Building plastering plate and tool

Abstract

The utility model relates to an appliance for building decoration engineering, and discloses a building plastering plate, which comprises a first connecting part and a second connecting part, and a splicing part is arranged between the first connecting part and / or the second connecting part, so that when a plurality of building plastering plates are spliced, the building plastering plate can be conveniently spliced. Two adjacent building plastering plates are spliced into a 90-degree, 180-degree or 270-degree structure through mutual clamping connection of the first connecting part of one building plastering plate and the second connecting part of the other building plastering plate, and a seamless tight structure is formed at the splicing position of the two building plastering plates; the utility model further discloses a building plastering tool which comprises at least two building plastering plates and fasteners, and every two adjacent building plastering plates are spliced through a first connecting part, a second connecting part and two fasteners. The plastering surfaces are perpendicular to each other and are suitable for plastering construction of internal and external corners of a building, so that the construction efficiency is effectively improved, the construction period is shortened, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to an appliance for building decoration engineering, in particular to a building plastering board and a tool. Background Art

[0002] Plastering is a traditional decorative project that uses mortar to apply to the walls, floors, ceilings, and surfaces of buildings. In some areas of my country, it is also called "whitewashing" or "painting".

[0003] Plastering engineering refers to the systematic construction process of applying plastering mortar on the surface of the base material, which has the function of protecting the base and increasing the beauty, and providing special functions for the building. Plastering engineering has two major functions: one is the protection function, which protects the wall from the erosion of wind, rain and snow, increases the wall's ability to resist moisture, weathering and heat insulation, and improves the durability and thermal performance of the wall; the other is the beautification function, which improves indoor sanitary conditions, purifies the air, beautifies the environment, and improves living comfort.

[0004] At present, plastering construction on the wall is usually carried out manually using a plastering board, but due to the small surface of the plastering board, the construction efficiency is not high. Utility Model Content

[0005] The utility model aims to provide a building plastering board to solve the problem of low construction efficiency caused by the small board surface of the existing plastering board.

[0006] In order to achieve the above-mentioned object, the utility model provides a building plastering board, which includes a board body, a first connecting part and a second connecting part, wherein the board body is a square board, and the front side of the board body is a plastering surface, and the first connecting part and the second connecting part are respectively arranged on both sides of the board body;

[0007] A direction parallel to the bottom edge of the plastered surface is defined as a first direction, and a direction perpendicular to the first direction and parallel to the plastered surface is defined as a second direction;

[0008] The first connecting portion includes a first connecting tooth and a second connecting tooth, and the first connecting tooth and the second connecting tooth are arranged at intervals along the second direction; the second connecting portion includes a third connecting tooth and a fourth connecting tooth, and the third connecting tooth and the fourth connecting tooth are arranged at intervals along the second direction;

[0009] In the first direction, the orthographic projection of the third connecting tooth is located on any one side of the orthographic projection of the first connecting tooth, and the orthographic projection of the fourth connecting tooth is located on any one side of the orthographic projection of the second connecting tooth;

[0010] The first connecting tooth, the second connecting tooth, the third connecting tooth and the fourth connecting tooth are all provided with connecting holes penetrating through two opposite surfaces thereof along the second direction; a splicing portion is provided between the first connecting tooth and the second connecting tooth and / or between the third connecting tooth and the fourth connecting tooth;

[0011] When multiple building plaster boards are spliced ​​together, two adjacent building plaster boards are clamped together through the first connecting part of one of the building plaster boards and the second connecting part of the other building plaster board to form a 90-degree, 180-degree or 270-degree structure, and a seamless tight structure is formed at the joint between the two.

[0012] Further, the top surface of the first connecting tooth is flush with the top surface of the plate body, and the bottom surface of the second connecting tooth is flush with the bottom surface of the plate body;

[0013] The distance between the top surface of the third connecting tooth and the top surface of the plate body in the second direction is equal to the size of the first connecting tooth in the second direction;

[0014] A distance between a bottom surface of the fourth connecting tooth and a bottom surface of the plate body in the second direction is equal to a size of the second connecting tooth in the second direction.

[0015] Furthermore, a first splicing portion is provided between the first connecting tooth and the second connecting tooth, and the first splicing portion includes a plurality of first splicing teeth spaced and evenly arranged along the second direction;

[0016] A second splicing portion is provided between the third connecting tooth and the fourth connecting tooth, and the second splicing portion includes a plurality of second splicing teeth spaced and evenly arranged along the second direction;

[0017] The first splicing teeth and the second splicing teeth cooperate with each other and are arranged alternately;

[0018] When the building plaster boards are spliced, the first splicing teeth of one of the two adjacent building plaster boards and the second splicing teeth of the other building plaster board are engaged with each other, so that a seamless and tight structure is formed at the splicing point of the two adjacent building plaster boards.

[0019] Further, it is defined that in the second direction, the first connecting tooth is located in the front, and the second connecting tooth is located in the rear;

[0020] In the second direction, the distance between the first splicing tooth and the first connecting tooth located at the front of the first splicing portion is equal to the size of the third connecting tooth in the second direction, and the distance between the first splicing tooth and the second connecting tooth located at the rear of the first splicing portion is equal to the size of the fourth connecting tooth in the second direction;

[0021] In the second direction, the distance between the second splicing tooth and the third connecting tooth at the front of the second splicing part is equal to the size of the first connecting tooth in the second direction, and the distance between the second splicing tooth and the fourth connecting tooth at the rear of the second splicing part is equal to the size of the second connecting tooth in the second direction.

[0022] Further, the outer edge shapes and sizes of the first connecting tooth, the second connecting tooth, the third connecting tooth, the fourth connecting tooth, the first splicing tooth and the second splicing tooth are the same; and in the second direction, the distances between the first connecting tooth and the first splicing tooth, between two adjacent first splicing teeth, between the second connecting tooth and the first splicing tooth, between the third connecting tooth and the second splicing tooth, between two adjacent second splicing teeth, and between the fourth connecting tooth and the second splicing tooth are equal, which are all the sizes of a first connecting tooth, the second connecting tooth, the third connecting tooth, the fourth connecting tooth, the first splicing tooth or the second splicing tooth in the second direction.

[0023] Furthermore, it also includes a handle, which is fixed on the back side of the plastered surface.

[0024] Furthermore, the plate body is a rectangular plate, and the first connecting tooth, the second connecting tooth, the third connecting tooth, the fourth connecting tooth, the first splicing tooth and the second splicing tooth are all cubes.

[0025] The utility model also provides a building plastering tool, which includes at least two of the above-mentioned building plastering boards and fasteners. Two adjacent building plastering boards are spliced ​​by a first connecting part, a second connecting part and two fasteners. One fastener is passed through the connecting hole of the first connecting tooth and the connecting hole of the third connecting tooth to connect the first connecting tooth and the third connecting tooth, and the other fastener is passed through the connecting hole of the second connecting tooth and the connecting hole of the fourth connecting tooth to connect the second connecting tooth and the fourth connecting tooth.

[0026] Furthermore, the top surfaces and bottom surfaces of two adjacent building plaster boards are flush.

[0027] Compared with the prior art, the building plastering board and tool provided by the utility model have the following beneficial effects:

[0028] The utility model provides a building plastering board, which is provided with a first connecting part and a second connecting part, and a splicing part is provided between the first connecting tooth and the second connecting tooth of the first connecting part and / or the third connecting tooth and the fourth connecting tooth of the second connecting part. Therefore, the utility model provides a building plastering board, which is spliced ​​by at least two of the building plastering boards. When splicing, two adjacent building plastering boards are mutually clamped by the first splicing part of one of the building plastering boards and the second splicing part of the other building plastering board, and then spliced ​​into a 180-degree or 90-degree structure, and a seamless tight structure is formed at the connection between the two, thereby The building plastering tool has a larger plastering surface that can be further expanded according to actual needs, and there is no gap between two adjacent building plastering boards, so as to prevent mortar from leaking from the joints and affecting the construction quality; in addition, in addition to the commonly used 180-degree splicing structure, the two adjacent building plastering boards in the building plastering tool can also be spliced ​​into a 90-degree or 270-degree structure. The two building plastering boards are perpendicular to each other, and the angle between their plastering surfaces is 90 degrees or 270 degrees. Therefore, it can be used for plastering work at the inner and outer corners of buildings, which is conducive to improving construction efficiency, shortening construction period, and effectively saving construction labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a building plastering board according to an embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the structure of two plastering boards of a building plastering tool in an embodiment of the utility model to be assembled into an angle of 180 degrees;

[0031] Figure 3 It is a schematic structural diagram of two plastering boards of a building plastering tool in an embodiment of the utility model to be assembled into an angle of 90 degrees;

[0032] Figure 4 The utility model is a schematic structural diagram of two plastering boards of a building plastering tool to be assembled into an angle of 270 degrees.

[0033] In the figure, 100, building plastering tool; 10, building plastering board; 20, fastener; 1, board body; 2, first connecting part; 21, first connecting tooth; 22, second connecting tooth; 3, first connecting part; 31, third connecting tooth; 32, fourth connecting tooth; 41, first splicing part; 411, first splicing tooth; 42, second splicing part; 421, second splicing tooth; 5, connecting hole; 6, handle. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] like Figure 1 As shown, a building plastering board 10 of an embodiment of the utility model comprises a board body 1, a first connecting portion 2 and a second connecting portion 3, wherein the board body 1 is a square board, and its front side is a plastering surface, and the first connecting portion 2 and the second connecting portion 3 are respectively arranged on both sides of the board body 1; a direction parallel to the bottom edge of the plastering surface is defined as a first direction X, and a direction perpendicular to the first direction and parallel to the plastering surface is defined as a second direction Y; the first connecting portion 2 comprises a first connecting tooth 21 and a second connecting tooth 22, and the first connecting tooth 21 and the second connecting tooth 22 are arranged at intervals along the second direction Y; the second connecting portion 3 comprises a third connecting tooth 31 and a fourth connecting tooth 32, and the third connecting tooth 31 and the fourth connecting tooth 32 are arranged at intervals along the second direction Y; in the first direction X, the third connecting tooth 31 The orthographic projection is located on any one side of the orthographic projection of the first connecting tooth 21, and the orthographic projection of the fourth connecting tooth 32 is located on any one side of the orthographic projection of the second connecting tooth 22; the first connecting tooth 21, the second connecting tooth 22, the third connecting tooth 31 and the fourth connecting tooth 32 are all provided with connecting holes 5 that penetrate their two opposite surfaces along the second direction; a splicing portion is provided between the first connecting tooth 21 and the second connecting tooth 22 and / or between the third connecting tooth 31 and the fourth connecting tooth 32; when multiple building plaster boards 10 are spliced, two adjacent building plaster boards are connected to each other through the first connecting portion 2 of one of the building plaster boards and the second connecting portion 3 of the other building plaster board, and then spliced ​​into a 90-degree, 180-degree or 270-degree structure, and a seamless tight structure is formed at the splicing of the two.

[0036] Based on the above technical scheme, the first connecting tooth 21, the second connecting tooth 22, the third connecting tooth 31 and the fourth connecting tooth 32 are all provided with connecting holes 5 that penetrate through the two relative surfaces thereof along the second direction, providing corresponding settings for realizing the connection between two building plaster boards, and a splicing portion is provided between the first connecting tooth 21 and the second connecting tooth 22 and / or between the third connecting tooth 31 and the fourth connecting tooth 32. Through the combination of the splicing portion and the first connecting portion 2 and the second connecting portion 3, when multiple building plaster boards 10 are spliced, two adjacent building plaster boards are mutually engaged through the first connecting portion 2 of one of the building plaster boards and the second connecting portion 3 of the other building plaster board, and then spliced ​​into a 90-degree, 180-degree or 270-degree structure, and a seamless tight structure is formed at the splicing of the two, that is, a larger plastering surface can be formed by splicing and combining multiple building plaster boards 10, and the seamless tight structure at the splicing prevents the mortar from leaking from the splicing, which is conducive to the progress of construction, greatly improves the construction efficiency, and effectively shortens the construction period.

[0037] Furthermore, if Figure 1As shown, in order to improve the splicing efficiency of the building plaster board, the top surface of the first connecting tooth 21 is flush with the top surface of the board body 1, and the bottom surface of the second connecting tooth 22 is flush with the bottom surface of the board body 1, so that when the first connecting part 2 and the second connecting part 3 are connected and fixed, the connection work can be completed on the side of the first connecting part 2, and it is convenient to set the splicing part between the first connecting tooth 21 and the second connecting tooth 22; the distance between the top surface of the third connecting tooth 31 and the top surface of the board body 1 in the second direction Y is equal to the size of the first connecting tooth 21 in the second direction Y; the distance between the bottom surface of the fourth connecting tooth 32 and the bottom surface of the board body 1 in the second direction Y is equal to the size of the second connecting tooth 22 in the second direction Y, so that when splicing the building plaster boards, the second connecting part 2 of one of the building plaster boards 10 can be inserted between the first connecting tooth 21 and the second connecting tooth 22, saving the time for splicing and positioning.

[0038] Furthermore, if Figure 1 As shown, in order to achieve a seamless tight structure at the connection of two adjacent building plaster boards during splicing, a first splicing portion 41 is provided between the first connecting tooth 21 and the second connecting tooth 22, and the first splicing portion 41 includes a plurality of first splicing teeth 411 spaced and evenly arranged along the second direction; a second splicing portion 42 is provided between the third connecting tooth 31 and the fourth connecting tooth 32, and the second splicing portion 42 includes a plurality of second splicing teeth 421 spaced and evenly arranged along the second direction; the first splicing teeth 411 and the second splicing teeth 421 cooperate with each other and are staggered; when the building plaster boards 10 are spliced, the first splicing teeth 411 of one building plaster board 10 and the second splicing teeth 421 of the other building plaster board 10 are engaged with each other, so that a seamless tight structure is formed at the connection of the two adjacent building plaster boards 10.

[0039] Furthermore, if Figure 1As shown, in order to make the first connecting tooth 21 and the first splicing tooth 411, the second connecting tooth 22 and the first splicing tooth 411, the third connecting tooth 31 and the second splicing tooth 421, and the fourth connecting tooth 32 and the second splicing tooth 421 all arranged at intervals to achieve a better splicing effect, it is defined that in the second direction Y, the first connecting tooth 21 is located in the front and the second connecting tooth 22 is located in the rear; in the second direction Y, the spacing between the first splicing tooth 411 located at the front of the first splicing part 41 and the first connecting tooth 21 is equal to the spacing between the third connecting tooth 31 and the first splicing tooth 411. The dimensions in the second direction Y are as follows: the spacing between the first splicing tooth 411 located at the rear end of the first splicing part 41 and the second connecting tooth 22 is equal to the dimension of the fourth connecting tooth 32 in the second direction Y; in the second direction Y, the spacing between the second splicing tooth 421 located at the front end of the second splicing part 42 and the third connecting tooth 31 is equal to the dimension of the first connecting tooth 21 in the second direction Y, and the spacing between the second splicing tooth 421 located at the rear end of the second splicing part 42 and the fourth connecting tooth 32 is equal to the dimension of the second connecting tooth 22 in the second direction Y.

[0040] Furthermore, if Figure 1 As shown, in order to facilitate processing and production and to ensure that when the building plaster boards 10 are connected, a seamless tight structure is formed at the connection between two adjacent building plaster boards 10, the outer edge shapes and sizes of the first connecting teeth 21, the second connecting teeth 22, the third connecting teeth 31, the fourth connecting teeth 32, the first splicing teeth 411 and the second splicing teeth 421 are the same; and in the second direction Y, the distances between the first connecting tooth 21 and the first splicing tooth 411, between two adjacent first splicing teeth 411, between the second connecting tooth 22 and the first splicing tooth 411, between the third connecting tooth 31 and the second splicing tooth 421, between two adjacent second splicing teeth 421, and between the fourth connecting tooth 32 and the second splicing tooth 421 are equal, which are all the dimensions of a first connecting tooth 21, the second connecting tooth 22, the third connecting tooth 31, the fourth connecting tooth 32, the first splicing tooth 411 or the second splicing tooth 421 in the second direction Y.

[0041] Furthermore, if Figure 1 As shown, for a user to use the building plaster board 10, the building plaster board 10 also includes a handle 6, and the handle 6 is fixedly arranged on the back side of the plaster surface.

[0042] Furthermore, if Figure 1 As shown, the plate body 1 is a rectangular plate, and the first connecting tooth 21, the second connecting tooth 22, the third connecting tooth 31, the fourth connecting tooth 32, the first splicing tooth 411 and the second splicing tooth 421 are all cubes, and are all set as conventional geometric bodies to facilitate processing, production and construction, and facilitate promotion and use.

[0043] like Figure 2 to Figure 4As shown, a building plastering tool 100 of an embodiment of the utility model comprises at least two of the above-mentioned building plastering boards 10 and fasteners 20, and two adjacent building plastering boards 10 are spliced ​​by a first connecting part 2, a second connecting part 3 and two fasteners 20, one fastener 20 is passed through the connecting hole of the first connecting tooth 21 and the connecting hole of the third connecting tooth 31 to connect the first connecting tooth 21 and the third connecting tooth 31, and the other fastener 20 is passed through the connecting hole of the second connecting tooth 22 and the connecting hole of the fourth connecting tooth 32 to connect the second connecting tooth 22 and the fourth connecting tooth 32, so as to realize the connection and fixation between the two adjacent building plastering boards to prevent the building plastering boards from separating from each other during use.

[0044] Preferably, the building plastering tool 100 in this embodiment includes the two above-mentioned building plastering boards 10 and two fasteners 20, so as to form a building plastering tool with a larger plastering surface and an overall weight that is easy to use, which is more suitable for daily construction conditions; the fastener 20 is a pin, which is passed through the connecting hole 5 and locked by friction, so as to facilitate free disassembly.

[0045] Furthermore, if Figure 2 to Figure 4 As shown, the top and bottom surfaces of two adjacent building plastering boards 10 are flush to form a regular plastering surface, thereby ensuring the engineering quality of the plastering construction, and the center of gravity of the spliced ​​building plastering tool is centered, which is convenient for users to hold and use.

[0046] The working process of the utility model is:

[0047] (1) Building plastering tools suitable for building flat surface plastering:

[0048] like Figure 2 As shown, two building plastering boards are parallel, and the angle between their plastering surfaces is 180 degrees. The second connecting portion 3 of one of the building plastering boards is inserted between the first connecting tooth 21 and the second connecting tooth 22 of the other building plastering board, and the second splicing tooth 421 of the building plastering board is engaged with the first splicing tooth 411 of the other building plastering board to form a 180-degree structure. A fastener 20 is inserted through the connecting hole of the first connecting tooth 21 and the connecting hole of the third connecting tooth 31 to connect the first connecting tooth 21 and the third connecting tooth 31, and another fastener 20 is inserted through the connecting hole of the second connecting tooth 22 and the connecting hole of the fourth connecting tooth 32 to connect the second connecting tooth 22 and the fourth connecting tooth 32, thereby completing the splicing and connection fixation of the two building plastering boards.

[0049] (2) Building plastering tools suitable for building exterior corner plastering:

[0050] like Figure 3As shown, the two building plaster boards are perpendicular to each other, and the angle between their plaster surfaces is 90 degrees. The second connecting portion 3 of one of the building plaster boards is inserted between the first connecting tooth 21 and the second connecting tooth 22 of the other building plaster board, and the second splicing tooth 421 of the building plaster board is engaged with the first splicing tooth 411 of the other building plaster board to form a 180-degree structure. A fastener 20 is inserted through the connecting hole of the first connecting tooth 21 and the connecting hole of the third connecting tooth 31 to connect the first connecting tooth 21 and the third connecting tooth 31, and another fastener 20 is inserted through the connecting hole of the second connecting tooth 22 and the connecting hole of the fourth connecting tooth 32 to connect the second connecting tooth 22 and the fourth connecting tooth 32, thereby completing the splicing and connection fixation of the two building plaster boards.

[0051] (3) Building plastering tools suitable for building internal corner plastering:

[0052] like Figure 4 As shown, the two building plastering boards are perpendicular to each other, and the angle between their plastering surfaces is 270 degrees. The second connecting portion 3 of one of the building plastering boards is inserted between the first connecting tooth 21 and the second connecting tooth 22 of the other building plastering board, and the second splicing tooth 421 of the building plastering board is engaged with the first splicing tooth 411 of the other building plastering board to form a 180-degree structure. A fastener 20 is inserted through the connecting hole of the first connecting tooth 21 and the connecting hole of the third connecting tooth 31 to connect the first connecting tooth 21 and the third connecting tooth 31, and another fastener 20 is inserted through the connecting hole of the second connecting tooth 22 and the connecting hole of the fourth connecting tooth 32 to connect the second connecting tooth 22 and the fourth connecting tooth 32, thereby completing the splicing and connection fixation of the two building plastering boards 10.

[0053] In summary, the embodiment of the utility model provides a building plaster board and tool, which connects and fixes two adjacent building plaster boards 10 in the building plaster tool 100 through the first connecting part 2 and the second connecting part 3, and then cooperates and staggers the first splicing teeth 411 and the second splicing teeth 421 to form a seamless tight structure at the joint of the two adjacent building plaster boards 10. Since the board body 1 of the building plaster board 10 is a rectangular plate, the first connecting teeth 21, the second connecting teeth 22, the third connecting teeth 31, the fourth connecting teeth 32, the first splicing teeth 411 and the second splicing teeth 421 are all cubes, which can limit the relative rotation between the building plaster boards 10. Therefore, during use, the two adjacent building plaster boards maintain a 180-degree or 90-degree structure without the need for additional fixing devices.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A building plaster board, characterized in that: It comprises a plate body, a first connecting part and a second connecting part, wherein the plate body is a square plate, the front side of which is a plastered surface, and the first connecting part and the second connecting part are respectively arranged on both sides of the plate body; Define a direction parallel to the bottom edge of the plastered surface as a first direction, and a direction perpendicular to the first direction and parallel to the plastered surface as a second direction; The first connecting portion includes a first connecting tooth and a second connecting tooth, and the first connecting tooth and the second connecting tooth are arranged at intervals along the second direction; the second connecting portion includes a third connecting tooth and a fourth connecting tooth, and the third connecting tooth and the fourth connecting tooth are arranged at intervals along the second direction; In the first direction, the orthographic projection of the third connecting tooth is located on any one side of the orthographic projection of the first connecting tooth, and the orthographic projection of the fourth connecting tooth is located on any one side of the orthographic projection of the second connecting tooth; The first connecting tooth, the second connecting tooth, the third connecting tooth and the fourth connecting tooth are all provided with connecting holes penetrating through two opposite surfaces thereof along the second direction; a splicing portion is provided between the first connecting tooth and the second connecting tooth and / or between the third connecting tooth and the fourth connecting tooth; When multiple building plaster boards are spliced ​​together, two adjacent building plaster boards are clamped together through the first connecting part of one of the building plaster boards and the second connecting part of the other building plaster board to form a 90-degree, 180-degree or 270-degree structure, and a seamless tight structure is formed at the joint between the two.

2. The building plaster board according to claim 1, characterized in that: The top surface of the first connecting tooth is flush with the top surface of the plate body, and the bottom surface of the second connecting tooth is flush with the bottom surface of the plate body; The distance between the top surface of the third connecting tooth and the top surface of the plate body in the second direction is equal to the size of the first connecting tooth in the second direction; A distance between a bottom surface of the fourth connecting tooth and a bottom surface of the plate body in the second direction is equal to a size of the second connecting tooth in the second direction.

3. The building plaster board according to claim 1 or 2, characterized in that: A first splicing portion is provided between the first connecting tooth and the second connecting tooth, and the first splicing portion includes a plurality of first splicing teeth spaced and evenly arranged along the second direction; A second splicing portion is provided between the third connecting tooth and the fourth connecting tooth, and the second splicing portion includes a plurality of second splicing teeth spaced and evenly arranged along the second direction; The first splicing teeth and the second splicing teeth cooperate with each other and are arranged alternately; When the building plaster boards are spliced, the first splicing teeth of one of the two adjacent building plaster boards and the second splicing teeth of the other building plaster board are engaged with each other, so that a seamless and tight structure is formed at the splicing point of the two adjacent building plaster boards.

4. The building plaster board according to claim 3, characterized in that: It is defined that in the second direction, the first connecting tooth is located at the front, and the second connecting tooth is located at the rear; In the second direction, the distance between the first splicing tooth and the first connecting tooth located at the front of the first splicing portion is equal to the size of the third connecting tooth in the second direction, and the distance between the first splicing tooth and the second connecting tooth located at the rear of the first splicing portion is equal to the size of the fourth connecting tooth in the second direction; In the second direction, the distance between the second splicing tooth and the third connecting tooth at the front of the second splicing part is equal to the size of the first connecting tooth in the second direction, and the distance between the second splicing tooth and the fourth connecting tooth at the rear of the second splicing part is equal to the size of the second connecting tooth in the second direction.

5. The building plaster board according to claim 4, characterized in that: The outer edge shapes and sizes of the first connecting tooth, the second connecting tooth, the third connecting tooth, the fourth connecting tooth, the first splicing tooth and the second splicing tooth are the same; and in the second direction, the distances between the first connecting tooth and the first splicing tooth, between two adjacent first splicing teeth, between the second connecting tooth and the first splicing tooth, between the third connecting tooth and the second splicing tooth, between two adjacent second splicing teeth, and between the fourth connecting tooth and the second splicing tooth are equal, which are all the sizes of a first connecting tooth, the second connecting tooth, the third connecting tooth, the fourth connecting tooth, the first splicing tooth or the second splicing tooth in the second direction.

6. The building plaster board according to claim 1, characterized in that: It also includes a handle, which is fixed on the back side of the plastered surface.

7. The building plaster board according to claim 1, characterized in that: The plate body is a rectangular plate, and the first connecting tooth, the second connecting tooth, the third connecting tooth, the fourth connecting tooth, the first splicing tooth and the second splicing tooth are all cubes.

8. A building plastering tool, characterized in that: It comprises at least two building plaster boards and fasteners as described in claim 1, and two adjacent building plaster boards are spliced ​​by a first connecting part, a second connecting part and two fasteners, one fastener is passed through the connecting hole of the first connecting tooth and the connecting hole of the third connecting tooth to connect the first connecting tooth and the third connecting tooth, and the other fastener is passed through the connecting hole of the second connecting tooth and the connecting hole of the fourth connecting tooth to connect the second connecting tooth and the fourth connecting tooth.

9. The building plastering tool according to claim 8, characterized in that: The top and bottom surfaces of two adjacent building plaster boards are flush.

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