Splicing assembly and wallboard using same

Abstract

The utility model discloses a splicing assembly and a wallboard using the same, a splicing piece comprises two splicing pieces which are mutually spliced in an inverted manner, each splicing piece comprises a separation part, a first clamping block and a second clamping block, each splicing piece is divided into a splicing space and an installation space by the separation part, the installation space is used for installing the splicing pieces on a wall body, and the splicing pieces are connected with the first clamping block and the second clamping block. The splicing space is used for splicing adjacent splicing pieces; the splicing piece is provided with a plurality of clamping notches in the installation space, the first clamping blocks and the second clamping blocks are arranged on the face, located in the splicing space, of the separation part, the first clamping blocks are connected with the corresponding clamping notches in a clamped mode, and the second clamping blocks are connected with the corresponding clamping notches in a clamped mode. And the first clamping block and the second clamping block movably extend into the mounting space of the adjacent splicing piece through the corresponding clamping notches. According to the scheme, the splicing piece is applied to wallboard splicing, and the problems that in the prior art, fixing pieces such as screws are adopted for splicing wallboards, the splicing working steps are complex, and cracks are prone to occurring can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to splicing wallboard technical field, specifically a splicing assembly and the wallboard using it. BACKGROUND

[0002] In the field of building structures, the splicing of wallboards is a crucial link that directly affects the overall stability and aesthetics of the building. Traditional wallboard splicing methods generally use screws and other fixing elements for connection, that is, two or more wallboards are tightly fixed together using screws. Although this splicing method ensures the connection strength of the wallboards to some extent, it has many deficiencies and limitations.

[0003] Firstly, the traditional screw splicing method is complicated. In actual operation, the construction personnel needs to first accurately position and mark the wallboard, then drill holes at the specified positions, and finally pass the screws into the holes and tighten them. This series of steps not only consumes time and effort, but also requires higher skills of the construction personnel. If the positioning is not accurate or the drilling depth is not appropriate, it may affect the splicing effect of the wallboard.

[0004] Secondly, cracks are easily generated during drilling. Due to the brittleness of the wallboard material and the vibration and heat generated during drilling, cracks are easily generated at the drilling positions of the wallboard. These cracks not only reduce the strength of the wallboard, but also may become potential safety hazards of the building structure. SUMMARY

[0005] To overcome the above-mentioned defects, the utility model provides a splicing assembly and a wallboard using the same. The splicing piece of the present scheme is applied to wallboard splicing, which can effectively solve the problems of complex splicing work steps and easy cracking when traditional screws and other fixing elements are used to splice wallboards.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A splicing assembly and a wallboard using the same, comprising two mutually inverted splicing pieces, the splicing piece comprising a partition, a first clamping block and a second clamping block, the splicing piece being divided into a splicing space and a mounting space by the partition, the mounting space being used for mounting the splicing piece on a wall, and the splicing space being used for splicing adjacent splicing pieces;

[0008] The splicing piece is provided with a plurality of clamping notches in the mounting space, the first clamping block and the second clamping block are arranged on one side of the partition located in the splicing space, the first clamping block and the corresponding clamping notches are clamped with each other, the second clamping block and the corresponding clamping notches are clamped with each other, and the first clamping block and the second clamping block are movably inserted into the mounting space of the adjacent splicing piece through the corresponding clamping notches.

[0009] The splicing piece further comprises a first mounting portion, a second mounting portion and a splicing portion,

[0010] One end of the partition portion is vertically connected with the first mounting portion, and the other end of the partition portion is vertically connected with the second mounting portion, the first mounting portion, the second mounting portion and the partition portion form a C-shaped mounting space, the first mounting portion and the partition portion are both provided with the clamping notch, and the clamping notch and the mounting space are in communication with each other;

[0011] One end of the partition portion close to the second mounting portion is vertically connected with the splicing portion, the splicing portion and the partition portion form an L-shaped splicing space, and the first clamping block and the second clamping block are both located in the splicing portion.

[0012] The clamping notch comprises a first clamping hole, the splicing portion is protruded to one side close to the partition portion to form the first clamping block, the first mounting portion is provided with a first clamping hole, the first clamping hole and the mounting space are in communication with each other, the first clamping hole and the first clamping block are one-to-one corresponding, and the first clamping block and the first clamping hole of the adjacent splicing piece are clamped with each other.

[0013] The clamping notch further comprises a second clamping hole, the splicing portion is provided with an avoiding groove on one side of the first clamping block, the avoiding groove is fixedly connected with a second clamping block on one side close to the partition portion, and one end of the second clamping block away from the partition portion is bent to form a Z-shaped elastic sheet structure.

[0014] The first mounting portion is provided with a first clamping sub-hole, the partition portion is provided with the second clamping sub-hole, the first clamping sub-hole and the second clamping sub-hole are in communication with each other, the second clamping sub-hole has an L-shaped cross section, and the second clamping block and the second clamping hole of the adjacent splicing piece are clamped with each other.

[0015] The second mounting portion has a double-layer structure.

[0016] The splicing main body, the partition portion, the first mounting portion, the second mounting portion and the splicing portion have an integral molding structure.

[0017] A wallboard uses the splicing assembly, the wallboard comprises a splicing piece and a wall body, the wall body is fixedly installed with the splicing piece on both left and right sides, and the splicing pieces on both left and right sides of the wall body are oppositely arranged; the wall body comprises a sandwich layer and a decorative surface layer, and the sandwich layer is installed with the decorative surface layer on both sides;

[0018] The first mounting part of the splicing component is located between the interlayer and the decorative surface layer, the second mounting part of the splicing component is located between the interlayer and another decorative surface layer, the interface of the interlayer is located within the installation space, and two adjacent walls are spliced ​​together by two inverted splicing components.

[0019] The interlayer and the two decorative surface layers are arranged in a staggered manner, and the left and right sides of the wall form opposite stepped interfaces, and the wall has a centrally symmetrical structure.

[0020] It also includes a first fastener and a second fastener, the end of the first fastener passing through one of the decorative surface layers, the first mounting portion and the interlayer in sequence;

[0021] The end of the second fastener passes through another of the decorative surface layers, the second mounting portion, and the interlayer in sequence.

[0022] The interlayer is made of rock wool, and the decorative surface layer is made of gypsum board.

[0023] The technical solution of this utility model can include the following beneficial effects:

[0024] 1. When used in wall panel splicing, splicing components can effectively solve the problems of complex splicing steps and easy cracking caused by traditional methods of splicing wall panels using screws and other fasteners.

[0025] 2. By setting a first locking block and a second locking block, the number of connection points between two adjacent splicing parts is increased, thereby enhancing the stability of the connection and making the splicing parts more stable when subjected to external forces, and less prone to loosening or falling off. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a splicing component according to one embodiment of the present invention;

[0027] Figure 2 This is a cross-sectional view of one embodiment of the wall panel of this utility model. Figure 1 ;

[0028] Figure 3 This is a cross-sectional view of a wall panel according to one embodiment of the present invention. Figure 2 ;

[0029] Among them, 1. splicing component; 11. splicing space; 12. installation space; 2. partition; 21. first installation part; 22. second installation part; 23. splicing part; 3. first snap-fit ​​block; 31. second snap-fit ​​block; 32. first snap-fit ​​hole; 33. clearance groove; 34. first snap-fit ​​sub-hole; 35. second snap-fit ​​sub-hole; 36. second snap-fit ​​hole; 4. wall; 41. decorative surface layer; 42. interlayer; 44. first fastener; 45. second fastener. DETAILED DESCRIPTION

[0030] The technical solutions of the utility model are further illustrated in the description below in conjunction with the drawings and specific embodiments.

[0031] In the description of the utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0032] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "splicing" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] The technical solutions of the utility model are further illustrated in the description below in conjunction with the drawings and specific embodiments. Figures 1 to 3 , a splicing assembly and a wallboard using the same are described.

[0035] A splicing assembly comprises two splicing pieces 1 which are spliced in reverse to each other, the splicing piece 1 comprises a partition part 2, a first clamping block 3 and a second clamping block 31, the splicing piece 1 is divided into a splicing space 11 and a mounting space 12 by the partition part 2, the mounting space 12 is used for mounting the splicing piece 1 on a wall body 4, and the splicing space 11 is used for splicing adjacent splicing pieces 1.

[0036] The splicing piece 1 is provided with a plurality of clamping notches in the mounting space 12, the first clamping block 3 and the second clamping block 31 are arranged on one side of the partition part 2 in the splicing space 11, the first clamping block 3 is clamped with the corresponding clamping notches, the second clamping block 31 is clamped with the corresponding clamping notches, and the first clamping block 3 and the second clamping block 31 are movably inserted into the mounting space 12 of the adjacent splicing piece 1 through the corresponding clamping notches.

[0037] The splicing piece 1 is installed on two wall bodies 4 respectively, and then two mutually inverted splicing pieces 1 are close to each other. At this time, the first clamping block 3 and the corresponding clamping notch are clamped with each other, and the second clamping block 31 and the corresponding clamping notch are clamped with each other. At this time, the first clamping block 3 and the second clamping block 31 can enter the installation space 12 of the adjacent splicing piece 1, thereby connecting the two splicing pieces 1 together, and further splicing the two adjacent wall bodies 4. At this time, the splicing process of the wall body 4 does not need complicated drilling, screwing and other complex operations, greatly simplifying the installation process and saving installation time and labor cost.

[0038] The splicing piece 1 of the scheme increases the connection points between the two adjacent splicing pieces 1 by setting the first clamping block 3 and the second clamping block 31, thereby enhancing the stability of the connection, making the splicing piece 1 more stable when bearing external force and not easy to loosen or fall off. Therefore, the splicing piece 1 of the scheme can effectively solve the problem that the traditional splicing of the wall body 4 by using screws and other fixing pieces is complex and prone to cracking.

[0039] The splicing piece 1 further comprises a first mounting portion 21, a second mounting portion 22 and a splicing portion 23,

[0040] One end of the partition portion 2 is vertically connected with the first mounting portion 21, and the other end of the partition portion 2 is vertically connected with the second mounting portion 22. The first mounting portion 21, the second mounting portion 22 and the partition portion 2 form a C-shaped installation space 12. The first mounting portion 21 and the partition portion 2 are both provided with the clamping notch, and the clamping notch and the installation space 12 are in communication with each other.

[0041] The splicing portion 23 is vertically connected with one end of the partition portion 2 close to the second mounting portion 22, and the splicing portion 23 and the partition portion 2 form an L-shaped splicing space 11. The first clamping block 3 and the second clamping block 31 are both located in the splicing portion 23.

[0042] The first mounting portion 21, the second mounting portion 22 and the partition portion 2 are vertically connected to form a C-shaped structure, wherein the inner side of the C-shaped structure is the installation space 12. When the side wall of the wall body 4 is located in the installation space 12, the first mounting portion 21, the second mounting portion 22 and the partition portion 2 are all closely combined with the multiple side walls of the wall body 4. During the splicing process of the wall body 4, the loosening, displacement or even falling off of the splicing piece 1 can be effectively reduced, thereby ensuring the stability during long-time use.

[0043] Moreover, since the installation space 12 is closely combined with the multiple side walls of the wall body 4, the self-gravity of the splicing piece 1 and other external forces that the splicing piece 1 may face can be evenly dispersed to the multiple side walls of the wall body 4, so that the entire structure can bear greater load, thereby prolonging the service life of the splicing assembly and the wall body 4.

[0044] The splicing part 23 is connected perpendicularly with the partition part 2 to form a splicing space 11, at this time, the splicing space 11 is spliced with the mounting space 12 of the adjacent splicing piece 1 through the first clamping block 3 and the second clamping block 31, so that the splicing part 23 is tightly attached to the first mounting part 21 of the adjacent splicing piece 1, and the partition part 2 is tightly attached to the partition part 2 of the adjacent splicing piece 1, so that the external force can be more reasonably transmitted and dispersed in the entire splicing assembly, avoiding the situation that local stress is too large to cause damage to a splicing piece 1, improving the bearing capacity of the entire splicing assembly system, and prolonging the service life.

[0045] The clamping notches are distributed on the first mounting part 21 and the partition part 2, and the first clamping block 3 and the second clamping block 31 are located on the splicing part 23, which can ensure that the first clamping block 3 and the second clamping block 31 can accurately extend into the corresponding clamping notches when the two adjacent and inverted splicing pieces are spliced with each other, without the need for complex measurement or repeated adjustment of angle and other tedious steps, greatly improving the installation efficiency and accuracy, and improving the assembly time and efficiency of workers.

[0046] The clamping notches include first clamping holes 32, the splicing part 23 is protruded towards the side close to the partition part 2 to form the first clamping block 3, the first mounting part 21 is provided with the first clamping holes 32, the first clamping holes 32 are in communication with the mounting space 12, the first clamping holes 32 correspond to the first clamping block 3 one by one, and the first clamping block 3 is clamped with the first clamping hole 32 of the adjacent splicing piece 1.

[0047] The first clamping hole 32 corresponds to the first clamping block 3 of the adjacent splicing piece 1 one by one and is clamped with each other, so that the first clamping block 3 is accurately embedded in the first clamping hole 32 of the adjacent splicing piece 1, so that the adjacent splicing pieces 1 can be firmly fixed during splicing, effectively avoiding loosening, displacement and other phenomena caused by external force (such as daily collision, vibration or slight pulling), and ensuring the stability of the entire splicing assembly.

[0048] If a splicing piece 1 needs to be replaced due to damage or other conditions, the worker only needs to exert appropriate external force to pull out the first clamping block 3 from the corresponding first clamping hole 32 to remove the splicing piece 1, which is relatively simple and convenient, and will not cause excessive damage to other normal splicing pieces 1, facilitating local repair and replacement work, and reducing the difficulty and cost of later maintenance.

[0049] The clamping notch further comprises a second clamping hole 36, the splicing part 23 is provided with an avoiding slot 33 on one side of the first clamping block 3, the avoiding slot 33 is fixedly connected with a second clamping block 31 on one side close to the partition part 2, and one end of the second clamping block 31 away from the partition part 2 is bent to form a Z-shaped spring plate structure.

[0050] The first mounting part 21 is provided with a first clamping sub-hole 34, the partition part 2 is provided with a second clamping sub-hole 35, the first clamping sub-hole 34 and the second clamping sub-hole 35 are in communication with each other to form the second clamping hole 36 with an L-shaped cross section, and the second clamping block 31 and the second clamping hole 36 of the adjacent splicing piece 1 are clamped with each other.

[0051] The Z-shaped spring plate structure has a certain elasticity, when the second clamping block 31 is clamped into the second clamping hole 36 of the adjacent splicing piece 1, the Z-shaped spring plate structure will be moderately deformed, and then tightly clamped in the corresponding second clamping hole 36 by virtue of the elastic restoring force of itself, so as to enhance the connection strength between the entire splicing assembly, effectively resist various external force interference in the outside world, such as collision and vibration in daily use, and even in some application scenarios (such as splicing type storage rack) that need to bear a certain weight or tension, the splicing piece 1 can also be ensured not to be easily loosened or separated, and the long-term stability of the splicing structure is ensured.

[0052] The second mounting part 22 is a double-layer structure.

[0053] The double-layer structure of the second mounting part 22 can provide a thicker and more solid support base. When the splicing piece 1 is installed on the wall 4, the double-layer second mounting part 22 can better resist various pressures and tensions caused by the weight of the splicing piece 1 itself, external impact or long-term use, effectively reduce the risk of loosening, deformation or even falling of the splicing piece 1, and ensure that the splicing assembly can be stably fixed on the surface of the wall 4 for a long time.

[0054] The splicing body, the partition part 2, the first mounting part 21, the second mounting part 22 and the splicing part 23 are an integral molding structure.

[0055] The integral molding structure can effectively reduce the hidden danger caused by loose connection, wear and tear and the like. In the long-term use process, the connection of the parts does not need to be frequently checked and maintained, and the parts can maintain a good use state for a long time, thereby reducing the frequency and cost of later maintenance.

[0056] The wallboard uses a splicing assembly, and the wallboard comprises splicing pieces 1 and wall bodies 4, the splicing pieces 1 are fixedly installed on the left and right sides of the wall bodies 4, and the splicing pieces 1 on the left and right sides of the wall bodies 4 are oppositely arranged; the wall body 4 comprises a sandwich layer 42 and a decorative surface layer 41, and the sandwich layer 42 is provided with the decorative surface layer 41 on both sides;

[0057] The first mounting portion 21 of the splicing piece 1 is located between the sandwich layer 42 and the decorative surface layer 41, the second mounting portion 22 of the splicing piece 1 is located between the sandwich layer 42 and another decorative surface layer 41, the interface of the sandwich layer 42 is located in the mounting space 12, and the two adjacent wall bodies 4 are spliced with each other through two mutually inverted splicing pieces 1.

[0058] By installing the splicing pieces 1 on the left and right sides of the wall bodies 4, the first mounting portion 21 and the second mounting portion 22 of the splicing piece 1 are respectively matched with the two side surfaces of the sandwich layer 42, so that the splicing piece 1 is closely combined with the wall body 4 from multiple directions. When the two adjacent wall bodies 4 are spliced with each other, the two wall bodies 4 can be spliced through the splicing pieces 1, and the problem that the adjacent wall bodies 4 are connected through screws, the connection steps are complex, and cracks are prone to occur is effectively solved.

[0059] With reference to Figure 2 and Figure 3 , the interface of the splicing piece 1 and the wall body 4 is closely matched, and from the outside, the complex mounting structure and the splicing traces cannot be seen, and the entire wallboard presents a simple and neat appearance effect.

[0060] The sandwich layer 42 and the two decorative surface layers 41 are arranged in a staggered manner, the left and right sides of the wall body 4 form oppositely arranged stepped interfaces, and the wall body 4 has a central symmetry structure.

[0061] The stepped interfaces on the two sides of the wall body 4 can play a positioning role in the splicing process, so that the interfaces of the adjacent wallboards can be precisely engaged with each other in the splicing process.

[0062] Meanwhile, the stepped interface can also bear force in cooperation, and the structural stability of the wall body 4 is improved. When the wall body 4 is subjected to vertical pressure (such as the load of the upper floor) or horizontal external force (such as wind force), the stepped interfaces are engaged and extruded with each other, so that the force can be evenly dispersed along the stepped surfaces to the entire wall body 4 and the splicing piece 1 connected thereto, the stress is avoided to be concentrated in a certain place, the bearing capacity of the wall body 4 is further improved, the structural stability of the wall body 4 is improved together with the splicing piece 1, the service life of the wallboard is prolonged, the cost of later maintenance and reinforcement is reduced.

[0063] Further, the first fixing piece 44 and the second fixing piece 45 are arranged, the end of the first fixing piece 44 sequentially penetrates through one of the decorative surface layers 41, the first mounting portion 21 and the sandwich layer 42,

[0064] The end of the second fixing member 45 successively passes through another decorative surface layer 41, the second mounting portion 22 and the interlayer 42.

[0065] It is worth mentioning that the first fixing member 44 and the second fixing member 45 are preferably screws. The first fixing member 44 and the second fixing member 45 tightly connect the structure layers in a manner that can avoid the appearance of gaps or looseness between the layers.

[0066] The interlayer 42 is a rock wool material, and the decorative surface layer 41 is a gypsum board.

[0067] Rock wool belongs to inorganic fiber thermal insulation materials, and a large number of pore structures exist inside, which can effectively hinder the transfer of heat. When used as the interlayer 42 of the wall body 4, whether in cold winter to prevent indoor heat from being lost to the outside through the wall body 4, or in hot summer to block external heat from entering the room, rock wool can play an excellent thermal insulation performance, significantly reduce the heating and cooling energy consumption of the building, help users save energy costs, and create a comfortable indoor thermal environment.

[0068] Although the thermal conductivity coefficient of the gypsum board itself is slightly higher than that of the rock wool, it covers both sides of the rock wool interlayer 42 and plays a certain auxiliary thermal insulation role, and can also reduce the exchange of heat through the surface of the wall body 4. The relatively dense structure of the gypsum board can block air convection to a certain extent, and in combination with the thermal insulation performance of the rock wool, a more perfect thermal insulation system is formed, further enhancing the overall thermal insulation effect of the wall body 4, making the indoor temperature more stable, and improving the comfort of living or using.

[0069] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A splicing assembly, characterized by, The utility model provides a kind of wall body connecting piece, including two mutually inverted splices splices (1), the splices (1) include partition (2), first clamping block (3) and second clamping block (31), the splices (1) are divided into splicing space (11) and installation space (12) with the partition (2), the installation space (12) is used to install splicing piece (1) in wall body (4), the splicing space (11) is used to splice adjacent the splicing piece (1). The splicing piece (1) is provided with a plurality of clamping notches in the installation space (12), the first clamping block (3) and the second clamping block (31) are arranged on one side of the partition (2) in the splicing space (11), the first clamping block (3) is clamped with the corresponding clamping notch, the second clamping block (31) is clamped with the corresponding clamping notch, and the first clamping block (3) and the second clamping block (31) are movably inserted into the installation space (12) of the adjacent splicing piece (1) through the corresponding clamping notch.

2. A splice assembly as claimed in claim 1, characterised in that The splicing piece (1) further includes a first mounting portion (21), a second mounting portion (22) and a splicing portion (23), One end of the partition (2) is connected perpendicularly to the first mounting portion (21), the other end of the partition (2) is connected perpendicularly to the second mounting portion (22), the first mounting portion (21), the second mounting portion (22) and the partition (2) form a C-shaped installation space (12), the first mounting portion (21) and the partition (2) are both provided with the clamping notches, and the clamping notches are in communication with the installation space (12). The splicing portion (23) is connected perpendicularly to one end of the partition (2) close to the second mounting portion (22), the splicing portion (23) and the partition (2) form an L-shaped splicing space (11), and the first clamping block (3) and the second clamping block (31) are both located in the splicing portion (23).

3. A splice assembly as claimed in claim 2, characterised in that The clamping notches include first clamping holes (32), the splicing portion (23) is protruded to one side close to the partition (2) to form the first clamping block (3), the first mounting portion (21) is provided with the first clamping holes (32), the first clamping holes (32) are in communication with the installation space (12), the first clamping holes (32) correspond to the first clamping blocks (3) one by one, and the first clamping blocks (3) are clamped with the first clamping holes (32) of the adjacent splicing piece (1).

4. A splice assembly as claimed in claim 2, characterised in that The clamping notches further include second clamping holes (36), the splicing portion (23) is provided with an avoiding groove (33) on one side of the first clamping block (3), the second clamping block (31) is fixedly connected to one side of the avoiding groove (33) close to the partition (2), one end of the second clamping block (31) away from the partition (2) is bent to form a Z-shaped spring structure. The first mounting part (21) is provided with a first clamping sub-hole (34), the partition part (2) is provided with a second clamping sub-hole (35), the first clamping sub-hole (34) and the second clamping sub-hole (35) are in communication with each other, forming the second clamping hole (36) with an L-shaped cross section, and the second clamping block (31) and the second clamping hole (36) of the adjacent splicing piece (1) are clamped with each other.

5. A splice assembly as claimed in claim 2, wherein The second mounting part (22) is a double-layer structure.

6. A splice assembly as claimed in claim 2, wherein The partition part (2), the first mounting part (21), the second mounting part (22) and the splicing part (23) are integrally formed.

7. A wallboard characterised in that The wallboard comprises the splicing piece (1) and the wall body (4), the splicing piece (1) is fixedly installed on the left and right sides of the wall body (4), and the splicing pieces (1) on the left and right sides of the wall body (4) are oppositely arranged; the wall body (4) comprises a sandwich layer (42) and a decorative surface layer (41), and the sandwich layer (42) is provided with the decorative surface layer (41) on both sides. The first mounting part (21) of the splicing piece (1) is located between the sandwich layer (42) and the decorative surface layer (41), the second mounting part (22) of the splicing piece (1) is located between the sandwich layer (42) and the other decorative surface layer (41), the interface of the sandwich layer (42) is located in the mounting space (12), and two adjacent wall bodies (4) are spliced with each other through two mutually inverted splicing pieces (1).

8. A wall panel according to claim 7, wherein The sandwich layer (42) and the two decorative surface layers (41) are arranged in a staggered manner, the left and right sides of the wall body (4) form oppositely arranged stepped interfaces, and the wall body (4) has a central symmetry structure.

9. A wall panel according to claim 8, wherein, Further comprising a first fixing piece (44) and a second fixing piece (45), the end of the first fixing piece (44) sequentially penetrates one of the decorative surface layers (41), the first mounting part (21) and the sandwich layer (42); The end of the second fixing piece (45) sequentially penetrates the other decorative surface layer (41), the second mounting part (22) and the sandwich layer (42).

10. A wall panel according to claim 9, wherein, The sandwich layer (42) is a rock wool material, and the decorative surface layer (41) is a gypsum board.

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