Keel leveling structure and wall panel system
Patent Information
- Application Number
- CN202521578196.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-07-25
AI Technical Summary
[0004]发明人发现,一些找平龙骨凹槽太深,须将结构胶挤满龙骨凹槽才能与墙板粘合,胶量消耗大,既不经济也不环保;若仅在龙骨上下边缘施胶,粘接面积不足,又可能造成粘接力不足
[0015] The above-described one or more embodiments have the following beneficial effects: By having the second end of the second connector pass through the through hole of the keel body and connect to the inner side of the receiving part, this improved connection relationship helps to transmit force more rationally between the components. When the keel is subjected to external force, the force can be transmitted more directly and evenly from the keel body to the first connector through the second connector, and then to the supporting structure such as the wall. Since the second end is in contact with the first and second wingspans, the space of the recessed position is reduced to a certain extent, thereby reducing the amount of glue consumed and improving economy and environmental protection.
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Figure CN224769732U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building decoration technology, and more specifically, to a keel leveling structure and wall panel system. Background Technology
[0002] Wall panels, with their stylish appearance and ease of maintenance, have become a mainstream material for building decoration and are widely used in home spaces.
[0003] Currently, most wall panels use a modular design and require on-site assembly. To improve the aesthetics, stability, and durability of the installation, a leveling joist is typically used for leveling before installing the wall panels. The usual installation steps are: first, lay out the lines (determine the horizontal and vertical lines), then drill holes, insert expansion bolts, then insert and adjust the leveling bolts, and finally secure the leveling joist with hexagonal nuts.
[0004] The inventors discovered that some leveling keel grooves are too deep, requiring structural adhesive to be squeezed into the keel grooves to bond with the wall panels, resulting in high adhesive consumption, which is neither economical nor environmentally friendly; if adhesive is only applied to the upper and lower edges of the keel, the bonding area is insufficient, which may also result in insufficient adhesion. Utility Model Content
[0005] In view of the above problems, this application provides a keel leveling structure and wall panel system.
[0006] According to a first aspect of this application, a keel leveling structure is provided, comprising: a keel body including a base, a first wing portion and a second wing portion extending to opposite sides of the base, the base having a through hole; a first connector including a connecting portion configured to be at least partially placed in a wall and a receiving portion connected to the connecting portion; and a second connector configured to pass through the through hole so that its first end connects to the inner side of the receiving portion, and its second end is located in a recessed position formed by the base, the first wing portion and the second wing portion, wherein the first side of the second end has a wingspan angle that is approximately the same as and contacts the wingspan of the first wing portion, and the second side of the second end has a wingspan angle that is approximately the same as and contacts the wingspan of the second wing portion.
[0007] In some embodiments, the cross-section of the recessed position is a first trapezoid with a larger base and a smaller top, and the cross-section of the second end is a second trapezoid with a smaller base and a larger top. The dimensions of the first trapezoid and the second trapezoid are matched so that the second end is located in the recessed position.
[0008] In some embodiments, the tops of the first wing segment and the second wing segment are substantially flush, and the top of the second end is higher than or equal to the tops of the first wing segment and the second wing segment.
[0009] In some embodiments, the shape of the second end substantially matches the recessed location, and it is configured to form an interference fit with the recessed location.
[0010] In some embodiments, the first connector includes an adjustable bolt, comprising a connecting portion and a receiving portion; wherein the connecting portion is provided with an external thread, and the inner side of the receiving portion is provided with an internal thread.
[0011] In some embodiments, the second connector includes a fastening screw, including a first end and a second end, the first end including external threads and configured to engage with the internal threads of the receiving portion.
[0012] In some embodiments, the base includes a planar portion extending along the length direction, wherein the first wingspan portion and the second wingspan portion are respectively connected to opposite sides of the planar portion, extending obliquely upward from the planar portion, and each forming an obtuse angle with the planar portion.
[0013] In some embodiments, the keel body includes: a body portion; a first bend portion and a second bend portion connected to the body portion and located on opposite sides of the body portion; wherein the body portion has a truncated cone hole, the bottom of the truncated cone hole is a base portion, the bottom hole of the truncated cone hole is a through hole, a first wing portion is formed by extending from the first generatrix of the truncated cone hole to the first bend portion, and a second wing portion is formed by extending from the second generatrix of the truncated cone hole to the second bend portion.
[0014] In some embodiments, the second end includes a cone that substantially matches the taper of the frustum hole, the taper of which is adapted to the taper of the frustum hole, and the cone is configured to form a conical surface fit with the frustum hole. Another aspect of this application provides a wall panel system, characterized in that it includes: unit wall panels arranged in a spliced manner; at least one keel leveling structure as described in any of the above embodiments, configured to connect to the unit wall panels.
[0015] The above-described one or more embodiments have the following beneficial effects: By having the second end of the second connector pass through the through hole of the keel body and connect to the inner side of the receiving part, this improved connection relationship helps to transmit force more rationally between the components. When the keel is subjected to external force, the force can be transmitted more directly and evenly from the keel body to the first connector through the second connector, and then to the supporting structure such as the wall. Since the second end is in contact with the first and second wingspans, the space of the recessed position is reduced to a certain extent, thereby reducing the amount of glue consumed and improving economy and environmental protection. Attached Figure Description
[0016] The above-mentioned contents, other objects, features and advantages of this application will become clearer from the following description of embodiments with reference to the accompanying drawings, in which:
[0017] Figure 1 This schematically illustrates a keel leveling structure in the prior art;
[0018] Figure 2 This schematically illustrates a first state diagram of the keel leveling structure according to an embodiment of the present application;
[0019] Figure 3 This schematically illustrates a second state diagram of the keel leveling structure according to an embodiment of this application;
[0020] Figure 4 A schematic cross-sectional view of the keel body according to an embodiment of this application is shown;
[0021] Figure 5 A schematic top view of the keel body according to an embodiment of this application is shown;
[0022] Figure 6 A schematic cross-sectional view of a first connector according to an embodiment of this application is shown; and
[0023] Figure 7 A cross-sectional view of a second connector according to an embodiment of this application is shown schematically;
[0024] The reference numerals used in the above figures are as follows:
[0025] 100. Keel leveling structure; 101. Flange nut; 102. Leveling keel; 103. Adjustable bolt; 1031. Support plane; 104. Washer; 200. Keel leveling structure; 210. Keel body; 211. Base; 212. First wingspan; 213. Second wingspan; 214. Through hole; 215. Pre-drilled hole; 220. First connector; 221. Connecting part; 222. Receiving part; 230. Second connector; 231. First end; 232. Second end; 2321. First side; 2322. Second side; 240. Expansion bolt.
[0026] It should be noted that, for clarity, the dimensions of the overall / partial structure or the overall / partial region in the drawings used to describe the embodiments of this application may be enlarged or reduced, that is, these drawings are not drawn to actual scale. Detailed Implementation
[0027] The embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of this application. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of this application for ease of explanation. However, it will be apparent that one or more embodiments may be implemented without these specific details. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this application.
[0028] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The terms “comprising,” “including,” etc., as used herein indicate the presence of features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.
[0029] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.
[0030] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).
[0031] Figure 1 The diagram schematically illustrates a keel leveling structure 100 in the prior art.
[0032] like Figure 1 The keel leveling structure 100 shown has a leveling keel 102 fixedly connected to the wall via adjustable bolts 103 and flange nuts 101. This wall can be a structural wall, but is not limited to it. The adjustable bolts 103 and flange nuts 101 secure the leveling keel 102, preventing it from falling off. The adjustable bolts 103 and flange nuts 101 are connected by a supporting plane 1031 and a washer 104. The grooves for installing the flange nuts 101 and washer 104 must have sufficient space to accommodate both. If the groove shape is not compatible with the flange nuts 101 and washer 104, and the groove is too deep, there will be excessive gaps. In cases where structural adhesive must be completely filled into the groove for bonding with the wall panel, the adhesive consumption is high, which is neither economical nor environmentally friendly. If adhesive is only applied to the upper and lower edges of the keel, the contact area is limited due to the shape of the keel groove, resulting in insufficient adhesion. If the holes are not drilled perpendicularly, the expansion bolt 240 may tilt, affecting the tilt of the adjusting bolt. Furthermore, due to the planar structure of the bottom surface of the flange nut 101 and the supporting plane 1031, the keel will also tilt, resulting in poor leveling. The effectiveness of drilling depends to some extent on the skill of the installer, and the results can vary.
[0033] To address the aforementioned issues, embodiments of this application provide a keel leveling structure and wall panel system that can reduce adhesive consumption and, to some extent, relax the requirements for drilling. Further details are provided below.
[0034] Figure 2The diagram schematically illustrates a first state of the keel leveling structure 200 according to an embodiment of this application. Figure 3 The diagram schematically illustrates a second state of the keel leveling structure 200 according to an embodiment of this application. Figure 4 A cross-sectional view of the keel body 210 according to an embodiment of this application is shown schematically. Figure 5 A schematic top view of the keel body 210 according to an embodiment of this application is shown. Figure 6 A cross-sectional view of the first connector 220 according to an embodiment of this application is shown schematically. Figure 7 A cross-sectional view of the second connector 230 according to an embodiment of this application is shown schematically.
[0035] like Figures 2-7 As shown, the keel leveling structure 200 includes a keel body 210, a first connector 220, and a second connector 230. The keel body 210 includes a base 211, a first wing portion 212 extending to opposite sides of the base 211, and a second wing portion 213. The base 211 has a through hole 214. Figure 1 (not shown in the image). The first connector 220 includes a connector 221 configured to be at least partially placed in the wall and a receiving portion 222 connected to the connector 221. The second connector 230 is configured to have a through hole 214 through which its first end 231 is connected to the inside of the receiving portion 222, and its second end 232 is located in the recessed position formed by the base 211, the first wingspan portion 212 and the second wingspan portion 213, wherein the first side 2321 of the second end 232 has a wingspan angle that is approximately the same as that of the first wingspan portion 212 and is in contact with each other, and the second side 2322 of the second end 232 has a wingspan angle that is approximately the same as that of the second wingspan portion 213 and is in contact with each other.
[0036] For example, the keel body 210 can be a leveling keel, which can be formed by extruding a flat galvanized steel sheet through a plastic mold. However, in practical applications, the material of the leveling keel is not limited to galvanized steel. The base 211 is the basic part of the keel body 210. For example, in a leveling keel, the flat plate part that serves as the main support for the overall frame can be the base 211. The first wing 212 can be a part extending from one side of the base 211. The second wing 213 can be a part extending from the other side of the base 211. The keel body 210 is provided with the first wing 212 and the second wing 213, which can increase the moment of inertia of the keel section and improve stability.
[0037] like Figure 5The through hole 214 may include an oblong mounting hole to absorb errors in the first connector 220, thereby achieving a smooth connection between the leveling keel and the wall. An oblong mounting hole, also known as a waist-shaped hole, is a specially machined elongated oval hole used as a baffle, positioning plate, or template to adjust the left-right and front-back distances. Because the distance to be adjusted is uncertain, the positioning dimensions can be adjusted by machining an oblong mounting hole. For example, if the through hole 214 is located at the center line of the base 211, the installation effect will be more secure after the first connector 220 is used to install the leveling keel and the wall. It is understood that the through hole 214 may also include circular holes, rectangular holes, etc.
[0038] The first connector 220 is used to connect the keel body 210 to structures such as walls. At least a portion of it can be located within the wall and is called the connecting portion 221, such as when the connecting portion 221 is connected to an expansion bolt. The receiving portion 222 is connected to the connecting portion 221 and is used to receive other components for connection. The second connector 230 is a component that mates with the first connector 220. For example, during installation, the connecting portion 221 of the first connector 220 is first fixed to the wall. Then, the second connector 230 passes through the through hole 214 of the keel base 211, so that its first end 231 is connected to the receiving portion 222 of the first connector 220, and its second end 232 is located in a recessed position and contacts the first wing portion 212 and the second wing portion 213.
[0039] It is understood that the first side 2321 or the second side 2322 includes one of the sides of the second end 232 of the second connector 230. For example, if the second connector 230 is considered as a component with a certain shape, then one of its edges can be defined as the first side 2321. The wingspan angle refers to the angle in space of the corresponding wing section (first wing section 212 or second wing section 213) relative to the base 211. Assuming the base 211 is horizontal and the wing section extends upward perpendicularly to the base 211, then the wingspan angle is 90°. In practical applications, the wingspan angle can vary depending on the design purpose of the keel. The term "approximately" in this application means that a certain degree of error is allowed. For example, when the wingspan angle of the first wing section 212 is 60°, and the wingspan angle of the first side 2321 is "approximately the same" as that of the first wing section 212 (e.g., a deviation range of ±2°, for example only), then the angle of the first side 2321 is between 55° and 65°. This facilitates good contact and fit between the second connector 230 and the first wing section 212, thereby enhancing the stability of the entire keel leveling structure 200.
[0040] According to an embodiment of this application, the second end 232 of the second connector 230 passes through the through hole 214 of the keel body 210 and connects to the inner side of the receiving portion 222. This improved connection helps to transmit force more rationally between the components. When the keel is subjected to external force, the force can be transmitted more directly and evenly from the keel body 210 to the first connector 220 through the second connector 230, and then to the supporting structure such as the wall. Since the second end 232 is in contact with the first wing portion 212 and the second wing portion 213, the space of the recessed position is reduced to a certain extent, thereby reducing the amount of glue consumed and improving economy and environmental protection.
[0041] In some embodiments, at least one of the portions of the second end 232 that contact the first wing section 212 and the second wing section 213 can be made of a flexible material. If the perforation is not perpendicular, it can also adjust one or more components of the keel leveling structure 200.
[0042] In some embodiments, the cross-section of the recessed position is a first trapezoid with a larger base and a smaller top, and the cross-section of the second end 232 is a second trapezoid with a smaller base and a larger top. The dimensions of the first trapezoid and the second trapezoid are matched so that the second end 232 is located in the recessed position.
[0043] For example, "size matching" means that the side lengths, angles, and other dimensions of the first and second trapezoids are adapted to each other so that the second end 232 can be located in the recessed position. For example, the base length and hypotenuse angle of the first trapezoid correspond to the top side length and hypotenuse angle of the second trapezoid, so that the second end 232 can be tightly embedded in the recess.
[0044] According to the embodiments of this application, the trapezoidal shape and size of the recess and the second end 232 are matched, making the connection between the second connector 230 and the keel body 210 tighter and occupying more space in the recessed position, thereby reducing the space that needs to be filled with structural adhesive and reducing the amount of adhesive required. Furthermore, it is less prone to loosening or displacement, thus enhancing the stability of the entire keel leveling structure 200 and enabling it to better withstand loads such as those from suspended ceilings.
[0045] In some embodiments, the tops of the first wing portion 212 and the second wing portion 213 are substantially flush, and the top of the second end 232 is higher than or equal to the tops of the first wing portion 212 and the second wing portion 213. This effectively reduces or even eliminates the space that needs to be filled with structural adhesive, thereby effectively reducing the amount of adhesive required. This not only saves on structural adhesive costs but also reduces problems such as long drying times and increased weight caused by the use of large amounts of structural adhesive, resulting in a simpler appearance and potentially fewer defects such as adhesive overflow caused by excessive structural adhesive.
[0046] For example, the top of the second end 232 is higher than the top of the first wing 212 and the second wing 213. The difference in height can be equal to the distance of part of the gap between the wall panel and the leveling keel, thereby avoiding unevenness of the wall surface caused by the presence of gaps and the resulting depression in the middle of the wall panel.
[0047] In some embodiments, the shape of the second end 232 substantially matches the recessed location, and it is configured to form an interference fit with the recessed location. When the second end 232 matches the shape of the recessed location and forms an interference fit, the second end 232 can be tightly embedded in the recessed location, filling the recessed space to the maximum extent. The gap between the two becomes very small, which greatly reduces the space that needs to be filled with structural adhesive.
[0048] In some embodiments, the base 211 includes a planar portion extending along the length direction, wherein the first wingspan portion 212 and the second wingspan portion 213 are respectively connected to opposite sides of the planar portion, respectively extending obliquely upward from the planar portion, and each forming an obtuse angle with the planar portion.
[0049] like Figure 4 and Figure 5 The cross-section shows a planar portion and a first wing segment 212 and a second wing segment 213 extending obliquely upward from the edge of the planar portion. The first wing segment 212 and the second wing segment 213 each include a wing segment, a planar segment, and a bent segment. The wing segment extends obliquely upward from the edge of the planar portion, forming an obtuse angle with the planar portion. It then transitions to the planar segment, extending in a direction away from the planar portion, and then transitions to the bent segment. The bent segment may be perpendicular to the planar direction of the planar portion. The planar segment is parallel to the planar portion.
[0050] According to the embodiments of this application, the first wing portion 212 and the second wing portion 213 are respectively connected to the opposite sides of the planar portion and extend obliquely upward from the planar portion, forming an obtuse angle with the planar portion, which makes the cross-sectional moment of inertia of the leveling keel large and the structural strength high, thereby making the wall panel installation more stable.
[0051] In some embodiments, refer to Figure 6 The first connector 220 includes an adjustable bolt 103. The adjustable bolt 103 includes a connecting portion 221 and a receiving portion 222; wherein the connecting portion 221 is provided with external threads, and the inner side of the receiving portion 222 is provided with internal threads. For example, the receiving portion 222 is hollow inside, and its top is an external hexagon, abutting against the side of the base 211 near the wall.
[0052] In some embodiments, refer to Figure 7The second connector 230 includes a fastening screw, which has a first end 231 and a second end 232. The first end 231 has external threads and is configured to engage with the internal threads of the receiving portion 222. The engagement of the fastening screw with the receiving portion 222 of the adjustable bolt 103 further strengthens the connection stability compared to… Figure 1 The connection method shown achieves a more compact and reasonable connection structure.
[0053] Return to reference Figure 5 The width of the through hole 214 can be smaller than the width of the fastening screw nut and smaller than the circumscribed circle diameter of the top external hexagon of the receiving part 222. Furthermore, during wall panel installation, screws can be fixed through the pre-drilled hole 215, facilitating screw insertion.
[0054] Furthermore, the length of the through hole 214 can be set to be greater than the circumscribed circle diameter of the top outer hexagon of the receiving part 222, so as to better absorb the error of the adjustable bolt 103.
[0055] In some embodiments, the keel body 210 includes a body portion; a first bend portion and a second bend portion connected to the body portion and located on opposite sides of the body portion;
[0056] The main body has a truncated cone hole, the bottom of which is the base 211, and the bottom hole of which is a through hole 214. The first wing span 212 is formed by extending from the first generatrix of the truncated cone hole to the first bend, and the second wing span 213 is formed by extending from the second generatrix of the truncated cone hole to the second bend.
[0057] In some embodiments, the second end 232 includes a cone that substantially matches the truncated cone bore, the taper of which is adapted to the taper of the truncated cone bore, the cone being configured to form a conical surface fit with the truncated cone bore.
[0058] Reference Figure 4 and Figure 7 The flat galvanized steel sheet can be bent on both sides, with the middle part being the main body and the two sides being the first and second bending parts. Then, a frustum-shaped hole is formed in the main body, creating a shape like... Figure 4 The cross-section (bottom through hole not shown).
[0059] According to embodiments of this application, the conical surface fit is tighter, occupying more space in the recessed area, thereby reducing the space required to fill with structural adhesive and lowering the amount of adhesive needed. Furthermore, it is less prone to loosening or displacement, thus enhancing the stability of the entire keel leveling structure 200 and enabling it to better withstand loads such as those from suspended ceilings.
[0060] In some embodiments, a wall panel system is also provided based on the above-described keel leveling structure 200, including: spliced unit wall panels; and at least one of the above-described keel leveling structures 200 configured to be connected to the unit wall panels.
[0061] The following further explains the process of forming a wall panel system by combining the above-mentioned keel leveling structure 200.
[0062] First, the adjustable bolt 103 is fixed to the structural wall and roughly leveled. Then, the leveling joists are fixed to the adjustable bolt 103. Next, the fastening screws are passed through the through holes 214 of the leveling joists and threaded into the inner side of the receiving portion 222 of the adjustable bolt 103. The nuts contact the recessed positions formed by the base 211, the first wing portion 212, and the second wing portion 213, filling the recessed positions and extending above the tops of the first and second wing portions 212 and 213 to prevent the middle of the wall panel from collapsing. Then, structural adhesive is applied. Finally, the back of the wall panel is connected to the leveling joists via the structural adhesive. This completes the wall panel system.
[0063] Those skilled in the art will understand that the features described in the various embodiments of this application can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in this application. In particular, the features described in the various embodiments of this application can be combined and / or combined in various ways without departing from the spirit and teachings of this application. All such combinations and / or combinations fall within the scope of this application.
[0064] The embodiments of this application have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of this application. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of this application is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of this application, and all such substitutions and modifications should fall within the scope of this application.
Claims
1. A keel leveling structure, characterized in that, include: The keel body includes a base, a first wing and a second wing extending to opposite sides of the base, and the base has through holes; The first connector includes a connecting portion configured to be at least partially placed within the wall and a receiving portion connected to the connecting portion; The second connector is configured to have a through hole through which its first end connects to the inside of the receiving portion, and its second end is located in the recessed position formed by the base, the first wing span, and the second wing span. The first side of the second end has a wingspan angle that is approximately the same as that of the first wing span and is in contact with each other, and the second side of the second end has a wingspan angle that is approximately the same as that of the second wing span and is in contact with each other.
2. The keel leveling structure according to claim 1, characterized in that, The cross-section at the concave position is a first trapezoid with a large base and a small top, and the cross-section at the second end is a second trapezoid with a small base and a large top. The dimensions of the first trapezoid and the second trapezoid are matched so that the second end is located at the concave position.
3. The keel leveling structure according to claim 1 or 2, characterized in that, The tops of the first and second wingspans are roughly level, while the top of the second end is higher than or equal to the tops of the first and second wingspans.
4. The keel leveling structure according to claim 1, characterized in that, The shape of the second end roughly matches the concave position, and its configuration is such that it forms an interference fit with the concave position.
5. The keel leveling structure according to claim 1, characterized in that, The first connector includes: Adjustable bolt, including a connecting part and a receiving part; The connecting part is provided with external threads, and the inner side of the receiving part is provided with internal threads.
6. The keel leveling structure according to claim 5, characterized in that, The second connector includes: A fastening screw includes a first end and a second end, the first end including an external thread configured to engage with an internal thread of a receiving portion.
7. The keel leveling structure according to claim 1, characterized in that, The base includes a planar portion extending along the length direction. The first and second wingspan sections are connected to the opposite sides of the planar section, respectively, and extend obliquely upward from the planar section, each forming an obtuse angle with the planar section.
8. The keel leveling structure according to claim 1, characterized in that, The keel body includes: Body part; A first bend and a second bend that are connected to the main body and located on opposite sides of the main body; The main body has a truncated cone hole, the bottom of which is the base and the bottom hole of which is a through hole. The first branch line of the truncated cone hole extends to the first bend to form the first wingspan, and the second branch line of the truncated cone hole extends to the second bend to form the second wingspan.
9. The keel leveling structure according to claim 8, characterized in that, The second end includes a cone that roughly matches the truncated cone hole, the taper of which is adapted to the taper of the truncated cone hole, and the cone is configured to form a conical surface fit with the truncated cone hole.
10. A wall panel system, characterized in that, include: Unit wall panels arranged in a spliced configuration; At least one keel leveling structure according to any one of claims 1 to 9 is configured to be connected to the unit wall panel.