Fixing device and cabin equipment

Abstract

The present disclosure relates to the technical field of machinery, in particular to a fixing device and cabin equipment, the fixing device is installed on the outer surface of a wall and is configured to be opposite to a positioning hole on the side surface of an outer trim and fix the outer trim on the outer surface of the wall, and full welding is arranged between the abutting surface of the fixing device and the outer surface of the wall. The fixing device comprises a positioning part, and the distance between the side of the positioning part close to the wall and the outer surface of the wall decreases from top to bottom. When the fixing device is embedded in the positioning hole on the outer trim, the top wall of the positioning hole is embedded between the positioning part and the outer surface of the wall and abuts against the fixing device. The present disclosure improves the positioning and installation efficiency of the outer trim, realizes the stable connection between the outer trim and the wall, and improves the problem of damage to the corrosion-resistant paint layer on the surface of the wall when the self-tapping screw penetrates the wall and the outer trim to realize fixation in the related art by full welding between the abutting surface of the fixing device and the outer surface of the wall.

Description

Technical Field

[0001] This disclosure belongs to the field of mechanical technology, specifically relating to a fixing device and a cabin equipment. Background Technology

[0002] Currently, the conventional fixing method for prefabricated cabin exterior trim is mainly self-tapping screw fixing. This method involves drilling holes in the exterior trim through the self-tapping screw and drilling into the cabin shell structure to achieve fixing. This method requires drilling holes in the surface of the cabin shell, which directly damages the original surface anti-corrosion paint layer of the cabin and significantly reduces the overall anti-corrosion performance of the cabin. Utility Model Content

[0003] The purpose of this disclosure is to provide a fixing device and cabin equipment that can improve the alignment and installation efficiency of exterior components, achieve a stable connection between the exterior components and the wall, and reduce damage to the anti-corrosion paint layer on the wall surface.

[0004] This disclosure provides a fixing device that is mounted on the outer surface of a wall and configured to face an alignment hole on the side of an exterior trim piece, thereby fixing the exterior trim piece to the outer surface of the wall; the fixing device is fully welded to the mating surface of the outer surface of the wall. The fixing device includes a positioning part, the distance between the side of the positioning part near the wall and the outer surface of the wall decreases from top to bottom; when the fixing device is embedded in the alignment hole on the exterior trim, the top wall of the alignment hole is embedded between the positioning part and the outer surface of the wall and abuts against the fixing device.

[0005] In one exemplary embodiment of this disclosure, the horizontal width of the orthographic projection of the positioning part on the outer surface of the wall decreases from bottom to top.

[0006] In one exemplary embodiment of this disclosure, the side of the positioning part closest to the wall is a smooth curved surface.

[0007] In one exemplary embodiment of this disclosure, the positioning part includes two positioning plates, which are arranged symmetrically about the vertical direction, and the tops of the two positioning plates are connected. The distance between the two positioning plates increases from top to bottom. The distance between the side of the positioning plate close to the wall and the outer surface of the wall decreases from top to bottom.

[0008] In one exemplary embodiment of this disclosure, the side of the positioning portion near the wall is spaced apart from the outer surface of the wall; The fixing device includes a mounting part, which is located at the bottom of the positioning part, and its top surface is connected to the bottom surface of the positioning part; In the direction close to the wall, the side of the mounting part near the wall protrudes from the side of the positioning part near the wall, so as to abut against the outer surface of the wall.

[0009] In one exemplary embodiment of this disclosure, the mounting portion includes a mounting plate that extends vertically and whose top surface is connected to the bottom surface of the positioning portion; the mounting plate is provided with mounting holes that penetrate the mounting plate. The fixing device includes a connector, which is installed on the wall and passes through the mounting plate through the mounting hole. The side of the connector closest to the wall is completely in contact with the outer surface of the wall.

[0010] In one exemplary embodiment of this disclosure, the side of the mounting plate closest to the wall is completely fitted with the outer surface of the wall; when the fixing device is embedded in the alignment hole on the outer trim, the top wall of the alignment hole abuts against the top surface of the mounting plate; The connector includes a first screw and a first nut. The diameter of the first screw is adapted to the vertical height of the mounting hole. The first screw passes through the mounting hole and is disposed through the mounting plate, with its side near the wall completely in contact with the outer surface of the wall. The first nut is located on the side of the mounting plate away from the wall and is screwed to the first screw.

[0011] In one exemplary embodiment of this disclosure, the mounting plate is spaced apart from the wall. The connector includes a second threaded member and a second nut. The second threaded member includes a protrusion and a threaded portion. The protrusion is located between the mounting plate and the wall, and abuts against the side of the mounting plate near the wall and the outer surface of the wall. The threaded portion is partially embedded in the mounting hole. One end of the threaded portion is connected to the side of the protrusion near the mounting plate, and the other end is located on the side of the mounting plate away from the wall. The second nut is located on the side of the mounting plate away from the wall and is threaded to the threaded portion. The mounting part includes a mounting pad located on the side of the mounting plate close to the wall, and the side of the mounting pad facing away from the mounting plate abutting against the outer surface of the wall; the top wall of the alignment hole abuts against the top surface of the mounting pad.

[0012] In one exemplary embodiment of this disclosure, the mounting hole extends horizontally, and its horizontal length is greater than the horizontal length of the connector; and / or, The mounting part includes two support members, which are located on the side of the mounting plate away from the wall and connected to the mounting plate. The top surface of the support member is connected to the bottom surface of the positioning part. The two support members are spaced apart at opposite ends of the mounting plate in the horizontal direction.

[0013] This disclosure provides a cabin device including a wall, an exterior trim, and a fixing device as described above, wherein the exterior trim has a matching hole on its side, and the fixing device is mounted on the outer surface of the wall; the fixing device is embedded in the matching hole to fix the exterior trim to the outer surface of the wall.

[0014] The technical solutions provided in this disclosure have at least the following advantages: This embodiment of the invention improves upon the problem in related technologies where self-tapping screws penetrate the wall and the exterior trim are used for fixing by setting a fixing device that fits against the outer surface of the wall. This is achieved by using the fixing device to align with the alignment holes on the exterior trim and fixing the exterior trim to the outer surface of the wall.

[0015] In this embodiment, the distance between the side of the positioning part closest to the wall and the outer surface of the wall decreases from top to bottom. During the process of installing the exterior trim on the outer surface of the wall by the fixing device, the exterior trim can be tilted from bottom to top toward the side closest to the wall so that the top wall of the alignment hole is placed on the top surface of the positioning part, thereby achieving alignment between the alignment hole on the exterior trim and the fixing device.

[0016] After alignment, the side of the positioning part closest to the wall guides the exterior trim. The top wall of the alignment hole slides downwards along the side of the positioning part closest to the wall to abut against the fixing device, achieving initial positioning. Since the distance between the side of the positioning part closest to the wall and the outer surface of the wall decreases from top to bottom, the distance between the bottom of the positioning part and the outer surface of the wall is smaller when the top wall of the alignment hole moves to the bottom of the positioning part and abuts against the fixing device. This restricts the movement of the top wall of the alignment hole, thereby improving the stability and firmness of the exterior trim installation.

[0017] The exterior trim component in this disclosure aligns with the fixing device via a positioning hole, and the top wall of the positioning hole is embedded between the positioning part and the outer surface of the wall to achieve a snap-fit ​​connection between the exterior trim component and the fixing device. When replacement or maintenance is required, the exterior trim component can be lifted upwards to separate it from the fixing device without disassembling the fixing device. The installation and removal operation of the exterior trim component and fixing device in this disclosure is simple and helps to improve the efficiency of installation and removal.

[0018] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0021] Figure 1 A schematic diagram of the structure of the fixing device installed on the outer surface of the wall is shown in an embodiment of this disclosure.

[0022] Figure 2 A schematic diagram of the structure of the exterior trim component in an embodiment of this disclosure is shown.

[0023] Figure 3 A three-dimensional structural diagram of the fixing device in an embodiment of this disclosure is shown.

[0024] Figure 4 An exploded structural diagram of the fixing device in an embodiment of this disclosure is shown.

[0025] Figure 5 A cross-sectional structural diagram of an exterior trim piece installed on the outer surface of a wall via a fixing device is shown in an embodiment of this disclosure.

[0026] Figure 6 This illustration shows another cross-sectional structural diagram of the exterior trim being installed on the outer surface of the wall via a fixing device in an embodiment of this disclosure.

[0027] Explanation of reference numerals in the attached figures: 1. Fixing device; 11. Positioning plate; 12. Mounting plate; 121. Mounting hole; 13. Mounting pad; 141. First screw connector; 142. First nut; 15. Second screw connector; 151. Protrusion; 152. Screw connector; 153. Second nut; 16. Support member; 2. Wall; 3. Exterior trim; 31. Alignment hole; z. Vertical. Detailed Implementation

[0028] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0029] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0030] The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0031] like Figures 1 to 6 As shown, this disclosure provides a fixing device 1, which is installed on the outer surface of a wall 2 and configured to align with the alignment hole 31 on the side of an exterior trim 3, thereby fixing the exterior trim 3 to the outer surface of the wall 2. The fixing device 1 and the outer surface of the wall 2 are fully welded together. The fixing device 1 includes a positioning part, and the distance between the side of the positioning part near the wall 2 and the outer surface of the wall 2 decreases sequentially from top to bottom. For details, please refer to [reference needed]. Figure 5 and Figure 6 As shown. When the fixing device 1 is inserted into the alignment hole 31 on the outer trim 3, the top wall of the alignment hole 31 is inserted between the positioning part and the outer surface of the wall 2, and abuts against the fixing device 1.

[0032] It should be noted that the top wall of the alignment hole 31 refers to the wall surface used to enclose the alignment hole 31 and located at the top wall of the alignment hole 31.

[0033] Wall 2 can refer to the wall of prefabricated cabins, steel structure buildings, etc. Exterior trim 3 can be decorative strips, protective panels, etc., installed on the outer surface of wall 2 to enhance the aesthetics of the building and strengthen the protective capabilities of the outer surface. Exterior trim 3 is stably installed on the outer surface of wall 2 by fixing device 1, which can ensure the structural stability and long-term reliability of the connection parts and improve the functional failure or safety hazards caused by improper fixing methods.

[0034] This disclosure improves the problem in related technologies where self-tapping screws penetrate the wall 2 and the outer surface of the wall 2 are damaged when the fixing device 1 is aligned with the alignment hole 31 on the outer part 3 to fix the outer part 3 to the outer surface of the wall 2.

[0035] This disclosure allows the distance between the side of the positioning part closest to the wall 2 and the outer surface of the wall 2 to decrease sequentially from top to bottom. During the process of installing the outer trim 3 onto the outer surface of the wall 2 by the fixing device 1, the outer trim 3 can be tilted from bottom to top toward the side closest to the wall 2, so that the top wall of the alignment hole 31 is placed on the top surface of the positioning part, thereby achieving alignment between the alignment hole 31 on the outer trim 3 and the fixing device 1.

[0036] After alignment, the side of the positioning part closest to the wall 2 can guide the outer trim 3. The top wall of the alignment hole 31 can slide downwards along the side of the positioning part closest to the wall 2 to abut against the fixing device 1, achieving initial positioning. Since the distance between the side of the positioning part closest to the wall 2 and the outer surface of the wall 2 decreases from top to bottom, when the top wall of the alignment hole 31 moves to the bottom of the positioning part and abuts against the fixing device 1, the distance between the bottom of the positioning part and the outer surface of the wall 2 is small, which can limit the movement of the top wall of the alignment hole 31, thereby improving the stability and firmness of the installation of the outer trim 3.

[0037] In this disclosure, the exterior trim 3 aligns with the fixing device 1 via an alignment hole 31, and the top wall of the alignment hole 31 is embedded between the positioning part and the outer surface of the wall 2 to achieve a snap-fit ​​connection between the exterior trim 3 and the fixing device 1. When replacement or maintenance is required, the exterior trim 3 can be lifted upwards to separate it from the fixing device 1 without disassembling the fixing device 1. The installation and removal operations of the exterior trim 3 and the fixing device 1 in this disclosure are simple and conducive to improving installation and removal efficiency.

[0038] like Figure 3 and Figure 4 As shown, in some embodiments, the horizontal width of the orthographic projection of the positioning part on the outer surface of the wall 2 decreases from bottom to top. When the alignment hole 31 is aligned with the fixing device 1, the smaller horizontal width of the top of the positioning part makes it easier to quickly align the top wall of the alignment hole 31 with the top of the positioning part, thereby facilitating the alignment of the fixing device 1 as a whole with the alignment hole 31, so as to smoothly insert the fixing device 1 into the alignment hole 31 of the outer trim 3.

[0039] Specifically, the positioning part in this disclosure can be in the shape of a triangle, trapezoid, inverted V, trapezoid with an open bottom, etc., with the horizontal cross-section decreasing from bottom to top.

[0040] For example, such as Figure 3 and Figure 4As shown, the positioning part may include two positioning plates 11, with their tops connected. The distance between the two positioning plates 11 increases from top to bottom, thereby causing the horizontal width of the orthographic projection of the positioning part onto the outer surface of the wall 2 to decrease from bottom to top. The distance between the side of the positioning plate 11 closest to the wall 2 and the outer surface of the wall 2 decreases sequentially from top to bottom, so that the distance between the side of the positioning part closest to the wall 2 and the outer surface of the wall 2 decreases from top to bottom.

[0041] Furthermore, the two positioning plates 11 can be arranged symmetrically about the vertical z-axis, so that the positioning part can provide uniform support for the top wall of the alignment hole 31. When the exterior trim 3 is installed on the outer surface of the wall 2 by the fixing device 1, the force is uniform, thereby improving the stability of the installation of the exterior trim 3.

[0042] However, it is not limited to this. The positioning part in this disclosure may also include a connecting plate (not shown in the figure), which is disposed between the two positioning plates 11 and connected to the two positioning plates 11 to improve the overall structural strength of the positioning part.

[0043] For example, the two ends of the connecting plate can be connected to the bottom of the two positioning plates 11. Of course, the two ends of the connecting plate can also be connected to the top, middle, or other positions of the two positioning plates 11, depending on the actual situation.

[0044] In some embodiments, the side of the positioning part near the wall 2 can be a smooth curved surface, as can be found in the following reference. Figure 3 As shown.

[0045] For example, the side of the positioning part closest to the wall 2 can be a smooth plane (a smooth curved surface with zero curvature) that is inclined, but it is not limited to this, the side of the positioning part closest to the wall 2 can also be a smooth arc surface.

[0046] By making the side of the positioning part near the wall 2 a smooth curved surface, this disclosure can improve the smoothness of the sliding of the top wall of the alignment hole 31 along the side of the positioning part near the wall 2. The outer trim 3 can achieve self-correction and automatic pre-tightening by gravity, so as to be stably installed on the outer surface of the wall 2 by the fixing device 1.

[0047] In some embodiments, the side of the positioning part near the wall 2 may be spaced apart from the outer surface of the wall 2. The fixing device 1 may also include a mounting part located at the bottom of the positioning part, with its top surface connected to the bottom surface of the positioning part. In the direction near the wall 2, the side of the mounting part near the wall 2 protrudes beyond the side of the positioning part near the wall 2 to abut against the outer surface of the wall 2. When the exterior trim 3 is installed on the outer surface of the wall 2 by the fixing device 1, the top wall of the alignment hole 31 is embedded between the positioning part and the outer surface of the wall 2 and abuts against the top surface of the mounting part. By having the mounting part support the top wall of the alignment hole 31, the support of the exterior trim 3 can be strengthened, and the stability of the installation of the exterior trim 3 can be improved. For details, please refer to [reference needed]. Figure 5 and Figure 6 As shown.

[0048] In this disclosure, the shape of the top surface of the mounting part can be adapted to the shape of the top wall of the alignment hole 31. When the top wall of the alignment hole 31 abuts against the top surface of the mounting part, the top wall of the alignment hole 31 can completely fit against the top surface of the mounting part, thereby increasing the contact area between the top wall of the alignment hole 31 and the top surface of the mounting part, reducing contact stress, and improving the stability of the installation of the exterior trim 3.

[0049] like Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the mounting portion may include a mounting plate 12, which extends vertically in the z-direction, and the top surface of the mounting plate 12 is connected to the bottom surface of the positioning portion. The mounting plate 12 is provided with mounting holes 121, which penetrate the mounting plate 12.

[0050] The fixing device 1 may include a connector, which is installed on the wall 2 and passes through the mounting plate 12 through the mounting hole 121. The side of the connector close to the wall 2 is completely in contact with the outer surface of the wall 2.

[0051] Specifically, the side of the connector closest to the wall 2 can be fully welded to the outer surface of the wall 2, and then the outer surface of the wall 2 can be treated with anti-corrosion process. The fixing device 1 in this disclosure can improve the damage to the anti-corrosion paint layer on the outer surface of the wall 2 when fixing by penetrating the outer trim 3 and the wall 2 with self-tapping screws in related technologies, thus ensuring the anti-corrosion performance of the cabin from the source of the process.

[0052] Furthermore, compared to the related technologies that use intermittent welding of fixed brackets to fix the wall 2 on the outer surface after the anti-corrosion process has been completed, this disclosure fully welds the side of the connector close to the wall 2 to the outer surface of the wall 2 before performing anti-corrosion processing on the outer surface of the wall 2. This can reduce or avoid the problem of anti-corrosion blind spots on the outer surface of the wall 2, and improve the problem that irregular gaps are formed at the welding contact surface due to discontinuous welding points, which prevents the paint from completely filling the gaps during subsequent anti-corrosion painting, thus causing local anti-corrosion failure on the outer surface of the wall 2.

[0053] like Figure 5 As shown, in some embodiments, the side of the mounting plate 12 closest to the wall 2 can be completely fitted to the outer surface of the wall 2, and when the fixing device 1 is embedded in the alignment hole 31 on the outer trim 3, the top wall of the alignment hole 31 abuts against the top surface of the mounting plate 12.

[0054] The thickness of the top wall of the alignment hole 31 is defined as D. In this disclosure, the distance between the side of the mounting plate 12 near the wall 2 and the outer surface of the wall 2 should not be less than D, so as to facilitate the contact between the top wall of the alignment hole 31 and the top surface of the mounting plate 12.

[0055] The mounting plate 12 receives the top wall of the alignment hole 31, so that the exterior trim 3 can be installed on the outer surface of the wall 2. At the same time, it can also improve the overall structural strength of the fixing device 1 and improve the installation stability of the exterior trim 3 on the outer surface of the wall 2.

[0056] In addition, since the side of the mounting plate 12 closest to the wall 2 is completely attached to the outer surface of the wall 2, the friction between the fixing device 1 and the outer surface of the wall 2 can be increased, the problem of relative displacement between the fixing device 1 and the outer surface of the wall 2 can be improved, and the installation stability of the exterior trim 3 on the outer surface of the wall can be enhanced.

[0057] In this disclosure, the connector may include a first screw connector 141 and a first nut 142. The diameter of the first screw connector 141 is adapted to the vertical z-height of the mounting hole 121. The first screw connector 141 passes through the mounting hole 121 and is disposed through the mounting plate 12, with its side near the wall 2 completely in contact with the outer surface of the wall 2. The first nut 142 is located on the side of the mounting plate 12 facing away from the wall 2 and is screwed to the first screw connector 141. When the first nut 142 is tightened, the first nut 142 abuts tightly against the mounting plate 12, so that the mounting plate 12 can be stably installed on the outer surface of the wall 2.

[0058] For example, the first screw connector 141 in this disclosure may be an energy storage stud. The side of the first screw connector 141 closest to the wall 2 is fully welded to the outer surface of the wall 2 to reduce or avoid the occurrence of anti-corrosion blind spots on the outer surface of the wall 2, which could lead to local anti-corrosion failure on the outer surface of the wall 2.

[0059] like Figure 6 As shown, in some embodiments, the mounting plate 12 can be spaced apart from the wall 2. The connector may include a second screw connector 15 and a second nut 153. The second screw connector 15 includes a protrusion 151 and a screw portion 152. The protrusion 151 is located between the mounting plate 12 and the wall 2, and abuts against the side of the mounting plate 12 near the wall 2 and the outer surface of the wall 2. The screw portion 152 is partially embedded in the mounting hole 121. One end of the screw portion 152 is connected to the side of the protrusion 151 near the mounting plate 12, and the other end is located on the side of the mounting plate 12 away from the wall 2. The second nut 153 is located on the side of the mounting plate 12 away from the wall 2 and is screwed to the screw portion 152. The diameter of the screw portion 152 can be adapted to the vertical z-height of the mounting hole 121. When the second nut 153 is tightened, the second nut 153 abuts tightly against the mounting plate 12, so that the mounting plate 12 can be stably installed on the outer surface of the wall 2.

[0060] For example, the second screw 15 in this disclosure may be a flathead carriage screw. The side of the protrusion 151 near the wall 2 is fully welded to the outer surface of the wall 2 to reduce or avoid the occurrence of anti-corrosion blind spots on the outer surface of the wall 2, which could lead to local anti-corrosion failure on the outer surface of the wall 2.

[0061] The full welding between the protrusion 151 and the outer surface of the wall 2 can be performed in advance during the welding stage of the wall 2. After the full welding is completed, the outer surface of the wall 2 is treated with anti-corrosion process. After the mounting holes 121 on the mounting plate 12 are positioned and installed with the connector, the mounting plate 12 is fixed to the outer surface of the wall 2 by the second nut 153. After the fixing device 1 is fixed to the outer surface of the wall 2 by the connector, the alignment hole 31 on the outer trim 3 is tilted downwards and aligned with the fixing device 1 so that the fixing device 1 is embedded in the alignment hole 31 on the outer trim 3. The top wall of the alignment hole 31 is embedded between the positioning part and the outer surface of the wall 2 and abuts against the fixing device 1, so that the fixing device 1 can support and limit the outer trim 3.

[0062] In this disclosure, the mounting part may further include a mounting pad 13, which is located on the side of the mounting plate 12 near the wall 2, and the side of the mounting plate 12 facing away from the wall 2 abuts against the outer surface of the wall 2. When the top wall of the alignment hole 31 is fitted between the positioning part and the outer surface of the wall 2, the top wall of the alignment hole 31 abuts against the top surface of the mounting pad 13.

[0063] The mounting pad 13 may be placed only on the top of the mounting plate 12.

[0064] Specifically, the mounting pad 13 can be located on top of the second screw 15 to receive the top wall of the alignment hole 31.

[0065] The material of the mounting pad 13 can be the same as that of the mounting plate 12. During manufacturing, the mounting pad 13 can be integrally molded with the mounting plate 12.

[0066] However, this is not the only possibility; the mounting pad 13 may also be made of a different material than the mounting plate 12. For example, the mounting pad 13 may be made of a material with a certain degree of flexibility to absorb the impact force when the top wall of the alignment hole 31 comes into contact with the mounting pad 13, thereby reducing the risk of damage to the mounting pad 13 and the exterior trim 3.

[0067] The shape of the top surface of the mounting pad 13 can be adapted to the shape of the top wall of the alignment hole 31. When the top wall of the alignment hole 31 abuts against the top surface of the mounting pad 13, the top wall of the alignment hole 31 is completely fitted to the top surface of the mounting pad 13, which can increase the contact area between the top wall of the alignment hole 31 and the mounting pad 13, reduce contact stress, and improve the installation stability of the exterior trim 3.

[0068] like Figure 3 and Figure 4 As shown, in some embodiments, the mounting hole 121 extends horizontally, and its horizontal length may be greater than the horizontal length of the connector.

[0069] This disclosure allows adjustment of the horizontal position of the connector on the mounting hole 121, thereby adjusting the position of the mounting part and the positioning part on the outer surface of the wall 2, and adjusting the position of the outer trim 3 on the outer surface of the wall 2 until the outer trim 3 is accurately positioned on the outer surface of the wall 2. By making the horizontal length of the mounting hole 121 greater than the horizontal length of the connector, this disclosure reduces the accuracy requirements for the installation position of the connector when the fixing device 1 is installed on the outer surface of the wall 2.

[0070] like Figure 3 and Figure 4 As shown, in some embodiments, the mounting part may further include two support members 16. The support members 16 are located on the side of the mounting plate 12 away from the wall 2 and are connected to the mounting plate 12. The top surface of the support member 16 is connected to the bottom surface of the positioning part. The two support members 16 are spaced apart at opposite ends of the mounting plate 12 in the horizontal direction.

[0071] For example, when the positioning part includes two positioning plates 11, the support member 16 can correspond one-to-one with the positioning plates 11, and the top surface of the support member 16 is connected to the bottom surface of the corresponding positioning plate 11. By providing the support member 16, the connection surface between the positioning part and the mounting part can be increased, the connection stability between the positioning part and the mounting part and the overall structural strength of the fixing device 1 can be improved, thereby improving the installation stability of the exterior trim 3 on the outer surface of the wall 2.

[0072] like Figure 1 and Figure 2As shown, in some embodiments, at least two alignment holes 31 arranged at vertical z-intervals can be provided on the same side of the exterior trim 3. Fixing devices 1 corresponding one-to-one with the alignment holes 31 on the exterior trim 3 can be provided on the outer surface of the wall 2 to improve the installation stability of the exterior trim 3 on the wall 2. During the alignment and connection process with the fixing device 1, the exterior trim 3 will be subjected to gravity and automatically tighten towards the bottom of the positioning part. The top wall of the alignment hole 31 is embedded between the positioning part and the outer surface of the wall 2 and abuts against the fixing device 1, thereby restricting the movement of the top wall of the alignment hole 31 in the vertical z-direction and horizontal direction, and improving the installation stability of the exterior trim 3 on the outer surface of the wall 2.

[0073] This disclosure also provides a compartment device that may include a wall, an exterior trim, and any of the fixing devices described above. The exterior trim has alignment holes on its side, and the fixing devices are mounted on the outer surface of the wall. The fixing devices are fitted into the alignment holes to secure the exterior trim to the outer surface of the wall.

[0074] In the description of this specification, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise expressly specified.

[0075] Furthermore, it should be noted that terms such as "upper," "lower," "left," and "right" are used only for distinction and convenience of description, and do not impose any positional limitations on the embodiments of the present invention. For example, "upper" in practice can refer to "lower," "left," or "right." In this disclosure, unless otherwise explicitly specified and limited, terms such as "assembly" and "connection" 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. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.

[0076] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Therefore, any changes or modifications made in accordance with the claims and description of the present disclosure should fall within the scope of the patent coverage of the present disclosure.

Claims

1. A fixing device, characterized in that, The fixing device is installed on the outer surface of the wall and is configured to face the alignment hole on the side of the exterior trim, and fixes the exterior trim to the outer surface of the wall; the fixing device and the contact surface of the outer surface of the wall are fully welded together. The fixing device includes a positioning part, the distance between the side of the positioning part near the wall and the outer surface of the wall decreases from top to bottom; when the fixing device is embedded in the alignment hole on the exterior trim, the top wall of the alignment hole is embedded between the positioning part and the outer surface of the wall and abuts against the fixing device.

2. The fixing device according to claim 1, characterized in that, The horizontal width of the orthographic projection of the positioning part on the outer surface of the wall decreases from bottom to top.

3. The fixing device according to claim 1, characterized in that, The side of the positioning part closest to the wall is a smooth curved surface.

4. The fixing device according to claim 1, characterized in that, The positioning part includes two positioning plates, which are arranged symmetrically about the vertical. The tops of the two positioning plates are connected, and the distance between the two positioning plates increases from top to bottom. The distance between the side of the positioning plate closest to the wall and the outer surface of the wall decreases from top to bottom.

5. The fixing device according to claim 1, characterized in that, The positioning part is spaced apart from the outer surface of the wall on the side closest to the wall. The fixing device includes a mounting part, which is located at the bottom of the positioning part, and its top surface is connected to the bottom surface of the positioning part; In the direction close to the wall, the side of the mounting part near the wall protrudes from the side of the positioning part near the wall, so as to abut against the outer surface of the wall.

6. The fixing device according to claim 5, characterized in that, The mounting part includes a mounting plate that extends vertically and whose top surface is connected to the bottom surface of the positioning part; the mounting plate is provided with mounting holes that penetrate the mounting plate. The fixing device includes a connector, which is installed on the wall and passes through the mounting plate through the mounting hole. The side of the connector closest to the wall is completely in contact with the outer surface of the wall.

7. The fixing device according to claim 6, characterized in that, The side of the mounting plate closest to the wall is completely fitted to the outer surface of the wall; when the fixing device is embedded in the alignment hole on the outer trim, the top wall of the alignment hole abuts against the top surface of the mounting plate. The connector includes a first screw and a first nut. The diameter of the first screw is adapted to the vertical height of the mounting hole. The first screw passes through the mounting hole and is disposed through the mounting plate, with its side near the wall completely in contact with the outer surface of the wall. The first nut is located on the side of the mounting plate away from the wall and is screwed to the first screw.

8. The fixing device according to claim 6, characterized in that, The mounting plate is spaced apart from the wall; The connector includes a second threaded member and a second nut. The second threaded member includes a protrusion and a threaded portion. The protrusion is located between the mounting plate and the wall, and abuts against the side of the mounting plate near the wall and the outer surface of the wall. The threaded portion is partially embedded in the mounting hole. One end of the threaded portion is connected to the side of the protrusion near the mounting plate, and the other end is located on the side of the mounting plate away from the wall. The second nut is located on the side of the mounting plate away from the wall and is threaded to the threaded portion. The mounting part includes a mounting pad located on the side of the mounting plate close to the wall, and the side of the mounting pad facing away from the mounting plate abutting against the outer surface of the wall; the top wall of the alignment hole abuts against the top surface of the mounting pad.

9. The fixing device according to claim 6, characterized in that, The mounting hole extends horizontally, and its horizontal length is greater than the horizontal length of the connector; and / or, The mounting part includes two support members, which are located on the side of the mounting plate away from the wall and connected to the mounting plate. The top surface of the support member is connected to the bottom surface of the positioning part. The two support members are spaced apart at opposite ends of the mounting plate in the horizontal direction.

10. A cabin equipment, characterized in that, The device includes a wall, an exterior trim, and a fixing device as described in any one of claims 1-9, wherein the exterior trim has a matching hole on its side, and the fixing device is installed on the outer surface of the wall; the fixing device is embedded in the matching hole to fix the exterior trim to the outer surface of the wall.

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