CN213929087U

CN213929087U - Self-tapping screw for building decoration

Info

Publication number: CN213929087U
Application number: CN202021630329.3U
Authority: CN
Inventors: 张春辉
Original assignee: Dongguan Gemei Zhizhai Building Decoration Co Ltd
Current assignee: Dongguan Gemei Zhizhai Building Decoration Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-08-10
Anticipated expiration: 2030-08-07

Abstract

The application discloses self-tapping screw for building decoration. The self-tapping screw is provided with a first external thread at one end of the top; the tail end of the self-tapping screw is provided with a wrenching structure, and the part close to the tail end is provided with a second external thread; and the thread directions of the first external thread and the second external thread are opposite. When the self-tapping screw is used for laying floor tiles, the self-tapping screw and a matched nut structure assembly are assembled into a structure assembly support, the floor tiles are supported by the structure assembly support to be laid and leveled, and then fillers are filled in the self-tapping screw to finish the laying of the floor tiles; the floor tile laying method based on the self-tapping screws can be leveled only by simply rotating the self-tapping screws, laying quality and efficiency can be better guaranteed, the stability of combination of the floor tiles and the ground is improved, technical dependence on constructors is reduced, and large-scale application and standardized operation are facilitated.

Description

Self-tapping screw for building decoration

Technical Field

The application relates to the field of auxiliary devices for house decoration, in particular to a self-tapping screw for building decoration.

Background

The floor tile is a decorative material widely used for the ground, and has various specifications and materials; has the advantages of hard texture, pressure resistance, wear resistance, moisture resistance, beautiful appearance and the like; it is widely used for the ground and floor of public buildings and civil buildings. The floor tile is used as a ground material laid in a large area, and indoor environments with different styles can be created by utilizing the shape, the pattern, the color and the texture of the floor tile. Therefore, flooring tiles are one of the most important jobs in the finishing process.

At present, two methods of paving floor tiles are generally adopted in decoration work, namely wet paving and dry paving. Wherein, the construction price of the wet pavement is lower; however, foaming, hollowing, poor overall flatness after application, and the like are likely to occur, and the quality of use and the life of the floor tile are affected. The problems of bubbling and hollowing of wet paving can be effectively avoided by dry paving; however, dry paving is troublesome, requires a higher technical content, and has a larger construction thickness and higher construction cost. In addition, after the floor tiles are laid on cement mortar in the traditional wet paving mode and the traditional dry paving mode, the floor tiles are required to be continuously beaten and leveled by a small hammer, and the leveling mode has the defects that firstly, the floor tiles are easy to loosen and move, and the leveling quality is influenced; secondly, cement mortar is used during paving, and is not easy to move, adjust and level during paving; in addition, the cement mortar is dry during paving, so that the cement mortar is poor in adhesion with the plate bricks and is easy to loosen and separate in the future.

In general, no matter wet paving or dry paving, constructors are required to have certain technical content, the requirement on the constructors is high, and the paving quality depends on the technical level of the constructors seriously; among different constructors, the integrity and consistency of the laying quality are difficult to ensure.

Disclosure of Invention

It is an object of the present application to provide an improved self-tapping screw for use in building finishing.

The following technical scheme is adopted in the application:

the application discloses a self-tapping screw for building decoration, wherein one end of the top of the self-tapping screw is provided with a first external thread; the tail end of the self-tapping screw is provided with a wrenching structure, and the part close to the tail end is provided with a second external thread; and the thread directions of the first external thread and the second external thread are opposite.

The self-tapping screw is used for paving floor tiles, and is firstly driven into a floor, and then a matched nut structural component is installed on a second thread at the tail end of the self-tapping screw to form a structural component support; the four sets of structural component supports respectively support four corners of the floor tiles so as to support the floor tiles; when the floor tile is laid, the structural component supports are fully covered with the floor to be laid, the interval of each structural component support depends on the size of the floor tile, and the floor tile is not particularly limited; leveling the installation planes of the nut structure components on all the structure component brackets, and then paving floor tiles; the method for laying the floor tiles comprises the steps of after 1-2 rows or columns of floor tiles are laid, spacing at least 1 vacant site of each floor tile, leveling the laid floor tiles after the floor tiles are laid, and finely adjusting by rotating self-tapping screws to level the laid floor tiles; after the floor tiles are laid and leveled, filling materials into gaps between the floor tiles and the floor through the spaced vacant positions; and finally, laying, leveling and filling the floor tiles in the spaced vacant positions to finish the operation of laying the floor tiles.

Wherein, the geometric center of the nut structure component is provided with a screw hole, and the internal thread of the screw hole is matched with the second external thread at the tail part of the self-tapping screw. In the present application, the screw hole is a through hole penetrating the nut structural component, so that the self-tapping screw can be rotated by the screwing structure of the self-tapping screw after the nut structural component is mounted on the self-tapping screw. In one implementation of the present application, the geometric center of the nut structure assembly is a raised structure, and the periphery of the geometric center has installation planes of floor tiles disposed on the same horizontal plane. The filler is foaming glue, foaming cement or self-leveling slurry.

Adopt the self-tapping screw of this application to carry out ground plate brick and lay, cooperate corresponding nut structure subassembly, can be simple, convenient make level, compare in traditional wet shop with spread futilely, based on self-tapping screw's ground plate brick method of laying of this application, whole ground plate brick laying process technical requirement is lower, easily standardized operation, quality and efficiency that guarantee ground plate brick that can be better was laid. It can be understood that, for the traditional paving and pasting mode, when the floor tiles are paved, constructors need to repeatedly scrape cement and continuously beat and level the floor tiles by using small hammers, and the paving and pasting technical requirements of the constructors are high in practice so as to ensure that the floor tiles are finally paved and leveled; and also affects the efficiency of the floor tile laying. And adopt the self-tapping screw of this application to carry out floor tile and spread and paste, only need adjust self-tapping screw can very conveniently and audio-visually carry out floor tile and make level and fix.

It should be noted that, the application is creative and all designs the helicitic texture at self-tapping screw's both ends to design the screw thread at both ends for opposite screw thread direction respectively, when floor tile was laid like this, just can realize moving in opposite directions or dorsad of nut structure subassembly and floor through rotatory self-tapping screw, play the effect of adjustment floor tile and floor's clearance and height, thereby can be convenient make level. It can be understood that in principle, the height of the floor tiles can be adjusted by screwing the tapping screws into the floor or screwing the tapping screws out of the floor, so that the leveling effect is achieved, and only one end of the floor tiles moves in the mode; the self-tapping screw with opposite thread directions at two ends is creatively designed, so that when the self-tapping screw is rotated, the two ends are moved relatively together, the fine adjustment efficiency and the fine adjustment range can be improved, and the leveling is convenient. It can be understood that the self-tapping screw or the structural component bracket formed by the self-tapping screw and the nut structural component can also be used for paving wall tiles; and, the same effect of floor tile laying is also had, for example simple structure easily installs, conveniently seeks the leveling etc..

Preferably, the top of the self-tapping screw of the present application is of a sharp configuration.

It should be noted that, the top of the self-tapping screw of the present application may be a sharp structure or a flat structure; the sharp structure can be convenient for driving the screw into the floor.

Preferably, the screwing structure of the self-tapping screw is a straight groove, a cross groove H shape, a cross groove Z shape, a cross groove F shape, a square groove, a composite groove, an internal spline, an internal hexagonal flower shape, an internal triangle, an internal hexagonal, an internal 12-degree angle, a six-blade groove or a high-torque cross groove.

Preferably, the column between the first external thread and the second external thread of the tapping screw is a flat column or a polygonal column.

It should be noted that, when the tapping screw is rotated, the screwing is generally performed by the wrenching structure; however, in the case where it is difficult or inconvenient to perform fine adjustment by rotating the tapping screw with the tapping screw wrenching structure, fine adjustment can be performed by rotating the tapping screw with a wrench conveniently by using a flat cylinder or a polygonal cylinder between the first external thread and the second external thread in a preferred modification of the present invention.

The beneficial effect of this application lies in:

when the self-tapping screw is used for laying floor tiles, the self-tapping screw and a matched nut structure assembly are assembled into a structure assembly support, the floor tiles are supported by the structure assembly support to be laid and leveled, and then fillers are filled in the self-tapping screw to finish the laying of the floor tiles; the floor tile laying method based on the self-tapping screws is simple and convenient to lay and level, only needs the simple self-tapping screws to ensure that the floor tiles can be well laid, the quality and the efficiency of the floor tile laying are guaranteed, the stability of the floor tiles and the ground is improved, the technical dependence on constructors is reduced, and the floor tile laying method is easy to apply on a large scale and operate in a standardized mode.

Drawings

Fig. 1 is a schematic structural view of a tapping screw in an embodiment of the present application;

FIG. 2 is a schematic structural view of a nut assembly according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a screw bracket according to an embodiment of the present application;

FIG. 4 is a schematic view of the structure of the screw bracket supporting the floor tile in the embodiment of the present application;

fig. 5 is a schematic structural view of an improved tapping screw in an embodiment of the present application;

FIG. 6 is a schematic view of the construction of an embodiment of the present application in which the structural assembly bracket supports a wall tile;

figure 7 is a schematic structural view of a structurally modified nut structural assembly in accordance with an embodiment of the present application.

Detailed Description

The biggest problem of the existing floor tile laying methods, such as wet laying and dry laying, is that the laying quality and efficiency are heavily dependent on the skill level of constructors, and standardized operation is difficult. This application creatively has researched and developed a new self-tapping screw that is used for floor tile to based on self-tapping screw and supporting nut structure subassembly of this application research and development, researched and developed a new floor tile laying method, support floor tile, make level through screw bracket promptly, then the floor tile laying method of refill, whole process only need make level through rotatory self-tapping screw can, easy operation, convenience. The whole floor tile laying process can be constructed only by carrying out simple training, the technical level requirement on constructors is low, the laying quality and efficiency of the floor tiles can be guaranteed only by strictly operating according to the construction standard, the dependence on the technical level of the constructors is reduced, and the standard operation is convenient. It will be appreciated that the self-tapping screw of the present application may be used in wall tile installations as well.

The present application is described in further detail below with reference to specific embodiments and the attached drawings. The following examples and figures are merely illustrative of the present application and are not to be construed as limiting the present application.

Example one

The specially designed tapping screw of this example, as shown in fig. 1, has a first external thread 11 at one end of its top; the tail end of the tapping screw is provided with a wrenching structure 12, and the part close to the tail end is provided with a second external thread 13; and, the first male thread 11 and the second male thread 13 have opposite thread directions. The screwing structure of the self-tapping screw can be a conventional straight groove, a cross groove H shape, a cross groove Z shape, a cross groove F shape, a square groove, a composite groove, an internal spline, an internal hexagonal flower shape, an internal triangle, an internal hexagonal, an internal 12-degree angle, a six-blade type groove or a high-torque cross groove; the embodiment specifically adopts a cross-shaped groove Z shape. The top of the self-tapping screw can be of a sharp structure or a flat structure; the sharp-pointed structure can conveniently be hit into the floor with the screw, if the flat head structure then need punch in advance to supporting expansion tube is firm. This example is embodied as the top of a sharp structure, as shown in fig. 1.

In the nut structural assembly for use with the tapping screw of this example, as shown in fig. 2, the geometric center of the nut structural assembly has a threaded hole 21, and the internal thread of the threaded hole 21 is matched with the second external thread 13 of the tail portion of the tapping screw. The screw hole is a through hole penetrating through the nut structural component, so that the self-tapping screw can still be rotated through the screwing structure of the self-tapping screw after the nut structural component is installed on the self-tapping screw. The geometric center of the nut structure component is a convex structure 22, and the periphery of the geometric center is provided with a floor tile installation plane 23 arranged on the same horizontal plane.

As shown in fig. 3, the nut member 32 of this example is attached to the tapping screw 31 to form a screw holder.

As shown in fig. 4, four sets of screw holders 42 support four corners of the floor tile 41, respectively, to support the floor tile 41.

The method for laying floor tiles based on the self-tapping screw of the embodiment is as follows:

firstly, driving a self-tapping screw into a floor, and installing a nut structural component matched with the self-tapping screw on the self-tapping screw to form a screw bracket; firstly, fully distributing the screw supports on a floor to be laid, leveling the mounting planes of the nut structure components on all the screw supports, and then laying floor tiles; the method for laying the floor tiles comprises the steps of after 1-2 rows or columns of floor tiles are laid, spacing at least 1 vacant site of each floor tile, leveling the laid floor tiles after the floor tiles are laid, and finely adjusting by rotating self-tapping screws to level the laid floor tiles; after the floor tiles are laid and leveled, filling materials into gaps between the floor tiles and the floor through the spaced vacant positions; and finally, laying, leveling and filling the floor tiles in the spaced vacant positions to finish the operation of laying the floor tiles. Wherein, the filler can adopt foaming glue, foaming cement or self-leveling slurry; the present example specifically uses self-leveling mud.

The floor tile laying method based on the self-tapping screws of the embodiment has the advantages that only the self-tapping screws need to be adjusted for two times of leveling, and the leveling method is simple and easy to operate; after the floor tiles are laid, filling the gaps with fillers to finish the laying of the floor tiles; whole floor tile laying process is lower to constructor's technical requirement, and can ensure quality and efficiency that floor tile laid through the simple mode of making level, the standardized operation of being convenient for.

Example two

In this embodiment, the tapping screw is improved on the basis of the first embodiment, specifically, the column between the first external thread and the second external thread of the tapping screw is designed into a flat column or a polygonal column, and in this embodiment, two symmetrical surfaces of the side surfaces of this part of the column are designed into clamping planes 51 to facilitate clamping by a wrench, as shown in fig. 5.

The improved floor tile laying method based on the tapping screw not only has all the advantages of the first embodiment, but also can rotate the tapping screw by a spanner to finely adjust the clamping plane 51 through the improved tapping screw of the embodiment under the condition that the fine adjustment through a tapping screw plate screwing structure is difficult or inconvenient because the clamping plane 51 is added.

EXAMPLE III

The method of laying floor tiles of this example is similar to the example, except that the example is modified for a screw cap construction assembly. Specifically, the nut structure assembly of this embodiment has an i-shaped retaining structure at the geometric center thereof as shown in fig. 7. The remaining components and the manner of laying the floor tiles are the same as in the first embodiment.

In a further development, the threaded bore of the nut component is designed as a counter bore in order to facilitate the fastening of the nut component.

The improved nut structure component with the I-shaped clamping structure can better fix floor tiles on a floor and has better stability when the floor tiles are paved.

Moreover, the nut structure component with the I-shaped clamping structure is particularly suitable for paving wall tiles. Therefore, the present embodiment adopts the nut structural component with the i-shaped clamping structure and the structural component bracket consisting of the same self-tapping screw as in the first embodiment to lay the wall tiles.

The wall tile laying method comprises the following steps:

firstly, driving a self-tapping screw into a wall body needing to be paved with wall tiles according to a required position;

installing a nut structural component matched with the self-tapping screw on the self-tapping screw to form a structural component bracket capable of supporting and positioning the wall tile;

positioning and leveling the nut structure components on all the structure component brackets;

paving the wall tiles on the nut structure components which are positioned and leveled; in the embodiment, the wall tiles are fixed by an upper row of structural component supports and a lower row of structural component supports, as shown in fig. 6, the lower half part of the I-shaped clamping structure of the nut structural component of the upper row of structural component supports 61 is clamped with the upper edge of the wall tiles 62, the upper half part of the I-shaped clamping structure of the nut structural component of the lower row of structural component supports 63 is clamped with the lower edge of the wall tiles 62, and the wall tiles 62 are fixedly arranged on the surface of a wall 64;

the wall tiles are finely adjusted by rotating the self-tapping screws combined with the nut structural components, so that the flatness and the positioning accuracy of the laid wall tiles are improved;

and filling filler into the cavity between the wall tile and the wall body to bond and fix the wall tile and the wall body.

Wherein, the filler can adopt foaming glue, foaming cement or self-leveling slurry; the present example specifically uses self-leveling mud.

It can be understood that if the nut structure component that has "worker" font clamping structure that does not adopt, directly adopt the nut structure component of embodiment one, then need carry out the side slot processing to the wall tile, make wall tile embedding structure component support carry out preliminary fixed, then the refill bonding of filling material is fixed.

Compared with the existing method for paving the wall tiles in a dry hanging mode, the method for paving the wall tiles is simpler and more convenient, the space between the wall tiles paved in the method and the wall body is smaller, the wall tiles can be comprehensively and integrally fixed and bonded with the wall body, and the wall tiles are not easy to fall off even if being broken into small blocks.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the spirit of the disclosure.

Claims

1. A self-tapping screw for building decoration which characterized in that: one end of the top of the tapping screw is provided with a first external thread; the tail end of the self-tapping screw is provided with a wrenching structure, and the part close to the tail end is provided with a second external thread; and the thread directions of the first external thread and the second external thread are opposite; and a cylinder between the first external thread and the second external thread of the tapping screw is a flat cylinder or a polygonal cylinder.

2. A self-tapping screw as in claim 1, wherein: the top of the self-tapping screw is of a sharp structure.

3. A self-tapping screw as in claim 1, wherein: the wrenching structure is a straight groove, a cross groove H type, a cross groove Z type, a cross groove F type, a square groove, a composite groove, an internal spline, an internal hexagonal flower shape, an internal triangle, an internal hexagon, an internal 12-angle, a six-blade groove or a high-torque cross groove.