CN219694734U - Antiskid device suitable for FRP panel tensile test - Google Patents

Abstract

The utility model relates to the technical field of FRP plate tensile test, in particular to an anti-skid device suitable for FRP plate tensile test, which comprises: the two clamping pieces are symmetrically arranged; the FRP plate test piece and the clamping pieces can be tightly connected into a whole through the fixing holes and the fastening screws, the FRP plate test piece can be fixed in position on the clamping pieces through the positions between the connecting parts on two sides of the clamping pieces, and the two clamping pieces can be connected together to cooperatively work through the mortise on one side of the clamping piece and the tenon on the other side of the clamping piece, so that the anti-skid device can prevent the slippage problem of the FRP plate test pieces with different sizes in a tensile test.

Description

Antiskid device suitable for FRP panel tensile test

Technical Field

The utility model relates to the technical field of FRP plate tensile tests, in particular to an anti-skid device suitable for an FRP plate tensile test.

Background

The material tensile test is a test method for measuring the material characteristics under the axial tensile load, and the data obtained by the tensile test can be used for determining the data such as the elastic limit, the elongation, the elastic modulus, the proportional limit, the area reduction amount, the tensile strength, the yield limit and the like of the material so as to determine the correlation coefficient of the FRP material. In the FRP plate tensile test process, the two ends of the FRP plate test piece are required to be fixed, the tensile force is applied to the two ends of the FRP plate through the tensile equipment so as to carry out the FRP plate tensile test, the two ends of the test piece generally show rectangular shapes so as to facilitate the fixing work of the FRP plate test piece, but because the surface of the FRP plate is smooth, slippage easily occurs in the tensile test process, the tested data are inaccurate, the test time is long, and in order to prevent the slippage problem of the FRP plate test pieces of different types in the tensile test, an anti-skidding device suitable for the FRP plate tensile test is required. In the prior art, no anti-skid work is performed on the FRP plate test piece in a tensile test, and extrusion is mostly relied on in the process of fixing the tensile test, so that the FRP plate is greatly deformed and cannot meet the scientific principle of the test, and the phenomenon that the FRP plate is clamped and damaged easily occurs in the tensile process.

Disclosure of Invention

The utility model aims to provide an antiskid device suitable for FRP plate tensile test, which is characterized by comprising the following components: the two clamping pieces are symmetrically arranged; the fixing holes are formed in the two clamping pieces; the two mortise and tenon joints are arranged at two sides of the top of the two clamping pieces; the fastener is used for fixing the FRP plate test piece at the position of the matched fixing hole.

Anti-skid device suitable for FRP panel tensile test, its characterized in that still includes: the concave-convex friction surface is arranged between two sides of the clamping piece, and the outer surfaces of the concave-convex friction surfaces are square.

An anti-slip device suitable for FRP sheet tensile testing, wherein said fastener comprises: and the bolt is matched with the fixing hole.

Auxiliary device suitable for steel tensile test, characterized in that still includes: and the nut is matched with the bolt.

The utility model provides an antiskid device suitable for FRP plate tensile test through improvement, which has the following improvement and advantages compared with the prior art: according to the FRP plate test piece, through the fixing holes, the clamping pieces and the fastening pieces, when a tensile test of the FRP plate test piece with the fixing holes is carried out, the steel test piece is fixed between the two clamping pieces through the fixing holes and the fastening pieces, the anti-skidding work of the steel test piece is realized through the fastening pieces and the concave-convex friction surfaces on the clamping pieces, when the tensile test of the FRP plate test piece without the fixing holes is carried out, the two clamping pieces are tightly connected through the two mortise and the two tenon-convex parts on the clamping pieces, the position fixing of the FRP plate test piece on the clamping pieces is realized through the square mortise and the square mortise on the clamping pieces, and the whole device which is mutually extruded by the clamping pieces at the two ends of the tensile test machine is tightly connected with the test piece, so that the slipping problem can not occur in the tensile test.

Drawings

The utility model is further explained below with reference to the drawings and examples: FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a schematic view of the bolt and nut construction of the present utility model; FIG. 3 is a schematic view of the left clip structure of the present utility model; FIG. 4 is a schematic view of the right clip structure of the present utility model; FIG. 5 is a schematic top view of the left clip of the present utility model; FIG. 6 is a schematic top view of the right clip of the present utility model; reference numerals illustrate: 1. a left clamping piece; 2. a fixing hole; 3. a concave-convex friction surface; 4. concave mortise; 5. a tenon; 6. a bolt; 7. a nut; 8. and a right clamping piece.

Detailed Description

The following detailed description of the present utility model clearly and fully describes the technical solutions in the embodiments of the present utility model, and it is obvious that the described examples are only some examples of the present utility model, but not all examples. All other examples, based on examples in this utility model, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the utility model.

The utility model provides an antiskid device suitable for FRP plate tensile test through improvement, which comprises the following technical scheme: as shown in fig. 1 to 4, an antiskid device suitable for FRP sheet tensile test, comprises: the left clamping piece 1 and the right clamping piece 8 are symmetrically arranged; the fixing holes 2 are formed in the clamping pieces 1 and 8; the two mortise grooves 4 and the two tenon protrusions 5 are formed in the two sides of the tops of the left clamping piece 1 and the right clamping piece 8; the fastener is used for fixing the FRP plate test piece in cooperation with the fixing hole 2. The fastener cooperates with the fixed orifices 2, can make the fixed work between clamping piece 1, the FRP panel sample that has the fixed orifices and the clamping piece 8, and the cooperation work of two clamping pieces can be realized in mutual joint between two mortise and tenon protruding.

Further, the method further comprises the following steps: the concave-convex friction surface 3 is arranged in the middle of the left clamping piece 1 and the right clamping piece 8, and one end of the outer part of the concave-convex friction surface 3 is in a square structure; through the square structure on the surface of the concave-convex friction surface 3 on two sides and the irregular surface of the FRP plate test piece, the friction force between the FRP plate test piece and the left clamping piece 1 and between the FRP plate and the right clamping piece 8 is increased.

Further, the fastener includes: the bolt 6, the bolt 6 is fit with the fixed orifices 2. Further comprises: the nut 7, the nut 7 and the bolt 6 are adapted. The fixation between the two clips 1 and 8 is achieved by means of bolts 6 and nuts 7, and fixation holes 2 on the left clip 1 and the right clip 8.

Specifically, the using method of the auxiliary device comprises the following steps: when carrying out the tensile test of FRP panel test piece that has the fixed orifices, place the FRP panel test piece on the concave-convex friction surface 4 of cassette 1, pass the fixed orifices 2 on two clamping pieces 1 and 8 and the fixed orifices on the FRP panel test piece with bolt 6, then realize the fixed between two clamping pieces 1 and 8 and the FRP panel test piece through nut 7, through a plurality of bolts 6, realize the stable fixation between steel sample and clamping pieces 1 and 8, the in-process of tensile test has been avoided, FRP panel test piece and clamping pieces 1 and 8 separation, square structure and FRP panel test piece's irregular surface on the concave-convex friction surface 3 also can avoid FRP panel test piece and clamping pieces 1 and 8 to break away from in the tensile process through the mode of increase frictional force, make this auxiliary device prevent that FRP panel test piece from appearing the problem of sliding in tensile test.

Claims (2)

1. Anti-skid device suitable for FRP panel tensile test, characterized in that includes: the left clamping piece (1) and the right clamping piece (8), wherein the clamping pieces (1) and (8) are symmetrically arranged; a plurality of fixing holes (2), wherein the fixing holes (2) are formed on the two clamping pieces (1); the two mortise holes (4) and the two tenon protrusions (5) are respectively arranged at two sides of the tops of the left clamping piece (1) and the right clamping piece (8); the fastener is used for fixing the FRP plate test piece at the position of the matched fixing hole (2).

2. The antiskid device for FRP panel tensile test of claim 1, further comprising: the concave-convex friction surface (3) is arranged between the two sides of the left clamping piece (1) and the right clamping piece (8), and the outer surfaces of the concave-convex friction surfaces (3) are all irregularly square.