Arc-shaped corner waistline component and assembly type wall surface structure

Abstract

The utility model relates to the technical field of wall decoration, and provides an arc-shaped corner waistline component and an assembly type wall surface structure, the arc-shaped corner waistline component is used for being arranged at the corner of a wall, and comprises an arc-shaped supporting part, an arc-shaped supporting part and an arc-shaped supporting part, the facing part is arranged at the front end of the arc-shaped supporting part, and the front surface of the facing part is arc-shaped; the first clamping parts are arranged on the left side and the right side of the arc-shaped supporting part, and the first clamping parts on the two sides are used for being connected to a first wall face and a second wall face which are perpendicular to the wall body correspondingly; and the second clamping parts are arranged on the upper side and the lower side of the arc-shaped supporting part and used for clamping and embedding the arc-shaped modeling plates on the upper side and the lower side correspondingly. The technical problem that in the prior art, an arc-shaped modeling plate and a stainless steel bending component are prone to falling off is solved.

Description

Technical Field

[0001] This utility model relates to the field of wall decoration technology, and more specifically, to an arc-shaped corner waistline component and a prefabricated wall structure. Background Technology

[0002] In wall decoration, wall panels are frequently used in many places. Structurally, decorative wall panels are laid on the wall surface, offering high installation efficiency and a good decorative effect. For wall corners, corner panels (curved panels) are typically needed, requiring edge sealing of the curved panels that are joined vertically. Current edge sealing structures commonly employ bending stainless steel into bent components, inserting these components into the joints between wall panels, and then securing them with adhesive to achieve the sealing effect.

[0003] In existing technologies, stainless steel bent components are typically used for edge sealing. They are usually glued to the edges of the curved panels on the top and bottom sides after applying adhesive. This only achieves the edge sealing effect and does not form a fixed installation relationship with the wall panel or keel, which leads to the problem that the curved panels and stainless steel bent components are prone to falling off.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] The purpose of this utility model is to provide an arc-shaped corner waistline component and a prefabricated wall structure to solve the technical problem that arc-shaped panels and stainless steel bending components are prone to falling off in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] On one hand, this utility model provides an arc-shaped corner waistline component for installation at the corner of a wall, wherein the arc-shaped corner waistline component includes:

[0008] The arc-shaped support section has a front side that is arc-shaped in the left-right direction;

[0009] The decorative face is located at the front end of the arc-shaped support, and the front surface of the decorative face is arc-shaped.

[0010] The first snap-fit ​​part is provided on the left and right sides of the arc-shaped support part. The first snap-fit ​​parts on both sides are used to connect to the first wall surface and the second wall surface that are perpendicular to the wall respectively.

[0011] The second snap-fit ​​part is located on the upper and lower sides of the arc-shaped support part and is used to snap the arc-shaped panels on the upper and lower sides respectively.

[0012] In one embodiment, the first snap-fit ​​part includes a first snap-fit ​​groove, and the first snap-fit ​​grooves at the left and right ends are respectively inserted into the wall panel splicing component on the first wall and the wall panel splicing component on the second wall.

[0013] In one embodiment, the two ends of the arc-shaped support are provided with rear inclined surfaces, which are located behind the opening of the first slot.

[0014] In one embodiment, the second snap-fit ​​portion includes: a second snap-fit ​​groove, wherein the upper and lower second snap-fit ​​grooves are respectively used to snap into the upper and lower curved shape plates.

[0015] In one embodiment, limiting protrusions are respectively provided on the upper and lower surfaces of the arc-shaped support, and the limiting protrusions are spaced apart from the decorative surface to form a second slot.

[0016] In one embodiment, in the vertical direction, the protruding surface of the limiting protrusion protrudes beyond the protruding surface of the decorative surface.

[0017] In one embodiment, the rear side of the arc-shaped support includes: flat surface segments disposed on the left and right sides, the flat surface segments on the two sides being perpendicular to each other and respectively abutting against the wall panel splicing components on both sides.

[0018] In one embodiment, the rear side of the arc-shaped support further includes: a clearance ramp, which is connected to the inner side of the flat surface segment;

[0019] The two sides of the sloping ramps are connected to form a sloping ramp.

[0020] On the other hand, this utility model also provides a prefabricated wall structure, including: a first wall panel and a second wall panel, wherein the first wall panel and the second wall panel are respectively connected to a first wall surface and a second wall surface perpendicular to the wall body by a keel assembly.

[0021] As described above, the curved corner waistline component is connected to the keel assembly of the first wall and the keel assembly of the second wall via the first snap-fit ​​parts on the left and right sides, respectively.

[0022] And an arc-shaped panel, which is connected to the second snap-fit ​​part on the upper and lower sides of the arc-shaped corner waistline component along the vertical direction.

[0023] In one embodiment, the first wall panel and the second wall panel are respectively connected to the keel assembly via wall panel splicing components;

[0024] The wall panel splicing components are I-beams.

[0025] The beneficial effects of the arc-shaped corner waistline component and prefabricated wall structure provided by this utility model are at least as follows: By installing the arc-shaped corner waistline component at the corner of the wall, the arc-shaped decorative panels on the upper and lower sides of the corner are connected. Through the first snap-fit ​​parts on the left and right sides of the arc-shaped support, the first snap-fit ​​parts are connected to the first and second wall surfaces perpendicular to the wall, thereby aligning with the wall panels on the two wall surfaces at the corner, thus allowing the arc-shaped support to be stably fixed at the corner of the wall. Through the second snap-fit ​​parts on the upper and lower sides of the arc-shaped support, the arc-shaped decorative panels spliced ​​in the vertical direction are respectively connected to the arc-shaped decorative panels on the upper and lower sides, thereby forming a stable insertion relationship between the arc-shaped decorative panels on the upper and lower sides and the arc-shaped support, fixing the arc-shaped decorative panel on the front side of the corner of the wall, making the splicing and installation of the arc-shaped decorative panels more convenient, and allowing the arc-shaped decorative panels spliced ​​in the vertical direction to be stably fixed on the front side of the corner of the wall. By setting a decorative surface on the curved front side of the curved support, the decorative surface blocks and conceals the joints of the curved decorative panels on the upper and lower sides, thus achieving an edge-sealing effect. Therefore, this curved corner waistline component not only achieves an edge-sealing effect but also makes the curved decorative panels more stable during splicing and installation, making wall decoration construction more convenient and faster. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A cross-sectional view of an arc-shaped corner waistline component connected to a wall, provided for an embodiment of this utility model;

[0028] Figure 2 A schematic diagram illustrating the assembly and disassembly of one end of an arc-shaped corner waistline component and a wall panel splicing component, provided for an embodiment of this utility model;

[0029] Figure 3 A front view of an arc-shaped corner waistline component provided in an embodiment of this utility model;

[0030] Figure 4 A cross-sectional view of an arc-shaped corner waistline component provided for an embodiment of this utility model;

[0031] Figure 5 A cross-sectional view showing the connection between an arc-shaped corner waistline component and an arc-shaped shaping plate, provided for an embodiment of this utility model.

[0032] The following are the labeling elements in the figure:

[0033] 10. Curved corner waistline component; 100. Curved support part; 110. Flat surface section; 120. Clearance slope; 130. Clearance angle; 200. Decorative surface; 300. First snap-fit ​​part; 310. Snap-fit ​​protrusion; 311. Rear inclined surface; 320. First slot; 400. Second snap-fit ​​part; 410. Limiting protrusion; 420. Second slot; 20. Curved shaped panel; 30. Keel assembly; 40. Wall panel splicing component; 41. Connecting base plate; 42. Support plate; 43. Snap-fit ​​horizontal plate; 44. Snap-fit ​​position; 50. Wall; 51. First wall surface; 52. Second wall surface; 53. Corner; 54. First wall panel; 55. Second wall panel. Detailed Implementation

[0034] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0036] Example 1

[0037] Please see Figure 1 , Figure 5This embodiment provides an arc-shaped corner waistline component 10, which is used to install at the corner 53 of a wall 50 to connect the arc-shaped decorative panels 20 located on the upper and lower sides of the corner 53. For ease of structural description, the two wall surfaces perpendicular to the corner 53 of the wall 50 are referred to as the first wall surface 51 and the second wall surface 52. The directions of the first wall surface 51 and the second wall surface 52 are the left and right sides, that is, the two sides of the corner are the left and right sides. The outward direction of the wall surface is the front, and the vertical direction of the wall surface is the up and down direction. The structure is explained by taking the arc-shaped decorative panels 20 spliced ​​along the up and down direction to cover the corner of the wall 50. This arc-shaped corner waistline component 10 can realize the splicing and installation of multiple arc-shaped decorative panels 20 in the up and down direction and the sealing of the splicing gaps (connection points).

[0038] Please see Figure 1 , Figure 2 , Figure 5 The arc-shaped corner waistline component 10 of this embodiment mainly includes: an arc-shaped support part 100, a decorative surface 200, a first snap-fit ​​part 300, and a second snap-fit ​​part 400. The front side of the arc-shaped support part 100 is arc-shaped in the left-right direction. The entire arc-shaped support part 100 is located at the front side of the corner 53 of the wall 50 to cover the area. The decorative surface 200 is located at the front end of the arc-shaped support part 100, and the front surface of the decorative surface 200 is arc-shaped. The arc-shaped decorative surface 200 matches the arc-shaped decorative panels 20 on the upper and lower sides, thereby realizing the arc-shaped transition at the corner 53. The first snap-fit ​​parts 300 are located on the left and right sides of the arc-shaped support part 100. The first snap-fit ​​parts 300 on both sides are used to connect to the first wall surface 51 and the second wall surface 52 that are perpendicular to the wall 50, respectively. The second snap-fit ​​parts 400 are located on the upper and lower sides of the arc-shaped support part 100 and are used to snap the arc-shaped decorative panels 20 on the upper and lower sides, respectively. The first snap-fit ​​parts 300 on the left and right sides are fixedly connected to the first wall surface 51 and the second wall surface 52, so that the entire arc-shaped corner waistline component 10 can be stably fixed at the corner 53 of the wall 50. The second snap-fit ​​parts 400 on the upper and lower sides are connected to the arc-shaped decorative panels 20 on the upper and lower sides, so that the arc-shaped decorative panels 20 on the upper and lower sides are spliced ​​together through the arc-shaped corner waistline component 10. After the spliced ​​arc-shaped decorative panels 20 are covered at the front of the corner 53, the first wall surface 51 and the second wall surface 52 of the wall 50 are transitioned through the arc-shaped decorative panels 20. The decorative surface 200 has a covering effect on the edges of the arc-shaped decorative panels 20 on the front side, thereby avoiding the edge chipping of the arc-shaped decorative panels 20 and affecting the decorative effect.

[0039] The working principle of the arc-shaped corner waistline component 10 provided in this embodiment is as follows: By installing the arc-shaped corner waistline component 10 at the corner 53 of the wall 50, the arc-shaped decorative panels 20 located on the upper and lower sides of the corner 53 are connected. Through the first snap-fit ​​parts 300 on the left and right sides of the arc-shaped support, the first snap-fit ​​parts 300 are connected to the first wall surface 51 and the second wall surface 52 perpendicular to the wall 50, thereby aligning with the wall panels on the two wall surfaces at the corner 53 of the wall 50, so that the arc-shaped support 100 can be stably fixed at the corner 53 of the wall 50. The second snap-fit ​​portions 400 on the upper and lower sides of the arc-shaped support 100 connect the arc-shaped decorative panels 20 spliced ​​in the vertical direction, thereby forming a stable interlocking relationship between the arc-shaped decorative panels 20 on the upper and lower sides and the arc-shaped support 100. This fixes the arc-shaped decorative panel 20 at the front of the corner 53 of the wall 50, making the splicing and installation of the arc-shaped decorative panel 20 more convenient. The arc-shaped decorative panel 20 spliced ​​in the vertical direction can be stably fixed at the front of the corner of the wall 50. By setting a decorative surface 200 on the arc-shaped front of the arc-shaped support 100, the decorative surface 200 blocks and conceals the splicing joint of the arc-shaped decorative panels 20 on the upper and lower sides, thereby achieving an edge sealing effect. Therefore, this arc-shaped corner waistline component 10 can achieve an edge sealing effect and make the arc-shaped decorative panel 20 more stable during splicing and installation, making wall decoration construction more convenient and faster.

[0040] Please see Figure 1 , Figure 3 Furthermore, in this embodiment, the arc-shaped support 100, the decorative surface 200, the first snap-fit ​​part 300, and the second snap-fit ​​part 400 are integrally formed, allowing the entire arc-shaped corner waistline component 10 to be extruded and shaped using a standard waistline mold, forming a precisely sized arc-shaped corner waistline component 10. Through standardized factory customization and integrated molding production, it can become a standard component, uniformly matched with the arc-shaped panel 20, and then directly assembled and spliced ​​with the arc-shaped panel 20 on-site. This allows for mass production, reducing decoration costs and improving construction efficiency. It avoids the difficulty in controlling the technical process of on-site bending production of stainless steel bending components. In this embodiment, the surface color or pattern of the decorative layer is unified with the effect of the arc-shaped panel 20, thus achieving irregularly shaped wall surfaces that are difficult to achieve with traditional wood veneer.

[0041] Please see Figure 1 , Figure 2 , Figure 3Furthermore, the first engaging portion 300 in this embodiment specifically includes a first engaging groove 320. The first engaging groove 320 is formed on the left and right end faces of the arc-shaped support portion 100, and engaging protrusions 310 are formed on the rear side of the opening of the first engaging groove 320. The first engaging grooves 320 at the left and right ends are respectively engaged with the wall panel splicing components 40 on the first wall surface 51 and the second wall surface 52. In the specific structure, keel assemblies 30 are fixed on both the first wall surface 51 and the second wall surface 52 on the left and right sides of the corner 53. The first wall panel 54 and the second wall panel 55 are fixed to the keel assembly 30 via the wall panel splicing components 40, wherein the first wall panel 54 covers the front side of the first wall surface 51, and the second wall panel 55 covers the front side of the second wall surface 52. Since the wall panel splicing components 40 on the left and right sides are stably fixed to the keel assembly 30 by screws, etc., when the first slot 320 is engaged with the wall panel splicing component 40, the arc-shaped support 100 can be stably fixed to the wall 50.

[0042] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment, the wall panel splicing component 40 can be an I-beam. The I-beam mainly includes a connecting base plate 41, a support plate 42, and a snap-fit ​​horizontal plate 43. The connecting base plate 41 is fixedly connected to the keel assembly 30 by screws. The support plate 42 is vertically connected to the connecting base plate 41, and the snap-fit ​​horizontal plate 43 is vertically connected to the support plate 42, thus forming a snap-fit ​​position 44 between the connecting base plate 41 and the snap-fit ​​horizontal plate 43. In use, on the first wall surface 51, one side of the I-beam snaps into the first wall panel 54, and the other side snaps into the first slot 320. On the second wall surface 52, one side of the I-beam snaps into the second wall panel 55, and the other side snaps into the first slot 320.

[0043] Please see Figure 1 , Figure 2 , Figure 3 When the first slot 320 engages with the I-beam, the engaging horizontal plate 43 of the I-beam inserts into the first slot 320, causing the engaging protrusion 310 on the arc-shaped support 100 to engage with the engaging position 44, thus fixing the arc-shaped support 100 onto the I-beam and achieving stable fixation of the arc-shaped corner waistline component 10. Furthermore, when the first slot 320 is fitted onto the engaging horizontal plate 43, the front decorative surface 200 covers the I-beam, and the other side of the I-beam is also covered by the front of the first wall panel 54, effectively concealing the I-beam at the rear.

[0044] Please see Figure 1 , Figure 2 , Figure 3Furthermore, in this embodiment, the arc-shaped support portion 100 has rearward inclined surfaces 311 at both ends, which are located behind the opening of the first slot 320. Specifically, the rearward inclined surfaces 311 are formed on the end face of the snap-fit ​​protrusion 310, and gradually move away from the opening of the first slot 320 from front to back. When the snap-fit ​​protrusion 310 is inserted into the snap-fit ​​position 44, the rearward inclined surfaces 311 cause the end face of the snap-fit ​​protrusion 310 to be concave, preventing complete contact between the rearward inclined surfaces 311 and the side of the support plate 42 of the I-beam. This avoids the situation where the end face of the snap-fit ​​protrusion 310 contacts the side of the support plate 42, preventing the snap-fit ​​protrusion 310 from being fully inserted into the snap-fit ​​position 44. The inclined arrangement of the rearward inclined surfaces 311 allows the snap-fit ​​protrusion 310 to be fully inserted into the snap-fit ​​position 44 of the I-beam, achieving a more stable fixation.

[0045] Please see Figure 1 , Figure 4 , Figure 5 Furthermore, the second snap-fit ​​part 400 in this embodiment specifically includes a second snap-fit ​​groove 420, with the upper and lower second snap-fit ​​grooves 420 respectively used to snap the upper and lower curved shaped plates 20. Taking the upper curved shaped plate 20 as an example, the lower edge of the curved shaped plate 20 can be directly inserted into the second snap-fit ​​groove 420 to achieve snap-fit ​​installation of the curved shaped plate 20, realizing prefabricated installation and improving the efficiency of decoration construction.

[0046] Please see Figure 1 , Figure 4 , Figure 5 Furthermore, in this embodiment, limiting protrusions 410 are respectively provided on the upper and lower surfaces of the arc-shaped support portion 100, and the limiting protrusions 410 and the decorative surface portion 200 are spaced apart to form a second slot 420. When the edge of the arc-shaped plate 20 is inserted into the second slot 420, the decorative surface portion 200 limits the arc-shaped plate 20 on the front side, and the limiting protrusions 410 limit the arc-shaped plate 20 on the rear side, thereby stably securing the edge of the arc-shaped plate 20 into the second slot 420.

[0047] Please see Figure 4 , Figure 5Furthermore, in the vertical direction, the protruding surface of the limiting protrusion 410 protrudes beyond the protruding surface of the decorative surface 200. Taking the limiting protrusion 410 on the upper side of the arc-shaped support 100 and the upper part of the decorative surface 200 as examples, the upper surface of the upper limiting protrusion 410 and the upper surface of the decorative surface 200 are both protruding surfaces, so the upper surface of the upper limiting protrusion 410 is higher than the upper surface of the decorative surface 200. Correspondingly, the lower surface of the lower limiting protrusion 410 is lower than the lower surface of the decorative surface 200. By setting the limiting protrusion 410 relatively high, the rear inner wall of the second slot 420 is relatively high, so that when the limiting protrusion 410 blocks the rear wall of the arc-shaped plate 20, it can provide more stable support, keeping the arc-shaped plate 20 inserted in the second slot 420 stable.

[0048] Please see Figure 1 , Figure 3 Furthermore, the rear side of the arc-shaped support 100 in this embodiment includes: flat surface segments 110 disposed on the left and right sides, the flat surface segments 110 on both sides being perpendicularly disposed and respectively abutting against the wall panel splicing members 40 on both sides. The flat surface segments 110 on the left and right sides are respectively disposed parallel to the first wall surface 51 and the second wall surface 52, so that the rear surface of the snap-fit ​​protrusions 310 at both ends is flat. Thus, when the snap-fit ​​protrusions 310 are inserted into the snap-fit ​​positions 44, the rear surface of the snap-fit ​​protrusions 310 contacts the surface of the connecting base plate 41. In this way, the bottom surface of the connecting base plate 41 makes long-distance contact with the snap-fit ​​protrusions 310 through the flat surface segments 110, so the snap-fit ​​protrusions 310 are not easy to loosen when inserted into the I-beam, ensuring the stability of the connection.

[0049] Please see Figure 1 , Figure 3 Furthermore, the rear side of the arc-shaped support portion 100 in this embodiment also includes a clearance ramp 120, which is connected to the inner side of the flat surface segment 110; the clearance ramps 120 on both sides are connected to form a clearance angle 130. In the specific structure, the flat surface segment 110 is inclined to one side facing the center line in the left and right directions to form the clearance ramp 120. The clearance ramps 120 on the left and right sides are connected at the center line position in the left and right directions of the arc-shaped support portion 100 to form a clearance angle 130. The clearance ramp 120 gradually approaches the decorative surface 200 along the center line direction in the left and right directions, thereby making the clearance angle 130 an obtuse angle. In this way, by tilting the clearance ramp 120 outward, the apex corner of the corner 53 can be cleared, thereby making the arc-shaped support portion 100 stably fixed to the front side of the apex corner of the corner 53.

[0050] Example 2

[0051] Please see Figure 1 , Figure 2This embodiment provides a prefabricated wall structure, including: a first wall panel 54 and a second wall panel 55, an arc-shaped corner waistline component 10 as described above, and an arc-shaped decorative panel 20. The first wall panel 54 and the second wall panel 55 are respectively connected to the first wall surface 51 and the second wall surface 52 perpendicular to the wall 50 via keel assemblies 30. The arc-shaped corner waistline component 10 is respectively connected to the keel assembly 30 of the first wall surface 51 and the keel assembly 30 of the second wall surface 52 via first snap-fit ​​portions 300 on the left and right sides. The arc-shaped decorative panel 20 is connected to the second snap-fit ​​portions 400 on the upper and lower sides of the arc-shaped corner waistline component 10 in the vertical direction.

[0052] Please see Figure 1 , Figure 2 In this embodiment, the curved corner waistline component 10 can fix the curved decorative panel 20 in the vertical direction, so that the left and right sides of the curved decorative panel 20 are connected to the first wall panel 54 in front of the first wall 51 and the second wall panel 55 in front of the second wall 52, respectively. The curved decorative panel 20 spliced ​​in the vertical direction can be stably fixed to the front corner of the wall 50. By setting the decorative surface 200 on the curved front side of the curved support 100, the decorative surface 200 blocks and conceals the splicing points of the curved decorative panels 20 on the upper and lower sides, thereby achieving an edge sealing effect; the curved decorative panel 20 is more stable during splicing and installation, making wall decoration construction more convenient and faster.

[0053] Please see Figure 1 , Figure 2 Furthermore, in this embodiment, the first wall panel 54 and the second wall panel 55 are respectively connected to the keel assembly 30 via wall panel splicing components 40. The wall panel splicing components 40 are I-beams. The specific installation method of the I-beams is as described above.

[0054] In summary, the curved corner molding component and prefabricated wall structure proposed in this application enable the curved corner molding component as a standard component to achieve irregularly shaped wall surfaces that are difficult to achieve with traditional wood veneer. The curved corner molding component and the curved decorative panels to be spliced ​​can be standardized and customized in the molding factory to form a uniform splicing structure, avoiding the problems of poor dimensional control and splicing effect during on-site bending of stainless steel. Using the curved corner molding component allows for unified installation with prefabricated wall panels, making installation more convenient.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An arc-shaped corner molding component, used for installation at the corner of a wall, characterized in that, The arc-shaped corner waistline component includes: An arc-shaped support portion, wherein the front side of the arc-shaped support portion is arc-shaped in the left-right direction; The decorative surface is disposed at the front end of the arc-shaped support portion, and the front surface of the decorative surface is arc-shaped; The first snap-fit ​​part is provided on the left and right sides of the arc-shaped support part, and the first snap-fit ​​parts on both sides are used to connect to the first wall surface and the second wall surface that are perpendicular to the wall respectively. The second snap-fit ​​part is disposed on the upper and lower sides of the arc-shaped support part and is used to snap the arc-shaped plates on the upper and lower sides respectively.

2. The arc-shaped corner waistline component as described in claim 1, characterized in that, The first snap-fit ​​part includes a first snap-fit ​​groove, and the first snap-fit ​​grooves at the left and right ends are respectively inserted into the wall panel splicing component on the first wall surface and the wall panel splicing component on the second wall surface.

3. The arc-shaped corner waistline component as described in claim 2, characterized in that, The two ends of the arc-shaped support are provided with rear inclined surfaces, which are located behind the opening of the first slot.

4. The arc-shaped corner waistline component as described in claim 1, characterized in that, The second snap-fit ​​part includes: a second snap-fit ​​groove, the second snap-fit ​​grooves on the upper and lower sides are respectively used to snap-fit ​​the arc-shaped plates on the upper and lower sides.

5. The arc-shaped corner waistline component as described in claim 4, characterized in that, Limiting protrusions are respectively provided on the upper and lower surfaces of the arc-shaped support, and the limiting protrusions are spaced apart from the decorative surface to form the second slot.

6. The arc-shaped corner waistline component as described in claim 5, characterized in that, In the vertical direction, the protruding surface of the limiting protrusion protrudes beyond the protruding surface of the decorative surface.

7. The arc-shaped corner waistline component as described in claim 1, characterized in that, The rear side of the arc-shaped support includes: flat surface segments arranged on the left and right sides, the flat surface segments on both sides being arranged perpendicularly to each other and respectively abutting against the wall panel splicing components on both sides.

8. The arc-shaped corner waistline component as described in claim 7, characterized in that, The rear side of the arc-shaped support also includes: a clearance ramp, which is connected to the inner side of the flat surface section; The two sides of the sloping ramps are connected to form a sloping ramp.

9. A prefabricated wall structure, characterized in that, include: The first wall panel and the second wall panel are respectively connected to the first wall surface and the second wall surface, which are perpendicular to each other, by a keel assembly. The arc-shaped corner waistline component as described in any one of claims 1-8 is connected to the keel assembly of the first wall and the keel assembly of the second wall respectively through the first snap-fit ​​parts on the left and right sides; And an arc-shaped shaping plate, which is connected to the second snap-fit ​​parts on the upper and lower sides of the arc-shaped corner waistline component in the vertical direction.

10. The prefabricated wall structure as described in claim 9, characterized in that, The first wall panel and the second wall panel are respectively connected to the keel assembly via wall panel splicing components; The wall panel splicing components are I-beams.

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