Longitudinal lap joint structure of waterproof and drainage board

Abstract

The utility model provides a longitudinal lap joint structure for waterproof and drainage boards, and belongs to the field of waterproof boards. The spliced drainage plate comprises an upper spliced drainage plate body and a lower spliced drainage plate body, the upper spliced drainage plate body is provided with a plurality of upper spliced columns, the upper spliced columns are internally provided with spliced spaces, the lower spliced drainage plate body is internally provided with lower spliced columns corresponding to the upper spliced columns, and the lower spliced columns have deformability and can extend into the upper spliced columns. The splicing structure has the beneficial effects that the upper splicing drainage plates and the lower splicing drainage plates are spliced in an overlapped mode, the lower splicing plungers are plugged into the corresponding upper splicing columns to be fixed, the size of the lower splicing columns is larger than that of the upper splicing columns, the lower splicing plungers can deform when being plugged into the upper splicing columns, and therefore the lower splicing columns can be fixed; and the deformation generates extrusion force on the splicing space to generate friction force, so that the firmness degree is further improved.

Description

Technical Field

[0001] The utility model belongs to the field of waterproof boards, and in particular relates to a longitudinal overlapping structure of waterproof and drainage boards. Background Art

[0002] Drain boards and waterproof structures are the most commonly used drainage systems for multi-story parking garages and other building structures. Drain boards are typically used on green roofs. Existing drain boards consist of solid or cup-shaped protrusions formed on a polymer sheet, with the mouth of the cup facing the opposite direction of the protrusion, generally upward. The spaces between the protrusions form drainage channels. However, to ensure waterproofing and drainage performance, drain boards are typically long and wide, making them difficult to transport and install, and prone to bending and misalignment during transportation and installation.

[0003] For example, a Chinese invention patent discloses a conveniently assembled plastic protective drain board [application number CN202121795000.7], which includes a first drain board body and a second drain board body. A second fixing strip and a first drain strip are fixedly mounted on the side of the first drain board body near the second drain board body, for connection and drainage. A clamping strip and a second drain strip are fixedly mounted on the side of the second drain board body near the first drain board body. A first drainage groove is provided on the upper end of the second fixing strip, near the first drain board body, and several limiting strips are provided on the upper end of the second fixing strip, away from the first drain board body. However, this technical solution still leaves a gap between the two drain boards, making it prone to water leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a longitudinal overlap structure of a drainage board in order to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A longitudinal overlap structure of a drainage board includes an upper splicing drainage board and a lower splicing drainage board. The upper splicing drainage board is provided with a plurality of upper splicing columns, each of which has a splicing space. The lower splicing drainage board is provided with lower splicing columns corresponding to the upper splicing columns, and the lower splicing columns have deformation ability and can extend into the upper splicing columns.

[0007] In the above-mentioned longitudinal overlap structure of drainage boards, the width of the lower end of the splicing space is smaller than the width of the upper end thereof, and the upper end of the lower splicing column is adapted to the width of the lower end of the splicing space.

[0008] In the aforementioned longitudinal overlap structure of drainage boards, the width of the upper end of the lower splicing column is smaller than the width of the lower end thereof.

[0009] In the aforementioned longitudinal overlapping structure of drainage boards, a deformation structure for providing a deformation space is further provided on the lower splicing column.

[0010] In the aforementioned longitudinal overlap structure of drainage boards, the deformation structure includes a plurality of deformation space strips that are recessed downward in the splicing columns.

[0011] In the above-mentioned longitudinal overlap structure of drainage board, the upper splicing columns on the upper splicing drainage board are arranged in an array, each row is provided with a plurality of upper splicing columns, and the upper splicing columns on two adjacent rows are staggered in the transverse direction.

[0012] In the above-mentioned longitudinal overlapping structure of drainage boards, the lower spliced drainage board is further provided with an adhesive surface, and the adhesive surface may be provided with an adhesive layer that can be adhered to the upper spliced drainage board.

[0013] In the aforementioned longitudinal overlap structure of drainage boards, the adhesive surface is located between two adjacent rows of lower splicing columns, and both ends of the adhesive surface are respectively located on both sides of the lower splicing drainage boards.

[0014] In the above-mentioned longitudinal overlap structure of drainage boards, the lower spliced drainage boards are further provided with a plurality of lower positioning columns, and the upper spliced drainage boards are provided with a plurality of hollow upper positioning columns.

[0015] Compared with the existing technology, the advantages of this utility model are:

[0016] 1. The upper and lower splicing drainage boards are superimposed and spliced together, and the lower splicing columns are inserted into the corresponding upper splicing columns for fixation. The volume of the lower splicing columns should be larger than that of the upper splicing columns. When the lower splicing columns are inserted into the upper splicing columns, they will deform. The deformation generates an extrusion force on the splicing space to generate friction, which is used to further increase the firmness.

[0017] 2. The splicing space is in an inverted T-shape. When the lower splicing column is squeezed into the splicing space, the lower port will be deformed and slightly released. If you want to pull the lower splicing column out of the splicing space, you must squeeze the lower splicing column before you can pull it out, thus further increasing the firmness.

[0018] 3. The lower splicing column will gradually shrink, gradually making the deformation space bar smaller and gradually increasing the elastic force of the lower splicing column returning to its original position. The direction of the elastic force generated always points to the inner wall of the deformed structure, thereby increasing the friction between the two as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the upper spliced drainage board;

[0020] Figure 2 It is a schematic diagram of the lower spliced drainage board;

[0021] Figure 3 This is a schematic diagram corresponding to the upper spliced drainage board and the lower spliced drainage board.

[0022] In the figure: upper splicing drainage board 10, lower splicing drainage board 11, upper splicing column 12, splicing space 13, lower splicing column 14, deformation structure 15, deformation space strip 16, adhesion surface 17, lower positioning column 18, upper positioning column. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] The utility model provides a longitudinal overlap structure of a drainage board, combined with Figure 1-3 As shown, it includes an upper splicing drainage board 10 and a lower splicing drainage board 11. The upper splicing drainage board 10 is provided with a plurality of upper splicing columns 12. The upper splicing columns 12 are provided with splicing spaces 13. The lower splicing drainage board 11 is provided with lower splicing columns 14 corresponding to the upper splicing columns 12. The lower splicing columns 14 have deformation ability and can extend into the upper splicing columns 12.

[0025] In this embodiment, the drainage board 10 is divided into multiple pieces for laying and installation, which is carried out by superimposing and splicing the upper splicing drainage board 10 and the lower splicing drainage board 11, and fixing them by inserting the lower splicing column 14 into the corresponding upper splicing column 12. The volume of the lower splicing column 14 is larger than the volume of the upper splicing column 12. When the lower splicing column 14 is inserted into the upper splicing column 12, it will deform. The deformation generates an extrusion force on the splicing space 13 to generate friction, which is used to further increase the firmness.

[0026] The width of the lower end of the splicing space 13 is smaller than the width of the upper end thereof, and the upper end of the lower splicing column 14 is adapted to the width of the lower end of the splicing space 13 .

[0027] In this embodiment, the splicing space is in an inverted T-shape. When the lower splicing column 14 is squeezed into the lower end of the splicing space 13, it will be deformed and slightly released. If you want to pull the lower splicing column 14 out of the splicing space 13, you must squeeze the lower splicing column 14 before you can pull it out, thereby further increasing the firmness.

[0028] The width of the upper end of the lower splicing column 14 is smaller than the width of the lower end thereof.

[0029] In this embodiment, the upper end of the lower splicing column 14 is small to facilitate alignment and insertion into the upper splicing column 12. When inserted, the lower splicing column 14 gradually becomes larger and is squeezed by the splicing space 13 to gradually increase the firmness between the two.

[0030] The lower splicing column 14 is further provided with a deformation structure 15 for providing a deformation space.

[0031] In this embodiment, if no deformation space is provided, it is easy to cause difficulty in inserting the lower splicing column 14, and it is also easy to cause severe deformation, resulting in complete deformation and loss of rebound function, thereby losing or reducing the friction between the deformation space.

[0032] The deformable structure includes a plurality of deformable space strips 16 that are recessed into the splicing columns 14 facing downward.

[0033] In this embodiment, during the deformation process, the lower splicing column 14 will gradually shrink, gradually making the deformation space bar 16 smaller and gradually increasing the elastic force of the lower splicing column 14 returning to its original position. The direction of the generated elastic force always points to the inner wall of the deformable structure 15.

[0034] The plurality of upper splicing columns 12 on the upper splicing drainage board 10 are arranged in an array, with a plurality of upper splicing columns 12 placed in each row, and the upper splicing columns 12 on two adjacent rows are staggered in the transverse direction.

[0035] In this embodiment, viewed from the width direction of the drainage board, a fixed point is set at equal intervals, and the force is evenly distributed from the perspective of force distribution. No part is too strong or weak to cause the upper and lower drainage boards to separate easily.

[0036] The lower spliced drainage board 11 is further provided with an adhesive surface 17 , and an adhesive layer can be provided on the adhesive surface 17 to be adhered to the upper spliced drainage board 10 .

[0037] In this embodiment, the adhesive layer further increases the firmness between the upper and lower drainage boards.

[0038] The adhesive surface 17 is located between two adjacent rows of lower splicing columns 14 , and two ends of the adhesive surface 17 are respectively located on both sides of the lower splicing drainage board 11 .

[0039] In this embodiment, the adhesive surface 17 covers the entire drain board when viewed from the width direction of the drain board, thereby increasing the firmness as much as possible.

[0040] The lower spliced drainage board 11 is further provided with a plurality of lower positioning posts 18 , and the upper spliced drainage board 10 is provided with a plurality of hollow upper positioning posts.

[0041] In this embodiment, during the splicing process, positioning is first performed through the cooperation of the lower positioning column 18 and the upper positioning column. After positioning, it is only necessary to continue pressing down the splicing drainage board 10 to complete the splicing.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0043] Although this article uses the upper splicing drainage board 10, lower splicing drainage board 11, upper splicing column 12, splicing space 13, lower splicing column 14, deformation structure 15, deformation space strip 16, adhesion surface 17, lower positioning column 18, upper positioning column, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restriction is contrary to the spirit of the present invention.

Claims

1. A longitudinal overlap structure of drainage boards, comprising an upper spliced drainage board (10) and a lower spliced drainage board (11), characterized in that: The upper splicing drainage board (10) is provided with a plurality of upper splicing columns (12), and a splicing space (13) is provided in the upper splicing columns (12). The lower splicing drainage board (11) is provided with a lower splicing column (14) corresponding to the upper splicing column (12), and the lower splicing column (14) has deformation capability and can extend into the upper splicing column (12).

2. The longitudinal overlap structure of the drainage board according to claim 1, characterized in that: The width of the lower end of the splicing space (13) is smaller than the width of the upper end thereof, and the upper end of the lower splicing column (14) is adapted to the width of the lower end of the splicing space (13).

3. The longitudinal overlap structure of the drainage board according to claim 2, characterized in that: The width of the upper end of the lower splicing column (14) is smaller than the width of the lower end thereof.

4. The longitudinal overlap structure of the drainage board according to claim 2, characterized in that: The lower splicing column (14) is also provided with a deformation structure (15) for providing a deformation space.

5. The longitudinal overlap structure of the drainage board according to claim 4, characterized in that: The deformation structure comprises a plurality of deformation space strips (16) recessed in the downward splicing columns (14).

6. The longitudinal overlap structure of the drainage board according to claim 1, characterized in that: The plurality of upper splicing columns (12) on the upper splicing drainage board (10) are arranged in an array, with a plurality of upper splicing columns (12) placed in each row, and the upper splicing columns (12) on two adjacent rows are staggered in the transverse direction.

7. The longitudinal overlap structure of the drainage board according to claim 6, characterized in that: The lower spliced drainage board (11) is further provided with an adhesive surface (17), and an adhesive layer can be provided on the adhesive surface (17) to be adhered to the upper spliced drainage board (10).

8. The longitudinal overlap structure of the drainage board according to claim 7, characterized in that: The adhesive surface (17) is located between two adjacent rows of lower splicing columns (14), and the two ends of the adhesive surface (17) are respectively located on the two side edges of the lower splicing drainage board (11).

9. The longitudinal overlap structure of the drainage board according to claim 1, characterized in that: The lower spliced drainage board (11) is also provided with a plurality of lower positioning columns (18), and the upper spliced drainage board (10) is provided with a plurality of hollow upper positioning columns.

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