embodiments, the lifting door 1000 also includes two groups of hinge assemblies 30 and multiple back panels 40. The two groups of hinge assemblies 30 are arranged opposite to each other. Each group of hinge assemblies 30 includes multiple hinge units 31. Two adjacent hinge units 31 are hinged. The hinge unit 31 includes a hinge body 310 and a support plate 311 fixedly connected to the inner side of the hinge body 310. The door panel 10 and the window door panel structure 20 are respectively located between the two relatively arranged groups of hinge units 31; each back panel 40 and each hinge unit 31 are plug-fitted, and each back panel 40 is respectively limitedly matched with each support plate 311 to clamp the door panel 10 and the window door panel structure 20 between the corresponding back panel 40 and the support plate 311.

[0093] like Fig.10 and 11 As shown, the hinge unit 31 includes a hinge body 310 and a support plate 311 that are fixedly connected. The hinge body 310 and the support plate 311 are both roughly plate-like structures. The hinge body 310 and the support plate 311 are fixedly connected to form a roughly "L" shape. The support plate 311 is arranged on the inner side of the hinge body 310. When assembling the lifting door, a plurality of hinge units 31 are assembled into two groups of hinge assemblies 30, and then each door panel 10 and the window door panel structure 20 are fixedly assembled between the two groups of hinge assemblies 30 through each back panel 40 to complete the assembly of the lifting door.

[0094] Specifically, for the door panel 10, when the door panel 10 is assembled and fixed, the door panel 10 is first placed on the support plates 311 of the two relatively arranged hinge units 31, and then the back panels 40 are respectively plugged into the hinge bodies 310 of the hinge units 31, so that the door panel 10 is clamped and fixed between the back panels 40 and the support plates 311, and the assembly of the door panel 10 is completed. The assembly process of the door panel 10 is convenient and quick.

[0095] With regard to the window door panel structure 20, when assembling and fixing the window door panel structure 20, first place the door panel 10 on the support plates 311 of the two hinge units 31 that are relatively arranged, and then respectively plug and cooperate with the back panels 40 and the hinge bodies 310 of the hinge units 31, so that the window door panel structure 20 is clamped and fixed between the back panels 40 and the support plates 311, and the assembly of the window door panel structure 20 is completed. The assembly process of the window door panel structure 20 is convenient and quick.

[0096] When the door panel 10 or the window door panel structure 20 needs to be repaired or replaced, it is only necessary to remove the back panel 40 corresponding to the door panel 10 or the window door panel structure 20 to take out the door panel 10 or the window door panel structure 20 without removing the hinge units 31 at both ends of the door panel 10 or the window door panel structure 20, which is convenient for repairing and replacing the door panel 10 or the window door panel structure 20. Since there is no need to remove the corresponding hinge units 31, the overall structure of the hinge assembly 30 will not be destroyed when replacing the door panel 10 or the window door panel structure 20, and the structural stability of the hinge assembly 30 will not be affected. That is, other door panels will not become loose during the replacement of the door panel 10 or the window door panel structure 20, and the reliability is high.

[0097] It is understandable that in this embodiment, the back plate 40 is plugged into the hinge body 310 of the hinge unit 31, and the back plate 40 can be quickly and conveniently removed from the hinge unit 31 and the corresponding door panel 10 or window door panel structure 20 can be taken out, thereby improving the efficiency of repairing and replacing the door panel 10 or window door panel structure 20. In addition, the hinge units 31 have the same structure and are hinged in sequence from head to tail, which facilitates their assembly into hinge assemblies 30 of any length, helping to improve the versatility and applicability of the product.

[0098] like Fig.11 , Fig.12 and Fig.13 As shown, in some embodiments, a slot 3100 is opened on the hinge body 310, and the back panel 40 is inserted into the slot 3100 at one end facing the hinge body 310, and the back panel 40, the door panel 10 and the support plate 311 are fastened together to clamp the door panel 10 between the back panel 40 and the support plate 311.

[0099] The slot 3100 can be a square slot but is not limited thereto. For example, in other embodiments, the slot 3100 can also be a circular slot. The end of the back panel 40 facing the hinge body 310 is inserted into the slot 3100, and the back panel 40, the door panel 10 and the support plate 311 are fastened together by fasteners to fix the door panel 10. Optionally, the fasteners can be bolts, screws, etc.

[0100] Specifically, when assembling the door panel 10, first place the door panel 10 on the support plates 311 of the two relatively arranged hinge units 31, then insert one end of the back panel 40 into the slot 3100 on the hinge body 310, and finally use fasteners to achieve a fixed connection between the back panel 40, the door panel 10 and the support plate 311, so that the door panel 10 is firmly installed between the support plate 311 and the back panel 40. After assembly, the two side surfaces of the door panel 10 are respectively against the back panel 40 and the support plate 311 to ensure that the door panel 10 does not loosen or shake.

[0101] When the door panel 10 needs to be repaired or replaced, it is only necessary to unscrew the fasteners and remove the back panel 40 from the slot 3100 , and then the door panel 10 can be taken out for repair or replacement, which is convenient and quick.

[0102] In some embodiments, a folded edge 41 is provided at one end of the back plate 40 facing the hinge body 310 , and the folded edge 41 is in abutment with a surface of the hinge body 310 facing away from the door panel 10 .

[0103] Optionally, the back plate 40 and the folded edge 41 are integrally formed, and the back plate 40 is bent toward one end of the hinge body 310 to form the folded edge 41. The folded edge 41 may be a roughly plate-shaped structure, and the folded edge 41 and the back plate 40 are arranged at an angle, for example, the folded edge 41 and the back plate 40 are arranged at a right angle, and in addition, the end of the back plate 40 may also present a roughly arc-shaped hook structure with the folded edge 41.

[0104] The size of the slot 3100 is slightly larger than that of the folded edge 41 , so that the folded edge 41 can be easily abutted against the surface of the hinge body 310 facing away from the door panel 10 after passing through the slot 3100 , thereby reducing the difficulty of assembly.

[0105] During assembly, align the folded edge 41 on the back panel 40 with the slot 3100 on the hinge body 310. After the folded edge 41 passes through the slot 3100, it abuts against the side surface of the hinge body 310 facing away from the door panel 10, and then the back panel 40, the door panel 10 and the support plate 311 are fixed together by fasteners.

[0106] In this embodiment, the abutment between the folded edge 41 and the hinge body 310 limits the relative movement between the back panel 40 and the door panel 10, thereby ensuring the compactness of the assembly among the back panel 40, the hinge unit 31 and the door panel 10, and preventing the back panel 40 from moving relative to the hinge unit 31 and driving the door panel 10 to move during use, thereby preventing the door panel 10 from shaking or loosening, thereby ensuring the assembly reliability of the door panel 10.

[0107] It is understandable that, since the door panel 10 and the window door panel structure 20 are assembled and fixed in the same manner, the window door panel structure 20 can also be assembled and fixed in the above manner.

[0108] Optionally, the folded edge 41 is arranged on the side of the back panel 40 facing away from the door panel 10 , so that during assembly, it is convenient to tilt the back panel 40 so that the folded edge 41 passes through the slot 3100 .

[0109] In some embodiments, the back panel 40 is provided with a clamping edge 42 at opposite ends along the width direction of the door panel 10 (see Fig.13), the back plate 40 and the two clamping edges 42 are combined to form a positioning groove, and a positioning protrusion 12 is provided on the side of the door panel 10 facing the back plate, and the positioning protrusion 12 is clamped in the positioning groove. The positioning protrusion 12 and the positioning groove are limited to improve the reliability of assembly stability, and further prevent the door panel 10 from loosening or shaking. In addition, during the installation of the back plate 40, the positioning protrusion 12 facilitates the determination of the assembly position of the back plate 40, reducing the difficulty of assembling the back plate 40.

[0110] like Fig.12 and Fig.13 As shown, in some embodiments, the door body assembly 100 also includes a first fastener 101 and a second fastener 102, and the back panel 40, the door panel 10 and the support plate 311 are fastened together by the first fastener 101 and the second fastener 102, a connecting hole 21 is opened on the door panel 10, and a first mounting hole 401 and a second mounting hole 3110 corresponding to the connecting hole 21 are opened on the back panel 40 and the support plate 311 respectively, one end of the first fastener 101 passes through the first mounting hole 401 and is located in the connecting hole 21, and one end of the second fastener 102 passes through the second mounting hole 3110 and is fastened with the first fastener 101 in the connecting hole 21.

[0111] The positions of the back panel 40 and the support plate 311 correspond to each other, and the door panel 10 is located between the back panel 40 and the support plate 311. The axis lines of the connecting hole 21, the first mounting hole 401, and the second mounting hole 3110 are collinear. During assembly, one end of the second fastener 102 is first inserted into the second mounting hole 3110 and the connecting hole 21 in sequence, and then one end of the first fastener 101 that matches it is inserted into the first mounting hole 401 in sequence and the first fastener 101 and the second fastener 102 are locked in the connecting hole 21. When the first fastener 101 and the second fastener 102 are locked, the door panel 10 can be fixed between the back panel 40 and the support plate 311.

[0112] In the present embodiment, the door panel 10 is fixed by locking the first fastener 101 and the second fastener 102. This method has good assembly stability and the door panel 10 is not easy to loosen after assembly. When disassembling the door panel 10, it is only necessary to remove the first fastener 101 so that the first fastener 101 and the second fastener 102 are unlocked, and the door panel 10 can be taken out, which is convenient for the maintenance and replacement of the door panel 10.

[0113] The first fastener 101 and the second fastener 102 are mutually locking bolts or locking rivets, for example, the first fastener 101 is a sub-bolt, the second fastener 102 is a mother bolt, the sub-bolt and the mother bolt are mutually locking bolts, the head of the sub-bolt has an external thread, and the head of the mother bolt is provided with a threaded hole. During assembly, the head of the mother bolt is first passed through the second mounting hole 3110 to reach the connecting hole 21, and then the head of the sub-bolt is passed through the first mounting hole 401 and screwed into the threaded hole on the head of the mother bolt, so that the sub-bolt and the mother bolt are threadedly connected and locked.

[0114] In some embodiments, a plurality of first fasteners 101 and matching second fasteners 102 may be provided, and the installation stability of the door panel 10 is ensured by the plurality of first fasteners 101 and second fasteners 102 .

[0115] In addition, the door panel 10 may also be fixed by other fasteners. For example, a screw may be passed through the second mounting hole 3110 , the connecting hole 21 , and the first mounting hole 401 in sequence and then fastened to a nut to fix the door panel 10 .

[0116] In some embodiments, the lifting door 1000 further includes a third fastener 103, through which the back plate 40 and the door body are fastened and connected, further enhancing assembly stability. Optionally, the third fastener 103 can be a bolt, a screw, or the like.

[0117] It should be noted that each door panel 10 can be fixed by one or more back panels 40. For example, in some embodiments, one door panel 10 can be fixed by two back panels 40, that is, each door panel 10 corresponds to two back panels 40, and the two back panels 40 correspond to two support panels 311 respectively, and the back panels 40 are fastened and matched with the corresponding support panels 311 by the first fastener 101 and the second fastener 102 to achieve the fixation of the door panel 10.

[0118] For example, in some other embodiments, the door panel 10 may be fixed by four back panels 40, such as Fig.10 As shown, each door panel 10 corresponds to four smaller back panels 40, and the four back panels 40 are respectively located at the four corners of the door panel 10. The back panels 40 are fastened and matched with the corresponding support panels 311 by a plurality of first fasteners 101 and second fasteners 102 to achieve the fixation of the door panel 10. Fixing the door panel 10 by four smaller back panels 40 can not only ensure the fixation reliability of the door panel 10, but also reduce the material consumption of the back panel 40 and reduce the overall weight of the back panel 40, which helps to reduce the cost and reduce the overall weight of the lifting door 1000.

[0119] In some embodiments, each set of hinge assemblies 30 further includes a plurality of wheel assemblies 32 , and two adjacent hinge units 31 are hingedly connected via the wheel axles 320 of the wheel assemblies 32 .

[0120] See also Figures 14 to 16 In some embodiments, the hinge body 310 includes a first body 312 and a second body 313, which are riveted and fixed, and the first body 312 and the second body 313 are respectively provided with a first sub-groove 3120 and a second sub-groove 3130, and the position of the first sub-groove 3120 corresponds to the position of the second sub-groove 3130 and is connected to form a slot 3100.

[0121] The first body 312 and the second body 313 are both roughly plate-like structures. The first body 312 is located on the inner side of the second body 313. The first body 312 and the second body 313 are attached to each other and fixedly connected by riveting. For example, the first body 312 and the second body 313 can be riveted together by riveting, etc., which can ensure the reliability of the connection between the first body 312 and the second body 313, and there is no need to use additional fasteners to fix the first body 312 and the second body 313, thereby saving material costs and assembly costs.

[0122] The folded edge 41 of the back plate 40 can pass through the first sub-groove 3120 and the second sub-groove 3130 in sequence, and the folded edge 41 abuts against the side surface of the second body 313 away from the first body 312. Then, the back plate 40, the door panel 10 and the support plate 311 are fixed together by fasteners.

[0123] like Fig.14 and Fig.16 As shown, in some embodiments, a connecting hole 3121 is opened on the first body 312, and a rivet column 3131 is protruded on the second body 313. The rivet column 3131 is passed through the connecting hole 3121, and a flange 3132 is provided at one end of the rivet column 3131 away from the second body 313. The flange 3132 is abutted against a side surface of the first body 312 facing away from the second body 313.

[0124] The rivet column 3131 is adapted to the size of the connecting hole 3121, and one end of the rivet column 3131 is fixedly connected to the second body 313. The other end of the rivet column 3131 passes through the connecting hole 3121 and is riveted to the flange 3132 of the first body 312, so that the end of the rivet column 3131 is radially opened to form the flange 3132, and the flange 3132 is tightly pressed against the side surface of the first body 312 facing away from the second body 313, thereby realizing the riveting fixation of the first body 312 and the second body 313.

[0125] like Fig.16As shown, in some embodiments, a riveting hole 3133 is opened on the end surface of the riveting column 3131, and the riveting column 3131 is a hollow columnar structure, which facilitates the pressure head of the riveting machine to be inserted into the connecting hole 3121 and roll the end surface of the riveting column 3131 into a flange 3132.

[0126] In some embodiments, a first hinge plate 314 and a second hinge plate 315 are respectively provided at both ends of the first body 312, and a third hinge plate 316 and a fourth hinge plate 317 are respectively provided at both ends of the second body 313. In two adjacent hinge units 31, the second hinge plate 315 and the fourth hinge plate 317 of one hinge unit 31 are located between the first hinge plate 314 and the third hinge plate 316 of the other hinge unit 31. The first hinge plate 314, the second hinge plate 315, the third hinge plate 316 and the fourth hinge plate 317 are respectively provided with a first axis hole 3140, a second axis hole 3150, a third axis hole 3160 and a fourth axis hole 3170. The wheel axle 320 of the wheel assembly 32 is sequentially penetrated through the third axis hole 3160, the fourth axis hole 3170, the second axis hole 3150 and the first axis hole 3140 to realize the hinge connection of the two adjacent hinge units 31.

[0127] Optionally, the first body 312 , the first hinge plate 314 and the second hinge plate 315 are integrally formed, and the second body 313 , the third hinge plate 316 and the fourth hinge plate 317 are integrally formed to ensure the structural strength thereof.

[0128] The first hinge plate 314 and the third hinge plate 316 are respectively located at one end of the hinge body 310, and the second hinge plate 315 and the fourth hinge plate 317 are respectively located at the other end of the hinge body 310. The first hinge plate 314 and the third hinge plate 316 are spaced apart, and the second hinge plate 315 and the fourth hinge plate 317 are spaced apart. The first hinge plate 314, the second hinge plate 315, the third hinge plate 316 and the fourth hinge plate 317 are respectively provided with a first axis hole 3140, a second axis hole 3150, a third axis hole 3160 and a fourth axis hole 3170.

[0129] Two adjacent hinge units 31 are assembled through the wheel axle 320 of the wheel assembly 32. During assembly, one end of one hinge unit 31 is first inserted into the other end of the other hinge unit 31, and the second hinge plate 315 and the fourth hinge plate 317 of one hinge unit 31 are inserted between the first hinge plate 314 and the third hinge plate 316 of the other hinge unit 31, and the first shaft hole 3140, the second shaft hole 3150, the third shaft hole 3160 and the fourth shaft hole 3170 are aligned, and then the wheel axle 320 of the wheel assembly 32 is inserted into the third shaft hole 3160, the fourth shaft hole 3170, the second shaft hole 3150 and the first shaft hole 3140 in sequence to achieve stable articulation of the two hinge units 31.

[0130] Optionally, in two adjacent hinge units 31, the first hinge plate 314 and the third hinge plate 316 of one hinge unit 31 are respectively clearance-matched with the second hinge plate 315 and the fourth hinge plate 317 of the other hinge unit 31, thereby ensuring the flexibility of the two adjacent hinge units 31 during relative rotation and avoiding abnormal noise caused by friction during rotation.

[0131] Optionally, after one end of the axle 320 of the wheel assembly 32 is inserted into the third axial hole 3160, the fourth axial hole 3170, the second axial hole 3150 and the first axial hole 3140 in sequence, the end of the axle 320 can be riveted to the first hinge plate 314 by riveting to limit the axial movement of the hinge unit 31 along the axle 320. Specifically, after the axle 320 of the wheel assembly 32 passes through the third axial hole 3160, the fourth axial hole 3170, the second axial hole 3150 and the first axial hole 3140 in sequence and protrudes from the end surface of the third hinge plate 316, an axial force can be applied to the axial end of the axle 320 by a punch to make the axial end of the axle 320 open radially, thereby achieving riveting of the axle 320 and the first hinge plate 314, so that the hinge unit 31 cannot move axially along the axle 320, thereby ensuring the assembly stability of the two adjacent hinge units 31 on the axle 320.

[0132] like Fig.14 and Fig.15 As shown, in some embodiments, the hinge assembly 30 also includes a sleeve 34, which is disposed between the second hinge plate 315 and the fourth hinge plate 317, one end of the sleeve 34 is inserted into the second shaft hole 3150, and the other end of the sleeve 34 is inserted into the fourth shaft hole 3170, and the axle 320 of the wheel assembly 32 is passed through the sleeve 34.

[0133] The shaft sleeve 34 is a roughly cylindrical structure. When two adjacent hinge units 31 are assembled through the wheel assembly 32, the wheel axle 320 is arranged in the shaft sleeve 34. The shaft sleeve 34 can protect the wheel axle 320 and reduce the wear when the hinge unit 31 and the wheel axle 320 rotate relative to each other, thereby improving the flexibility of the two adjacent hinge units 31 when rotating.

[0134] In some embodiments, the hinge assembly 30 further includes a washer 35 (see Fig.15 ), a washer 35 is disposed in the shaft sleeve 34 , one end surface of the washer 35 abuts against the first hinge plate 314 , and the other end surface abuts against the third hinge plate 316 , and the wheel axle 320 of the wheel assembly 32 is passed through the washer 35 .

[0135] The washer 35 has a cylindrical structure and is sleeved in the shaft sleeve 34. When assembling two adjacent hinge units 31, the shaft sleeve 34 is first assembled between the second hinge plate 315 and the fourth hinge plate 317 of one hinge unit 31, and the washer 35 is inserted into the shaft sleeve 34. Then, the second hinge plate 315 and the fourth hinge plate 317 are inserted between the first hinge plate 314 and the third hinge plate 316 of the other hinge unit 31. Finally, the axle 320 of the wheel assembly 32 passes through the third axial hole 3160, the washer 35 and the first axial hole 3140 in sequence, and is riveted at the axial end of the axle 320.

[0136] When two adjacent hinge units 31 are assembled, the two ends of the washer 35 respectively abut against the first hinge plate 314 and the third hinge plate 316 of one of the hinge units 31, so that during the process of the punch riveting the axial end of the wheel axle 320, the distance between the first hinge plate 314 and the third hinge plate 316 of the hinge unit 31 can remain unchanged. Therefore, the first hinge plate 314 and the third hinge plate 316 of the hinge unit 31 will not squeeze the second hinge plate 315 and the fourth hinge plate 317 of the adjacent hinge unit 31, thereby reducing wear and abnormal noise during rotation and ensuring the flexibility of the two hinge units 31 during relative rotation.

[0137] In some embodiments, the support plate 311 has one piece, and the support plate 311 is fixedly connected to the first body 312 , or the support plate 311 is fixedly connected to the second body 313 .

[0138] In other embodiments, the support plate 311 has two pieces, one of which is fixed on the first body 312 and forms a roughly "L"-shaped structure with the first body 312, and the other is fixed on the second body 313 and forms a roughly "L-shaped structure" with the second body 313. After the first body 312 and the second body 313 are riveted and fixed, the two support plates 311 overlap.

[0139] See also Figures 17 to 20In some embodiments, the wheel assembly 32 includes a wheel axle 320 and a rubber wheel 321 sleeved on the wheel axle 320, the rubber wheel 321 includes a wheel frame 132 and a rubber sleeve 323, a limiting hole 3220 is provided on the wheel frame 322, the limiting hole 3220 passes through the two end faces 3227 of the wheel frame 322, the rubber sleeve 323 is arranged on the outer periphery of the wheel frame 322, and the rubber sleeve 323 includes a rubber ring 3230, a first rubber edge 3231, a second rubber edge 3232 and a connecting portion 3233, the rubber ring 3230 is bonded to the outer side surface of the wheel frame 322, the first rubber edge 3231 and the second rubber edge 3232 are respectively connected to the two ends of the rubber ring 3230, and the first rubber edge 3231 and the second rubber edge 3232 are respectively bonded to the two end surfaces 3227 of the wheel frame 322, the connecting part 3233 is penetrated into the limiting hole 3220, and the two ends of the connecting part 3233 are respectively connected to the first rubber edge 3231 and the second rubber edge 3232.

[0140] The rubber wheel 321 includes a wheel frame 322 and a rubber sleeve 323, and the rubber sleeve 323 is wrapped around the outer periphery of the wheel frame 322. Optionally, the rubber sleeve 323 is thermoplastically molded on the wheel frame 322 so that the rubber sleeve 323 and the wheel frame 322 are integrally molded. After integral injection molding, the rubber ring 3230 is bonded to the outer side surface of the wheel frame 322, and the first rubber edge 3231 and the second rubber edge 3232 are annular structures. The first rubber edge 3231 and the second rubber edge 3232 are respectively bonded to the end faces 3227 of the wheel frame 322, and the connecting part 3233 passes through the limiting hole 3220 and is bonded to the hole wall of the limiting hole 3220.

[0141] In this embodiment, limiting holes 3220 and connecting parts 3233 that cooperate with each other are set on the wheel frame 322 and the rubber sleeve 323, and the two ends of the connecting part 3233 are respectively connected to the first rubber edge 3231 and the second rubber edge 3232, so that the rubber sleeve 323 is locked on the wheel frame 322, thereby improving the bonding strength of the rubber sleeve 323 on the wheel frame 322, reducing the risk of debonding of the first rubber edge 3231 and the second rubber edge 3232, avoiding the loosening or rubber leakage of the rubber wheel 321, and improving the service life of the rubber wheel 321.

[0142] Optionally, a plurality of limiting holes 3220 are provided, and the plurality of limiting holes 3220 are spaced apart along the circumferential direction of the wheel frame 322. Correspondingly, a plurality of connecting parts 3233 are also provided, and the plurality of connecting parts 3233 correspond one to one with the plurality of limiting holes 3220. Through the limiting cooperation between the plurality of limiting holes 3220 and the plurality of connecting parts 3233, the rubber sleeve 323 is more firmly locked on the wheel frame 322, thereby ensuring that the rubber sleeve 323 does not loosen or leak.

[0143] Optionally, the wheel frame 322 is usually made of a high-strength metal material to improve the structural strength of the rubber wheel 321. For example, the wheel frame 322 can be made of steel, aluminum alloy, etc. The rubber sleeve 323 is usually made of a plastic material with good wear resistance to increase its service life. For example, the rubber sleeve 323 can be made of polyurethane (PU) material.

[0144] like Fig. 20 As shown, in some embodiments, along the radial direction of the rubber wheel 321, the cross section of the limiting hole 3220 includes a narrowing section, and the width of the narrowing section gradually decreases from the center of the wheel frame 322 to the edge direction X thereof.

[0145] Specifically, the cross section of the limiting hole 3220 refers to the cross section of the limiting hole 3220 along the axial direction perpendicular to the wheel frame 322. From the center of the wheel frame 322 to its edge direction X, the width of the narrowing section gradually decreases, limiting the movement of the connecting portion 3233 along the X direction, improving the radial force stability of the rubber wheel 321, and making the rubber lagging more firm and reliable.

[0146] Alternatively, if Figure 3 As shown, the limiting hole 3220 includes a first side wall 3227 and a second side wall 3228 that are arranged opposite to each other, and the narrowing section is located between the first side wall 3227 and the second side wall 3228 .

[0147] In some embodiments, the cross section of the limiting hole 3220 also includes a first connecting section.

[0148] Optionally, the first connecting section can be connected to one end of the narrowing section close to the edge of the wheel bone 322, and the width of the first connecting section can gradually increase in the direction X from the center of the wheel bone 322 to its edge, so that the cross-section of the limiting hole 3220 first changes from wide to narrow, and then from narrow to wide.

[0149] Optionally, the first connecting section can also be connected to one end of the narrowing section close to the center of the wheel bone 322, and the width of the first connecting section gradually increases from the center of the wheel bone 322 to its edge direction X, so that the cross-section of the limiting hole 3220 first changes from narrow to wide, and then from wide to narrow.

[0150] In some embodiments, the cross-section of the limiting hole 3220 also includes a second connecting section. The first connecting section and the second connecting section can be respectively connected to the two ends of the narrowing section, and the width of the first connecting section and the second connecting section gradually increases from the center of the wheel bone 322 to its edge direction X, so that the cross-section of the limiting hole 3220 first changes from narrow to wide, then from wide to narrow, and then from narrow to wide.

[0151] In addition, the shapes of the narrowing section, the first connecting section and the second connecting section can be a straight line, an arc line, or other regular or irregular shapes. In other words, the cross-section of the limiting hole 3220 can be a regular or irregular shape, for example, the cross-section of the limiting hole 3220 is a straight line or an arc line.

[0152] See also Fig.21 and Fig. 22 In some embodiments, the narrowing section includes a first hole wall 3221 and a second hole wall 3222 that are arranged opposite to each other, and the first hole wall 3221 and the second hole wall 3222 gradually incline toward the inner side of the narrowing section in the direction X from the center of the wheel bone 322 to its edge.

[0153] The cross-section of the limiting hole 3220 is roughly trapezoidal in structure. The limiting hole 3220 has a first hole wall 3221 and a second hole wall 3222 that are relatively arranged. The first hole wall 3221 and the second hole wall 3222 are both inclined surfaces. The first hole wall 3221 and the second hole wall 3222 present an inner eight structure, along the radial direction of the rubber wheel 321, and from the center of the wheel bone 322 to its edge direction X, the first hole wall 3221 and the second hole wall 3222 gradually incline toward the inner side of the narrowing section, so that the distance between the first hole wall 3221 and the second hole wall 3222 gradually decreases, thereby limiting the movement of the connecting part 3233 along the X direction, ensuring the bonding strength of the rubber sleeve 323 on the wheel bone 322, and ensuring that the rubber sleeve 323 does not debond or run.

[0154] It can be understood that in other embodiments, the narrowing section may also be in other shapes, for example, the narrowing section may also be in the shape of a circular hole or a square hole.

[0155] like Fig.21 and Fig. 22 As shown, in some embodiments, the end faces 3227 at both ends of the wheel frame 322 are respectively provided with limiting grooves 3223, optionally, the limiting grooves 3223 are annular grooves, and the rubber sleeve 323 also includes a first rib 3234 and a second rib 3235, the first rib 3234 and the second rib 3235 are respectively connected to the first rubber edge 3231 and the second rubber edge 3232, and the first rib 3234 and the second rib 3235 are respectively arranged in the corresponding limiting grooves 3223.

[0156] The first guard side 3234 and the second guard side 3235 are respectively connected to the inner edges of the first glue edge 3231 and the second glue edge 3232, and the end faces 3227 at both ends of the wheel frame 322 are respectively provided with limiting grooves 3223 that cooperate with the first guard side 3234 and the second guard side 3235. By setting the first guard side 3234 and the second guard side 3235 in the corresponding limiting grooves 3223 respectively, the risk of debonding of the first glue edge 3231 and the second glue edge 3232 is further reduced, and the reliability of the glue encapsulation is enhanced.

[0157] In some embodiments, the wheel frame 322 includes a frame 3224 and a convex ring 3225 protruding from the outer wall of the frame 3224, the rubber sleeve 323 is arranged on the outer periphery of the convex ring 3225, the inner surface of the first rubber edge 3231 and the inner surface of the second rubber edge 3232 are respectively bonded to the two end faces 3227 of the convex ring 3225, and the limiting hole 3220 is opened on the inner periphery of the convex ring 3225 and passes through the two end faces of the convex ring 3225.

[0158] The wheel frame 322 includes a frame 3224 and a convex ring 3225. The frame 3224 is a hollow cylindrical structure. The convex ring 3225 is convexly arranged on the outer side of the frame 3224. Optionally, the frame 3224 and the convex ring 3225 are integrally formed. The rubber ring 3230 is bonded to the outer side of the convex ring 3225. The first rubber edge 3231 and the second rubber edge 3232 are respectively bonded to the end faces 3227 of the convex ring 3225, so that the rubber sleeve 323 is wrapped around the outer periphery of the convex ring 3225.

[0159] In some embodiments, the inner edge of the first adhesive edge 3231 and the inner edge of the second adhesive edge 3232 are respectively bonded to the frame 3224 .

[0160] like Fig. 22 As shown, the convex ring 3225 is arranged on the outer side surface of the skeleton 3224 and is located between the end surfaces 3227 of the skeleton 3224. The inner edge of the first glue edge 3231 is the side surface of the first glue edge 3231 facing the skeleton 3224, and the inner edge of the second glue edge 3232 is the side surface of the second glue edge 3232 facing the skeleton 3224. The inner edge of the first glue edge 3231 and the inner edge of the second glue edge 3232 are respectively bonded to the outer side surface of the skeleton 3224, which can further avoid debonding at the inner edges of the first glue edge 3231 and the second glue edge 3232.

[0161] Please refer to Fig.17 In some embodiments, the wheel assembly 32 also includes a bearing 324, and the bearing 324 is arranged between the wheel axle 320 and the wheel frame 322. The arrangement of the bearing 324 is beneficial to increasing the structural strength of the wheel assembly 32 and reducing the friction between the wheel axle 320 and the wheel frame 322.

[0162] In some embodiments, the bearing 324 is integrally formed with the wheel frame 322, that is, the bearing 324, the wheel frame 322 and the rubber sleeve 323 are integrally formed to ensure their structural strength. During the manufacturing process, the wheel frame 322 can be first thermoplastically formed on the bearing 324, and then the rubber sleeve 323 can be thermoplastically formed on the wheel frame 322, so that the bearing 324, the wheel frame 322 and the rubber sleeve 323 are integrally formed.

[0163] Optionally, the lifting door 1000 further includes a column 200 (see Figure 1), a guide rail is provided inside the three-dimensional structure, and the lifting and lowering of the door body assembly 100 is achieved by sliding the rubber wheel 321 of the wheel assembly 32 in the guide rail.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door assembly, characterized in that: include: Door panels; A window door panel structure, wherein the window door panel structure is hinged to the door panel, and the window door panel structure comprises a frame and a transparent panel arranged inside the frame; The frame includes two first frames that are oppositely arranged and two second frames that are oppositely arranged. The adjacent first frames and second frames are fixedly connected. The two first frames and the two second frames are arranged to form the frame.

2. The door assembly according to claim 1, characterized in that: The transparent plate is plugged and matched with the first frame and the second frame respectively.

3. The door assembly according to claim 2, characterized in that: A first plugging groove is provided on the inner sides of the two first frames, and a second plugging groove is provided on the inner sides of the two second frames. The opposite ends of the transparent plate along its width direction are respectively plugged into the first plugging grooves; the opposite ends of the transparent plate along its length direction are respectively plugged into the second plugging grooves.

4. The door assembly according to claim 3, characterized in that: A first clamping portion is provided at the edge of the transparent plate, and a second clamping portion is provided on the inner side wall of the first plug-in slot, and the first clamping portion is clamped and matched with the second clamping portion; The first clamping portion and the second clamping portion are a clamping slot and a clamping strip for each other, and the length directions of the clamping slot and the clamping strip are parallel to the length direction of the door panel.

5. The door assembly according to claim 3, characterized in that: The window door panel structure further includes a vertical frame, wherein the vertical frame is located between the two second frame frames, and two ends of the vertical frame are respectively connected to the two first frame frames.

6. The door assembly according to claim 5, characterized in that: There are at least two transparent plates, two adjacent transparent plates are separated by the vertical frame, and the two adjacent transparent plates are plugged and matched with the vertical frame.

7. The door assembly according to claim 6, characterized in that: Two ends of the vertical frame are slidably mounted on the two first side frames respectively.

8. The door assembly according to claim 7, characterized in that: Bosses are respectively provided at both ends of the vertical frame, and the two bosses are respectively installed in the corresponding first plug-in slots.

9. The door assembly according to claim 1, characterized in that: The window door panel structure also includes a sealing strip. An installation cavity is opened on the outer side of the frame. The sealing strip is clamped in the installation cavity and abuts against the adjacent door panel.

10. A lifting door, characterized in that: The invention comprises the door assembly as described in any one of claims 1 to 9.

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