Back-clamp-type facing wallboard locking device

Abstract

The invention belongs to the technical field of facing wallboard installing, and particularly discloses a back-clamp-type facing wallboard locking device. The back-clamp-type facing wallboard lockingdevice comprises an upper clamping piece and a lower clamping piece, the outer end of the upper clamping piece is turned towards one side of a facing wallboard or straightly extends to form an upper clamping sheet, and the upper clamping sheet is embedded into an upper groove in the back face of the facing wallboard; the outer end of the lower clamping piece is turned towards one side of the facing wallboard or straightly extends to form a lower clamping sheet, and the lower clamping sheet is embedded into a lower groove of the back face of the facing wallboard; the upper clamping piece and the lower clamping piece are fixed with a bolt through a structural supporting point, and the upper clamping sheet is matched with the lower clamping sheet to clamp the facing wallboard. The back-clam-type facing wallboard locking device adopts a back-clamp mode, short grooves are formed in the back face of a decorating material, and correspond to form two parallel faces or wedge-shaped, the clamping sheets enter the grooves, anti-drawing force is formed through friction force generated by clamping force of the clamping pieces, and the safety of the decorating material is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of installation of decorative wall panels, in particular to a back-clip type decorative wall panel locking device. Background technique [0002] The invention is suitable for hanging and sticking engineering of facing materials on the surface of indoor and outdoor walls of buildings. Materials such as stone, thermal insulation composite board, magnetic board, wood and glass etc. Techniques are divided into two categories: 1. chemical means, 2. physical means. Chemical installation mainly uses construction glue or cement, pasting or grouting, etc. to install decorative materials on the wall. The water absorption rate of the wood and the pulp material are different, and the coefficients of thermal expansion and contraction are different. Especially under outdoor conditions, they will separate and fall off in a short time, posing serious safety problems. This installation technology is basically not used exc...

AI Technical Summary

Problems solved by technology

From the working method of the above-mentioned fastener, it can be concluded that the pull-out resistance of the fastener is proportional to the pull-out performance of the decorative material and the thickness of the fastened decorative material; under a certain thickness of the decorative material, the fastener obtains a tensile strength Pull-out force can only depend on the pull-out resistance of decorative materials, especially natural decorative materials, whose structure is unstable, resulting in extremely uncontrollable pull-out force of fasteners

The pull-out resistance of fasteners is extremely uncontrollable, and safety cannot be actively controlled

[0005] 2. It cannot be purely physical connection

The chemical properties of glue determine that its connection strength and connection life cannot reach the ability of physical connection

The purely physical connection cannot be achieved, which means that the connection force and service life of the fastener are greatly affected by the quality of the glue

[0006] 3. Thin decorative materials cannot be dry hung

[0007] 4. It is inconvenient to process the connection points of decorative materials, which will easily affect the strength and connection quality of decorative materials

Due to the limited thickness of the decorative material, the degree of freedom of the side groove is small, the cutting disc swing is too large or the depth is too deep, which will easily lead to a decrease in the structural strength of the decorative material, or even a defect, which will reduce the pull-out resistance of the decorative material and affect the use.

The quality of the back bolt hole directly determines the pull-out force of the back bolt; there are two reasons why the quality of the back bolt hole is uncontrollable: 1. The drill bit is easy to deform, and the drilled holes often change; 2. Due to the small hole, the drilled Pore ​​quality is difficult to detect

Therefore, in the structural design of the pass-through fasteners, there is a lack of consideration for the convenience of decorative materials processing, which will eventually affect the connection quality

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